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STEREO RECEIVER
RX-485/ RX-485RDS
SERVICE MANUAL
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their selVice personnel. It has been assumed that basic selVice procedures inherent to the industry, and more specifically YAMAHA Products, are already known and understood by the users, and have therefore not been restated.
WARNING:
Failure to follow appropriate selVice and safety procedures when selVicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that any selVice required should be perfonned by an authorized YAMAHA Retailer or the appointed selVice representative. The presentation or sale of this manual to any individual or firm does not constitute authorization, cenification or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
IMPORTANT:
The data provided is believed to be accurate and applicable to the unites) indicated on the cover. The reseach, engineering, and selVice depanments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor's SelVice Division.
WARNING: IMPORTANT:
Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). Tum the unit OFF during disassembly and pan replacement. Recheck all work before you apply power to the unit.
· CONTENTS
TO SERVICE PERSONNEL FRONT PANELS REAR PANELS SPECIFICATIONS INTERNAL VIEW DISASSEMBLY PROCEDURES AMP ADJUSTMENTS TEST MODE TUNER ADJUSTMENTS RX-485 BLOCK DIAGRAM RX-485RDS BLOCK DIAGRAM 1 1 2 2 3 4 5 5 6 6 7 8 11 12 13 14 15 RX-485 ~-COM DATA RX-485RDS ~-COM DATA RX·485 DISPLAY DATA RX·485RDS DISPLAY DATA FRONT END PACK TEST POINT WAVEFORMS PRINTED CIRCUIT BOARD SCHEMATIC DIAGRAM PARTS LIST REMOTE CONTROL TRANSMITTER 16-17 18-19 20 21 22 23 24-33 34-39 40-48 49
YAMAHA
YAMAHA CORPORATION
P.O.Box1,Hamamatsu,Japan
2.95K-223 IQl
® Printed in Japan '94.4
RX-485/RX-485RDS
· TO SERVICE PERSONNEL
1. Critical Components Information. Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only). When service has been completed. it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. · · · Meter impedance should be equivalent to 1500 ohm shunted by 0.15J.lF. Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities. WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT
@]~
INSULATING TABLE
I~~
I
WARNING: CHEMICAL CONTENT NOTICEI
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.
· FRONT PANELS
~
RX·485
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RX·485RDS
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RX-485/RX-485RDS
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RX-485/RX-485RDS
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· REAR PANELS
~
RX-485 U model
~
RX-485 C model
""
+8-Q+
-........
@
2
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RX-485/RX-485RDS
'Y RX-485 R model
+8A
-G+
A
@ @
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~ ~ ~ ~
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Ami.:.....,.....
'Y RX-485 A model
'Y RX485RDS G model
3
RX-485/RX-485RDS
· SPECIFICATIONS
· AUDIO SECTION Minimum RMS Output Power per Channel 8 ohms, 20Hz to 20kHz, 0.04% THO 65W 6 ohms, 20Hz to 20kHz, 0.06% THO U, C, R models 70W Dynamic Power per Channel (IHF) 8/6/4/2 ohms 95/115/1351150W DIN Standard Output Power per Channel (G model only) 85W 4 ohms, 1kHz, 0.7% THO IEC Power (G model only) 1kHz, 0.04% THO, 8 ohms 75W Power BandWidth 1OHz to 50kHz 8 ohms, 32.5W, 0.08% THO Damping Factor 80 or more 8 ohms, 20Hz to 20kHz Maximum Power (EIAJ) (R model only) 8 ohms, 1kHz, 10%THO 95W Input Sensitivity/Impedance 2.5mV/47k-ohms PHONO MM CO etc 150mV/47k-ohms Maximum Input Signal Level (1 kHz, 0.04% THO) PHONO MM 90mV Output Level/Impedance REC OUT 150mV/600 ohms Headphone Jack Rated Output/Impedance 0.04% THO, RL=8 ohms 0.46V/390 ohms Frequency Response (20Hz to 20kHz) CO etc 0±0.5dB RIAA Equalization Deviation (20Hz to 20kHz) PHONO MM 0±0.5dB Total Harmonic Distortion (20Hz to 20kHz) PHONO MM to REC OUT (3V) 0.02% CD etc to SP OUT (32.5W/8 ohms) 0.02% Signal-to-Noise Ratio (IHF-A Network) PHONO MM (5mV Input Shorted) 82dB CD etc (Shorted) 105dB 100IlV Residual Noise (IHF-A Network) Channel Separation (1 kHz,Vol. -30dB) PHONO MM (Input Shorted) 60dB CD etc (input 5.1 k-ohms Terminated) 60dB Tone Control Characteristics BASS : Boost/cut ±10dB (50Hz) Turnover Frequency 350Hz ±1 OdB (20kHz) TREBLE : Boost/cut Turnover Frequency 3.5kHz Continuous Loudness Control -30dB (1 kHz) (Level related equalization) · FM SECTIONTunlng Range Tuning Range U, C models 87.5 to 107.9MHz A, G models 87.5 to 108.0MHz R model 87.5 to 107.9/87.5 to 108.0MHz SOdB Quieting Sensitivity (IHF, 75 ohms) Except G model 1.551lV (15.1 dBf) Mono 211lV (37.7dBf) Stereo Usable Sensitivity (75 ohms) (30dB SIN Quieting, 1kHz, 100% mod.) Except G model 0.8IlV (9.3dBf) DIN, Mono (S/N 26dB) G model 0.9IlV OIN, Stereo (S/N 46dB) G model 241lV Image Response Ratio 45dB ExceptG mod~ G model 80dB IF Response Ratio 80dB Spurious Response Ratio 70dB AM Suppression Ratio 55dB Capture Ratio 1.5dB Alternate Channel Selectivity Except G model 85dB Selectivity (two signals, 40kHz Dev.) G model 70dB Signal-to-Noise Ratio (IHF) Mono/Stereo 80/75dB ExceptG mod~ (DIN-weighted, 40kHz Oev.) Mono/Stereo G model 74/69dB Harmonic Distortion (1 kHz) Mono/Stereo Except G model 0.1/0.2% Mono/Stereo (40kHz Dev.) G model 0.1/0.2% Frequency Response 0 ± 1.5dB 20Hz to 15kHz Stereo Separation (1 kHz) Except G model 50dB G model (40kHz Dev.) 50dB
· AM SECTION Tuning Range U, C models A, G models R model Usable Sensitivity Selectivity Signal-to-Noise Ratio Image Response Ratio Spurious Response Ratio Harmonic Distortion (400Hz) AUDIO SECTION Output Level/Impedance FM (100% mod., 1kHz) Except G model G model (40kHz Oev.) AM (30% mod., 400Hz) Except G model G model 530 to 1,710kHz 531 to 1,611 kHz 530 to 1,710/531 to 1,611 kHz 100IlV/m 32dB 50dB 40dB 50dB 0.3%
500mV/2.2k-ohms 400mV/2.2k-ohms 150mV/2.2k-ohms 150mV/2.2k-ohms
4
I
RX-486/RX-485RDS
· GENERAL
Power Supply U, C models AC 120V, 60Hz A model : AC 240V, 50Hz G model AC 230V, 50Hz R model AC 11 0/120/220/240V, 60/50Hz Power Consumption R, A, Bmodels 135W C model 250VA, 205W U model 155W AC Outlets U, C, R, G models Switched x 2 100W max A model Switched x 1 100W max .435 x 126 x 299mm Dimensions (W x H x D) (17-1/8" x 4-15/16" x 11-3/4") Weight 7.0 kg (151bs 6 oz.) Accessories .........·............. AM loop antenna x 1 Indoor FM antenna x 1 Remote Control Transmitter x 1 Battery (size "AA", "R06") x 2
.. Specifications subject to change without notice. U C A USA model Canadian model Australian model G European model R ·....... General model
· DIMENSIONS
coCo ...........
!:!!
Units: mm (Inch)
· INTERNAL VIEW
o P. C. B. MAIN (2) o
· · · · · P. C. B. MAIN (1) P. C. B. INPUT P. C. B. TUNER P. C. B. MAIN (3) P. C. B. OPERATION (2) P. C. B. OPERATION (3)
5
RX-486/RX-485RDS
· DISASSEMBLY PROCEDURES
(Remove parts in the order as numbered.)
1. Removal of Top Cover Remove 4 screws (Q)) and 3 screws 2. Removal of Front Panel
a. Remove 5 knobs. b. Remove 6 screws (Q)) in Fig. 1.
Top Cover
3. Removal of Rear Panel
(CV)
in Fig. 1.
Remove 15 screws (®) in Fig. 2.
* The P. C. B. MAIN, INPUT, & TUNER can be removed in this state.
CV
:, ---- -:=-~
>~
=-~~~
-------~Q)
-----.- ?i
-~
Fig. 2
Fig. 1
· AMP ADJUSTMENTS
· Confirmation of Inling current.
After Power is turned on. Confirm that the voltages across R137 (L ch), R138 (R ch) are between 0.1-3mV. If they exceeds 3.1 mV, open (cut off) R131 (L ch) and R132 (R ch), and reconfirm voltage is between 0.1-3mV.
0.1 mV - 3mV (DC)
____ Cut
R137, 138
R131 R132
,
:
FRONT
······
Fig. A
· Checking and Parts Replacement of P.C.B. MAIN (1)
a. b. c. d. e. f. Disconnect the power cord from the AC outlet. Remove 3 screws fixing the Speaker terminal and Heat Sink. Remove 4 screws fixing the Main Unit. Detach 1 connector terminal (CB104) in Fig. A. Place the Main Unit on its side as shown in Fig. B. Operating checks can be taken by shorting between following test points in Fig. A.
Short Point
p.e.B. MAIN (1)
TP101 TP1 03 TP105
~
~
~
TP102 TP104 TP106
Fig. B
6
RX-485/RX-485RDS
· TEST MODE
CAUTION: Before setting to the TEST mode, write down the existing preset memory content of the Tuner in a table as shown below. (This is because setting to the TEST mode will cause the memory content to be as factory set, i.e., all the preset memory by the user will be erased.)
Preset group P1 P2 P3 P4 P5 P6 P7 P8
A
B C 0 E
RX-485
How to start Turn the POWER switch ON while pressing the PHONO, AlBICIDIE keys simultaneously, and the unit enters the TEST mode for the display check. (All display segments light immediately) After that, the DISPLAY mode switches by means of PHONO, CD, TUNER, AUX key. Content of the TEST mode key PHONO key : ALL LIGHTS ON mode CD key : LIGHTS OFF mode TUNER key : 7-segment (figure) display mode (A number "8" appears in the display. Others remain OFF.)
I RX-485RDS
I
How to start Turn the POWER switch ON while pressing the TUNING UP, PRESET UP keys simultaneously, and the unit enters the TEST mode for the display check. (All display segments light immediately) At the same time, the factory preset memory is also restored. After that, the DISPLAY mode switches by means of PHONO, CD, TUNER, AUX key. Content of the TEST mode key PHONO key : ALL LIGHTS ON mode CD key : LIGHTS OFF mode TUNER key : All digit of 7-segment (figure) display mode. (Other remain OFF.)
P~l
t
AUX key
Mode to display only 1 digit of 7 segments (figures) (Others remain OFF.)
B '
P2
BB BBBBBBBB
AUX key : The mode is switched to the NORMAL mode and the TEST mode is cancelled. How to cancel Normal operation is restored when the POWER switch is turned OFF or the AUX key pressed. At the same time, the factory preset memory is also restored.
· Factory preset memory content Preset group P1
87.50MHz 630kHz
: The mode is switched to the NORMAL mode and the TEST mode is cancelled.
How to cancel Normal operation is restored when the POWER switch is turned OFF or the AUX key pressed. At the same time, the factory preset memory is also restored.
· Factory preset memory content
P2
95.10MHz 1080kHz
P3
P4
AlC/D
98.10MHz 101.50MHz 1440kHz 531kHz
B/E
P3
95.1MHz
Preset group
P1
87.5MHz
P4
98.1MHz 530kHz (U, C) 531kHz (R, A)
A/C/E
BID
90.1MHz
Preset group
P5
P6
P7
P8
AlC/D
108.00MHz 88.10MHz 106.10MHz 108.00MHz 1611kHz 900kHz 1350kHz 1404kHz
630kHz
1080kHz
1440kHz
B/E
Preset group
P5
107.9MHz (U, C) 108MHz (R, A) 1710kHz (U, C) 1611 kHz (R, A)
P6
88.1MHz
P7
106.1MHz
P8
107.9MHz (U, C) 108MHz (R, A) 1400kHz (U, C) 1404kHz (R , A)
A/C/E
BID
900kHz
1350kHz
For all the above, AUTO TUNING and AUTO STEREO are selected as the TUNING mode.
7
RX-486/RX-485RDS
· TUNER ADJUSTMENTS
· Measuring Instruments
FM signal generator (FM SG) Stereo signal generator (SSG) AM signal generator (AM SG) Distortion meter (DIST. M) AC voltmeter (ACVM) DC voltmeter (DCVM) Oscilloscope Low pass filter (YLF-15, fc:15kHz) Oscillator
· Dummy antenna
I
r------------------·
100
FM dummy antenna
I
:
FM SG (SOO)
I I I I
4S0: E2
RECEIVER (7S0)
I I I
------------~
E2 (dB)
= E1
(dB) -6 (dB)
FM dummy antenna
I I
r------------------·
I I I
E1
FMSG (7S0)
I
E2
RECEIVER (7S0)
I I
I I.
I I
I .1
E2 (dB)
= E1
(dB)
AM dummy antenna
I
o
I
r------------------·
10KO:
ANT
~-__O_--+--.JW\r____o_-+_ AM ....
:
AMSG (SOO)
L......+---O--.........-----O--~ .... GND
I I I I I I I
------------~
· Test point
P.C.B. TUNER SIGNAL METER ADJ. DISCRIMINATOR BALANCE ADJ. MONAURAL (FRONT) DISTORTION ADJ. (ANTENNA)
r----------------------
RX-485RDS ONLY
>
IC5
I
>
T1 AMANT GND
~
>
IC4
VR2
T2
10 01
PK2 PK1 FRONT END
I VR3
ITP~ ~
RDS SENSITIVITY ADJ.
~ ~
~
FMANT
SEPARATION ADJ.
FRONT
~::(///I
8
I
RX-486/RX-486RDS
FM Adjustment
· Before Adjustment
1) For dB, 1JlV=OdBJl applies.
Example: 60dBJl=1 mV 2) 100% modulation means that the frequency deviation is
3) Install the Matching Transformer and connect FM SG.
4) Set each switch at the following position unless otherwise
specified.
75kHz.
INPUT SELECTOR TUNING MODE TUNER AUTO
· Connection diagram (Measuring Instruments)
1) Discriminator balance adjustment FM ANT FM FM P. C. B. dummy SG GND TUNER antenna 3) Stereo distortion adjustment/separation adjustment
TP1
...---- FM
DCVM TP2
L
R REC OUT
~~mmy ANT P. C. B. antenna GND TUNER
L.-_......l
2) Monaural distortion adjustment
...---... FM ANT FM
dummy antenna GND L P.C. B. TUNER R REC OUT
I
4) Sensitivity Verification
I
dummy antenna
FM
ANT GND
FM
L
TUNER
L...-_---J
P. C. B.
R
REC OUT
I
see page 8 for TP lacations & adjustment points.
Step Adjustment Item
Rough adjustment of discriminator balance
Signal (ANT IN)
FM ANT (750) 98.1MHz 70dBJl MONO 100Hz 100% modulation
1
Reception frequency 98.1MHz * (A-4) (A-3) RDS
Adjustment point
T1 (Front side core)
Test point
Both ends of R25 (Between TP1 and TP2)
Rating
DC OV±100mV
2
Rough adjustment of monaural distortion
Same as Step 1.
98.1MHz
* (A-4)
T1 (Antenna side core) T1 (Front side core) T1 (Antenna side core) T1 (Front side core)
REC OUT L, R
Minimize the distortion.
(A-3) RDS 3 Fine adjustment of discriminator balance Same as Step 1. 98.1MHz
* (A-4)
Both ends of R25 (Between TP1 and TP2) REC OUT L, R
DC OV±50mV
(A-3) RDS
4
Fine adjustment of monaural distortion
Same as Step 1.
98.1MHz
* (A-4)
Minimize the distortion (to 0.25% or less).
(A-3) RDS
5
Verification of discriminator balance
Same as Step 1.
98.1MHz
* (A-4)
Both ends of R25 (Between TP1 and TP2)
DC OV±50mV
(A-3) RDS
* : Execution of MAKER PRESET (Refer to TEST MODE on pages 7.) will facilitate setting reception frequency for adjustment.
9
Step
Adjustment Item Adjustment of frontend 1FT
Signal (ANT IN) FM ANT (750) 98.1MHz 30dBJl MONO 1kHz, 100% modulation
Reception frequency 98.1MHz * (A-4) (A-3) RDS
Adjustment point Front end 1FT Test point Pin 16 of IC1
Rating Adjust so that the DC voltage is maximum. CAUTION: Over-adjustment of the 1FT core will reduce the sensitivity. Maximum ±90°
6
7
Verification of monaural distortion
FM ANT (750) 98.1MHz 70dBJl MONO 1kHz, 100% modulation
98.1MHz
* (A-4)
REC OUT L, R
0.4% or less
(A-3) RDS
8
Verification of stereo distortion
FM ANT (750) 98.1MHz 70dBJl Stereo 1kHz, 100% modulation L or R
98.1MHz * (A-4) (A-3) RDS o Tuning mode should be AUTO. 88.1MHz
o
REC OUT L, R
1% or less o STEREO indicator should light.
9
Verification of sensitivity
FM ANT (750) 88.1MHz 98.1MHz 106.1 MHz
ANT (750)
Set the tuning mode to MAN'L MONO.
(A-6)
98.1MHz
* (A-4)
SIN should be 30dB at each
frequency of 88.1 MHz, 98.1 MHz, and 106.1 MHz. Check to ensure that the voltage at the ANT terminal is 3dBJl (14.25dBf) or less. VR2 REC OUT L, R With SSG output at L or R, the signal leakage level at the other channel should be minimized. 36dB or more
(A-3) RDS 106.1MHz o (A-7)
10
Adjustment of Separation
FM ANT (750) 98.1MHz 70dBJl Stereo Lor R 1kHz, 100% modulation
98.1MHz
* (A-4)
(A-3) RDS
11
Adjustment of Signal meter
FM ANT (750) 98.1MHz 45dBJl MONO 1kHz 30% modulation -1 OdBJl or less
98.1MHz
* (A-4)
VR1
Adjust so that all signal meters light.
(A-3) RDS
Check to ensure that signal meters turn OFF. 98.1MHz
o
12
Verification of auto tuning
FM ANT (750) 98.1MHz 23dBJl Stereo Lor R 1kHz, 30% modulation
Automatic reception should be available when the tuning key is moved UP and DOWN.
o
The stereo indicator should light. Audio muting should be applied during tuning.
o
* : Execution of MAKER PRESET (Refer to TEST MODE on pages 7.) will facilitate setting reception frequency for adjustment.
10
/
~
RX-485/RX-485RDS
AM Adjustment (This should be done after FM adjustment.) · Connection Diagram (Measuring instruments)
1) Adjustment of sensitivity
1FT
age
o
,.."
AM loop antenna
f---
AMANT AMSG P.C.B. TUNER GNO
AMSG
r--
~_'
R
L
I
I I
I
ACVM OIS1. M
RECOUT
~
Li
d
Oscilloscope
I I I
Rating Audio output should be maximized.
See page 8 for TP lacations & adjustment points.
Step Adjustment Item Adjustment of sensitivity (1440Hz) Reception Signal (ANT IN) AMANT 1440kHz 50dBJl 400Hz, 30% modulation frequency 1440kHz * (B-3) Adjustment point T2 Test point REC OUT
1
o
ach z,
2
Verification of sensitivity (630kHz)
AMANT 630kHz 50dBJl 400Hz 30% modulation
630kHz
*
T2
REC OUT
Audio output should be maximized. Repeat the Step 1 and 2.
(B-1)
o ~
is
. R,
3
Verification of sensitivity
AMANT 630kHz 1080kHz 1440kHz 30% modulation
630kHz
*
AMANT
Distortion should be 10% or less at each frequency. Check to ensure that the voltage at the ANT terminal is 54dBJl or less.
e
be
(B-1)
1080kHz * (B-2) 1440kHz
*
(B-3) Auto reception should be available when the tuning key is moved UP and DOWN.
e-
4
Verification of auto tuning
AMANT 60dBJl
al
m
UP Id
RDS Adjustment (RX-485RDS ONLV) (This should be done after FM and AM adjustment.)
See page 8 for TP lacations & adjustment points.
Step Adjustment Item Adjustment of RDS sensitivity Reception Signal (ANT IN) frequency Receive RDS station. Adjustment point VR3 Test point Between TP3 and GND. Rating Adjust so that the AC voltage is maximum. maximum
ap-
1
Y2fJ2AI
2
Verification of auto PS (Program service name) Confirm that the display automatically turn into the PS when tuned again.
10
11
RX-485/RX-485RDS
· RX-485 BLOCK DIAGRAM
CERAMIC FILTER
Fi 1
AM/FM IF DET. IC1 LA1266
MPX I C3 LA340
FMANT
GND
AM ANT
LM.:.:..U=--T...::EO---_-+
I Csos
®
oI
06
o '"
t----'-c.=.:..:..:+-o.... ICSOS@)
MONO
STOP SIGNAL DATA BUS
a
CONTROL
STRO
INPUT SELECTOR (4052)
TAPE 2 MONITOR (4053)
TAPE 1 MONITOR (4053)
VOLUME VR405
PHONO
IC503 TUNER L. R
I
I I I I I
I
'-;
REMO E SENSOR
CD AUX
r--
~
TAPE 2
L
REC PB
!
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!
9 II I I I
I I
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1:,
2 10 MOTOR DRIVE IC506 PURE DIRECT SW401
®
REC TAPE 1 L PB
r--
I
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I
STRQ (STR) MONO (MON) TO:TUNER MUTE (MUT) PORT EXPANDER IC505 BU2040
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(JJ (JJ
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(JJ (JJ
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12
13
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MPX
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A3401
T5 L.P. F
L] TO INPUT SEL.
IC502
R
®®
ee
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0
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0125,126
REMOTE CONTROL PHONO
SYSTEM CONTROL IC301 LA65204 POW
S 12 1---4-.......::...:..:::.......:.(+_1..=2.:.S:....)
L.---'
~r: - - 0123'124'H
L !'~~...J
RONLY
t]Tl 0 1
11 '-----......-+-..j
Dl13 '--___
27
52 31 - 50
0120 Dl07
0122
t..=..-=J
D
REMOTE SENSOR
(')
0
0
i RY102
FI (F2)
I
-15
..,
I
I 0101,103,105,107, 109,111,129A,129C
I
I
I
+5 SPEAKERS SW10l
I
RY10l POWER AMP
A
l
SPEAKERS
B
0102,104,106,108,110, 112, 130A, 130C
J
r-nPHONES
13
· RX-485RDS BLOCK DIAGRAM
CERAMIC FILTER Fi 1
AM/FM IF DET. IC1 LA1266
L.-"'T'""..,.........
MP
I C3
LA3~
.·.
FM ANT
GND
AM ANT
LM~U~T~E~__-+~IC505 6
t-";.,;;.;,;.""-!-.... IC505
N
o
STOP SIGNAL DATA BUS Ii CONTROL
r..::....:.....c..:..:::....-
---..
---'S:<..,T'-"R""O_ IC 505 ~
INPUT SELECTOR (4052)
TAPE 2 MONITOR (4053)
TAPE 1 MONITOR (4053)
VOLUME VR405
PHONO
IC503 TUNER L, R
I
I
R SE.
I
I I I I
GO AUX
r--
~
9 II
I
TAPE 2
L
REG PB REG PB
I
9 II
I I I
I
I
I
I
r--
I
I I
I I
I I I I
® ~
2 10
MOTOR DRIVE IC506 PURE DIRECT
TAPE 1
L
~~
/I
I
8~
10
v
SW401
STRQ (STR) MONO (MON) TO:TUNER MUTE (MUT) PORT EXPANDER IC505 BU2040
en en
« III
III W
~
~
a:
0
0 ::J
en en w z
()
w
:3 «
III
Z
-J
14
RX-485/RX-485RDS
MPX I C3 lA3401
T5
l.P. F l] TO INPUT SEl.
R®®..---------------<
IC502
VR3 RDS SENSITIVITY
REMOTE CONTROL PHONO
S12 (+12S)
0120 D107
0122
I;
REMOTE SENSOR
Icsos0
o
('")
a
I
I
I
0101.103,105,107, 109, 111, 129A, 129C
+5
I I
I
I
RY101 POWER AMP
SPEAKERS SW101
A
SPEAKERS
B
l
J
0102,104,106,108,110, 112, 130A, 130C
u
mPHONES
...J
lD
<: <:
z
14
15
RX-485/RX-485RDS
· RX-485 Jl-COM DATA
IC301 : LC65204A 4 bit Il-COM
PAO/ADO PA1/AD1 PA2/AD2 PA3/AD3/INT1 4 PBO/AD4/DACO 5 PB1/AD5/DAC1 PB31AD7/START
6
1
p
VP
PPO P03 P02 P01 POO PN3 PN2 PN1 PNO
PB2/AD6/S0R 7
AV+ AVVSS
11
OSC1 OSC2
PM3 PM2
VDD
RES X1
X2 TEST PFO/SI PF1/S0
LC65204A
PM1 PMO PL3 PL2
PF2/SCK 21 PF3/1NTO PCO PC1 PC2 PC3
27
PL1 PLO PK3 PK2 PK1 PKO PD3 PD2 PD1 PDO
PAO/ADO PAI/ADl PA2/AD2 _ PAJ/AD3/INTI PBO/AD4/0Aml PB 1/AD5/0ACi PB2IAD6 /SOR PB3/AD7/START
110 BUS
PD 0
I
PD 3 PFO lSI PF I ISO PF 2 ISCK PF 3 IINTO
r--""O-"'..........---,._.r.
OSC 1
<--
OSC2 Xl -J""~-v X2
PA3/AD3/INTl 0 - - - - - - - - - - , PF3/INTO 0 - - - - - - - - - ,
--<>
TEST
- - 0 RES
- - 0 Voo - - 0 Vss
PMO-3
PNO-3
POO-3
PPO
--oVp
16
17
/
Pin No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
Port
PAO PA1 PA2 PA3 PBO PB1 PB2 PB3 AV+ AVVSS OSC1 OSC2 VDD RES X1 X2 TEST PFO PF1 PF2 PF3 PCO PC1 PC2 PC3
PD~
At Reset
H H H H H H H H Protection input
Function
Model & Market detect Tuner market input A1 Tuner market input A2 Power down detect Signal meter input Key input 1 Key input 2 +5V GND GND 4MHz (clock) 4MHz (clock) +5V RESET VDD OPEN GND (485G : H, 385 not G : L)
Logic
"----L :ON
L: down
H H H H L L L L L L L L L L L L L L L L L L L L L L L L L L L L L
Tuner STO in Tuner STSG in Tuner ST in Remote control in CE for LM7000 CL for LM7000 DA for LM7000 Mute out Power on relay out Phono remote out Port Expander (Clock) Port Expander (Data) FL segment 1 FL segment 2 FL segment 3 FL segment 4 FL segment 5 FL segment 6 FL segment 7 FL segment 8 FL segment 9 FL segment 10 FL segment 11 FL segment 12 FL digit 1 FL digit 2 FL digit 3 FL digit 4 FL digit 5 FL digit 6 FL digit 7 FL digit 8 STBY LED out FL, Power supply H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON H:ON
PD1 PD2 PD3 PKO PK1 PK2 PK3 PLO PL1 PL2 PL3 PMO PM1 PM2 PM3 PNO PN1 PN2 PN3 POO P01 P02 P03 PPO Vp
48
49 50 51 52
· AID INPUT PORT
No.
7 8
Name
KEY 1 KEY2
KEY
0 MEMO POWER 1 EDIT TAPE 2 2 MODE TAPE 1 3 FM/AM AUX 4 TU DOWN TUNER 5 TU UP CD
6
PS DOWN PHONO
7 PS UP
8 A-E
-
-
17
· RX-485RDS Jl-COM DATA
IC301 : LC866024B-5512
8 bit /l-COM
P10/S00 P11/S10/SBO P121SCKO P13/S01 P14/S11/SB1 P15/SCK1 P16/BUZ P17/PWM TEST1 RES XT1 XT2 VSS CF1 CF2
o
P07 P06 P05 P04 P03 P02 P01 POO S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 S16 VP
VDD
P80/ANO P81/AN1 P82/AN2 P83/AN3 P70/INTO P71/INT1 P721INT21T0IN P73/INT31T01N
VDDVPP
S151T15 S141T14 S131T13 S121T12 S111T11 S101T10 S91T9 S81T8
SOITO
S11T1 S21T2 S31T3 S41T4 S51T5 S61T6 S71T7
Pin No.
1 2 3 4 5 6 7
Port
P10 P11 P12 P13 P14 P15 P16 P17 TEST RES XT1 XT2 VSS CF1 CF2 VDD P80
Name
CE7000 DATA7000 ClK7000 PHONO REM RDS DATA RDS ClK RDS RESET RDSID
I/O
Function
CE for lM7000 DATA for lM7000 CLOCK for lM7000 Player remote control (PLAY/CUT) RDS DATA (lC7073) RDS CLOCK (LC7073) RDS RESET (LC7073) RDS ID (lA2232) N.C. Reset VCC N.C. GND
0 0 0 0
I
I
0
I
8 9
10 11 12 13 14 15 16 17
RESET XT1
I
VSS OF1 OF2 VDD TUKIN 1
I
] Clock (12MHz)
+SV Tuner key in 1 (ND)
18
(
RX-485/RX-485RDS
Pin No. 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
Port P81 P82 P83 P70 P71 P72 P73 SO S1 82 83 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 814 S15 VDD VPP VP S16 S17 S18 S19 S20 S21 S22 S23 S24 825 826 S27 S28 S29 POO P01 P02 P03 P04 P05 P06 P07
Name TUKIN 2 AMP KIN METER POWER DOWN RDS START INITIAL REMCON MODEL V3 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G P1 P2 P3 VDD VPP VP P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 STANBY POWER MUTE DATA2040 CLK 2040 PRT IN STEREO 81G OUT SIG IN
1/0 I I I I
I
Function Tuner key in 2 (AID) Amp key in (AID) Tuner meter input (AID) Power down detect RDS SATRT (LC7073) Model detect (SO, S1) Remote control Model select (P72) STBY LED select FL digit 11 FL digit 10 FL digit 9 FL digit 8 FL digit 7 FL digit 6 FL digit 5 FL digit 4 FL digit 3 FL digit 2 FL digit 1 FL segment 1 FL segment 2 FL segment 3 VCC -VEE FL segment 4 FL segment 5 FL segment 6 FL segment 7 FL segment 8 FL segment 9 FL segment 10 FL segment 11 FL segment 12 FL segment 13 FL segment 14 FL segment 15 FL segment 16 STBY LED OUT Power on relay out Mute DATA for BU2040 CLOCK for BU2040 Protection STEREO (TUNER) STOP OUT (TUNER) IF Count (TUNER)
I
I
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
I I
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
I I I I
· AID INPUT PORT
No. 17 18 19 Name TUKIN 1 TUKIN 2 AMPIN
KEY
0 MEMORY
PRESET DOWN
1 EDIT
PRESET UP
2 MODE AlB/C/D/E CD
3 FM/AM AF TUNER
4
TUNING DOWN FREQ/PSI PTY
5
TUNING UP
6
ENTER TAPE 2
SHIFT TAPE 1
POWER
PHONO
LD
18
19
RX-486/RX-486RDS
· RX-485 DISPLAY DATA (VQ915100)
· V301 : 8·MT·79GK
·
PATTERN AREA
CD
· PIN CONNECTION 1 PIN NO.
.pt
2
3
4
5
6
7
8
9
10 11
12 13 14 15 16 17 18 19 20 21
CONNECTION F1 PIN NO.
F1 NP NP P1
P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 NX NX NX NX NX 32 33 34 35 36 37 38 39 40 41
22 23 24 25 26 27 28 29 30 31
CONNECTION NX NX NX NX NC NC NC NC 1G 2G 3G 4G 5G 6G 7G 8G NP NP F2 F2 NOTE 1) F1, F2 2) NP 3) NC
· GRID ASSIGNMENT
BG 7G
6G
5G 4G 3G
Filament No pin No connection
4) NX No extend pin 5) DL Datum Line 6) 1G-11G .. Grid
2G
lG
SILIEIEIP
COOO 000000 0000000
I
ocooooooo
0000000000 0000000000 00000000000 000000000000 0000000000000 00000000000000
00000000
~~yyyy~yy~
81 82 83 84 85 86 87 88 89 810
( lG)
· ANODE CONNECTION
~
P1 P2 P3 P4 P5 P6 P7 P8
8G a
b
7G a
b
6G
a
b
5G
a
b
4G a
b
3G
a
b
2G
a
b
1G
STIEREO
p
c d e
f
c d e
f
c d e
f
c d e
f
c d e
f
c d e
f
c d e
f
81 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10
P:
:p
9
j
9
9
j
~M
9
j
AUTO TUNING
9
h
k
9
h
0
9
TAPE MONITOR
kHz
P9 PJRESIET m P10 P11 P P12 MEMORY
1 2
M
m
P
SLEEP
m
n
m
n
n
P
-
fM
r
-
MHz
20
21
r
· RX-485RDS DISPLAY DATA (VR029500)
· V301 : 11-BT-120GK
r--.
PATTERN AREA
CD
· PIN CONNECTION
PIN NO. CONNECTION PIN NO. 1 F1 22 2 F1 23 3 4 5 P1 26 6 P2 27 7 P3 28 8 P4 29 9 P5 30 10 P6 31 5G 11 P7 32 6G 12 P8 33 7G 13 14 15
@
16
17
18
19
20
21
NP NP 24 25
P9 P10 P11 P12 P13 P14 P15 P16 NX 34 8G 35 36 37 38 39 40 F2 41 F2
~
CONNECTION NX NX NX NX NX 1G 2G NOTE 1) F1, F2 2) NP 3) NC
3G 4G
9G 10G 11G NP NP
Filament No pin No connection
4) NX No extend pin 5) DL Datum Line 6) 1G-11G .. Grid
7) Angle of visual field ....... 31·min. on upper side ....... 24·min. on lower side
· GRID ASSIGNMENT
1 IG
10G
9G
8G
7G
6G
5G
4G
3G
2G
1G
020100
SIL/EIEIP
~='IIIIII
'~J1b "§£U' tiff'
d
'5.
~u
b
I(Q)
~~~=l
~ ~ g g g ~ ~ ~.~ :~ ~. ~ltl!l~U
~(Q)
S1
~~g~II~~1
82
.
~:~(,
~ (Q)(Q)I
d
( lG)
( l1G)
(9G~2G)
· ANODE CONNECTION
~
P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16
11G a
10G a
9G a
8G a
7G a
6G a
5G a
4G a
3G a
2G a
1G
STERlEO
b
c d e f
b
c d e f
b
c d e f
b
c d e f
b
c d e f
b
c d e f
b
c d e f
b
c d e f
b
c d e f
b
c d e f
S1 81 82 83 84
9
9
9
h
j
9
h
j
9
h j k
m n
9
h
j
9
h j k
m n
9
h
j
9
h j k
m
9
h
j
j
rENTIER
TAPE MONITOR
kHz
m
k
m n
k
m n
k
m
k
m n
k
m n
1
2
-
p
n
n
MHz
SLEEP
AUTO TUNING
MIEMORY PRESIET
AM FM
-
P
r t u
P
r \ t u
P
r t u
P
r t u
P
r t u
P
r t u
P
r t u
P
r t u
.,.--,
-
-
-
21
· FRONT END PACK
· Except G model PK1 : ENV-17298GI (VR242200)
C3
R3 TR2
T1
L2
ANT
C8
ANT
R5
RI
I
RIO
r
R9
Clo
~R~~f
lCIl R8 CI2
IFOUT
GND
vee
VT
C20
CI7
;I( ~ t----+--~-__t I------+-_----if-f
1----0
FOUT
L5
TR3
· G model only PK1 : ENV-17297GI (VQ987600)
C3
R4
*
Cl0
C R.
L3
ANTl
L1
AGC
I W
CII C9 L6
:::~::r
C25rl;
RI3 RII C26
IF OUT GND
VCC VT
r
C21
R20
C22
r r
C23
C24
r
r
F OUT
C'h
22
RX-485/RX-485RDS
· TEST POINT WAVEFORMS
Point CD (Pin 1 of IC2) V: 2V/div H : 50nsec/div DC range 1: 1 probe Point ® CH 1: Pin 15 of IC301 [ CH 2 : Collector of 0303 V: 2V/div CH1 V: 5V/div CH2 H : 0.5sec/div DC range 1: 1 probe
CH 1 ~
J
/ ---"
"if/
"
//
' ...."-..,./
""\
/~ '\
\
~~
1"'-.-./"
~ ..-/
/
DI
"" 2lJ
S A~ PLE
58 ns
CH
2~
:71
/
/
/~
"
\\...
SA~ PLE
Point ® (Pin 24 of IC4) V: 2V/div H : 1llsec/div DC range 1: 1 probe
2lJ
5lJ
With the POWE R switch turned ON, connect the power cord to the AC outlet.
,
8.
Disconnect the power cord from the AC outlet. · This waveform is not available by pushing the power switch ON and OFF.
,
::>s
~
171
P'
"'---
r 1\ 1/
/
'"
l/
1'\
\
l/
~
\l/
-~
Point ® (Pin 14 of IC301) V: 2V/div H : 50nsec/div DC range 1: 1 probe
SA~ PLE
1.u p
2lJ
,
.'
\
,
Point ® (Pin 1 of IC5) V: 2V/div H : O. 1llsec/div DC range 1: 1 probe
kJ/
r-.-.
!
bl\ ,
PI
/"'\.
/
\
!
\
l/
\
/
/
\
./r...
\
\
/'.
2lJ
S A HP LEI
5 81n s
-fi
\.
;
\
/
I
2lJ
SM PLE
8.
.uS
Point (j) CH 1 : Pin 10 of IC301 [ CH 2 : Collector of 0302 V: 2V/div CH1 V: 5V/div CH2 H : 0.5sec/div DC range 1: 1 probe
CH 1 ~
J
Point ® (Pin 12 of IC301) V: 2V/div H : 0.1Ilsec/div DC range 1: 1 probe
""
l
/1\\... /- I -"'
/
\
7
\ 1/
0;;;;:;;
1 ,
v'
\1
\'i
CH
2~ [;i'f
I
\ \....
h.\ 1/
~
\.1
.I
7
;"
=
2lJ
,
5lJ
SA~ PLE
With the POWER switch turned ON, connect the power cord to the AC outlet.
Disconnect the power cord from the AC outlet. · This waveform is not available by pushing the power switch ON and OFF.
,
8. ps
2lJ
SAt"jPLEI
8.lI.us
22
23
A
RX-485/RX-485RDS
B
c
o
· PRINTED CIRCUIT BOARD (Foil side)
1
I PoCoBo MAIN ( 1 )
TO:POWER TRANSFORMER
J:
l:..
~:=I---=:=----..,.==-----1
1
~-~
TO:MAIN (2) .....~2
FROM:OPERATIO
+
a:
UJ
~
C/)
g
0-
UJ
~
C/)
®
+
3
4
· 0107 and 0108 are transistors for temperature correction. Apply silicone grease to the contact surface with the heat sink.
PoCoBo MAIN ( 3 )
PHONES SPEAKERS
A
ON OFF ·
B
ON OFF
5
TO:MAIN (1) .....-.=
24
25
6
]
F
G
L
p.e.B. INPUT
I
IERATION ( 1 )
RS
B
ON OFF
25
I
A
B
c
D
· PRINTED CIRCUIT BOARD (Foil side)
1
CD to ® : TEST POINT WAVEFORMS (See page 23)
SEPARATION ADJ.
2
3
4
5
---TO: OPEl
26
6
_ _ _ _ _ _ _ _ _E
-'--
F
G
H _~ _
RX-485/RX-485RDS
· RX-485 I P.C.B. TUNER
I
750
UNBAL.
FM ANT
11------'1
GND
I
AM ANT
I
FM / AM
50kHz / 9kHz 100kHz / 10kHz
I
FREQUENCY STEP
I Ronly )
I
RX-485 RDS
P.C.B. TUNER
750
UNBAL.
FM ANT
GND
I
AM ANT
I
MONAURAL DISTORTION ADJ. (ANTENNA)
~~~--l~TO
RATION ( 1 )
SIGNAL METER ADJ.
27
A
RX-485/RX-485RDS
B
c
D
· PRINTED CIRCUIT BOARD (Foil side)
1
® to ® : TEST POINT WAVEFORMS (See page 23)
· RX-485 I P.C.B. OPERATION (
TUNING MEMORY EDIT MODE FM / AM
2
FROM : MAIN ( 1 )
3
4
· RX-485 I P.C.B. OPERATION ( 4)
· RX-485 I p.e.B. OPERATION ( 3 )
1 .........- - -. . .
5
VOLUME
28
29
6
J
E
F
G
L.-
H
------lI_
~ATION ( 1 )
· RX-485 I P.C.B. OPERATION ( 2 )
o
-4
.......
» -.z
3:
UDNESS
BALANCE
TREBLE
BASS
29
A
B
c
o
· PRINTED CIRCUIT BOARD (Foil side)
1
® to (j) : TEST POINT WAVEFORMS (See page 23)
· RX-485 RDS
I
PoCoBo OPERA'
2
FROM: M
3
I
· RX-485 RDS
4
· RX-485 RDS
I
I
p.e.B. OPERATION ( 3 )
PoCoBo OPERATIQN ( 4) I
r-----....
5
VOLUME
30
6
E
F
G
RX-485/RX-485RDS
H
J'---_
FROM: INPUT
· RX-485 RDS I p.e.B. OPERATION ( 2 )
o
... z
-I
.....
»
3:
31
A
RX-485/RX-485RDS
B
c
o
· PRINTED CIRCUIT BOARD (Foil side)
1
C models I PoCoBo MAIN ( 2 )
e u,
2
,... z
~
ct
o
3
~
0:
u..
G model I PoCoBo MAIN ( 2 )
4
e
eR
PJ
TO:POWER .......~TRANSFORMER ~~~,,~
,... z
5
~
ct
o
AC OUTLETS
~
0:
u..
32
33
6
JL---
E
--.l..
~F
G
_
H _ _ _ _ _ _ _ _---1_ _
z
T ""
TO:AC OUTLET
· R model [P.C.B. MAIN ( 2 )
'AI 106
GY
·.R model I P.C.B. MAIN ( 4 )
T ""
Z ~
!l!:i
:11191
~
-
~ ----,--------.----'--~ o
II:
u..
1-2/5-6 2-3/6-7
y~
_ _..-J
110V 120V
3-4/7-8 4-5/8-1
Will
BR
TO:POWER TRANSFORMER
33
...z
3
08 I-
AM
ADJ. _______
SENSITIVITY
4
5
6
L. P. F.
PLL
L
PK1 : ENV-17298GI (VR242200)
_
C3
7
R3
L2
ANT ANT
RI
IFOUT
GND
vee
VT
RIO
8
C20 CI7
R12
*.....-. t---+--..,.---I It---+-.......--+£
L5
......I\fr--+----i t---o F 0 UT
CI2
TR3
A
B
c
D
· SCHEMATIC DIAGRAM (RX-485 TUNER)
1
CAPACITOR REMARKS PARTS NAME !-,-N;,.::O--=:-MA:. ;. :R. :.;.K:. .r-=-E.=.LE=-C,,"-,T,-,-R;,.: O-=.L-,-YT.:. . :I=-=C,----=C:.:. ;A-,-P-,-AC=.. ;I:. . ;T-"D..:.;.R ---; ® TANTALUM CAPACITOR NO MARK CERAMIC CAPACITOR @ CERAMIC TUBULAR CAPACITOR @ POLYESTER FILM CAPACITOR I---::O~-+~P O~L::....:Y~S...:...T..:....:YR-':.::E:..:..:N.=:E-,F,--,I,-=L,-,-,H~C ~AP-::.A,-"C~I~TO~R':""-_--l H CD IHCA CAPACITOR ® POL YPROPYLENE FILM CAPACITOR · SEMI CONDUCTIVE CERAMIC CAPACITOR RESISTOR REMARKS PARTS NAME (P=5) NO MARK CARBON FILM RESISTOR (P=10) CARBON FILM RESISTOR IZl !::, METAL OXIDE FILM RESISTOR METAL FILM RESISTOR P:. ~ METAL PLATE RESISTOR FIRE PROOF CARBON FILM RESISTOR ~ CEMENT MOLDED RESISTOR 0 ~ SEMI VARIABLE RESIST OR CHIP RESISTOR
a
('J ) .. , .. (U)··· .. (C) .. ·.. (A) .... · (G) .. ···
(6) .... · (R) .. ·.. (P) .. ···
NO =
·
2
I----------------------=~~------D~=~~
DISTORTION ADJ. (ANTENNA) BALANCE ADJ. (FRONT)
u
75Q
22 uH
AM FM
87.5MHz 98.IMHz I08MHz 1.7V 4.2V 8.4V
FM
AM
3
530KHz 1080KHz ( 1710KHz
4.9V 7.8V
IAV)
AM SENSITIVITY ADJ.
4
l"1
u,;~
.".
0
6
c.J
~
""
0
:I:
(\J
%
...J~
~
.".0
5
'"
6
L. P. F.
PLL
F
I
-I
nc2~--l
'I
1
155133 155176
.. sWld
S~
I
'I
/1OlO I;::::
R44
lOOK
~r .
/STSIG ~ CE7DOO
elK DATA
TO INPUT
~
c::;
P36
)
~
OlO 06 47K
. (0.6)
4
06
MmR~
+12V I;::::
STOUT STAll
c::: h
I:::::
B
I:::::
o )0
C333D I A/S/T I
j
I
52418
!i!
~
a:
SIGNAL
M~TER
ADJ.
REGULATOR
-~
- - -- - - - - -- ---- - - - -- - - - - - -- - --- - - - - - '
I
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SA1317
2$~30~,S'B · S.
~~g~~J~B. C)
lSSl33 HZS6C2TD
LM7000N
L.A3401
LA1266
E~
C B
~
CB
g
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34
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4220
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7
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A
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I OPERATION(2) I JI -------------
2.2K
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RESISTOR PARTS NAME REMARKS Ip-51 NO MARK CARBON FILM RESISTOR Ip=101 CARBON FILM RESISTOR 1ZI METAL OXIDE FILM RESISTOR !::l METAL FILM RESISTOR A METAL PLATE RESISTOR 181 FIRE PROOF CARBON FILM RESISTOR IdiII CEMENT MOLDED RESISTOR 0 SEMI VARIABLE RESISTOR ~ CHIP RESISTOR iii
CAPACITOR PARTS NAME REMARKS NO MARK ELECTROLYTIC CAPACITOR @ TANTALUM CAPAC I TOR NO MARK CERAMIC CAPACITOR @ CERAMIC TUBULAR CAPACITOR @ POLYESTER FILM CAPACITOR POLYSTYRENE FILM CAPACITOR 0 MICA CAPACITOR
a
H
·
Intercnangeable Parts at Manufacture-Stage Mark Reference Parts Number
H
0303· 304.306. 30B. 311
Parts Name
H55104 ISSI33 155176
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IOPERA TION ( 1) I
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l\.R159 I 3 0
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· All voltage are measured with a 10MOlDC electric volt meter. · Components having special characteristics are marked ~ and must be replaced with parts having specifications equal to those originally installed. · Schematic diagram is subject to change without notice.
38
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I OPERATION(2) I
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RESISTOR REMARKS PARTS NAME Ip=5] NO MARK CARBON FILM RESISTOR l2] CARBON FILM RESISTOR I P-l 0