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SERVICE MANUAL

HF/VHF/UHF ALL MODE TRANSCEIVER

i706MKTMG

INTRODUCTION
This service manual describes the latest service information for the IC-706MKIIG HF/VHF/UHF ALL MODE TRANSCEIVER at the time of publication.
VERSION NO. #02, #12 #03, #13 #04, #14 #05, #15 #08, #18 VERSION Europe France Spain U.S.A. Other SYMBOL EUR FRA ESP USA OTH

DANGER
NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. This will ruin the transceiver. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when connecting the transceiver. DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector. This could damage the transceiver's front end.

To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation.

ORDERING PARTS
Be sure to include the following four points when ordering replacement parts: 1. 10-digit order numbers 2. Component part number and name 3. Equipment model name and unit name 4. Quantity required
1110004080 S.IC µPC2709T IC-706MKIIG MAIN UNIT 05 pieces 10 pieces 8810009020 Screw FH M2.6 x 5 ZK IC-706MKIIG Top cover

REPAIR NOTES
1. Make sure a problem is internal before disassembling the transceiver. 2. DO NOT open the transceiver until the transceiver is disconnected from its power source. 3. DO NOT force any of the variable components. Turn them slowly and smoothly. 4. DO NOT short any circuits or electronic parts. An insulated tuning tool MUST be used for all adjustments. 5. DO NOT keep power ON for a long time when the transceiver is defective. 6. DO NOT transmit power into a signal generator or a sweep generator. 7. ALWAYS connect a 50 dB to 60 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment. 8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.

Addresses are provided on the inside back cover for your convenience.

TABLE OF CONTENTS
SECTION 1 SECTION 2 SECTION 3 SPECIFICATIONS INSIDE VIEWS CIRCUIT DESCRIPTION

3 - 1 RECEIVER CIRCUITS ................................................................................................................................ 3 - 1 3 - 2 TRANSMITTER CIRCUITS......................................................................................................................... 3 - 4 3 - 3 PLL CIRCUITS ............................................................................................................................................ 3 - 6 3 - 4 LOGIC CIRCUITS ....................................................................................................................................... 3 - 8

SECTION 4

ADJUSTMENT PROCEDURES

4 - 1 PREPARATION BEFORE SERVICING ...................................................................................................... 4 - 1 4 - 2 PLL ADJUSTMENTS................................................................................................................................... 4 - 2 4 - 3 TRANSMITTER ADJUSTMENTS ............................................................................................................... 4 - 2 4 - 4 RECEIVER ADJUSTMENTS....................................................................................................................... 4 - 8 4 - 5 SET MODE ADJUSTMENT....................................................................................................................... 4 - 10

SECTION 5 SECTION 6 SECTION 7 SECTION 8

PARTS LIST MECHANICAL PARTS AND DISASSEMBLY SEMI-CONDUCTOR INFORMATION BOARD LAYOUTS

8 - 1 DISPLAY BOARD........................................................................................................................................ 8 - 1 8 - 2 MAIN BOARD.............................................................................................................................................. 8 - 3 8 - 3 HPF AND DRIVER BOARD ........................................................................................................................ 8 - 5 8 - 4 PA UNIT....................................................................................................................................................... 8 - 7 8 - 5 PLL UNIT..................................................................................................................................................... 8 - 9 8 - 6 FILTER BOARD......................................................................................................................................... 8 - 11

SECTION 9 SECTION 10

BLOCK DIAGRAM VOLTAGE DIAGRAM

SECTION 1
s GENERAL
· Frequency coverage Receive Transmit : 0.030 430.000 1.800 3.500 7.000 10.100 14.000 18.068 21.000 24.890 28.000 50.000 144.000 430.000

SPECIFICATIONS
s RECEIVER
­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ 200.000 470.000 1.999 3.999 7.300 10.150 14.350 18.168 21.450 24.990 29.700 54.000 148.000 450.000 MHz* MHz* MHz* MHz* MHz* MHz MHz MHz MHz MHz MHz MHz* MHz* MHz* · Receive system : SSB/CW/AM/WFM Double superheterodyne FM Triple superheterodyne · Intermediate frequencies MODE SSB/AM-N/FM AM/FM-N CW RTTY WFM : 2nd IF 9.0115 MHz 9.0100 MHz 9.0106 MHz 9.0105 MHz 10.7000 MHz 3rd IF 455 kHz* 455 kHz* -- -- -- 1st IF 69.0115 MHz 69.0100 MHz 69.0106 MHz 69.0105 MHz 70.7000 MHz

*FM or FM-N mode only

*Depending on version. · Mode · Number of memory ch. · Antenna connector : USB, LSB, CW, RTTY (FSK), AM, FM, WFM (WFM is for receiver only) : 107 (99 regular, 6 scan edges,1 call) : SO-239 ! 2 (for HF/50 MHz and 144/440 MHz)/50 : Less than ± 7 ppm from 1 min. to 60 min. after power ON. After that, rate of stability less than ±1 ppm/hr. at +25°C (+77°F). Temperature fluctuations 0°C to +50°C (+32°F to +122°F) less than ± 5 ppm. : max. power standby max. audio 20 A 1.8 A 2.0 A

· Receive sensitivity

: AM 13 µV 2 µV 2 µV 1 µV 1 µV 1 µV

(pre-amp ON) FM -- -- 0.5 µV 0.25 µV 0.18 µV 0.18 µV

· Power supply requirement : 13.8 V DC ±15% (negative ground) · Frequency stability

FREQUENCY SSB/CW/RTTY 0.5 ­ 1.8 MHz -- 1.8 ­ 28 MHz* 0.16 µV 28 ­ 29.999 MHz 0.16 µV 50 MHz band 0.13 µV 144 MHz band 0.11 µV 440 MHz band 0.11 µV

Note: SSB, CW and AM modes are measured at 10 dB S/N; FM mode at 12 dB SINAD. *Except 4­4.5 MHz, 8­9 MHz.

· Current consumption Transmit Receive

· Squelch Sensitivity SSB FM · Selectivity* SSB, CW, RTTY AM/FM-N FM

: (pre-amp ON) Less than 5.6 µV Less than 0.32 µV : More than 2.4 kHz/­6 dB Less than 4.8 kHz/­60 dB More than 8.0 kHz/­6 dB Less than 30 kHz/­40 dB More than 12 kHz/­6 dB Less than 30 kHz/­60 dB

· Usable temperature range : ­10°C to +60°C (+14°F to +140°F) · Dimensions : 167(W) ! 58(H) ! 200(D) mm (projections not included) 69/16(W) ! 29/32(H) ! 77/8(D) inch · Weight · CI-V connector · ACC connector : 2.45 kg (5 lb 6 oz) : 2-conductor 3.5 (d) mm (1/8")/8 : 13-pin

*Without an optional filter unit and with mid bandwidth selected.

s TRANSMITTER
· Output power 1.8­50 MHz band 144 MHz band 440 MHz band · Modulation system SSB AM FM · Spurious emissions Below 47.5 MHz Above 47.5 MHz · Carrier suppression · Microphone connector · KEY connector · RTTY connector : Balanced modulation Low level modulation Variable reactance modulation : Less than ­50 dB (typical) Less than ­60 dB : More than 40 dB : 8-pin modular jack (600 ) : 3-conductor 6.35 (d) mm (1/4") : 3-conductor 3.5 (d) mm (1/8") : SSB/CW/RTTY/FM AM SSB/CW/RTTY/FM AM SSB/CW/RTTY/FM AM 5­100 W 2­40 W 5­50 W 2­20 W 2­20 W 2­8 W

· Spurious and image rejection ratio: HF band 70dB 50 MHz band 65 dB (except IF through) 144/440 MHz band 65 dB · Audio output power (at 13.8 V DC) · RIT variable range · PHONES connector · EXT SP connector : More than 2.0 W at 10% distortion with an 8 load : ± 9.99 kHz : 3-conductor 3.5 (d) mm (1/8")/8 : 2-conductor 3.5 (d) mm (1/8")/8

· Unwanted sideband supp. : More than 50 dB

All stated specifications are subject to change without notice or obligation. 1-1

SECTION 2

INSIDE VIEWS

¡MAIN AND FILTER BOARDS

FILTER board

D/A converter (IC2201: M62352GP) RX preamplifier (IC151: µPC1658G) HPF board 1st mixer (D271: HSB88WSTR) 1st IF filter (FI511: FI-261) 2nd mixer * (D551: HSB88WSTR) 2nd IF filter (FI561: FL-23) Space for optional filters FL-100, FL-101, FL-103 FL-233, FL-232 MAIN CPU clock (X2161: CR-636) MAIN CPU * (IC 2001: HD6433337YA56F) MAIN board 3rd IF filter for FM * (FI791: SFPC455E-TC01) MIC amplifier (IC931: µPC5023GS-077-E1) AF selector switch * (IC861: BU4052BCFV-E2) Discriminator (X791: CDB455CX24) Balanced modulator * (IC1041: NJM1496V) FM IF IC * (IC791: TA31136FN) Tx FM PLL IC * (IC1011: LC7153M-TLM)

¡PA AND PLL UNITS
Power amplifers (Q171, Q172, Q231: SRFJ7044)

PA unit

DRIVER board DDS IC (IC101: SC-1246) Drive amplifers (Q161, Q211: MRF1508TI) Predrive amplifier (Q101: 2SK2854) Predrive amplifer (Q121: MXR9745) AF power amplifer (IC231: LA4425A) PLL IC * (IC461: LMX2306TMX) PLL unit AF volume controller (IC201: M5282FP) VCO3 * (Q361: 2SK508) Reference oscillator (X621: CR-275A 30.00000 MHz)

BFO DDS IC (IC901: SC-1287)

VCO1 * (Q301: 2SK508) VCO2 * (Q331: 2SK508)

*Located under side of the point

2-1

SECTION 3

CIRCUIT DESCRIPTION
· Used RF high-pass filter (HPF board)
Frequency Control Entrance Frequency Control Entrance signal coil (MHz) signal coil (MHz) 0.03­2 MHz 2­4 MHz 4­8 MHz 8­15 MHz THH L2H L3H L4H D111 D121 D131 D141 15­22 MHz 22­30 MHz 30­40 MHz 40­60 MHz L5H L6H THH B7H D151 D161 D111 D171

3-1 RECEIVER CIRCUITS
3-1-1 HF/50 MHz RF CIRCUIT (FILTER, MAIN AND HPF BOARDS)
HF/50 MHz RF filters pass only the desired band signals and suppress any undesired band signals. The HF/50 MHz RF circuit has 7 low-pass filters and 8 high-pass filters for specified band use. HF/50 MHz RF signals from the [ANT1] connector, pass through one of 7 low-pass filters as below, the transmit/ receive switching relay (FILTER board; RL1) and low-pass filter (FILTER board; L1, L2, C1­C5), and are then applied to the MAIN board via J1 (FILTER board). · Used RF low-pass filter (FILTER board)
Frequency Control Entrance Frequency Control Entrance signal coil (MHz) signal coil (MHz) 0.03­2 MHz 2­4 MHz 4­8 MHz 8­15 MHz L1 L2 L3 L4 RL15 RL13 RL5 RL9 15­22 MHz 22­30 MHz 30­60 MHz L5 L6 L7 RL11 RL7 RL3

3-1-2 VHF AND UHF RF CIRCUITS (PA UNIT)
The VHF and UHF RF circuits pass and amplify only the desired band signals and suppresses any undesired band signals. The both RF circuits have a preamplifier and bandpass filters respectively. · VHF RF CIRCUIT The VHF RF signals from the [ANT2] connector pass through the low-pass filter (L263­L265, C274­C276) and antenna switching circuit (D291­D293). The signals are applied to the bandpass filter (D403, D409, D408), and are then amplified at the preamplifier circuit (Q403). The amplified signals are then applied to the another bandpass filter (D407, D406, D410). · UHF RF CIRCUIT The UHF RF signals from the [ANT2] connector pass through the high-pass filter (L316, L317, C326­C327), lowpass filter (L313­L315, C322­C324) and antenna switching circuit (D341, D342, D343). The signals are amplified at the preamplifier circuit (Q453) between the 2 bandpass filters (D454, D453 and D454, D456). The filtered signals are applied to the MAIN board via J481 (PA unit) and are then applied to the preamplifier circuit. D403, D408, D409, D406, D407, D410, D454, D453, D454 and D456 are varactor diodes that tune the ceinter frequency of an RF passband for wide bandwidth receiving and good image response rejection. On the VHF band, receiving signals are above 129 MHz, the switching diodes (D404, D405) are turned off by the control signal "2MBL" from PLL unit, then the varactor diodes (D408, D407) are disconnected.

The signals from the FILTER board are applied to or bypass the 20 dB attenuator (R122, R125, R126). The signals pass through the high-pass filter (L132, L133, C132­C137) to suppress strong signals below 1.6 MHz and are then applied to the HPF board via the "SAF" terminal. (1) 0.03­2 MHz and 30­40 MHz The signals pass through a low-pass filter (L101, L102, C101­C105), and then applied to the preamplifier circuit on the MAIN board. (2) 2­30 MHz The signals from the low-pass filter (L101, L102, C101­C105) are applied to one of 6 high-pass filters as at right above and are then applied to the preamplifier circuit on the MAIN board. (3) 40­60 MHz The signals pass through the low-pass filter (L172, L173, C172­C176) and the high-pass filter (L174, L175, C177­C181) via D171 and are then applied to the preamplifier circuit on the MAIN board. · RECEIVER CONSTRUCTION
FILTER BOARD
[ANT1] 0.03­60 MHz 1st LO: 69.0415 MHz­ 530.0115 MHz

FI671
2nd LO: 60.0 MHz

HPF BOARD HPF PA UNIT

SSB, CW filter FI561 Crystal filter NB gate FI681 AM, FM-N filter to AM demod. circuit (D761) to BFO circuit (IC1041) to FM demod. circuit (IC791)

LPF

Pre-amp. IC151 amp.

FI511 Crystal filter 1st mixer D271
69.0115 MHz

2nd mixer D511

9.0115MHz

[ANT2] 60­470 MHz

NB circuit

Optional filter-1 Optional filter-2

MAIN BOARD BPF to WFM detector circuit (IC631)

LPF

3-1

3-1-3 PREAMPLIFIER CIRCUIT (MAIN BOARD)
The preamplifier circuit in the IC-706MKIIG has approx. 15dB gain over a wide-band frequency range. When the preamplifier is turned ON, the signals from the RF circuit are applied to the preamplifier (IC151) via D2182. Amplified or bypassed signals are applied to the 1st mixer circuit (D271).

While in WFM mode, the IF signals pass through the lowpass filter (L601, C601­C603), IF amplifiers (Q601, Q611), ceramic filter (FI611). The signals are then applied to the WFM demodulator circuit (IC631).

3-1-7 NOISE BLANKER CIRCUIT (MAIN BOARD) The noise blanker circuit detects pulse type noise, and turns OFF the signal line when noise appears.

3-1-4 1ST MIXER CIRCUIT (MAIN BOARD)
The 1st mixer circuit mixes the receive signals with the 1st LO signal to convert the receive signal frequencies to a 69 or 70.7 MHz 1st IF signal. The signals from the preamplifier circuit, or signals which bypass the preamplifier, are passed through a low-pass filter and then applied to the 1st mixer (D271). The 1st LO signals (69.0415­539.0115 MHz) enter the MAIN board from the PLL unit via J281. The LO signal is amplified at IC281, filtered by a lowpass filter, and then, applied to the 1st mixer. · 1st IF frequency
Mode SSB/AM-N/FM AM/FM-N CW RTTY WFM 1st IF 69.0115 MHz 69.0100 MHz 69.0106 MHz 69.0105 MHz 70.7000 MHz

A portion of the signals from FI561 are amplified at the noise amplifiers (Q621, Q632, amplifier section of IC631), then detected at the noise detector (D632) to convert the noise components to DC voltages. The converted voltages are then applied to the noise blanker switch (Q634, Q635). At the moment the detected voltage exceeds Q634's threshold level, Q635 outputs a blanking signal to close the noise blanker gate (D561, D562) by applying reverse-biased voltage. The detected voltage from D632 is also applied to the noise blanker AGC circuit (Q631, Q633) and is then fed back to the noise amplifier (IC631) as a bias voltage. The noise AGC circuit prevents closure of the noise blanker gate for long periods by non-pulse-type noise. The time constant of the noise blanker AGC circuit is determined by R637. The 2nd IF signals from the noise blanker gate are then applied to the 2nd IF circuit.

3-1-5 1ST IF CIRCUIT (MAIN BOARD)
The 1st IF circuit filters and amplifies the 1st IF signals. The 1st IF signals are applied to a Crystal Filter (FI511) to suppress out-of-band signals. The 69 MHz 1st IF signals (except WFM) pass through the crystal filter (FI511), however, the 70.7 MHz 1st IF signal (WFM) passes through a bandpass filter (L501­L505, C501­C506). Then the filtered signals are applied to the IF amplifier (IC521). The AGC voltage is supplied to the transmit/receive switching circuit (D521, D522) and D521/D522 function as PIN attenuators for AGC operation. The amplified signals are then applied to the 2nd mixer circuit (D551) via the bandpass filter (L542­L546, C542­C545).

3-1-8 2ND IF CIRCUIT
The 2nd IF circuit amplifies and filters the 2nd IF signals. The 2nd IF signals from the noise blanker gate (D561, D562) are amplified at the IF amplifier (IC571) via the Tx/Rx switch (D572) and applied to a 2nd IF filter as shown below. The filtered or bypassed signals are applied to the buffer amplifier (Q721), IF amplifiers (Q731, Q741) and buffer amplifier (Q751) to obtain a detectable level at the demodulator circuit · Used 2nd IF filter Mode SSB, CW, RTTY AM nar. AM, FM nar. FM SSB nar.

Used filter FL-272 (FI671) FL-94 (FI681) Bypassed Optional FL-223 Optional FL-100, FL101, FL-223, FL-232 Optional FL-103

Control signal 2F23 2F80 2FTH OP1 or OP2 OP1 or OP2

3-1-6 2ND MIXER CIRCUIT (MAIN BOARD)
The 2nd mixer circuit mixes the 1st IF signals and 2nd LO signal (60.00 MHz) to convert the 1st IF to a 2nd IF. The 1st IF signals from the band pass filter (L542­L546, C542­C545) are converted to 9 MHz or 10.7 MHz 2nd IF signals at the 2nd mixer (D551). The 2nd IF signals are applied to the bandpass filter (FI561) to suppress undesired signals, such as the 2nd LO signal, and are then applied to the noise blanker gate (D561, D562). · 2nd IF frequency
Mode 2nd IF SSB/AM-N/FM 9.0115 MHz AM/FM-N 9.0100 MHz CW 9.0106 MHz RTTY 9.0105 MHz WFM 10.7000 MHz

CW nar., RTTY nar. SSB wide, CW wide, RTTY wide

OP1 or OP2

The amplified signals from the buffer amplifier (Q751) are shared between the SSB/CW/RTTY detector (IC841), AM detector (D761) and AGC detector (D771). Output signals from the buffer amplifier (Q721) are applied to the FM IF IC (IC791).

3-2

3-1-9 IF SHIFT CIRCUIT (MAIN BOARD)
The IF shift circuit shifts the center frequency of IF signals to electronically shift the center frequency. The IF shift circuit shifts the 1st LO and BFO within ±1.2 kHz in SSB/CW/RTTY modes or ±250 Hz in CW-N/RTTY-N modes. As a result, the 2nd IF (also 1st IF) is shifted from the center frequency of the 2nd IF filter (FI671, FI681 or optional IF filters). This means 2nd IF signals do not pass through the center of the 2nd IF filter. Therefore, the higher or lower frequency components of the IF are cut out. Since the BFO frequency is also shifted the same value as the 1st IF, frequency is corrected at the detector. In the IC-706MKIIG, the 1st LO frequency is shifted to change the 2nd IF because a fixed 2nd LO frequency (60 MHz) is used. The 1st IF filter (FI671) and crystal filter (FI561) have 15 kHz pass-band widths, and do not affect IF shift operation.

3-1-11 S-METER CIRCUIT (MAIN BOARD)
The S-meter circuit indicates the relative received signal strength while receiving by utilizing the AGC voltage which changes depending on the received signal strength. The output voltage of the AGC amplifier (IC811b, pin 7) is applied to the main CPU (IC2001, pin 36) as an S-meter signal via the analog switch (IC2101, pins 5, 3) as the "SML" signal. The FM S-meter signal from the FM IF IC (IC791, pin 12) is also applied to the analog switch (IC2101, pin 5) via the meter amplifier (Q774). The S-meter signal from the main CPU (IC2001) is applied to the sub CPU and is then displayed on the S-meter readout.

3-1-12 SQUELCH CIRCUIT (MAIN BOARD)
The squelch circuit mutes audio output when the S-meter signal is lower than the [RF/SQL] control setting level. The S-meter signal is applied to the main CPU (IC2001, pin 36) in SSB/CW/RTTY modes and is compared with the threshold level set by the [RF/SQL] control. The [RF/SQL] setting is picked up at the sub CPU (DISPLAY board; IC1, pin 99). The main CPU compares the S-meter signal and [RF/SQL] setting, and controls the AF selector switch (IC861) to cut out AF signals via IC2122a. In FM mode, a portion of the AF signals from the FM IF IC (IC791, pin 9) are applied to the active filter section (pin 8) where noise components above 20 kHz are amplified. The signals are rectified at the noise detector section and then output from pin 14. The noise squelch signal from pin 14 is applied to the main CPU (IC2001, pin 31) via the analog switch (IC2101, pins 14, 13) as the "NSQL" signal. The CPU then controls the AF selector switch (IC861).

3-1-10 AGC CIRCUIT (MAIN BOARD)
The AGC (Automatic Gain Control) circuit reduces IF amplifier gain to keep the audio output at a constant level. The receiver gain is determined by the voltage on the AGC line (Q776 collector). The 2nd IF signal from the buffer amplifier (Q751) is detected at the AGC detector (D771) and applied to the AGC amplifier (IC811b). IC811b sets the receiver gain with the [RF/SQL] control via the "RFGV" signal line. When receiving strong signals, the detected voltage increases and the AGC voltage decreases via the DC amplifier (Q776). The AGC voltage is used for the bias voltage of the transmit/receive switching PIN diodes (D521, D522, D572, D573) to attenuate the received signals. When AGC slow is selected, C775 and R778 are connected in parallel to obtain appropriate AGC characteristics.

3-1-13 DEMODULATOR CIRCUITS (MAIN BOARD)
(1) SSB/CW/RTTY modes The 2nd IF signals from the buffer amplifier (Q751) are mixed with the BFO signal from the PLL unit at the product detector (IC841, pin 6). The detected AF signals from IC841 (pin 1) are applied to the AF selector switch (IC861, pin 12).

· AGC CIRCUIT
R772 RFGV (RF gain control) R773 AGC FAST IC811b Amp. R774 R775 R778 R777 2nd IF signal C771 AGC det. Q771 D771 R776 Q776, Q777 AGC amp. AGC line D772

(2) AM mode The 2nd IF signals from the buffer amplifier (Q751) are detected at the AM detector (D761). The detected AF signal is applied to the AF selector switch (IC861, pin 15). (3) FM/FM NARROW modes The 2nd IF signals from the buffer amplifier (Q721) are applied to the FM IF IC (IC791, pin 16) where the IF signals are converted into 455 kHz IF signals. The signals pass through FI791 and are applied to the quadrature detector section. X791 is used for quadrature detector. The detected AF signals from pin 9 are then applied to the AF selector switch (IC861, pin 14) via the de-emphasis circuit (IC811a). (4) WFM mode The 2nd IF signals from the IF amplifier (Q611) are applied to the WFM demodulator circuit (IC631, pins 2, 3) where the IF signals are converted into AF signals. The detected AF signals from pin 8 are then applied to the AF selector switch (IC861, pin 11).

C773

Q773

C775

C772

8V

Q772

C774

"SML" S-meter signal

3-3

3-1-14 AF SELECTOR SWITCH (MAIN BOARD)
The AF signals from one of the detector circuits are applied to the AF selector switch (IC861). IC861 consists of dual 4channel analog switches which are selected with a mode signal and the squelch control signal. · AF selector switch
IC861 SSB/CW/ RTTY AM FM WFM
12 X0 15 X2 14 X1 11 X3 INH X 13

Audio signals from the front or rear panel [MIC] connector enter the microphone amplifier IC (IC931, pin 22) and are then amplified at the microphone amplifier or speech compressor section. Compression level is adjusted with the [COMP GAIN] control (R945). The amplified or compressed signals are applied to the VCA section of IC931. The microphone gain setting from the D/A converter (IC2201, pin 2) is applied to the VCA control terminal (IC931, pin 10). The resulting signals from pin 9 are then applied to the buffer amplifier (Q961) via the analog switch (IC1141). External modulation input from the [ACC] socket (pin 11) is also applied to Q961. While in SSB mode, the amplified signals from the buffer amplifier (Q961) are passed through the AF selector switch (IC971) and are then applied to the balanced modulator (IC1041). While in AM/FM mode, the amplified signals from the buffer amplifier (Q961) are applied to the limiter amplifier (IC981a) and splatter filter (IC981b). The signals are then applied to the AF selector switch (IC971) in AM mode or to the varactor diode (D1012) in FM mode.

AFI signal to PLL unit

AFS1, AFS2 SQL

9, 10 6

3-1-15 AF AMPLIFIER CIRCUIT (PLL UNIT)
The AF amplifier amplifies the demodulated signal to a suitable driving level for the speaker. The AF signals from the AF selector switch (MAIN board; IC861) are applied to the PLL unit via the "AFI" signal line. The CW side tone/beep tone and optional synthesized voice are also applied to the PLL unit via the "AFBP" signal line. The AF signals from the MAIN board are applied to the VCA (Voltage Controlled Amplifier) circuit (IC201). The AF gain setting from the main CPU is converted to DC voltage at the D/A converter (MAIN board IC2201) and applied to the VCA control terminal (IC201, pin 8) via the "AFGC" signal line. The output AF signal from IC201 (pin 9) is power-amplified at IC231 to drive the speaker.

3-2-2 VOX CIRCUIT (MAIN BOARD)
The VOX (Voice-Operated-Transmission) circuit sets transmitting conditions according to voice input. When the VOX function is activated, the microphone signals from IC931 (pin 19) are applied to the VOX comparator section in the main CPU (IC2001, pin 32) via the VOXL line. A portion of the power amplified AF signals from the AF power amplifier (PLL unit; IC231) are amplified at the buffer amplifier (IC931, pins 14, 15) and applied to the anti-VOX comparator section in the main CPU (IC2001, pin 33) via the AVXL line. Then the main CPU compares these and controls the transmitter circuit.

3-2 TRANSMITTER CIRCUITS
3-2-1 MICROPHONE AMPLIFIER CIRCUIT (MAIN BOARD)
The microphone amplifier circuit amplifies microphone input signals and outputs the amplified signals to the balanced modulator or FM modulation circuit. · Microphone amplifier
[COMP GAIN] (R945) IC931 MIC signal
22 Amp. COMP VCA 9 Buffer Buffer 2, 3

3-2-3 BALANCED MODULATOR (MAIN BOARD)
The balanced modulator converts the AF signals from the microphone amplifier to a 9 MHz IF signal with a BFO (Beat Frequency Oscillator) signal. Microphone signals from the AF selector switch (IC971) are applied to the balanced modulator (IC1041, pin 1). The BFO signal from the PLL unit is applied to IC1041 (pin 10) as a carrier signal. IC1041 is a double balanced mixer IC and outputs a double side band (DSB) signal with ­40 dB of carrier suppression. R1045 adjusts the balanced level of IC1041 for maximum carrier suppression. The resulting signal passes through a 9 MHz IF filter (FI671 in SSB/CW/RTTY modes) to suppress unwanted side-band signals. In AM mode, R1042 is connected to upset the balance of IC1041 via Q1041 for leaking the BFO signal as a carrier signal. The CW keying/RTTY TX signal is applied to IC1041 pin 1.

COMS from CPU
11

MIGV from D/A convertor (IC35)
10

AMOD to IC1141

VOXL to CPU AVOXL to CPU

19

Buffer

15 Buffer

14

AFO signal

3-4

3-2-4 FM MODULATION CIRCUIT (MAIN BOARD) The microphone signals from Q961 are applied to the limiter amplifier (IC981a) and the splatter filter (IC981b). The 1750 Hz European tone signal from the main CPU (IC2001 pin 40) is also applied to IC981a pin 2 for European repeaters. The sub-audible tone signal (67.0­254.1 Hz) from the main CPU (IC2001 pin 37) is also applied to IC981b pin 5 for repeater use. The resulting signals are applied to the VCO circuit (Q1011, D1012) via R1002 to change the reactance of the varactor diode (D1012) for FM modulation. The modulated signal is amplified at the buffer amplifier (Q1013) and bypasses the 9 MHz IF filter.

The 144 MHz RF signals from the 1st mixer (D271) via the low-pass filter (L251­253, C253­259) bypass the filters and pass through the bandpass filter (L182­L184, L195, L196, C181­C186, C195­C197) in the MAIN board. The signals are amplified at the RF amplifier (IC221) and YGR amplifer (IC231) and are then applied to the PA unit. The 440 MHz RF signals from the 1st mixer (D271) via the low-pass filter (L251­253, C253­259) are amplified at RF amplifier (IC222) and passed through the bandpass filter (FI371­FI373) in the MAIN board. The filtered signal is amplified at the YGR amplifer (IC231) and is applied to the PA unit. The signals from IC231 enter the PA unit and is amplified at the drive amplifiers (Q101, Q121) in sequence. The amplified signals are applied to the band switch (RL1). The HF/50 MHz RF signals from the band switch (RL1) are amplified at the drive (DRIVER board; Q161) and power (Q171, Q172) amplifiers to obtain a stable 100 W of RF output power. The power-amplified signals are then applied to the [ANT1] connector via one of the 7 low-pass filters in the FILTER board. For the 144/440 MHz RF signals from the band switch (RL1), 50 W for 144 MHz band or 20 W for 440 MHz band of RF output power is obtained at the drive (DRIVER board; Q211) and power amplifier (Q231). The power-amplified signals are applied to the [ANT2] connector via the antenna switching circuit and low-pass (144 MHz band) or high pass (440 MHz band) filters.

3-2-5 TRANSMITTER IF CIRCUIT (MAIN BOARD)
The 9 MHz IF signal from the modulation circuit passes through the 9 MHz IF filter (FI671 in SSB/CW/RTTY modes; FI681 in AM/FM-N modes; through in FM mode). The signal is amplified at IC571, and then passes through the total gain adjustment volume (R579), and the crystal filter (FI561). The signal is then applied to the 2nd mixer (D551). The signal is mixed with the 2nd LO signal (60 MHz) and converted to a 69 MHz IF signal at the 2nd mixer (D551). The 69 MHz IF signal passes through a bandpass filter, IF amplifier (IC521) and 69 MHz IF filter (FI511), and is then converted to the displayed frequency at the 1st mixer (D271) with the 1st LO signal. The mixers (D271, D551) and IF amplifiers (IC521, IC571) are used commonly for both receiving and transmitting. The ALC voltage is supplied to the transmit/receive switching circuit (D521/D522 and D572/D573). D521/D522 and D572/D573 function as PIN attenuators for ALC operation.

3-2-7 ALC CIRCUIT (MAIN BOARD)
The ALC (Automatic Level Control) circuit reduces the gain of IF amplifiers in order for the transceiver to output a constant RF power set by the RF power setting even when the supplied voltage shifts, etc. The HF/50 MHz RF power signal level is detected at the power detector (FILTER board; D9), buffer-amplified at IC1b and applied to the MAIN board as the "HFOR" voltage. The 144 MHz and 440 MHz RF power signals are detected at the power detectors (PA unit; D262, D263) and (PA unit; D312, D313) respectively. The detected signals are applied to the MAIN board as the "VFOR" or "UFOR" voltages.

3-2-6 RF CIRCUIT (PA UNIT, MAIN AND HPF BOARD)
The RF circuit amplifies the displayed frequency signal to obtain 100 W of RF output power for HF/50 MHz bands and 50 W for the 144 MHz band, 20 W for the 440 MHz band. The HF/50 MHz RF signals from the 1st mixer (D271) via the low-pass filter enter the HPF board and then pass through one of 8 high-pass filters (Refer to 3-1 for used RF high-pass filter). The 50 MHz RF signals pass through a low-pass filter additionally. The filtered signals return to the MAIN board, are amplified at the YGR amplifier (IC231), and are then applied to the PA unit. · TRANSMITTER CONSTRUCTION
BFO 60.0 MHz SSB

[ANT1] HF+50 MHz

HPF BOARD 1st LO FI1
HPF · · · HPF Crystal filter except FM

Q161
Amp.

Q171 Q172
Amp.

FILTER BOARD
LPF [ANT2] 144/440 MHz

IC931
MIC
Amp.

IC1041

9.0115 MHz Crystal filter

IC231
Amp. Amp.

AM FM, AM
IDC

Q1011

D551 FI671, FI681, or optional filter

BPF FM only

D231

BPF 50 MHz BPF

Q101 Q121 Q211 Q231
Amp. Amp.

FM

LPF 144 MHz HPF 440 MHz

FM tone

MAIN BOARD

144 MHz BPF 440 MHz

PA UNIT

3-5

The "FOR", "VFOR" and "UFOR" voltages are combined to the "FORL" voltage and then applied to IC1091b (pin 6). The "POCV" voltage from the D/A converter (IC2201, pin 3), determined by the RF power setting, is applied to IC1091b (pin 5) as the reference voltage. When the "FORL" voltage exceeds the "POCV" voltage, ALC bias voltage from IC1091a (pin 1) controls the PIN diodes (D521, D522, D572, D573) using Q1092. This adjusts the output power to the level determined by the RF power setting until the "FORL" and "POCV" voltages are equalized. In AM mode, IC1091a operates as an averaging ALC amplifier with Q1091 and C1091. Q1071 turns ON and the "POCV" voltage is shifted for 40 W AM output power (maximum, 20 W for 144 MHz band, 8 W for 440 MHz band) through R1080. The ALC bias voltage from IC1091a is also applied to the main CPU (IC2001 pin 34) as the "ALCL" voltage for ALC meter indication. An external ALC input (minus voltage) from the [ACC] socket (pin 6) is shifted to plus voltage at D1131 and is applied to the buffer amplifier (Q1131). External ALC operation is identical to that of the internal ALC.

(3) SWR meter The "FORL" and "REFL" voltages are applied to the main CPU (IC2001, pins 32 and 36) via the analog switch (IC2101, pins 11, 13 and 4, 3) respectively. The main CPU compares the ratio of "FORV" to "REFV" voltage and indicates the SWR for the [ANT1] connector.

3-3 PLL CIRCUITS
3-3-1 GENERAL
The PLL unit generates a 1st LO frequency (69.0415­530.0115 MHz), a 2nd LO frequency (60 MHz), a BFO frequency (9.01 MHz), an FM 3rd LO frequency (9.4665/9.4650 MHz) and a TX FM PLL reference frequency (9.0115/9.0100 MHz). The 1st LO PLL adopts a mixer-less dual loop PLL system and has 3 VCO circuits. The BFO uses a DDS and the 2nd LO uses a fixed frequency double that of the crystal oscillator.

3-3-2 1ST LO PLL CIRCUIT
The 1st LO PLL contains a main loop and reference loop forming a dual loop system. The reference loop generates a 10.6605 to 10.683 MHz frequency using a DDS circuit, and the main loop generates a 69.0415 to 269.50575 MHz frequency using the reference loop frequency. While operating on 60 MHz and above, the output is doubled at D531 for oscillating a wide frequency range.

3-2-8 APC CIRCUIT (MAIN BOARD)
The APC (Automatic Power Control) circuit protects the power amplifiers on the PA unit from high SWR and excessive current for the HF/50 MHz band. The reflected wave signal appears and increases on the antenna connector when the antenna is mismatched. The HF/50 MHz reflected signal level is detected at D10 (FILTER board), and is amplified at the APC amplifier (IC1091c) and applied to the ALC circuit as the reference voltage. For the current APC, the driving current at the power amplifier is detected in the voltages ("ICH" and "ICL") which appear at both terminals of a 0.012 resistor (R201) on the PA unit. The detected voltages are applied to the differential amplifier (IC1091d, pins 13, 12). When the current of the power amplifier exceeds 22 A, IC1091d controls the ALC line via IC1091a to prevent excessive current flow.

(1) REFERENCE LOOP PLL The oscillated signal at the reference VCO (Q1, D1) is amplified at the amplifiers (Q21, Q51) and is then applied to the DDS IC (IC101, pin 46). The signal is then divided and detected on phase with the DDS generated frequency. The detected signals output from IC101 (pin 56) is converted into a DC voltage (lock voltage) at the loop filter (R133, R134, C133) and then fed back to the varactor diode (D1) in the VCO circuit. (2) MAIN LOOP PLL The oscillated signal at one of the main loop VCOs (Q301, Q331, Q361) is amplified at the buffer amplifiers (Q10) and is then applied to the PLL IC (IC461, pin 6). The signal is then divided and detected on phase with the reference loop output frequency. The detected signal output from the PLL IC (IC461, pin 2) is converted into a DC voltage (lock voltage) at the active loop filter and then fed back to one of the varactor diodes (D301, D331, D361) in the VCO circuits. While operating on 60 MHz and above, the VCO output is doubled at the doubler circuit (D531) and amplified at the ampolifier (IC541). The oscillated signal passes through a low-pass or bandpass filter and is then applied to the MAIN board as a 1st LO signal.

3-2-9 RF, ALC, SWR METER CIRCUITS (MAIN BOARD)
While transmitting, RF, ALC or SWR meter readings are available and can be selected with the [MET] switch. (1) Power meter The "FOR", "VFOR" and "UFOR" voltages are combined to the "FORL" voltage, and it is then applied to the main CPU (IC2001, pin 35) via the analog switch (IC2101, pins 11, 13) for indicating the output power. (2) ALC meter The ALC bias voltage from IC1091a pin 1 is applied to the main CPU (IC2001, pin 34) via the "ALCV" signal line for indicating the ALC level.

3-6

3-3-3 2ND LO AND REFERENCE OSCILLATOR CIRCUITS
The reference oscillator (X621, Q621) generates a 30.0 MHz frequency used for the 1st LO and BFO circuits as a system clock and for the 2nd LO signal. The oscillated signal is amplified at the buffer amplifier (Q661), and is doubled at Q681 and the 60 MHz frequency is picked up at the bandpass filter (L681, L682). The 60 MHz signal is applied to the MAIN board as a 2nd LO signal.

3-3-4 BFO CIRCUIT
The DDS IC (IC901) generates a 10-bit digital signal. The signal is converted into an analog wave signal at the D/A converter (R951­R970). The analog wave is passed through the high-pass filter and low-pass filter. The 9 MHz BFO signal is then applied to the MAIN board via the "BFO" signal line. While transmitting in RTTY mode, the RTTY keying signal is applied to IC901 pin 3 to shift the generated frequency and to obtain 2 frequencies for FSK operation. While receiving in FM or FM narrow mode, the BFO circuit generates a 9.4665 MHz frequency as the 3rd LO signal. While transmitting in FM or FM narrow mode, the BFO circuit generates a 9.0115 MHz or 9.0100 MHz frequency as the TX FM PLL reference frequency, respectively.

· FREQUENCY CONSTRUCTION
[ANT1] 0.03­ 60 MHz [ANT2] 60­ 1st mixer 470 MHz D271 1st IF to WFM detector (IC631) Product detector IC841 AF signals to AF selector switch

69.0115 MHz (WFM: 70.7 MHz) BPF

2nd mixer D551 2nd IF

69.0415­ 539.0115 MHz (1st LO)

60.0 MHz (2nd LO)

9.01 MHz (BFO)

MAIN BOARD PLL UNIT
69.0415­ 129.0115 MHz 129.0115­ 539.0115 MHz

to TX FM PLL IC (IC1011) 9.0115 MHz (FM) 9.0100 MHz (FM nar.)

to FM IF IC (IC791) 9.4665 MHz (FM) 9.4650 MHz (FM nar.)

2 Q301 Q331 Q361 Main loop PLL
1/ N divider

IC461 BPF BPF

Phase detector

1/ 86

Q1

10.665­ 10.683 MHz

2

Q681

D/A

Ref. loop PLL IC101 Phase DDS detector

DDS IC901

Ref. Osc. 30.0 MHz

X621

Q621

3-7

· BFO frequency Mode
USB LSB CW CW-R RTTY AM FM FM nar. WFM

RX BFO/3rd LO frequency [MHz]
9.0130 9.0100 9.0106 (­CW pitch frequency) 9.0106 (+CW pitch frequency) 9.008375 (2125 Hz tone) 9.008885 (1615 Hz tone) No output 9.4665 (3rd LO) 9.4650 (3rd LO) No output

TX BFO/FM PLL ref. frequency [MHz]
9.0130 9.0100 9.0106 (­CW pitch frequency) 9.0106 (+CW pitch freqency) 9.0105 (MARK) 9.0100 9.0115 (PLL ref.) 9.0100 (PLL ref.) No output

3-4-2 SUB CPU PORT ALLOCATIONS (DISPLAY board; IC1)
Pin number 1 18 19, 20 Port name SFTL PTTS BU1S, BU2S Description Input port for the [SHIFT] control. Outputs a PTT signal. Low : While transmitting. Outputs displaly backlight control signal. Input port for the [PHONES] jack connection detection. High : When the headphone or external speaker is connected to the [PHONES] jack. Input port for the [RIT] switch. Input port for the [PTT] switch on the microphone. Input port for the microphone up/down signal. Input port for the [AF] control. Input port for the [RF/SQL] control.

80

PHNK

81 96 97 98

RSK PTTL FUDL AFGL SQLL

IF shift: Center, RTTY: Normal polarity

3-4 LOGIC CIRCUITS
3-4-1 BAND SELECTION DATA (MAIN BOARD AND PLL UNIT)
To select the correct RF low-pass filter, high-pass filter and VCOs on the PLL unit, the CPU outputs the following band selection data from the I/O expander (MAIN board; IC2231, IC2232), the D/A converter (MAIN board; IC2201) or DDS IC (PLL unit; IC101) depending on the display frequency. The D/A convertor output from IC2201 (pin 18) is doubled at IC891d to obtain the band voltage for external equipment. · Band selection data IC2231, IC2201 IC2232 (MAIN) (MAIN) HPF LPF 1/2 band BPF LPF voltage
L1 L2 L3 L4 L5 L6 B7W B7 VCO1 B8 L8 0.96 V VCO2 LOF3 LOF4 LOF5 LOF4 B9 B9 VCO3 LOF6 L1 L2 L3 L4 L5 L6 L7 3.70 V 3.19 V 2.68 V 0V 2.18 V 1.69 V 1.19 V VCO2 LOF2 VCO1 LOF1

99

3-4-3 I/O EXPANDER PORT ALLOCATIONS (MAIN board; IC2221)
Pin number 4 Port name MODS Description Outputs select signal for the Tx AF selector switch (IC1141). Hign : When AM and SSB modes are selected. Outputs AM mode select signal. High : When AM mode is selected. Outputs FM and FM-N modes select signal. High : When FM and FM-N modes are selected. Outputs WFM mode select signal. High : When WFM mode is selected. Output select signals for the Rx AF selector switch (IC861). 11, 12 AFS1, AFS2
MODE PORT AFS1 AFS2 WFM High High FM High High AM Low Low SSB/CW/RTTY Low Low

Frequency [MHz]
0.03­ 1.999999 2.0­ 4.0­ 3.999999 7.999999

IC101 (PLL) VCO LPF BPF

5

AMS

6

FMS

7

WFMS

8.0­ 10.999999 11.0­ 14.999999 15.0­ 21.999999 22.0­ 29.999999 30.0­ 39.999999 40.0­ 59.999999 60.0­128.999999 129.0­143.999999 144.0­148.000000 148.000001­ 199.999999 400.000000­ 470.000000

13

UNFM

Outputs non-FM mode select signal. High : When SSB/CW/RTTY/AM modes are selected. Outputs an audio mute signal for the analog switch (IC971). High : While transmitting in CW/RTTY modes.

14

MINH

3-8

3-4-4 MAIN CPU PORT ALLOCATIONS (MAIN unit; IC2001)
Pin number 13 Port name DASK Description Input port for the external paddle (DASH). Low : During key down Input port for the external paddle (DOT) or straight key. Low : During key down Input port for the PLL unlock signal from the DDS IC (PLL unit; IC101) and PLL IC (PLL unit; IC461). Low : while PLL unlock Input port for transmit control signal from the optional AT-180/AH-4 antenna tuners. Input port for the optional antenna tuner connection detection. High : When the optional antenna tuner is connected. Outputs a squelch control signal for the external unit. Input port for the [POWER] switch. Low : When the [POWER] switch is pushed. Outputs the switching relay (PA unit; RL591) control signal. High : While power is ON. Outputs start signal for the optional AT-180 antenna tuner. Output port : Beep audio signals while receiving. : CW side tone signals while transmitting. Outputs start signal for the optional AH-4 Outputs squelch mute control signal, applied to the AF mute switch (MAIN board; Q772). Low : While squelch is closed. Input port for the CTCSS decode signal from the low-pass filter (IC811C). Input port from the [RTTY] or [MIC] connector. High : While transmitting. Input port for the VOX voltage. Input port for the anti-VOX voltage. ALC level input port for the ALC meter indication. Outputs subaudible tone signals. Input port for the optional UT-102 (Voice synthesizer unit) activation signal. High : During speech synthesis.

(MAIN unit; IC2001)­Continued
Pin number 40 41 42 43 44 45 46 48 49­51 Port name ETON MSST MDT MCK BSTB DSST ASTB PBST CON2­ CON0 PDST PMST Description Outputs 1750 Hz European tone signal. Outputs a strobe signal for the optional UT-102 (Voice synthesizer unit). Outputs serial data for the I/O expanders, optional AT-180/UT-102. Outputs a clock signal for the I/O expanders, optional AT-180/ UT-102. Outputs a strobe signal for the I/O expander ICs (IC2231, IC2232). Outputs a strobe signal for the I/O expander ICs (IC2221, IC2222). Outputs a strobe signal for the D/A converter IC (IC2201). Outputs a strobe signal for the BFO DDS IC (PLL unit; IC901). Output mode control signals for the 1st LO DDS IC (PLL unit; IC101). Outputs a strobe signal for the 1st LO DDS IC (PLL unit; IC101). Outputs a strobe signal for the 1st LO PLL IC (PLL unit; IC461). Outputs serial data for the DDS ICs (PLL unit; IC101, IC901) and PLL IC (PLL unit; IC461). Outputs a clock signal for the DDS ICs (PLL unit; IC101, IC901) and PLL IC (PLL unit; IC461). Outputs AGC rate select signal Low : When AGC fast is selected. Outputs the NB switch (Q635) control slignal. High : When the [NB] is turned ON, except FM/WFM modes. Outputs the attenuator circuit control slignal. High : When the [ATT] is turned ON. Outputs a strobe signal for the TX FM PLL IC (IC1011). Input port for transmit/receive switching signals for the [ACC] connector. Low : While transmitting. Outputs a CW keying signal or RTTY TX signal. Output port for CI-V bus line. Input port for CI-V bus line.

14

DOTK

15

UNLK

16

TKEY

17

TCON

18

SQSS

19

PWK

52 53

20

POWS

54

PDT

21

ATST

55

PCK

22

BEEP

61

AFGS

23

AHST

62

NBS

24

AFMS

63

ATTS

30

CTCV

71

FMST

31 32 33 34 37

SNDL VOXL AVXL ALCV TONE

74

SNDS

75 78 79

KDS LTXD LRXD

39

SPBK

3-9

SECTION 4 ADJUSTMENT PROCEDURES
4-1 PREPARATION BEFORE SARVICING
s REQUIRED TEST EQUIPMENT
EQUIPMENT
DC power supply

GREDE AND RANGE
Output voltage Current capacity Measuring range Frequency range Impedance SWR Frequency range Frequency accuracy Sensitivity Frequency range Measuring range Frequency range Output level Frequency range Measuring range Frequency range Measuring range : 13.8 V DC : 30 A or more : : : : 10­200 W 1.8­500 MHz 50 Less than 1.2 : 1

EQUIPMENT
Distortion meter Oscilloscope Digital multimeter AC millivoltmeter DC voltmeter DC ammeter

GREDE AND RENGE
Frequency range Measuring range Frequency range Measuring range Imput impeadance Measuring range Input impedance : 1 kHz ±10 % : 1­100 % : DC­100 MHz : 0.01­10 V : 10 M/DC or beter : 10 mV­10 V : 50 k/V DC or better

RF power meter (terminated type)

Frequency counter

: 0.1­500 MHz : ±1 ppm or better : 100 mV or better : 0.1­500 MHz : 0.01­10 V : 0.1­30 MHz : 0.1 µV­32 mV (­127 to ­17 dBm) : 0­500 MHz : 0 to ±5 kHz : At least 500 MHz : 0­100 %

Measurement capability: 1 A/50 A Frequency range Measuring range : 300­3000 Hz : 1­500 mV

RF voltmeter Standard signal generator (SSG)

Audio generator Spectram analyzer Attenuator External speaker

Frequency range : At least 1000 MHz Spectraum bandwidth : 100 kHz or more Power attenuation Capacity Input impedance Capacity : 50 or 60 dB : 150 W or more :8 : 5 W or more

FM deviation meter Modulation analyzer

` CONNECTIONS

· Microphone connector · (Rear panel view) ­ Pin 5 MIC GND Pin 6 MIC INPUT 1 8 Pin 7 GND Pin 4 PTT to [MIC] + Audio generator to [EXT SP]

AC millivoltmeter

Speaker Spectrum analyzer Attenuator 50 or 60 dB FM deviation AAmeter Modulation aanalyzer

DC power supply AA13.8 V/30 A

AM meter 1 A, 30 A

to [DC 13.8 V]

RF power meter A200 W/50

Frequency counter to [ELEC KEY] Keyer to [ANT 1/2] Standard signal aagenerator

CAUTION:
i706MKIIG

DO NOT connect the signal generator while transmitting.

4-1

4-2 PLL ADJUSTMENTS
ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT UNIT
REFERENCE 1 · Display frequency: Any · L623 (PLL unit) : Center FREQUENCY · Receiving 2 PLL

VALUE

ADJUSTMENT POINT UNIT
PLL

LOCATION
Connect an RF volt- Maximum level meter to check point (0 dB or more) P681. Connect a frequency 60.000000 MHz counter to check point P681.

ADJUST
L681, L682 L601 L623 R602

REFERENCE 1 · Display frequency: 0.0300 MHz · Mode : USB LOOP LOCK · Receiving VOLTAGE MAIN LOOP LOCK VOLTAGE 1 · Display frequency: 128.99999 MHz · Mode : USB · Receiving 2 · Display frequency: 199.99999 MHz · Mode : USB · Receiving 3 · Display frequency: 470.00000 MHz · Mode : USB · Receiving

PLL

Connect a digital 2.0 V multimeter or oscilloscope to check point CP131. Connect a digital 4.0 V multimeter or oscilloscope to check point CP401. 4.0 V

PLL

C4

PLL

PLL

C306

C335

4.0 V

C367

4-3 TRANSMITTER ADJUSTMENTS
ADJUSTMENT
TRANSMIT TOTAL GAIN

ADJUSTMENT CONDITION

MEASUREMENT UNIT LOCATION

VALUE

ADJUSTMENT POINT UNIT
MAIN

ADJUST
L511, L512, L562, L563, L566

1 · Display frequency: 14.10000 MHz · Mode : USB · [Q1 RF POWER] : H · Connect an audio generator to [MIC] connector and set as: 1.5 kHz/3 mV · Transmitting 2 · Transmitting 1 · Display frequency: 14.10000 MHz · Mode : USB · [Q2 MIC GAIN] : 5 · Connect an audio generator to [MIC] connector and set as: 1.5 kHz/30 mV · Transmitting 2 · Display frequency: 52.00000 MHz · Transmitting 3 · Display frequency: 145.00000 MHz · Transmitting 4 · Display frequency: 435.00000 MHz · Transmitting

Rear Panel

Connect an RF Maximum RF power power meter to [ANT1] connector.

50 W Rear Panel Connect an RF 100 W power meter to [ANT1] connector. MAIN

R579 R1082

OUTPUT POWER

100 W

R1084

Connect an RF 50 W power meter to [ANT2] connector. 20 W Rear Panel Connect a spectrum Minimum carrier level analyzer to [ANT1] connector via an attenuator. MAIN

R1086

R1088 R1045

1 · Display frequency: 14.10000 MHz CARRIER · Mode : USB and LSB SUPPRESSION · Apply no signal to [MIC] connector. · Transmitting

4-2

· PLL AND PA UNITS

L601
Reference loop lock CP131 voltage check point Reference loop lock C4 voltage adjustment Main loop lock voltage check point

L623 R602 L682 L681

Reference frequency adjustment

2nd LO level adjustment

CP401

P681 Reference frequency
check point

Main loop lock voltage adjustment

C306 C335 C367

· MAIN UNIT

R1082 R1084 Output power R1086 adjustment R579 L511 L512
Transmit total gain

R1088

R1045 Carrier suppression L562 L563 L566
adjustment

4-3

TRANSMITTER ADJUSTMENTS (continued)
ADJUSTMENT
FM VCO

ADJUSTMENT CONDITION

MEASUREMENT UNIT LOCATION
Connect a digital 1.8 V multimeter to check point CP1011.

VALUE

ADJUSTMENT POINT UNIT
MAIN

ADJUST
C1022

1 · Display frequency: 29.10000 MHz · Mode : FM · [Q1 RF POWER] : H · [M4 TON] : OFF · Apply no signal to [MIC] connector. · Transmitting 1 · Display frequency: 29.10000 MHz · Mode : FM · [Q1 RF POWER] : H · [M4 TON] : OFF · [Q2 MIC GAIN] : 5 · Connect an audio generator to [MIC] connector and set as: 1 kHz/30 mV · Transmitting 1 · Display frequency: 29.10000 MHz · Mode : FM · [Q1 RF POWER] : H · [M4 TON] : OFF · [Q2 MIC GAIN] : 5 · Connect an audio generator to [MIC] connector and set as: 1 kHz/30 mV and OFF · Transmitting 2

MAIN

FM DEVIATION

Rear Panel

Connect an FM devi- ±4.5 kHz ation meter to [ANT1] connector via an attenuator.

MAIN

R1002

RESIDUAL AM

Connect an RF Minimum power differpower meter to ence with modulation [ANT1] connector. and unmodulation.

MAIN

adjust in sequence L511, L512, then adjust L562, L563, L566.

After adjustment, varify the TRANSMIT TOTAL GAIN and OUTPUT POWER adjustments. MAIN Connect an osillo- 100 mVp-p scope to check point CP1041. MAIN R1042

1 · Display frequency: 14.10000 MHz AM · Mode : AM MODULATION · [Q1 RF POWER] : H · [Q2 MIC GAIN] : 5 · Disconnect the plug from J281 on the MAIN board. · Apply no signal to [MIC] connector. · Transmitting 2 · Connect the plug to J281 on the MAIN board. · Apply no signal to [MIC] connector. · Transmitting 3 · Connect an audio generator to [MIC] connector and set as: 1 kHz/30 mV · Transmitting CW CARRIER LEVEL 1 · · · · · Display frequency: 14.10000 MHz Mode : CW [Q1 RF POWER] : H [Q5 KEY SPEED] : 60 [M4 BRK] : BK (semi break-in) · CW paddle :n · Connect an RF power meter to [ANT1] connector. · Transmit dots for a while using a paddle.

Rear Panel

Connect an RF 35 W power meter to [ANT1] connector. Connect a modula- 90 % modulation tion analyzer to [ANT1] connector via an attenuator. Connect an osilloscope to check point CP921 and [ANT1] connector. At the point where the CW carrier completely comes up in a 10 msec. delay after CP921 voltage comes up.
Keying (CP921)

R1080

R999

MAIN

R921

10 msec.

4-4

· MAIN UNIT

CW carrier level CP921 check point FM VCO check point

CP1011 C1022 FM VCO
adjustment

AM modulation CP1041 check point

R921

CW carrier level adjustment

AM modulation J281 pre-setting

R1002 FM deviation
adjustment

L511 L512
Residual AM adjustment

R999 R1042 adjustment R1080
AM modulation

L562 L563 L566

4-5

TRANSMITTER ADJUSTMENTS (continued)
ADJUSTMENT
IDLING CURRENT (for drive amplifiers)

ADJUSTMENT CONDITION
PA

MEASUREMENT UNIT LOCATION
Connect a DC ammeter between the DC power supply and transceiver's DC power socket (P601 on the PA unit).

VALUE
0.5 A increase from that R162 is in maximum counterclockwise position.

ADJUSTMENT POINT UNIT
PA

ADJUST
R162

1 · Display frequency: 14.10000 MHz · Mode : USB · [Q2 MIC GAIN] : 1 (minimum) · turn R162, R174, R175, R214, R231 (on the PA unit) to maximum counterclockwise position. · Disconnect the plug from J571 on the PA unit. · Transmitting 2 · Display frequency: 145.10000 MHz · Mode : USB · [Q2 MIC GAIN] : 1 (minimum) · Transmitting

1.0 A increase from step 1.

R214

(for final amplifiers)

3 · Display frequency: 14.10000 MHz · Mode : USB · [Q2 MIC GAIN] : 1 (minimum) · Transmitting 4 · Transmitting 5 · Display frequency: 145.10000 MHz · Mode : USB · [Q2 MIC GAIN] : 1 (minimum) · Transmitting

1.0 A increase from that R174 is in maximum counterclockwise position. 1.0 A increase from step 3. 2.0 A increase from step 4.

R174

R175 R231

SWR DETECTION

1 · Display frequency: 14.10000 MHz · Mode : USB · Ground CP1071 on the MAIN board. · Connect an audio generator to [MIC] connector and set as: 1.5 kHz/30 mV · Transmitting 2 · Transmitting

Rear Panel

Connect an RF 100 W power meter to [ANT1] connector.

Quick set mode

Q2 MIC GAIN

FILTER Connect a digital Minimum voltage multimeter to check point W16.

FILTER

C58

3

After remove the jumper wire from CP1071 on the MAIN board.

4-6

· PA UNIT

R214 R162

Drive idling adjustment

R174
Idling current pre-setting

J571

R231 R175

Final idling adjustment

· MAIN AND FILTER UNITS

C58

SWR detection adjustment

SWR detection W16 check point

CP1071 SWR detection
pre-setting

4-7

4-4 RECEIVER ADJUSTMENTS
ADJUSTMENT
RECEIVER TOTAL GAIN

ADJUSTMENT CONDITION

MEASUREMENT UNIT LOCATION

VALUE

ADJUSTMENT POINT UNIT
MAIN

ADJUST
L731, L741

1 · Display freq. : 14.10000 MHz · Mode : USB · [RIT] : OFF · [M4 AGC] : Fast (F AGC) · [M3 NB] : OFF · [P.AMP/ATT] : Preamp ON · Connect a standard signal generator to the [ANT1] connector and set as: Frequency : 14.10150 MHz Level : 0.5 µV* (­113 dBm) Modulation : OFF · Receiving 2 · [P.AMP/ATT] : Preamp OFF · Set an SSG as: Frequency : 14.10150 MHz Level : 500 µV* (­53 dBm) and OFF Modulation : OFF · Receiving

Rear Panel

Connect an AC milli- Muximum AF output voltmeter to the [EXT level SP] jack with an 8 dummy load.

Rear Panel

Connect an AC milli- 30 dB of AF level differvoltmeter to the [EXT ence SP] jack with a 8 dummy load.

MAIN

R741

WFM RECEIVING

1 · Display freq. : 14.10000 MHz · Mode : WFM · Set an SSG as: Frequency : 14.10000 MHz Level : 500 µV* (­53 dBm) Modulation : OFF · Receiving 1 · Display freq. : 14.10000 MHz · Mode : USB · [P.AMP/ATT] : Preamp ON · [M3 NB] : OFF · R623 (MAIN) : Center · Connect an SSG to the [ANT1] connector and set as: Frequency : 14.1015 MHz Level : 18 µV* (­82 dBm) Modulation : OFF and apply the following signal to the [ANT1] connector.
100 msec.

MAIN

Connect a digital 4.0 V multimeter or oscilloscope to check point CP631.

MAIN

L632

NOISE BLANKER

MAIN

Connect an oscillo- Adjust the maximum scope to check point noise wave displayed CP632. on the oscilloscope.

MAIN

L621, L633

1 msec.

· Receiving : ON 2 · [M3 NB] · Set an SSG as: Level : 10 µV* (­87 dBm) Modulation : OFF · Receiving
*This output level of the standard signal generator (SSG) is indicated as SSG's open circuit.

At the point where the noise just reduces.

MAIN

R623

4-8

· MAIN UNIT

Noise blanler check point Noise blanler adjustment

CP632 L633 L621 R741
Receiver total gain adjustment

WFM receiving L632 adjustment WFM receiving CP631 check point

L741

L731

4-9

4-5 SET MODE ADJUSTMENT
ADJUSTMENT
ENTERING 1 ADJUSTMENT SET MODE

ADJUSTMENT CONDITION
· Enter adjustment set mode: 1 Turn power OFF. 2 Terminate the [REMOTE] jack with a 3.5(d) mm mini-plug. 3 While pushing [P.AMP/ATT] and [TUNE/CALL], turn power ON. · Connect an RF power meter to [ANT1] connector. · Connect a DC ammeter between the DC power supply and transceiver's DC power socket (P601 on the PA unit). · Transmit using an external PTT switch. · Connect an RF power meter to [ANT1] connector. · Connect an RF power meter to [ANT1] connector. · Transmit using an external PTT switch. · Transmit using an external PTT switch. · Connect an RF power meter to [ANT1] connector. · Transmit using an external PTT switch. · Transmit using an external PTT switch. · Connect an RF power meter to [ANT2] connector. · Transmit using an external PTT switch. · Transmit using an external PTT switch. · Connect an RF power meter to [ANT2] connector. · Transmit using an external PTT switch. · Transmit using an external PTT switch. · Connect an RF power meter to [ANT1] connector. · Connect an audio generator to [MIC] connector and set as : Level : 1.5 kHz/30mV · Transmit using an external PTT switch. · Connect a 50 dummy load or power meter to [ANT1] connector. · Connect a 50 dummy load or power meter to [ANT1] connector.

DISPLAY
USB

OPERATION
Push [F-3 (TX)] to enter the TX adjustment setting mode. Then advance to the following setting, or push [UP]/[DN] to scroll the display. Set a total current at 15 A by adjusting R1125 on the MAIN board. Push [MENU] to set the "SET IdAPC" after returning receiving condition.

RX TX

Id APC

1

SET IdAPC

FILTER 1 CALIBRATION POWER METER (14 MHz) 1

GO FILTER CAL SET 90 % SET 50 % SET TUNE Po SET TUNE Po SET 90 % SET 50 % SET 90 % SET 50 % ALC START

Push and hold [MENU (GO)] to make the calibration.
· Transceiver transmits for a while.

Set to 90 W using [MAIN DIAL], then push [MENU] while transmitting. Set to 50 W using [MAIN DIAL], then push [MENU] while transmitting. Set to 10 W using [MAIN DIAL], then push [MENU] while transmitting. Set to 10 W using [MAIN DIAL], then push [MENU] while transmitting. Set to 45 W using [MAIN DIAL], then push [MENU] while transmitting. Set to 25 W using [MAIN DIAL], then push [MENU] while transmitting. Set to 18 W using [MAIN DIAL], then push [MENU] while transmitting. Set to 10 W using [MAIN DIAL], then push [MENU] while transmitting. Push and hold [MENU] to set ALC reference level while transmitting.

2 TUNING POWER (14 MHz) (50 MHz) POWER METER (145 MHz) 1

2 1

2 POWER METER (430 MHz) 1

2 ALC METER 1

SWR METER 1 2

SWR 1 LOAD SWR 2 LOAD

Push [MENU] to set SWR reference level. Push [MENU] to set SWR2 level.
· The display returns to the same as the ADUSTMENT SET MODE above.

Push [F-1 (EXIT)] to exit adjustment set mode.

4 - 10

SET MODE ADJUSTMENT (continued)
ADJUSTMENT
ENTERING 1 ADJUSTMENT SET MODE

ADJUSTMENT CONDITION
· Enter adjustment set mode: 1 Turn power OFF. 2 Terminate the [REMOTE] jack with a 3.5(d) mm mini-plug. 3 While pushing [P.AMP/ATT] and [TUNE/CALL], turn power ON. · Connect a standard signal generator to [ANT2] and set as : Frequency : 60.05150 MHz Modulation : OFF · Receiving

DISPLAY
USB

OPERATION
Push [F-2 (RX)] to enter the RX adjustment setting mode. Then advance to the following setting, or push [UP]/[DN] to scroll the display. Set a connected SSG's level at 10 dB of S/N ratio with AC millivoltmeter. Set maximum AF level using the [MAIN DIAL], then push [MENU] to set the "VHF1 BPF1 L".

RX TX

SENSITIVITY 1

VHF1 BPF1 L

2

3

· Same operation as step 2 for the listed BPFs. · Set an SSG as: Modulation : OFF VHF1 BPF2 L : 60.05150 MHz VHF1 BPF1 M : 90.50150 MHz VHF1 BPF2 M VHF1 BPF1 H : 128.9515 MHz VHF1 BPF2 H VHF2 BPF1 L : 129.1015 MHz VHF2 BPF2 L VHF2 BPF1 M : 145.1515 MHz VHF2 BPF2 M VHF2 BPF1 H : 170.0015 MHz VHF2 BPF2 H UHF BPF1 L : 400.0015 MHz UHF BPF2 L UHF BPF1 M : 435.1515 MHz UHF BPF2 M UHF BPF1 H : 470.0015 MHz UHF BPF2 H · Receiving · Connect an SSG to [ANT1] connector and set as: Frequency : 14.1515 MHz Level : OFF · Receiving · Set an SSG as Level Modulation · Receiving · Set an SSG as Level Modulation · Receiving : : 50 µV (­73 dBm) : OFF : : 50 mV (­13 dBm) : OFF

: : : : : : : :

Same Same Same Same Same Same Same Same

as as as as as as as as

left left left left left left left left Push [MENU] to set the "S0 level".

S-METER

1

S0 LEVEL

2

S9 LEVEL +60dB LEVEL

Push [MENU] to set the "S9 level".

3

Push [MENU] to set the "+60 dB level".
· The display returns to the same as the ADUSTMENT SET MODE above.

Push [F-1 (EXIT)] to exit adjustment set mode.

4 - 11

SECTION 5 PARTS LIST
[FRONT UNIT]
REF NO.
S1

[DISPLAY BOARD]
DESCRIPTION
SW-159 (EC24B50B)

ORDER NO.
2250000290 ENCODER

REF NO.
R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R29 R30 R33 R36 R37 R38 R39 R40 R41 R42 R44 R45 R46 R47 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R65 R66 R67 R68 R69 R70 R71 R72 R73 R74 R75 R76 R83 R84 R85 R92 R93 R95 R96 R97 R98 R99 R100 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115

ORDER NO.
7030003590 7030003560 7030003590 7030003560 7030003590 7030003560 7030003560 7030003560 7030003560 7030003560 7030003560 7030003560 7030003520 7030003520 7030003520 7030003440 7010003871 7030003440 7030003600 7030007110 7030007110 7030003640 7030003640 7030003440 7030003500 7030003500 7030003480 7030003640 7030003360 7030003800 7030003680 7030003720 7030003680 7030003800 7030003680 7030003720 7030003680 7030003800 7030003560 7030003560 7030003560 7030003560 7030003520 7030003520 7030003520 7030003520 7030003520 7030003680 7030003680 7030003840 7030003600 7030003600 7030003680 7030003440 7030003440 7030003200 7030003200 7030003390 7030003480 7030003340 7030003800 7030003680 7030003720 7030003680 7030003800 7030003680 7030003720 7030003680 7030003640 7030003420 7030003560 7030003450 7030003480 7030003420 7030003560 7030003520 S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR

DESCRIPTION
ERJ3GEYJ 183 V (18 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 183 V (18 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 183 V (18 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 472 V (4.7 k) ERJ3GEYJ 472 V (4.7 k) ERJ3GEYJ 472 V (4.7 k) ERJ3GEYJ 102 V (1 k) PSD1/4 2.2 ERJ3GEYJ 102 V (1 k) ERJ3GEYJ 223 V (22 k) MCR18EZHJ 100 (101) MCR18EZHJ 100 (101) ERJ3GEYJ 473 V (47 k) ERJ3GEYJ 473 V (47 k) ERJ3GEYJ 102 V (1 k) ERJ3GEYJ 332 V (3.3 k) ERJ3GEYJ 332 V (3.3 k) ERJ3GEYJ 222 V (2.2 k) ERJ3GEYJ 473 V (47 k) ERJ3GEYJ 221 V (220 ) ERJ3GEYJ 105 V (1 M) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 224 V (220 k) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 105 V (1 M) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 224 V (220 k) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 105 V (1 M) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 472 V (4.7 k) ERJ3GEYJ 472 V (4.7 k) ERJ3GEYJ 472 V (4.7 k) ERJ3GEYJ 472 V (4.7 k) ERJ3GEYJ 472 V (4.7 k) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 225 V (2.2 M) ERJ3GEYJ 223 V (22 k) ERJ3GEYJ 223 V (22 k) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 102 V (1 k) ERJ3GEYJ 102 V (1 k) ERJ3GEYJ 100 V (10 ) ERJ3GEYJ 100 V (10 ) ERJ3GEYJ 391 V (390 ) ERJ3GEYJ 222 V (2.2 k) ERJ3GEYJ 151 V (150 ) ERJ3GEYJ 105 V (1 M) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 224 V (220 k) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 105 V (1 M) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 224 V (220 k) ERJ3GEYJ 104 V (100 k) ERJ3GEYJ 473 V (47 k) ERJ3GEYJ 681 V (680 ) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 122 V (1.2 k) ERJ3GEYJ 222 V (2.2 k) ERJ3GEYJ 681 V (680 ) ERJ3GEYJ 103 V (10 k) ERJ3GEYJ 472 V (4.7 k)

W1 W2

8900006040 CABLE 8900006250 CABLE

OPC-593 OPC-610

[DISPLAY BOARD]
REF NO.
IC1 IC2 IC3 IC4 IC5 IC6

ORDER NO.
1140008050 1130007960 1130002660 1110004750 1180001080 1140003630 S.IC S.IC S.IC S.IC S.IC S.IC

DESCRIPTION
HD6433832SD47H SED1522F0C (QFP15-100PIN) µPD4030BG-T1 S-80945ALMP-DA9-T2 S-81250PG-PD-T1 X24C01S-2.7T6

Q1 Q2 Q3 Q4 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 Q16

1590002310 1520000460 1530002060 1540000440 1590002370 1590001870 1530002060 1520000380 1590002370 1520000460 1530002060 1590001870 1590002770

S.TRANSISTOR S.TRANSISTOR S.TRANSISTOR S.TRANSISTOR S.TRANSISTOR S.TRANSISTOR S.TRANSISTOR TRANSISTOR S.TRANSISTOR S.TRANSISTOR S.TRANSISTOR S.TRANSISTOR S.FET

DTC114EE TL 2SB1132 T100 R 2SC4081 T107 R 2SD1619-T-TD XP4111 (TX) DTA114EE TL 2SC4081 T107 R 2SB1143 S XP4111 (TX) 2SB1132 T100 R 2SC4081 T107 R DTA114EE TL CPH3404

D1 D2 D3 D5 D6 D7 D9 D10 D11 D12 D13 D14 D15 D16

1750000370 1750000370 1750000370 1790001250 1790001250 1160000140 1790001250 1790001250 1160000060 1790001250 1160000060 1160000140 1160000140 1160000140

S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE S.DIODE

DA221 TL DA221 TL DA221 TL MA2S111-(TX) MA2S111-(TX) DAP222 TL MA2S111-(TX) MA2S111-(TX) DAN202U T107 MA2S111-(TX) DAN202U T107 DAP222 TL DAP222 TL DAP222 TL

X1

6050009660 S.XTAL

MA-406 (9.8304 MHz)

L1 L2 L3 L4 L5

6200003260 6200003950 6200003950 6200003950 6200003950

S.COIL S.COIL S.COIL S.COIL S.COIL

NL 322522T-101J HF50ACC 322513-T HF50ACC 322513-T HF50ACC 322513-T HF50ACC 322513-T (150 ) (470 ) (470 ) (1 k) (150 ) (1 k) (1 k) (18 k) (10 k)