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ORDER NO. MD0101010C3
CD Stereo System
SA-AK52
Colour (S)... Silver Type Area (GC)...Asia, Latin America, Africa and Middle Near East TAPE SECTION : AR2 MECHANISM SERIES CD SECTION : RAE0152Z-3 TRAVERSE DECK SERIES
Specifications
s AMPLIFIER SECTION PMPO RMS power output THD 10%, both channels driven 80 Hz, both channel driven (Low channel) 1 kHz, both channel driven (High channel) Total Bi-Amp power Input sensitivity AUX MIC Input Impedance AUX MIC s FM TUNER SECTION Frequency range Sensitivity S/N 26 dB Antenna terminal(s) s AM TUNER SECTION Frequency range MW 522 - 1629 kHz (9 kHz steps) 520 - 1630 kHz (10 kHz steps) 87.5 - 108 MHz (50 kHz steps) 2.5 µV (IHF) 2.2 µV 75 (unbalanced) 13 k 680 250 mV 0.7 mV 40 W per channel (6 ) 140 W per channel 100 W per channel (6 ) Sensitivity MW S/N 20 dB (at 999 kHz) SW S/N 20 dB (at 5.3 MHz) s CASSETTE DECK SECTION Track system Heads Record/playback Erasure Motor Recording system Erasing system Tape speed Frequency response (+3 dB, -6 dB at DECK OUT) NORMAL (TYPE I) HIGH (TYPE II) S/N Wow and flutter Fast forward and rewind time 35 Hz - 14 kHz 35 Hz - 14 kHz 50 dB (A weighted) 0.18% (WRMS) Approx. 120 seconds with Solid permalloy head Double gap ferrite head DC servo motor AC bias 100 kHz AC erase 100 kHz 4.8 cm/s 4 track, 2 channel 35.5 µV/m 560 µV/m 2300 W SW 3.200 - 7.350 MHz (0.005 MHz steps) 9.400 - 21.750 MHz (0.005 MHz steps)
© 2001 Matsushita Electronics (S) Pte Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
SA-AK52
C-60 cassette tape s CD SECTION Sampling frequency Decoding Beam source/wave length Number of channels Frequency response Wow and flutter Digital filter D/A converter s GENERAL Power supply Power consumption AC 110 V/127 V/220 V/230-240V, 50/60 Hz 180 W 44.1 kHz 16 bit linear Semiconductor laser/780 nm Stereo 20 Hz - 20 kHz (+1, -2 dB) Below measurable limit 8 fs MASH (1 bit DAC)
Power consumption in standby mode 0.8 W Dimensions (W x H x D) Mass s SYSTEM SC-AK52(GC) Music Center: SA-AK52(GC) Speaker: SB-AK52(GC) Notes: 1. Specifiacations are subject to change without notice. Weight and dimensions are approximate. 2. Total harmonic distortion is measured by the digital spectrum analyzer. 3. The labels "High" and "Low" on the rear of the speakers refer to High frequency and Low frequency. 250 x 332 x 316 mm 9.0 kg
CONTENTS
Page
1 Before Use 2 Before Repair and Adjustment 3 Protection Circuitry 4 Accessories 5 Handling Precautions For Traverse Deck 6 Precaution of Laser Diode 7 Operation Procedures 8 Operation Checks and Main Component Replacement Procedures 9 Self-Diagnostic Function 10 Description of Error Code 8 18 19 3 3 3 3 4 5 6 11 CD Test Mode Function 12 Measurements and Adjustments 13 Illustration of IC's, Transistors and Diodes 14 Terminal Function of ICs 15 Block Diagram 16 Schematic Diagram 17 Printed Circuit Board 18 Wiring Connection Diagram 19 Troubleshooting Guide 20 Parts Location and Replacement Parts List
Page
20 20 24 25 28 34 48 58 59 60
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1 Before Use
Be sure to disconnect the mains cord before adjusting the voltage selector. Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will be used. (If the power supply in your area is 117V or 120V, set to the "127V" position.) Note that this unit will be seriously damaged if this setting is not made correctly. (There is no voltage selector for some countries, the correct voltage is already set.)
2 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C531, C532, C533, C534, C579 through a 10 , 5W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent. Current consumption at AC 110 V, 60 Hz in NO SIGNAL mode should be ~650mA respectively.
3 Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed: · No sound is heard when the power is turned on. · Sound stops during a performance. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are "shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used. If this occurs, follow the procedure outlines below: 1. Turn off the power. 2. Determine the cause of the problem and correct it. 3. Turn on the power once again after one minute. Note: When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
4 Accessories
Remote Control Transmitter
AM Loop antenna
FM indoor antenna
AC mains lead
Power plug adapter
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5 Handling Precautions For Traverse Deck
The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup). q Handling of traverse deck (optical pickup) 1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock. 2. The short land between the No.4 (LD) and No.5 (GND) pins on the flexible board (FFC) is shorted with a solder build-up to prevent damage to the laser diode. To connect to the PC board, be sure to open by removing the solder build-up, and finish the work quickly. 3. Take care not to apply excessive stress to the flexible board (FFC board). 4. Do not turn the variable resistor (laser adjustment). It has already been adjusted. power Caution when Replacing the Traverse Deck : The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to remove the solder from the short point before making connections.
q Grounding for electrostatic breakdown prevention 1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. 2. Work table grounding Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is placed, and ground the sheet. Caution : The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the traverse deck (optical pickup).
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6 Precaution of Laser Diode
Caution : This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens. Wavelength : 780 nm Maximum output radiation power from pick up : 100 µW/VDE Laser radiation from pick up unit is safety level, but be sure the followings: 1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous. 2. Do not adjust the variable resistor on the pick up unit. It was already adjusted. 3. Do not look at the focus lens using optical instruments. 4. Recommend not to look at pick up lens for a long time. ACHTUNG : Dieses Produkt enthält eine Laserdiode. Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit abgestrahlt. Wellenlänge : 780nm Maximale Strahlungsleistung der Lasereinheit :100W/VDE Die Strahlung an der Lasereinheit ist ungefährlich, wenn folgende Punkte beachtet werden: 1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefährlich ist. 2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen. 3. Nicht mit optischen Instrumenten in die Fokussierlinse blicken. 4. Nicht über längere Zeit in die Fokussierlinse blicken. ADVARSEL: I dette a apparat anvendes laser. CAUTION!
THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
s Use of Caution Labels
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7 Operation Procedures
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8 Operation Checks and Main Component Replacement Procedures
"ATTENTION SERVICER" Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. 3. Select items from the following index when checks or replacement are required. Contents · Disassembly and assembly main unit 1. Checking of the Main, Panel, Deck and Power P.C.B. · Main Component Replacement Procedures 1. Replacement of the Traverse Deck. 2. Replacement of the Power Amplifier IC. · Disassembly and assembly of the Traverse Unit · Disassembly and assembly of the Disc Tray Warning: This product uses a laser diode. Refer to caution statement Precaution of Laser Diode. ACHTUNG: Die Lasereinheit nicht zerlegen. Die Lasereinheit darf nur gegen eine vom Hertsteller spezifizierte Einheit ausgetauscht werden.
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8.1.
Disassembly and assembly main unit
Step 1 Remove 3 screws each side and 5 screws at rear panel. Step 2 Remove the Top Cabinet
Step 3 Remove T-bracket.
Step 4 Remove 2 screws each side of the inner chassis and a screw at the rear panel. Turn locating pin 90°. (Locating pin need not have to be bent back).
Step 5 Release the wires CN 300, 301, 302, 304 and 309. Remove rear panel by pulling backward and lift rear panel assy off. Remove Front Panel
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Step 4 : Remove the CD lid in the direction of the arrow.
Step 1 : Use a hexagonal wrench and turn clockwise to release the tray. Step 2 : Remove the 2 screws.
Step 5 : Release the two catches shown above to remove the front cabinet from the CD Traverse Unit.
Separated front and rear panel assy. Removal of Inner bracket. Step 3 : Push the CD tray in the direction shown above.
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Step 7 Remove 2 screws from bottom and 2 screw beside inner bracket to push forward to release the front panel.
Step 8 To release inner bracket, remove 4 screws.
8.1.1.
Checking for Panel, Main and Deck P.C.B.
Step 1 Remove 2 screws each side.
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8.1.2.
Checking for Power P.C.B.
8.1.3.
For Live Troubleshooting Procedure
Step 6 : Reconnect all connectors. Step 7 : Use extension 14pin FFC wire for CN309. Step 8 : Supply power for troubleshooting.
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8.2.
8.2.1.
Main Component Replacement Procedures
Replacement of the Traverse Deck
Step 1 Follow the procedures in `Disassembly of the Traverse Unit' ( Step 1 - Step 4 ).
Step 5 Remove the flexible cable CN701. Step 3 Desolder the 4 legs of the 2 motors and pull out the Servo P.C.B. Step 4 Widen the 3 bosses with a flat screwdriver and pull out the 3 pins. Then remove the Traverse Deck. · Removal of the flexible cable. Push the top of the connector in the direction of the arrow 1, and then pull out the flexible cable in the direction of the arrow 2.
Note: Insert a short pin into the flexible cable for traverse unit. · Installation of the CD servo P.C.B. after replacement Step 1 Connect the FFC board. Step 2 Install the CD servo P.C.B. in the traverse deck assembly.
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Note: Before installing the CD servo P.C.B., move the optical pickup towards the outer edge from the marking (black triangle). [Otherwise, the reset detect switch (S701) mounted on the CD servo P.C.B. may be damaged.]
8.2.2.
Replacement of the Power Amplifier IC
Step 1 Follow the procedures in `Checking Procedure for each major P.C.B.' ( Step 1 - Step 6 ).
Step 6 Unsolder the terminals of Power Amp IC and replace the respective component.
Step 4 Remove the wires at CN302, CN303 and CN304 and pull out the Main PCB. Step 5 Remove the 4 screws fixed to the Power Amplifier IC.
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8.3.
Disassembly and assembly of the Traverse Unit
Step 1 Push the lever from position A to B. Step 2 Pull the stopper (black) in the direction of arrow 1 and push the lever in the direction of arrow 2. Step 3 Push the stopper (black) down until the white lever eject out.
Step 3 Pull the stopper in the direction of arrow 1 and release the lever in the direction of arrow 2 as shown.
Step 4 Lift up the traverse unit and slide out the unit as shown.
Step 4 Pull out the tray half way and push it back fully.
Step 5 Push the lever to the initial position indicated `|---|'. · Replacement of Traverse Unit Step 1 Place the traverse unit as shown. Step 2 Press in the lever shaft in the direction of arrow 1 as shown and push the traverse unit into the position in the direction of arrow 2.
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8.4.
Disassembly and assembly of the Disc Tray
(clockwise), and then open the disc tray fully.
Step 2 With lifting the claw in the direction of arrow 1, draw the clamp SW P.C.B. in the direction of arrow 2. Step 3 Remove the mechanism cover.
Step 6 Upset the CD changer unit again. Step 7 Release both the claws, and then draw the disc tray.
Step 4 Insert the gear with hexagonal wrench into the hole.
Step 8 With forcing the left guide bar manually because the left guide bar interferes with claw, draw the disc tray. · Installation of the disc tray after replacement
Step 5 Rotate the hexagonal wrench in the direction of arrow 16
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Step 1 Slide the drive rack fully in the direction of the arrow.
Step 4 Holding the disc tray manually, rotate the pulley gear in the direction of arrow. Step 5 Rotate the gear 5 or 6 times manually, and then push the disc tray.
Step 2 Holding the drive rack, not to move, install the disc tray.
Step 3 Align the drive rack with the drive gear.
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9 Self-Diagnostic Function
9.1. Self-diagnostic display
This unit is equipped with a self-diagnostic display function which, if a problem occurs, will display an error code corresponding to the problem. Use this function when performing maintenance on the unit.
9.2.
How to enter the Self-Diagnostic Function
9.3.
Cassette Mechanism Test (For error code H01, H02, H03, F01, F02)
1. Press "TAPE, DECK 1/2" to select Deck 2. 2. Load a cassette tape with the erasure prevention tab, remove from left side only and close the cassette holder. 3. Press "FAST FORWARD MEMORY" (Tape will be stop after 2 seconds) 4. Load a cassette tape with the erasure prevention tab, remove from right side only and close the cassette holder. 5. Press "REVERSE FM MODE/BP" (Tape will be stop after 2 seconds) 6. Load a pre-recorded tape with both side record tabs intact and close the cassette holder. 7. Press "PLAY/TUNE/TIME ADJ UP" (After TPS function, tape will stop automatically) 8. Press "REC/STOP" (Tape will not move) 9. Press "STOP/TUNE MODE" to indicate Error code. · If several problem exist, error code will change each time when "s /TUNE MODE" is pressed. (e.g. H01 H03 F01 .....etc.) 10. Press "TAPE, DECK 1/2" to select Deck 1. 11. Repeat step 2 to 9 to test Deck 1. (Tape Deck 1 will not check H02 because of no recording function)
9.4.
CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29, H15, F75)
1. Press "CD". 2. Press "OPEN/CLOSE (1)" and place a CD. 3. Press "OPEN/CLOSE (1)" to close the tray. 4. Press "OPEN/CLOSE (5)" and wait until the tray is open. 5. Press "OPEN/CLOSE (1)" and remove the CD. 6. Press "OPEN/CLOSE (1)" to close the tray. 18
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7. Press "s/TUNE MODE" to indicate Error Code. · If several problem exist, error code will change each time when "s/TUNE MODE" is pressed. (e.g. F15 F26 F16 ....etc).
9.5.
To clear all Error code
1. Press "STOP/TUNE MODE" button for 5 seconds. 2. FL indicator shows "CLEAR" for 1 second and change to "T".
9.6. 9.7.
How to get out from Self-Diagnostic function Power Amplifier Failure (F61)
1. Press "Power" button OFF.
1. When power amplifier fail, F61 will indicate automatically.
10 Description of Error Code
10.1. Error detection for Cassette Mechanism block
No. 1 2 3 4 5 Error MODE SW detection error REC INH SW detection error HALF SW detection error Reel Pulse detection error TPS abnormal Error Display H01 H02 H03 F01 F02 Problem condition Faulty operation of cassette mechanism. Faulty contact or short-circuit of mechanism mode switch (S951, S971). Recording not possible. Faulty contact or short-circuit of REC INH switch (S974, S975). Playback cannot perform. Faulty contact or short-circuit of HALF siwtch (S952, S972). The tape advances slightly and then stops. Faulty reel pulse, faulty hole detect IC (IC951, IC971). Cassette deck will not perform TPS function. Faulty playback EQ/recording amplifier IC (IC101).
10.2. Error detection for CD/Changer block
No. 1 Error REST SW detection error Error Display F15 Problem condition CD does not function. This error occurs when the Optical Pick Up REST SW (S701) is not detected within the specified time (about 8 seconds) CLAMP switch (S4) NG (Check & Replace) BOTTOM switch (S5) NG (Check & Replace) CD does not function. This error occurs when the POWER is ON for the CD block and an error is detected after the transmission has started. Tray 1 detect switch or Tray 2 detect switch NG (Check & Replace)
2 3 4
CD tray opens automatically Does not startup when [PLAY] button is pressed Transmission error between CD servo LSI and micon Startup fails even when you insert CD or the selected disc tray does not open Cannot insert CD Cannot eject CD The CD tray closes
F16 F17 F26
5
F27
6 7 8
F28 F29 H15
Tray 1 detect switch NG (Check & Replace) Check if disc is stuck. Tray 2 detect switch NG (Confirm & Replace) CD disc tray detect switch NG (S3) (Check & Replace)
10.3. Power Supply related error detection
No. 1 Error POWER AMP output abnormal Error Display F61 Problem condition When POWER is switched on, power become off automatically. During normal operation, if DC DET become L, PCNT shall become L and the error display on the left shall be displayed. (IC501)
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11 CD Test Mode Function
This CD test mode is provided to check CD unit without connecting to changer loading mechanism. This mode shall operate CD PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display.
11.2. CD Automatically Adjustment result indication
Under CD test mode, pressing the numeric key `0' on the remote controller will display the auto adjustment result. FLOCK, TLOCK and CLVS status shall be shown as below:
11.1. How to set CD test mode
During the above display, executing CD PLAY will display auto adjustment result for CD PLAY mode.
12 Measurements and Adjustments
12.1. Cassette Deck Section
· Measurement Condition - Reverse-mode selector switch: - Tape edit: NORMAL - Record timer: OFF - Make sure head, capstan and press roller are clean. - Judgeable room temperature 20 ± 5 °C (68 ± 9°F) · Measuring instrument - EVM (Electronic Volmeter) - Digital quency counter · Test Tape - Head azimuth adjustment (8 kHz, -20 dB); QZZCFM - Tape speed QZZCWAT gain adjustment (3 kHz, -10 dB); wish to readjust the head azimuth without replacing the acrews and springs, a fine adjustment to the azimuth screw and spring. · Please remove the screw-locking bond left on the head base when replacing the azimuth screw. · If you wish to readjust the head azimuth, be sure to adjust with adhering the cassette tape closely to the mechanism by pushing the center of cassette tape with your finger. (shown in Fig. 3) 1. Playback the azimuth adjustment portion (8 kHz, -20dB) of the test tape (QZZCFM) in the forward play mode. Vary the azimuth adjustment screw until the output of the R-CH (PB OUT-R) are maximized. 2. Perform the same adjustment in the reverse play mode. 3. After the adjustment, apply screwlock to the azimuth adjusting screw.
- Playback gain adjustment (315 Hz, 0 dB); QZZCFM - CrO2 tape, QZZCRX
12.1.1. Head Azimuth Adjustment (Deck 1/2)
Caution: · Please replace both azimuth adjustment screw (RHE5152ZB) and springs (RM0331) simultaneously when readjusting the head azimuth. (shown in Fig. 2) Even if you 20
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12.1.3. Bias and Erase Voltage Check
1. Set the unit "AUX" position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and the unit to "REC" mode (use "q REC/STOP" key). 3. Measure and make sure that the output is within the standard value. 4. Insert the CrO2 tape (QZZCRX). 5. Repeat step 2 and 3.
Bias voltage for Deck 2 Standard value) Erase voltage for Deck 2 14 ± 4mV (Normal) 17 ± 5mV (CrO2) more than 80mV (Normal) more than 90mV (CrO2)
12.1.2. Tape Speed Adjustment (Deck 1/2)
1. Set the tape edit button to "NORMAL" position. 2. Insert the test tape (QZZCWAT) to DECK 2 and playback (FWD side) the middle portion of it. 3. Adjust Motor VR (DECK 2) for the output value shown below.
Adjustment target: 2940 ~ 3060 Hz (NORMAL speed)
12.1.4. Bias Frequency Adjustment (Deck 1/2)
1. Set the unit to "AUX" position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and set the unit to "REC" mode (q use "REC/STOP" key). 3. Adjust L1002 so that the output frequency is within the standard value.
Standard Value: 97 ±8 kHz
4. After alignment, assure that the output frequency of the DECK 2 REV and DECK 1 FWD are within ±45Hz and ±60 Hz respectively of the value of the output frequency of DECK 2 FWD.
12.2. Tuner Section
12.2.1. AM-IF Alignment
SIGNAL GENERATOR OR SWEEP GENERATOR CONNECTIONS FREQUENCY RADIO DIAL SETTING ADJUSTMENT INDICATOR REMARKS (Shown in (ELECTRONIC Fig.3) VOLTMETER OSCILLOSCOPE) Headphones Jack (32) Z102 (AM IFT) Adjust for maximum output. Fabricate the plug as shown in Fig. 2 and then connect the lead wires of the plug to the measuring instrument.
Fashion a loop of 450 kHz 30% Mod. Point of non-interference several turns of wire at 400Hz. (on/about 600 kHz) and radiate a signal into the loop ant. of receiver.
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12.2.2. AM-RF Alignment
SIGNAL GENERATOR OR SWEEP GENERATOR CONNECTIONS FREQUENCY Fashion a loop of 522 kHz several turns of wire and radiate a signal into the loop ant. of receiver. Fashion a loop of 603 kHz several turns of wire and radiate a signal into the loop ant. of receiver. ADJUSTMENT INDICATOR REMARKS (Shown in (ELECTRONIC Fig.3) VOLTMETER OSCILLOSCOPE) Tuning capacitor fully closed Headphones Jack (32) Z152 (GC), Adjust for maximum output. Fabricate the plug as (AM OSC Coil) shown in Fig. 2 and then connect the lead wires of the plug to the measuring instrument. Tuning to signal Headphones Jack (32) Z152 (GC), Adjust for maximum output. Fabricate the plug as (AM ANT Coil) shown in Fig. 2 and then connect the lead wires of the plug to the measuring instrument. RADIO DIAL SETTING
12.2.3. SW1-RF Alignment (GC)
SIGNAL GENERATOR OR SWEEP GENERATOR CONNECTIONS FREQUENCY Fashion a loop of 3.2 MHz several turns of wire and radiate a signal into the loop ant. of receiver. Fashion a loop of 3.2 MHz several turns of wire and radiate a signal into the loop ant. of receiver. ADJUSTMENT INDICATOR REMARKS (Shown in (ELECTRONIC Fig.3) VOLTMETER OSCILLOSCOPE) Tuning capacitor fully closed Headphones Jack (32) Z152 Adjust for maximum output. Fabricate the plug as (SW1 OSC shown in Fig. 2 and then Coil) connect the lead wires of the plug to the measuring instrument. Tuning to signal Headphones Jack (32) Z152 Adjust for maximum output. Fabricate the plug as (SW1 ANT Coil) shown in Fig. 2 and then connect the lead wires of the plug to the measuring instrument. RADIO DIAL SETTING
12.2.4. SW2-RF Alignment (GC)
SIGNAL GENERATOR OR SWEEP GENERATOR CONNECTIONS FREQUENCY Fashion a loop of 9.4 MHz several turns of wire and radiate a signal into the loop ant. of receiver. Fashion a loop of 9.4 MHz several turns of wire and radiate a signal into the loop ant. of receiver. RADIO DIAL SETTING ADJUSTMENT INDICATOR REMARKS (Shown in (ELECTRONIC Fig.3) VOLTMETER OSCILLOSCOPE) Headphones Jack (32) Z151 Adjust for maximum output. Fabricate the plug as (SW2 OSC Coil) shown in Fig. 2 and then connect the lead wires of the plug to the measuring instrument. Headphones Jack (32) Z151 Adjust for maximum output. Fabricate the plug as (SW2 ANT Coil) shown in Fig. 2 and then connect the lead wires of the plug to the measuring instrument.
Tuning capacitor fully closed
Tuning to signal
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12.3. Alignment Points
Cassette Deck section
Tuner section
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13 Illustration of IC's, Transistors and Diodes
M38B79MFA053(100P) BH3874AKS2 (64P) MN662790RSC (80P)
RSN309W44B
BU2090AF-E2 (16P) LA1833NMNTLM (24P) LC72131MDTRM (20P) AN7348STA-E1 (24P) BA4558FE2 (8P) AN8885SBE1 (28P) TC4052BFNELM (16P)
TA7291P
M5218AP 93LC46B
1 26
1 10
BA7755A
KTC2026 KTA1046
0N2180RLC1
2 1 2 4 3 3
AN8739SBE2
KIA4558FEL
2SC2058SPTA 2SA1309ARTA
1
4
2SK544F-AC
2SD1859QRTV2 2SB1238QRTV2
KBP152G4R5
KRA102MTA KRC103MTA KRC102MTA 2SC1740SSTA
1
2
3
4
B
1 2 3 4
CE
2SA1037AKSTX 2SC2412KT96R KRA102STA KTC3875GRTA KRC111STA KTD1304TA KRC102STA KRA102STA DAP202KT146
DTA114EKA146 DTC143XKA146
2SA933SSTA 2SC2787FL1TA 2SD2144STA KTC3199GRTA RVTDTC143EST 2SC2786MTA 1N5402BM21 RL1N4003S-P 1T3T
KTA12710YTA KTC3205YTA 2SB621ARSTA KRC101MTA KTA1504GRTA KTD1146YTA KTC32030YTA
SVC211SPA-AL MA4020LTA MTZJ7R5ATA MTZJ4R7BTA MTZJ20BTA MTZJ240TA
SLI325URCT31 SLR325MCT31W SLR325DCT31
1SS355TE17 UDZSTE175R1B UDZTE173R6B MA8300MTX UDZSTE177R5B
RVD1SS133TA 1SS291TA MA165TA MA700ATA MA723TA
MA728TX
GP1S94
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14 Terminal Function of ICs
14.1. IC701 (AN8885SBE1) Servo Amplifier
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Mark PDE PDF VCC PDA PDB LPD LD RF RFIN CSBRT CEA BDO LDON GND I/O I I I I I I O O I I I O I -- Function Tracking signal input 1 Tracking signal input 2 Power supply Focus signal input terminal 1 Focus signal input terminal 2 APC amp input APC amp output RF summing output Detector's input Capacitor for OFTR connection Capacitor for HPF amp connection BDO output ("H" : drop out) APC control Ground Pin No. 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Mark /RFDET PDOWN OFTR NC ENV NC NC TEN TEOUT FEOUT FEN VREF TBAL FBAL I/O O O O O O I I I O O I O I I Function NRFDET output ("L" : detection) Power-down input OFTR output N.C. 3T-ENV output N.C. N.C. TE amp input TE amp output FE amp output FE amp input Reference voltage output Tracking balance control Focus balance control
14.2. IC702 (MN662790RSC) Servo processor/ Digital signal processor/ Digital filter/ D/A converter
No. 1 2 3 4 5 6 Mark BCLK LRCK SRDATA DVDD1 DVSS1 TX I/O O O O I I O Function N.C. N.C. N.C. Power supply input (for digital circuit) GND (for digital circuit) Digital audio interface signal output (Latches data at first transition) Microprocessor command clock signal input Microprocessor command data signal input Microprocessor command load signal input Sense signal output (OFT, FESL,MAGEND,NAJEND,PO SAD,SFG) (Not used, open) Focus servo feeding signal output ("L" : Feed) Tracking servo feeding signal output ("L" : Feed) Sub-code block clock signal output (fBLKCK = 75Hz during normal playback) External clock signal input for sub-code Q resistor Sub-code Q code output Muting input ("H": mute) Status signal output (CRC,CUE,CLVS,TTSTVP,F CLV,SQCK) Reset signal input 1/2-divided clock signal of crystal oscillating at MSEL = "H" (fSMCK = 8.4672 MHz) 1/4-divided clock signal of crystal oscillating at MSEL = "L" (fSMCK = 4.2336 MHz) Frequency Selection Terminal H = 33.8688 MHz; L = 16.9344 MHz N.C. Traverse drive output Spindle motor ON output ("L" : ON) No. 24 25 Mark ECM ECS I/O O O Function Spindle motor drive signal output(forced mode output) Spindle motor drive signal output (servo error signal output) N.C. Tracking drive output Focus drive output D/A (drive) output (TVD, ECS, TRD, FOD, FBAL, TBAL) Reference voltage input Focus balance adjustment output Tracking balance adjustment output Focus error signal input (analog input) Tracking error signal input (analog input) RF envelope signal input Vibration detection signal input ("H" : detection) Off-track signal input ("H" : off track) Track cross signal input RF detection signal input ("L" : detection) Dropout signal input ("H" : Dropout) Laser on signal output ("H" : ON) N.C. Tracking Offset alignment output/DSL Balance Output (DA Output) N.C. RF signal input Reference current input DSL bias terminal (Not used, open) DSL loop filter terminal PLL loop filter terminal VCO loop filter terminal Power supply input (for analog circuit) GND (for analog circuit)
26 27 28 29
KICK TRD FOD VREF
O O O I
7 8 9 10
MCLK MDATA MLD SENSE
I I I O
30 31 32 33 34 35 36 37 38 39 40 41 42
FBAL TBAL FE TE RFENV VDET OFT TRCRS /RFDET BDO LDON PLLF2 DSLF2
O O I I I I I I I I O I/O O
11 12 13
/FLOCK /TLOCK BLKCK
O O O
14 15 16 17
SQCK SUBQ DMUTE STAT
I O I O
18 19
/RST SMCK
I O
20
CSEL
I
43 44 45 46 47 48 49 50 51
WVEL ARF IREF DRF DSLF PLLF VCOF AVDD2 AVSS2
O I I I I/O I/O I/O I I
21 22 23
TRV TVD PC
O O O
25
SA-AK52
No. 52 53
Mark EFM PCK
I/O -
54
VCOF2
I/O
55 56 57 58 59 60 61 62
SUBC SBCK VSS X1 IN X2 OUT VDD BYTCK /CLDCK
O I I I O I -
63
FCLK
-
64 65
IPFLAG FLAG
-
Function EFM signal output PLL extraction clock output (fPCK = 4.321 MHz during normal playback) VCO Loop filter for 33.8688 MHz conversation terminal for 16.9344 MHz crystal mode, must use other circuit Sub-code serial data output Clock input for sub-code serial data GND Crystal oscillating circuit input (f = 16.9344MHz) Crystal oscillating circuit input (f = 16.9344 MHz) Power supply input (for oscillating circuit) Byte clock output Sub-code frame clock signal output (fCLDCK = 7.35 kHz during normal playback) Crystal frame clock signal output (fCLK = 7.35 kHz, double = 14.7 kHz) Interpolation flag output ("H" : Interpolation) Flag output
No. 66
Mark CLVS
I/O -
67 68 69 70 71 72 73 74 75 76
CRC DEMPH RESY IOSEL /TEST AVDD1 OUTL AVSS1 OUTR RSEL
I I I O I O I
77 78 79
IOVDD PSEL MSEL
I I I
80
SSEL
I
Function Spindle servo phase synchronizing signal output ("H" : CLV, "L" : rough servo) Sub-code CRC checked output ("H" :OK, "L" :NG) De-emphasis ON signal output ("H" :ON) Frame re-synchronizing signal output Mode switching terminal Test input Power supply input (for analog circuit) Left channel audio signal output GND Right channel audio signal output RF signal polarity assignment input (at "H" level, RSEL="H", at "L" level, RESL="L") 5V supply input Test terminal (connected to Gnd) SMCK oscillating frequency designation input ("L" :4.2336 MHz, "H" :8.4672 MHz) SUBQ output mode select ("H" :Q-code buffer mode)
14.3. IC703 (AN8739SBE2) Focus coil/ Tracking coil/ Traverse motor/ Spindle motor driver
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Mark /RST NC IN2 PC2 NC IN1 NC PVCC1 PGND1 NC D1D1+ D2D2+ I/O I I I I I O O O O Function RESET output terminal N.C. Motor Drive (2) input Turntable motor drive signal (L : "ON") N.C. Motor driver (1) input N.C. Power supply (1) for driver Ground connection (1) for driver N.C. Motor driver (1) reverse-action output Motor driver (1) forward-action output Motor driver (2) reverse-action output Motor driver (2) forward-action output No. 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Mark D3D3+ D4D4+ NC PGND2 PVCC2 NC VCC VREF IN4 IN3 RSTIN NC I/O O O O O I I I I I I Function Motor driver (3) reverse-action output Motor driver (3) forward-action output Motor driver (4) reverse-action output Motor driver (4) forward-action output N.C. Ground connection (2) for driver Power supply (2) for driver N.C. Power supply terminal Reference voltage input Motor driver (4) input Motor driver (3) input Reset terminal N.C.
14.4. IC600 (M38B79MFA053) Microprocessor
Pin No. 1 2 3 4 5 6 7 Mark DECK2 KEY3 KEY2 KEY1 V_JOG_AD J_JOG_AD CHG_AD1 I/O I I I I I I I Function Tape mecha condition input (Half2/Reci_F/Mode/Reci_R) Key 3 input Key 2 input Key 1 input Volume jog A-D detection input EQ Joy jog A-D detection input (Open Clamp) Chngr sw A-D detection input 1 Pin No. 8 9 10 11 12 13 14 15 16 Mark CHG_AD2 /CDRST STATUS SPE ST/DO/SQC K SD SUBQ RDS_CL RDS_DA I/O I O I I I/O I/O I I I Function (Position/ bottom) Chngr sw A-D detection input 2 CD reset output CD signal processor status input (INV) Speana input Tuner if data/stereo input and CD subcode clock output Tuner signal detect input CD subcode data input (INV) RDS clock input RDS data input
26
SA-AK52
Pin No. 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 45-63 64-72
Mark CNVSS /RESET XCOUT XCIN VSS XIN XOUT VCC MBP1 MBP2 MCLK/ PLLCK MDATA/ PLLDA RMT BLKCK MLD/ PLLCE SYNC DCDET 1 DCDET 2 CHG_CCW CHG_CW CHG_HALF CHG_PLGR CHG_SW2 CHG_SW1 SP_A SP_B SP_C SWFK_LED SEG1SEG19 SEG20-28 SEG9-1 SEG29-31 SEG32 GRD12-1 VEE REG_IN /EE_CS ECONO RESTSW SER4 SER3 SER2 SER1 AVSS VREF TPS DECK1
I/O O O O O I I O I I I O O O 0 I/O I/O O O O O O
73-75 76 77-88 89 90
O O O I/O
91 92 93 94 95 96 97 98 99 100
O I O O O I/O I I
Function Flash mode terminal (connect to ground) RESET input 32.768 kHz sub clock 32.768 kHz sub clock Ground (0V) 4.19 MHz main clock 4.19 MHz main clock Power supply (+5V) MPU beat proof output 1 MPU beat proof output 2 CD command clock output/ tuner PLL clock output CD command data output/ tuner PLL data output Remote control input CD block clock input (INV) CD command load output/ tuner PLL chip enable AC failure detect input DC detect input 1 DC detect input 2 Changer motor CCW output Changer motor CW output Changer half drive output Changer plunger output CD changer SW2 input CD changer SW1 input Speana control output A Speana control output B Speana control output C Super woofer LED Segment drive output (Anode drive output) Segment drive output (Anode drive output) For regional setting/ function selection use Segment drive output (Anode drive output) Segment drive output Digit drive output (Grid drive output) Power supply (-30V) Region and function setting input and eeprom chip select output Main transormer control output for economy mode CD limit SW input for the most inner point (Active Low) EEPROM_CLK / EXP2_CLK/MK_CLK ASP latch ASP_CLK/EXP1_CLK/ MK_DAT EEPROM_DAT / ASP_DAT / EXP1_DAT / EXP2 DAT Analog ground (0V) Reference for A-D Tape mecha TPS Input/ chrome 1 / chrome 2 Tape mecha condition input (Half1/Mode/Photo1/Photo 2)
27
SA-AK52
15 Block Diagram
RF
OPTICAL PICKUP
IC701 AN8885SBE1
+B
+B
SERVO AMP
SEMICONDUCTOR LASER 6 LPD
+B
8
RF
9
RFIN
10
CSBRT
11
CEA
OFTR DET. Q701 LASER POWER DRIVE
+B +B
3 TENV
ENV 19
ENV
7
LD
+ -
OFTR 17 BDO DET. RF DET. BDO 12 /RFDET 15 FEN 25
OFTR BDO /RFDET
13
LDON
+B
+
+B
PHOTO DETECTOR
4
PDA
+B
-A + +B
Ach VCBA Subtracter
+B
+
FEOUT 24 VCC 3
+B
FE
+B
Bch
E
E 5 PDB
+B +B
D A D
C B C 1 PDE +
+B +B +B
+
+B
VREF 26 GND 14
+B
Ech VCBA
Subtracter
+B
+
+ +
+B
PDOWN TEOUT
2 F F
PDF +F
+B
N.C. 18
Fch
TBAL FBAL TEIN
+
N.C.
27
28
22
16
23
21
LDON
TBAL
TRACKING FOCUS COIL COIL
RF
FBAL
+B
TE
T+
T- F+
F-
47 DSLF
48 PLLF
44 ARF
SYNDROME CALCULATION DSL PHASE COMPARATOR FREQUENCY COMPARATOR
DIGITAL AUDIO INTERFACE
TX 6
DMUTE 16 VCO CIRC DECODER X2 59
-B
IC702 MN662790RSC
SYNCHRONIZING PROTECTION EFM DATA DEMODULATOR INTERPOLATION/ SOFT MUTING/ DIGITAL ATTENUATION X1 58 S/P CONVERTER TIMING GENERATOR/ PITCH CONTROL SMCK 19 RSEL 76 VREF 29
X701
SERVO PROCESSOR/ DIGITAL SIGNAL PROCESSOR/ DIGITAL FILTER/ D/A CONVERTER
BDO /RFDET RFENV FE TE OFT 39 BDO 38 /RF DET 34 RF ENV 32 FE 33 TE 36 OFT 37 TRCRS 35 VDET VREF TBAL FBAL 29 VREF 31 TBAL 30 FBAL SERVO CPU SERVO INPUT PORT
A/D CONVERTER
DIGITAL DE-EMPHASIS SYNCHRONING INTERPOLATION PROTECTION 16K SRAM DIGITAL FILTER PWM LOGIC PEAK DETECTOR/ AUTO CUE SUB-CODE DEMODULATOR CRCC CHECK CRCC CHECK MASH LOGIC
+B +B
RAM ADDRESS GENERATOR CLV SERVO
+ -
OUTL 73
CD SIGNAL
PWM LOGIC
+ -
OUTR 75
R CH
SUBC 55 SBCK 56 DVSS1 5 20 CSEL PSEL 78 79 NSEL /CLDCK 62
IC703 AN8739SBE2
41 PLLF2 43 WVEL 42 DSLF2 40 LDON D/A CONVERTER SERVO OUTPUT PORT MICROMPUTER INTERFACE
FOCUS COIL/ TRACKING COIL/ LDON TRAVERSE MOTOR/ SPINDLE MOTOR DRIVER
/RST 1 18 D4+ RESET SIGNAL GEN. FOCUS COIL DRIVE TRACKING COIL DRIVE TRAVERSE MOTOR DRIVE SPINDLE MOTOR DRIVE IN3 26
SENSE
MDATA
FLOCK
TLOCK
BLKCK
SUBQ
SQCK
MCLK
STAT
KICK
ECM
FOD
/RST
MLD
ECS
TRD
TVD
TRV
PC
+B
27 28 22 25 26 21 24 23
10 11 12 18
13 14 15
17
8
7
9 S701(RESET)
17 16 15 12 TRAVERSE MOTOR
D4D3+ D3D1+ D1D2+ D2-
STATUS
MDATA
IN4 25
RESET
BLKCK
ST/DO
SUBQ
MCLK
/RST
MLD
E
M _ M _
IN1 6
11 14
IN2 3 PC2 4
SPINDLE MOTOR
13
28
SA-AK52
FM ANT Z120 Q1 1 MIXER RF AMP 5 Q3 OSC Q4 BUFFER Q2 7 CF201 Q101 FM IF AMP CF202
IC101 LA1833NMNTLM
3 4 6 +B (FM) 8
FM/AM IF AMP, DET/AM OSC, MIX/FM MPX
RCH
Q152 SWITCH 1 2 AM ANT 4 3 7 Q158 AM EXT ANT SWITCH Z151 5 6 9 8 LW OSC COIL 10 11
Q151 SWITCH 24 23 22 21 20 19 18 17 16 15 14 13
MW ANT COIL
+B
ALC BUFFER
AM OSC
AM MIX
AM RF AMP PHASE DET
DECODER PILOT CANCEL STEREO SWITCH
AGC LEVEL DET FM IF S-CURVE AM IF FM DET AM/FM IF BUFFER COMP AM DET
Q159 SWITCH
VCO TUNING DRIVE FF FF FF PILOT DET
Q154 SWITCH Z152 10 1 2 SW1 ANT 9 8 11 3 4 MW ANT 13 14 SW1 OSC
Q153 SWITCH 1 21 20 Q157 SWITCH 2
REG
SD
REG
3
4
5
6
7
ST
8
9 +B
10
11
12
Z102 AM IFT
X102
7 6 5
12
15 16 MW OSC
19 18 17 +B
Q156 SWITCH
Q155 SWITCH
Q107 ST/DO MUTING M SD
16
PHASE DETECTOR CHARGE PUMP
REFERENCE DIVIDER
1 X103 20
17
UNLOCK DETECTOR
SWALLOW COUNTER 1/6,1/17,4 BITS
1 2
14
18
11
12 BITS PROGRAMMABLE DIVIDER
13
DO UNIVERSAL COUNTER SHIFT REGISTER LATCH C2B I/F CE DI CL
5 2 3 4
ST/DO CE DI CL
+B
15
POWER ON RESET
19
10
7
12
6
9
8
Q106 +B POWER SUPPLY CONTROL
IC102
+B (FM:ON)
E
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
TO CD UNIT
29
SA-AK52
IC1 TA7291P
MOTOR DRIVE
Vs 8
-B
5 6
IN1 IN2
REG
OUT1 2 OUT2 10
M
RM1
4
7
+B
GND
1
Vref
Vcc
Q1 POWER SUPPLY CONTROL
+B
SW2
SW1
SW3 Q604 STATUS SWITCH Q605 SUBQ SWITCH D614 Q606 BLKCK SWITCH Q350 SWITCH (PLUNGER SUPPLY)
+B
ST/DO
+B
/CDRST Q351 RESTSW SWITCH (PLUNGER SUPPLY) SW5 SW4
SD
13
92
9
30
12
ST/DO/SQCLK
A
14
10
36
35
38
37
8
7
40
39
RESTSW
STATUS
SD
/CDRST
BLKCK
SUBQ
CHG_CW
CHG_HALF
CHG_CCW
CHG_PLGR
CE/MLD DI/MDATA CL/MCLK VT
D615 D616 D617
31 28
MLD/PLLCE MDATA/PLLDA
27
MCLK/PLLCLK
M38B79MFA053 IC600
MICROPROCESSOR
-B
V_JOG_AD J_JOG_AD XOUT MBP2 MBP1
6
5
26
25
23
22
SW600 (VOLUME)
VR900 JOG VOL
SWITCH
X600
Q607,Q608
30
XIN
CHG_SW1
CHG_SW2
CHG_AD2
CHG_AD1
D619
SA-AK52
IC1001 AN7348STA-E1
(DECK 1) P.B. HEAD LCH 24(23) 1(2) 22(3) (DECK 2) R/P HEAD LCH 21(4) 17(8) 18(7) 6 19 ALC 15 NOR/CrO & HI/LO LOGIC 10 LOGIC L/H 16 14 Q1014 (Q1015) BUFFER AMP Q1024 TPS DRIVE + 20(5)
P.B. EQ /TPS AMP REC AMP/ALC
Q1012(Q1013) MUTING
IC1003 BA4558FE2 BUFFER AMP
12 LOGIC REC/PB 9 Q1022 RIPPLE REJECTION 11
13
Q1020 (Q1021) FILTER AMP
Q1016 SWITCH (DMT)
(DECK 2) ERASE HEAD
L601
+B
BIAS OSC CONTROL
4
Q1004~Q1007
2
3 REC;ON/ BEAT PROOF SWITCHING Q1001,Q1003
SER2
SER4
SER3
IC1004 BA7755A
R/P SELECT
I/O EXPANDER
CONTROL CIRCUIT DATA CLK 2 3
LATCH
Q1017 MOTOR DRIVE M MOTOR Q1019 SOLENOID D951 SOLENOID DRIVE (DECK 1)
Q1023 13 1M
12-BIT SHIFT REGISTER
OUTPUT BUFFER
REC CR02 1H
11 12 10 8 Q1018
7
BP1
15
1PL
2PL
14
SOLENOID DRIVE (DECK2)
SOLENOID
D971
IC971 ON2180RLC1
(DECK 2)
S975 (R.REC INH) S974 (F.REC INH) S971 (MODE) S951 (MODE)
PHOTO INTERRUPTOR PHOTO INTERRUPTOR
IC951 ON2180RLC1
S972 (HALF)
S952 (HALF)
S973 (Cr02)
S953 (Cr02)
(DECK 1)
Z1001
Z1002
INTERFACE (Q1008,Q1009) INTERFACE
INTERFACE (Q1010,Q1011)
100
1
99
95
93
42
43
11
41
94
96
TPS
SPB
DECK 1
DECK 2
SER2
SER4
SPC
SPE
SPA
SER3
M38B79MFA053 IC600
MICROPROCESSOR
DCDET1
XCOUT
GRD13
SEG32
GRD1
33
19
20
77~88
45~76
D308,D310 X601 FL DISPLAY FL600 FROM POWER TRANSFORMER
+B
31
SEG1
XCIN
SER1
SER1
IC1002 BU2090AF-E2
SPE
B
C
A
SA-AK52
FILTER
FILTER
63 (1)
64 (2)
3 (5)
4 (6)
7 (9)
8 (10)
11 (13)
12 (14)
23~27
F1L1(R)
F1L2(R)
F2L1(R)
F2L2(R)
F3L1(R)
F3L2(R)
F4L1(R)
F4L2(R)
BASS1~5
IC302 M5218AP
32 (31) OUTL(R)
Q400(Q200) MUTING
45(46)
BUFFER AMP
INLC(R)
Q300
IC301 BH3874AKS2
51(52)
MUTING SWITCH Q309,Q310 MUTING SWITCH
ASP IC
RECL(R)
43(44) INLB(R) AUX JK305 47(48) INLD(R)
IC304 KIA4558FEL
HPFL1(R) HPFL2(R) HPFL3(R) BPOUT
D572,D573
SCK
36
34
37
38
39
35
17 (20)
18 (21)
19 (22)
56 SWITCH Q450 (Q250) 11~15 MUTING SWITCH
FILTER
D650
D651
MIC JK930 Q930,Q931 MIC AMP
MIC
CD SIGNAL FROM CD UNIT
41(42) INLA(R)
DUAL OP AMP
SI
C
A
B
+B
IC305 TC4052BFNELM
3~0X
Q306 AUDIO MUTING CONTROL
ANALOG SWITCH
VR930
IC601 BU2090AF-E2
I/O EXPANDER
3
IC603 93LC46B
2
3
CLK
1
EEPROM INTERFACE
2 DATA
CONTROL CIRCUIT MUTE_A NAS_B CTRL NAS_A CTRL 9 12 11 A G5~G1 4~8 14 15 D603,D604, D903,D904
3
2
12-BIT SHIFT REGISTER
MUTEA
SER1
SER4
SER2
OUTPUT BUFFER
+B +B
D618
DATA
CLK
LATCH
SOUND ANAZING /CD
CONTROL CIRCUIT
Q600 LED_CTL 13 SWITCH
PCONT
10
12-BIT SHIFT REGISTER
OUTPUT BUFFER
Q311
D307
LATCH
+B
11~13
SWITCH
+B +B
KEY SW Q307 SWITCH
IC602 BU2090AF-E2
I/O EXPANDER
90 34 2~4
DCDET2
KEY3
EE_CS/REG_IN
KEY1
MUTEA
SYNC 32 ECONO 91
9
B
10
SER3
SER2
SPE
C
A
B
M38B79MFA053 IC600
MICROPROCESSOR
/RESET
44 Q699 SWITCH
18 Q601 POWER RESET CONTROL
29 Z940
+B
32
RMT
NC
A
SA-AK52
SIGNAL LINES MAIN SIGNAL LINE
H_OUT_L(R)
CD SIGNAL LINE AM OSC SIGNAL LINE AUX SIGNAL LINE
AM SIGNAL LINE FM & AM SIGNALS LINE
PLAYBACK SIGNAL LINE RECORDING SIGNAL LINE
FM OSC SIGNAL LINE FM SIGNAL LINE
HP_L(R)
IC500 RSN309W44B
POWER IC
+VD +VCC HI 18 +CIN +DI SENS +VCC LOW 20 3 15 6 D510
Q504 REGULATOR
+B
+B +B +B
26(25) SIL(R) +
SOL(R)
1(2) + LCH 14 JK501 HIGH CH (6 )
IH DET 23(22) LIN(R) + LOUT(R)
5(8) + LCH 9 JK500 LOW CH (6 )
24 IN GND
19 -CIN
AC IN -VCC LOW 7 D509
-B
-B
16 -DI SENS
+
-VCC HI
4
-B
IC501 STK470-090
-VD
POWER IC
21 Q502 REGULATOR
-B
FILTER
H_OUT_L(R) FILTER
1
2
3
5
6
7
8
9
10
11
12
+B
+B -B
+
-B
+B
+B
+B +B
Q501,Q503 DCDET2 SWITCH
/CD
Q571 SYNC /CD JK920 HEADPHONE D570 Q573 REGULATOR D572,D573 Q505 Q570 SWITCH (POWER)
+B
PCONT
Rch
D506
POWER SUPPLY SWITCH R540
D571
+B
REGULATOR
DCDET2
HP_L(R) PCONT D505
T501 D576
T502
+B
+B
R583 Q506,Q507 SHORT CIRCUIT PROTECTION D519~D522 D515~D518 RL502 F1
SUB TRANSFORMER
JK500 AC INLET S501
D511~D514
+B
SYNC Q308 Q602 POWER SUPPLY CONTROL Q603 POWER SUPPLY CONTROL R543 D313
-B +B
REGULATOR
POWER TRANSFORMER
VOLTAGE SELECTOR TO FL DISPLAY
Q572 POWER SUPPLY CONTROL
E500 F2
33
SA-AK52
16 Schematic Diagram
(All schematic diagrams may be modified at any time with the development of the new technology) Note: S944 S945 S950 S951 S952 S953 S954 S955 S956 S958 S959 S960 S961 S971 S972 S973 S974 S975 SW1, SW2 SW4 SW5 SW600 VR900 VR930 3D AI EQ switch Super sound EQ switch Disc 2 switch Sub woofer switch EQ down switch EQ right switch EQ left switch EQ up switch Power switch Play/Rec timer switch Clock timer switch Karaoke switch Display/Character switch Leaf switch Leaf switch Leaf switch Leaf switch Leaf switch Slide switch CD switch Lock switch Joy Jog switch Volume jog control MIC level control
S501 Voltage selector switch S701 Reset switch S900 CD manager switch S901 CD 1 switch S902 CD 2 switch S903 CD 3 switch S904 CD 4 switch S905 CD 5 switch S906 Rec/Stop select switch S907 Rev mode switch S908 Tape edit switch S909 Tuner down switch S910 FM/BP Mode select switch S911 Memory switch S912 Tune mode switch S913 Tune up switch S920 CD eject switch S940 AUX switch S941 Tuner switch S942 Tape switch S943 CD switch · The voltage value and waveforms are the reference voltage of this unit measured by DC electronic voltmeter (high impedance) and oscilloscope on the basis of chassis. Accordingly, there may arise some error in voltage values and waveforms depending upon the internal impedance of the tester or the measuring unit.
No mark : Playback << >> : Rec < > : FM (( )) : CD ( ) : AM
· Importance safety notice: mark have special characteristics important for safety. Furthermore, special parts which have Components identified by purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any of components, be sure to use only manufacturer“s specified parts shown in the parts list. Caution! IC, LSI and VLSI are sensitive to static electricity. Secondary trouble can be prevented by taking care during repair. · Cover the parts boxes made of plastics with aluminium foil. · Put a conductive mat on the work table. · Ground the soldering iron. · Do not touch the pins of IC, LSI or VLSI with fingers directly.
34
SA-AK52
SCHEMATIC DIAGRAM -1
: +B SIGNAL LINE : +B SIGNAL LINE : CD SIGNAL LINE
CD SERVO CIRCUIT
OPTICAL PICKUP CIRCUIT
LASER DIODE 3.2V
R701 4.7
C701 6.3V33
Q701
2SA1037AKSTX
LASER POWER DRIVE
29
30
6 8 11 12 10 5 4 9 C
NBOUT
CN701
1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Q701
VCC PDF PDE LD GND GND NB GND NA VREF LPD GND TT+ FF+ C751 0.1 C750 0.1
0.9V ((2V))
2.7V ((2.3V))
C703 6.3V100
C
2 3 4
C704 0.1
C706 2700P R750 4.7 C714 6.3V100
2.7V((2.3V)) 0.9V((1.4V)) 0V((0.2V))
LD
1 GND
8
5
C702 0.1
2 VCC GND 7 3 BIN
NAOUT
C
6 7 8 9 10 11
C707 0.027
0V((3.1V)) PDOWN LDON 0V((3.2V)) /RFDET GND
6
C713 0.1
1.6V 1.6V 1.6V 3.2V 1.6V 1 PDE 2 PDF 3 VCC 4 PDA 5 PDB
0.7V
2 3 C
6 LPD
7 LD
8 RF
9 RFIN
10 11 12 13 14 CSBRT BDO 0V OFTR CEA NC
C
12 13 14 15 16
IC701
FEN
28 27 26 25 24 23 22 21 20 19 18 17 16 15 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V
C747 180P R744 120K
C712 0.1 C711 0.1
C710 120P R702 R705 10K 150K
C749 2200P C742 0.027
R708 22K
R707 39K
R706 1K
33
IC703
AN8739SBE2
FOCUS COIL/ TRACKING COIL/ TRAVERSE MOTOR/ SPINDLE MOTOR DRIVE
NC
R704 1K
NC
ENV
TEN
SERVO AMP
FBAL
VREF
TBAL
FEOUT
TEOUT
AN8885SBE1
IC701
0V
4 AIN VREF 5
1.9V
1.6V
28
3.3V((3.5V))
3.3V((3V))
3.3V((3V))
7.3V
3.3V
7.3V
1.6V
1.6V RSTIN NC
7.3V
PGND2
PVCC2
VREF
15 16 17 18 19 20 21 D3+ D4+ D3D4NC
VCC
NC
IN4
C735 0.1
PGND1
PVCC1
IC703
PC2 GND 30 IN2 NC /RST NC IN1 7 6 1.6V 5 1.6V 4 3.2V((0V)) 3 1.6V 2 1.6V 1
D2+
D1+
D2-
D1-
3.3V
3.3V((3.5V))
3.7V((3.5V))
3.7V((4.1V))
C734 10V220
NC
IN3
NC
29 GND
22 23 24 25 26 27 28
1.6V
14 13 12 11 10
9
8
R736 100
36
C737 0.1 M M702 SP MOTOR
35
R735 100
R724 18K
R725 390
C752 1000P
C738 0.01
C739 1500P
C715 2700P
R715 1K R727 3.9K R749 4.7K
R729 3.9K
R728 3.9K
38
C736 0.1 M M701 TRV MOTOR
37 R723 6.8K R731 6.8K
35
SA-AK52
SCHEMATIC DIAGRAM - 2
: +B SIGNAL LINE : +B SIGNAL LINE : CD SIGNAL LINE
20 18
19
23 R717 1K R721 100 C727 50V1 22
C725 1000P
C726 1000P R718 1K C728 50V1
21
C731 6.3V220 C730 0.1 C754 470P Lch OUT C732 6.3V220 C733 0.1 17 C753 470P C723 10V220
IPFLAG /CLDCK BYTCK RESY FCLK CLVS CRC DEMPH FLAG
CN702
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
A.GND Rch OUT +3.3V D.GND C743 0.1 LD SW TX +7.5V P.GND MCLK MDATA MLD
1.5V
1.5V
2.9V
3.2V
2.9V
3.2V
/TEST
IOVDD
OUTL
IOSEL
AVSS1
AVDD1
OUTR
MSEL
RSEL
PSEL
SSEL
C724 0.1
3.2V 1.5V 1.5V
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
3.2V
3.2V
8
7
6
4
60 VDD
BCLK 1 LRCK 2
59 X2 OUT 58 X1 IN 57 VSS 56 SBCK 55 SUBC 54 VCOF2
SRDATA 3 DVDD1 4 DVSS1 5 TX 6 MCLK 7 MDATA 8 1.6V 3.2V 0.5V 3.2V
X701 RSXZ16M9M01T R714 0 C722 10P C721 10P
SPEED
BLKCK SQCK R753 10 11 10 9 3 SUBQ STAT /RST REST SW
TO PANEL CIRCUIT (CP606) ON SCHEMATIC DIAGRAM-8
53 PCK 52 EFM 51 AVSS2 3.2V 50 AVDD2 49 VCOF 0.5V 48 PLLF
IC702 MN662790RSC
SERVO PROCESSOR DIGITAL SIGNAL PROCESSOR/ DIGITAL FILTER/ D/A CONVERTER
MLD 9 3.2V SENSE 10 /FLOCK 11 /TLOCK 12 BLKCK 13 0V SQCK 14 0V((0.2V)) SUBQ 15 DMUTE 16 STAT 17 0V((3.1V)) /RST 18 SMCK 19 3.1V 3.2V((3.1V))
C744 C718 R711 C717 5600P 0.22 82K 0.1 R709 47K C716 820P
R712 220 R741 47K
1.6V 47 DSLF 46 DRF 1.6V 1V 45 IREF 44 ARF 43 WVEL /RFDET TRCRS RFENV
C745 1000P
1.6V
LDON
VDET
VREF
TBAL
FBAL
KICK
ECM
BDO
FOD
ECS
TRD
OFT
TVD 1.6V
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 0V 0V((3.2V)) 0V((3.2V)) 3.2V((0V)) 1.6V 1.6V 1.6V 1.6V 0V
TRV
R742 220K
DSLF2 1.5V 42 PLLF2 41
CSEL 20
PC
TE
FE
S701 REST SW
TJ702
16
15
1
36
SA-AK52
SCHEMATIC DIAGRAM - 3
: +B SIGNAL LINE : FM SIGNAL LINE : FM OSC SIGNAL LINE
: AM SIGNAL LINE : AM OSC SIGNAL LINE
MAIN/TUNER CIRCUIT
Z120 (RAL0029)
C103 0.01 JK101 FM EXT ANT 75 GND 5.6P 1 2 1 G 2 100K S 100K 180P 0.001 2SK544 RF AMP D 1.2u 390 820K 3.3P 2SC2786M FM MIXER 2.2P 0.47u 7 1 CF201 C104 0.001 R105 470 2 R106 470K R107 330
0V (0V) <11.5V> 0V (0V) <0.7V>
3
10P
Q101
0V (0V) <0V>
Q101
AM LOOP ANT 3 4
0.001 6 390
2SC2058SPTA
FM IF AMP
3 100K 4 5 2.7K 4.7P 2.2P 390 220 560K C101 0.01 10P 8
R103 270 C102 16V10
AM EXT ANT
2SC1675L1L2 BUFFER AMP LOCAL OSC 680K 2.2P
R157 1K Z151 L104 C159 4.7P R171 10K C152 22P
2.5V (2.1V) <2.4V> 2.6V (2.1V) <2.5V>
C154 0.047 R172 180K
5.4V (5.8V) <5.4V> 5.3V (5.8V) <5.4V>
C136 0.001
AM ANT COIL
Q152
8.1V (8.2V) <8.2V>
Q151
8.1V (8.2V) <8.2V>
R152 33K
AM OSC
R151 15K
Q151-Q154 R156 10K R158 1K D151 DA204KT146 C153 18P
2SA1309ARTA
SWITCHING
R166 100K C156 2700P C155 0.047 R161 10K
R155 10K
Z152
2.6V (2.1V) <2.4V> 2.6V (2.1V) <2.4V>
1
9
10
13
21
5.3V (5.8V) <5.4V>
5.4V (5.8V) <5.4V>
5.3V (5.8V) <5.4V>
Q154
2V (1.6V) <1.9V>
Q153
5.9V (6.4V) <6V>
11 2 8 12 3 7 6 4 5 16 15 19 18 17 14 20
4.7V (5.1V) <4.8V>
R162 2.2K
Q157
5.3V (5.8V) <5.4V>
R154 68K
R164 22K
R153 15K
Q155-Q157,Q159
2SC2412KT96R
SWITCHING
C160 0.01 R165 4.7K
0V (0V) <0V> 0V (0.2V) <0V> 0.1V (0.1V) <0.1V>
0.7V (0.7V) <0.7V>
0V (0.1V) <0.1V>
0V (0V) <0V>
Q158
8.1V (8.2V) <8.2V>
R168 15K
R169 22K
Q159
0V (0V) <0V> 0V (0V) <0V>
C158 0.001
Q156
C135 0.01 R139 5.6K
0V (0V) <0V>
Q155
0V (0V) <0V>
0.1V (0V) <0.1V>
Q158
DTC114EKA146
SWITCHING
C110 0.01
R114 5.6K Q107
3.8V (4.3V) <4V>
0V (0V) <0V>
C128 0.001
37
MUTEA
DTC143XKA146
MUTING
Q107
0.1V (0.1V) <0.1V>
C105 6V47
R108 27K
SA-AK52
R117 47K C127 16V22 1 C126 1.0 C114 50V3.3 CF202 2 3 R104 1K C109 0.001 C125 16V22 R118 3.3K
C134 27P C112 0.01 C133 27P
CE
19 23 2 2 CE OSC 22 AFC VSS AM MIX OUT REG
R137 1K C130 6V100 3 5
R130 10K R119 4.7K C132 0.001 D101 UDZSTE175R1B X103 1 2
20 24
R138 3.3K Z102
1 1 FM IF IN OSC OUT XIN XOUT
SCHEMATIC DIAGRAM - 4
R167 1.5K
18 3 3 DI AOUT
R136 PLLDA 1K R120 47K C115 25V4.7 R143 22K C119 680P R121 22K R102 4.7K C139 25V4.7 C116 0.033
R135 PLLCK 1K 6
17 21 4 4 AIN AM RF IN 20 GND AGC CL AM RF IN
R113 10K C111 25V4.7 4
R116 1K
R115 560
R134 DO/ST 470 R111 390 C106 0.01
16 5 5 6 15 19 AM VDD DO PD
: +B SIGNAL LINE
<2.6V> (2.61V) ((2.61V)) 2.62V <0.55V> (0.55V) ((0.77V)) 0.55V <0.02V> (0.02V) ((0.23V)) 0.02V <0.02V> (0.02V) ((4.75V)) 0.02V <5.15V> (5.16V) ((5.03V)) 5.16V <5.01V> (0.18V) ((5.19V)) 5.19V
IC101
: FM/AM SIGNAL LINE
IC102 LC72131MDTRM
C148 0.01
7 18 SD AM OUT ST DET OUT 17 PILOT IN 16 MPX IN 15 PILOT OUT 14 14 FMIN
PLL FREQUENCY SYNTHESIZER R159 82 C147 0.001
8 FM DET 13 AMIN
6 SWA 8
7
X102 R124 33
9 VCC STRQ RCH 13
12
9
R160 8.2K
MONO 10 11 10 IFIN
C113 0.001 R129 27K C124 100P R122 2.7K
11
C138 0.01
C120 16V10
<4.66V> SWB (4.98V) ((4.83V)) 4.83V <0.02V> STRQ (0.02V) ((4.43V)) 4.43V FM <0.05V> (12.3V) ((12.31V)) 12.25V
<2.59V> (2.6V) ((2.6V)) 2.6V <0V> (0V) ((0V)) 0V <5.64V> (1.84V) ((12.33V)) 12.26V <0.81V> (0.9V) ((0V)) 0V <0.81V> (0.9V) ((0V)) 0V <1.15V> (5.16V) ((5.16V)) 5.17V <2.58V> (0V) ((0V)) 0V <0V> (2.49V) ((2.59V)) 2.59V <0V> (0V) ((0V)) 0V <0V> (0V) ((0V)) 0V
R127 470 C122 50V1
12 FM/AM MONO LCH
C131 150P R123 68K C137 3300P C118 0.01 C117 0.01
0V (0V) <13.5V>
: FM SIGNAL LINE
: FM OSC SIGNAL LINE
38
R132 10K R128 82 C107 0.0047 C141 R141 50V1 6.8K IC101 C129 6V100 C149 0.1 R131 68 FM/AM IF AMP DET/AM OSC MIX/ FM MPX C123 50V1 C121 50V0.47 C142 R142 R146 50V1 6.8K 100K R145 100K
<2.08V> (2.07V) ((2.09V)) 2.09V <6.1V> (6.42V) ((6.27V)) 6.28V <2.08V> (2.07V) ((2.07V)) 2.08V <2.06V> (2.06V) ((2.08V)) 2.07V <0V> (0V) ((0V)) 0V <5.15V> (5.14V) ((4.22V)) 5.12V <5.15V> (5.16V) ((5V)) 5.16V <3.97V> (5.15V) ((4.13V)) 4.12V <6.1V> (6.43V) ((6.17V)) 6.27V <0.02V> (0.02V) ((3.68V)) 3.68V <5.01V> (1.32V) ((5.19V)) 5.19V <3.66V> (4.55V) ((3.76V)) 3.72V <4.68V> (5.01V) ((4.85V)) 4.85V <6.11V> (6.42V) ((6.27V)) 6.27V <2.42V> (2.06V) ((2.46V)) 2.46V <2.42V> (2.06V) ((2.46V)) 2.46V <0.16V> (0.75V) ((0.25V)) 0.25V <2.02V> (1.25V) ((2.02V)) 1.86V <2.39V> (1.56V) ((2.36V)) 2.36V <2.06V> (2.06V) ((2.07V)) 2.07V <2.07V> (2.07V) ((2.08V)) 2.08V <2V> (2.01V) ((2.02V)) 2.02V <1.7V> (1.75V) ((1.76V)) 1.76V <1.69V> (1.76V) ((1.78V)) 1.77V
R133 1K
13.6V (13.6V) <0V>
13.6V (13.6V) <13.6V>
R126 1K
LA1833NMNTLM
SD
Q106 KRA102MTA
C143 0.0047
C144 0.0047
DO/ST
POWER SUPPLY CONTROL (FM : ON)
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
R125 470 RCH CE LCH SD 2A 1A PLLDA DO/ST PLLCK 15V DO/ST +7.5V MUTEA
TO MAIN CIRCUIT (1B) ON SCHEMATIC DIAGRAM-5
TO MAIN CIRCUIT (2B) ON SCHEMATIC DIAGRAM-5
SA-AK52
SCHEMATIC DIAGRAM - 5
: +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE : CD SIGNAL LINE : FM/AM SIGNAL LINE : RECORD SIGNAL LINE
TO PANEL CIRCUIT (CP605) ON SCHEMATIC DIAGRAM-9
MAIN CIRCUIT
CN303
20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
28 27 26 25
SPC
SPB
PLLDA
CDR
HPL
/CD
TX
PLLCLK
PGND
VREF+
A.GND
PLLCE1
CD3.3V
HP_SW
HPR ASP_CLK
CDL
SPA
DC_DET2
CHG_PLGR
CHG_HALF
DC_DET1
CDDGND
R212 R211 4.7K 2.2K R412 50V2.2 4.7K C235 50V2.2 JK305 Lch R401 2.7K C401 100P AUX Rch R201 2.7K R210 1K R209 47K C201 100P C402 R402 100P 10K C202 100P R202 10K C434 50V4.7 C234 50V4.7
AUX1_L AUX1_R
C435 50V2.2 C436 50V2.2 C236 50V2.2
C303 16V10 R302 R301 100K 100K C407 16V10 C207 16V10 C308 0.1 C310 0.047 R414 10K R214
<0V>(0V) ((0V))0V
INRD
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34
INRC
INRB
INRA
INLD
INLC
INLB
INLA
BPOUT
BPMF
SCK
C
B
49 ALCC
<3.99V>(4.0V) 50 ALCR ((3.99V))3.99V <4.57V>(4.57V) ((4.57V))4.57V 52 RECR <4.57V>(4.57V) ((4.57V))4.57V 53 VFC1 <4.54V>(4.54V) ((4.54V))4.54V 54 GND <0V>(0V) ((0V))0V 55 VFC2 C361 <4.53V>(4.53V) ((4.53V))4.53V 56 MIC 16V10 <4.53V>(4.53V) ((4.53V))4.53V 57 DPLL1 <4.54V>(4.54V) ((4.54V))4.54V 58 DPLL2 <4.53V>(4.53V) ((4.53V))4.53V 59 DPLR1 <4.54V>(4.54V) ((4.54V))4.54V 60 DPLR2 <0V>(0V) ((0V))0V 61 PS1 <4.52V>(4.52V) ((4.52V))4.52V 62 PS2 <4.53V>(4.53V) ((4.53V))4.53V 63 F1L1 <4.53V>(4.53V) ((4.53V))4.53V 64 F1L2 <4.53V>(4.53V) ((4.53V))4.53V
51 RECL
R410 1K R409 47K 2B RCH C301 1000P R300 4.7K PLLCE1 R208 10K C204 220P 302 R207 1.5K
TO TUNER CIRCUIT (2A) ON SCHEMATIC DIAGRAM-4
IC301 BH3874AKS2 AUDIO SOUND PROCESSOR
CE LCH PLLDA DO/ST PLLCLK
10K C304 0.047
301 R407 1.5K C305 4700P R408 10K C404 220P C300 0.01 R303 10K R304 10
F1R1
F1R2
F2R1
F2R2
F3R1
F3R2
F4R1
A
F4R2
F2L1
F2L2
F3L1
F3L2
F4L1
F4L2
TO TUNER CIRCUIT (1A) ON SCHEMATIC DIAGRAM-4
1B
TUN_GND 15V DO/ST SD 7.5V MUTEA
D318 UDZSTE177R5B DO/ST SD +9.0V MIC R368 1.5K
50V0.15
C333
0.022
4700P
C323 0.022
C311 50V0.33 10 9 8 7 PBL PBR AGND RECL RECR +B DGND MO10V MOGND MECA.G
C313 0.1
C315 C322 C324 C334 C336 C341 0.022 0.022 4700P 4700P 1000P 0.1
TO DECK CIRCUIT (H1001/W1001) ON SCHEMATIC DIAGRAM-11
6 5 4 3 2 1 CN304
R213 56K
R413 56K
R215 1K
R415 1K
39
4700P
C316 0.1
C312
C314 0.1
C335
C340
R369 10K
<4.51V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V4)).52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V <4.52V>(4.52V) ((4.52V))4.52V
C306 C307 0.33 0.15
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
F5L
SI
<4.52V>(4.52V) ((4.52V))4.52V <4.51V>(4.52V) ((4.51V))4.52V <4.51V>(4.51V) ((4.50V))4.52V <4.51V>(4.51V) ((4.50V))4.52V <4.51V>(4.51V) ((4.50V))4.52V <4.51V>(4.51V) C233 ((4.50V))4.52V <4.51V>(4.51V) C433 ((4.50V))4.52V <4.51V>(4.51V) R367 ((4.51V))4.50V <4.55V>(4.51V) 10K ((4.51V))4.50V <4.52V>(4.55V) ((4.5V))4.55V <2.2V>(2.2V) ((2.19V))2.43V <2.2V>(2.2V) ((2.19V))2.91V <2.2V>(2.2V) ((2.19V))2.49V R371 <0.64V>(0.64V) ((0.64V))0.64V 4.7K <0.01V>(0.01V) ((0.01V))0.01V
50V2.2
SPEANA SPC SPB SPA
R411
2.2K
HP_GND C357 16V10
CD7.5V
SA-AK52
SCHEMATIC DIAGRAM - 6
: +B SIGNAL LINE
TO PANEL CIRCUIT (CP607) ON SCHEMATIC DIAGRAM-9
CN302
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
: -B SIGNAL LINE
: MAIN SIGNAL LINE
R380 ASP_LATCH
CHG_CW
CHG_CCW
ASP_DATA
-VP
CHG_AD2
SW5V CHG_AD1
ST_DO
SW2
MIC_GND
DET_OUT
ASP_CLK
SPEANA
MUTEA
NAS_A
LED9V
NAS_B
DGND
+9.0V
PCONT
SW1
MIC
SD C375 1000P
ASP_LATCH
1K
ASP_DATA
SW5V
+9.0V
R222 4.7K
<-9.11V>(-9.11V) ((-9.11V))-9.11V
R225 R224 C228 3.9K 15K 16V10 C229 C230 100P 47P
<0V>(0V) ((0V))0V <0V>(0V) ((0V))0V <0V>(0V) ((0V))0V
+9.0V
-9.0V
C227 680P
HPR
HPL
R253 22K
(0V)<0V> 0V((0V)) [0V] (-3.76V)<-3.76V> -3.76V((-3.76V))[-3.76V]
Q250
R372 10K
R373 15K
R379 4.7K C363 100P C364 100P C226 0.068 R223 47K C318 0.01
Q250
KTD1304TA
HP MUTING SWITCH RCH Q450
R450 R449 120 120 C432 3300P R451 R448 120 120
R453 22K C232 3300P
R250 R249 120 120
4
3
2
1
(0V)<0V>0V ((0V))[0V]
R226 120
KTD1304TA
HP MUTING SWITCH LCH
R251 R248 120 120
C426 0.068 C356 0.22 C431 50V3.3 C231 50V3.3 C353 0.1 R383 3.9K C354 10V220 C352 0.22 C351 0.22 R377 18K C349 0.1 R375 8.2K C348 0.1 C346 C347 0.068 0.1 R374 8.2K R381 47K R382 47K C344 0.1 Q310 R384 47K C362 50V2.2 D319 MA728TX R385 68K C350 0.1 C355 16V10 R422 4.7K R227 0 R427 0
<0.07V>(0.07V) ((0.07V))0.07V
C427 680P
R423 47K
IC302
IC302
Q450
R233 330
(0V)<0V>0V ((0V))[0V] (-3.76V)<-3.76V> -3.76V((-3.76V))[-3.76V]
(0V)<0V>0V ((0V))[0V]
R426 120 C225 50V3.3
(0V)<0V> 0V((0V))[0V] (-3.76V)<-3.76V> -3.76V((-3.76V))[-3.76V]
H_OUT_R
STEPC
33 OUTL 32 <4.53V>(4.53V)
M5218AP
<0V>(0V) ((0V))0V
5
6
<0V>(0V) ((0V))0V
7
<0V>(0V) ((0V))0V
8
<9.04V>(9.04V) ((9.04V))9.04V
BUFFER AMP
C238 16V47 C237 1000P C437 1000P C438 16V47
F5R
((4.53V))4.53V OUTR31 <4.53V>(4.53V) ((4.53V))4.53V VCC 30 <9.05V>(9.04V) ((9.04V))9.04V CAP 29 <4.52V>(4.52V) ((4.50V))4.51V FILTER 28 <4.52V>(4.52V) ((4.52V))4.52V BASS5 27 <4.53V>(4.52V) ((4.53V))4.53V BASS4 26 <4.5V>(4.49V) ((4.49V))4.49V BASS3 25 <4.53V>(4.51V) ((4.54V))4.54V BASS2 24 <4.51V>(4.52V) ((4.51V))4.51V BASS1 23 <4.52V>(4.53V) ((4.52V))4.52V HPFR3 22 <4.52V>(4.53V) HPFR2 21 ((4.52V))4.52V <4.51V>(4.51V) ((4.50V))4.51V HPFR1 20 <4.52V>(4.52V) ((4.52V))4.52V HPFL3 19 <4.52V>(4.53V) ((4.52V))4.53V HPFL2 18 <4.52V>(4.51V) HPFL1 17 ((4.52V))4.51V <4.52V>(4.52V) ((4.52V))4.52V
Q200
R220 100K
Q200
C320 0.01 Q309
C429 C430 100P 47P C428 R425 R424 16V10 3.9K 15K
KTD1304TA
(0V)<0V> 0V ((0V))[0V]
R221 1.5K GND1
MUTING SWITCH HIGH-CHANNEL RCH
R420 100K
Q400
R433 330
(-3.77V)<-3.77V> -3.77V((-3.77V))[-3.77V]
Q400
KTD1304TA KTA1504GRTA
R341 4.7K
(0V) <0V> 0V ((0V)) [0V]
(0V)<0V> 0V((0V))[0V]
R421 1.5K H_OUT_L C425 50V3.3 LO_OUT
MUTING SWITCH HIGH-CHANNEL LCH Q300
R376 12K
R342 10K
(0V) <0V> 0V ((0V)) [0V]
KTD1304TA
R327 270 C332 50V3.3 R326 100 R325 22K C330 47P
<0V>(0V) ((0V))0V <0V>(0V) ((0V))0V <0V>(0V) ((0V))0V
MUTING SWITCH LOW-CHANNEL C328 16V10 R324 1.8K
R320 100K
(0V)<0V> 0V((0V)) [0V] (-3.76V)<-3.76V> -3.76V((-3.76V))[-3.76V]
C325 50V10 R321 1.5K -9.0V
R356 1K R360 C366 100K 16V10
(0V)<0V> 0V((0V)) [0V]
Q300
C319 0.01
Q309
(-1.93V) <-1.79V> -1.86V ((-1.91V)) [-1.79V]
16
<4.52V>(4.52V) ((4.52V))4.52V
C329 100P
R323 47K
C327 680P
R329 47K
(-3.76V)<-3.76V> -3.76V((-3.76V)) [-3.76V]
Q306
MUTEA
(-0.39V)<-0.39V> -0.39V((-0.4V)) [-0.39V]
C345 0.1
KTA1504GRTA
D320 MA728TX
(0V) <0V> 0V ((0V)) [0V]
R343 10K
(0V) <0V> 0V ((0V)) [0V]
C337 1000P
1
2
3
4
<-9.11V>(-9.11V) ((-9.11V))-9.11V
R328 33K
C317 50V4.7
1000P
C342
R357 1K R361 C367 10K 16V10 C343 0.068 R378 47K R344 2.2K R348 18K
Q310
(0V) <0V> 0V ((0V)) [0V]
(0V)<0V> 0V((0V)) [0V]
IC304
IC304 C321 0.01 8 7 6 5
<9.04V> <8.55V> <8.55V> <0.71V> (9.04V) (8.58V) (8.58V) (0.7V) ((9.04V)) ((8.58V)) ((8.58V)) ((0.7V)) 0.71V 8.59V 8.59V 9.04V
Q306 AUDIO MUTING CONTROL +9.0V
R333 56K
KIA4558FEL KRA102STA
DUAL OP-AMP
R338 680 R335 R336 820K 820K
R334 470
C338 0.1
C339 2.2
R307 0 SW5V
R339 R340 1.5K 1K
<0.13V> (0.13V) ((0.16V)) 0.13V <0.13V> (0.13V) ((0.15V)) 0.13V <0V> (0V) ((0V)) 0V <0V> (0V) ((0V)) 0V <0V> (0V) ((0V)) 0V <0V> (0V) ((0V)) 0V <0V> (0V) ((0V)) 0V <4.92V> (4.92V) ((4.92V)) 4.91V
X-COM
VDD
9
B
10
A
1X
3X
0X
2X
11
12
13
14
15
16
Y-COM
IC305 TC4052BFNELM
ANALOG SWITCH
2Y
VSS
VEE
INH
1Y
3Y
8
7
6
5
<-8.98V> <-8.98V><0V> (-8.99V) (-8.99V) (0V) ((-8.97V)) ((-8.97V))((0V)) -8.98V -8.98V 0V
<0.01V> <0.01V> <0V> (0V) (0V) (0V) ((0V)) ((0V)) ((0V)) 0V 0V 0V
4
3
2
<0.01V> <0.01V> (0V) (0V) ((0V)) ((0V)) 0V 0V
0Y
1
CHG_AD1
VREF+
VREF+
CHG_HALF
CHG_CW
SW5V
CHG_CCW
NAS_A
NAS_B
R355 22K
R358 47K
R354 12K
R353 10K C365 0.47
R345 220
CHG_AD2
R346 22K
R351 10K
R347 12K
BOTTOMSW POSITION PLUNGER
CHG_HALF
CLAMP
SW2
DGND
PGND
OPEN
R359 47K
CHG_CCW
CHG_CW
SW1
14 13 12 11 10
8V
9
8
7
6
5
5V
4
3
2
1
CN309
TO CD LOADING CIRCUIT (CN1) ON SCHEMATIC DIAGRAM-13
40
VREF+
-9.0V
SW2 SW1
SA-AK52
SCHEMATIC DIAGRAM - 7
: +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE
(-29.86V)<-29.85V> -29.89V((-29.84V)) [-29.94V]
(-44.1V)<-43.8V> -43.9V((-42.9V)) [-44.2V]
RL1N4003S-P D314 RL1N4003S-P R332 4.7 R331 4.7K D315 MA8300MTX D313 C360 63V100
-VP
(-30.45V) <-30.48V> -30.5V ((-30.44V)) [-30.55V]
C359 0.01 R330 150
Q308 2SB621ARSTA C358
REGULATOR FOR FL DISPLAY +9.0V -9.0V
CN301 PGND 1
2
100V10
+9.0V
3
-9.0V 4
5
CD7.5V CD3.3V SW5V LED9V
D312 RL1N4003S-P
GND
6
8V 7 CD3.3V 8 SW5V 9
10
TO POWER CIRCUIT (CP500) ON SCHEMATIC DIAGRAM-12
LED9V 11 C376 16V220 Q311 MO10V 12 C377 0.01 R362 330 C374 1000P TGND 1 15V 2 H_OUT_L
3
2SD1859QRTV2
SWITCH DC DET +B H_OUT_L H_OUT_R LO_OUT GND1 +15V -9.0V /CD PCONT HP_SW MUTEA MO10V
(13.85V) <13.85V> 13.85V ((13.85V)) [13.85V]
(13V) <12.74V> 12.95V ((13.02V)) [13.02V]
CN300
Q311
(12.32V)<12.06V> 12.27V((12.34V))[12.34V]
H_OUT_R LO_OUT GND1
4 5 6 7 8
TO POWER CIRCUIT (CP501) ON SCHEMATIC DIAGRAM-12
/CD DC_DET2 PCONT HP_SW
9 10 11 12
D308 DAP202KT146 DC_DET1 DC_DET2
D310 DAP202KT146
D307 DAP202KT146
(12.32V)<12.06V> 12.27V((12.34V)) [12.34V]
(13V)<12.74V> 12.95V((13.02V)) [13.02V]
+9.0V
Q307 KRC111STA
SWITCH DC DET
(13.85V)<13.85V> 13.85V((13.85V)) [13.85V]
R313 39K C331 50V4.7 R316 15K
SW5V
Q350 (0V) <0V>
RL1N4003S-P D316
(9.96V) <9.96V> 0V ((0V)) 9.94V ((9.95V))[9.95V] [0V]
(9.95V) <9.94V> 9.93V ((9.93V))[9.94V]
R349 10K Q350
R350 1K
(9.95V) <9.95V> 9.95V ((9.95V))[9.95V]
2SB621ARSTA
SWITCH +10V MOTOR FOR CD Q351
CHG_PLGR
(0V) <0V> 0V ((0V)) [0V]
Q351
(0V) <0V> 0V ((0V)) [0V]
KRC102STA
CD SUPPLY CONTROL SWITCH
1SS355TE17
D309
41
SA-AK52
SCHEMATIC DIAGRAM - 7
: +B SIGNAL LINE : MAIN SIGNAL LINE : CD SIGNAL LINE
PANEL CIRCUIT
FL600 RSL0310-F
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
TACT SWITCH (1) CIRCUIT
IC602
O Vdd G
1 2 3
C600 35V22
Z940 RCD37142TC5 REMOTE CONTROL SENSOR
BU2090AF-E2
IO EXP 2
9 <0.13V> (0.13V) ((0.15))0.13V 10 <0.13V> (0.13V) ((0.15))0.13V 11 CD <0.13V> C695 (0.13V) 1000P ((0.15))0.13V 12 TAPE <0.13V> C694 (0.13V) 1000P ((0.16))0.13V 13 TUNER <0.24V> (0.24V) C693 ((0.26))0.24V 1000P <7.34V> 14 AUX (7.34V) ((7.32))7.35V 15 <6.0V> (6.01V) ((0.28))6.0V 16 VCC <5.3V> (5.31V) ((5.28))5.3V 8 <0.45V> 7 <7.37V> 6 5 4
(0.45V) ((0.47))0.45V
C941 0.01 C940 1000P D949 SLR325DCT31 D946-D948 SLR325MCT31W
IC602
D949
R949 470
CLK 3 Data 2 GND 1
C602 470P C603 470P
R604 D604 D904 82
R603 82 D603 D903
R608 100
9 8 7 6 5 4 3 2 1
9 8 7 6 5 4 3 2 1
D948 R948 470 D947 R947 470 D946 R946 470 R940 2.7K R941 4.7K R942 6.8K R943 10K R944 22K R945 68K S940
AUX
RMT VREF+ NAS_LED CD_LED TAPE_LED TUNER_LED CTL_+B SUB_K1 GND
(7.38V) ((7.36))7.36V <7.37V> (7.38V) ((7.36))7.36V <7.34V> (7.34V) ((7.32))7.34V <7.34V> (7.34V) ((7.33))7.33V <0.1V> (0.1V) ((0.11))0.1V <0.07V> (0.07V) ((0.08))0.07V <0.07V> (0.07V) ((0.08))0.07V
Q600
(9.21V)<9.21V> 9.2V((9.15V)) [9.21V] (9.21V)<9.22V> 9.21V((9.16V)) [9.23V] (8.47V)<8.47V> 8.46V((8.47V)) [8.47V]
R624 22K
D690,D699,D693-D697 RVD1SS133TA
R623 1.5K
RMT LED9V LED_CTL
D690 D699 D697 D696 D695 D694 D693 C608 R637 330P 22K C609 6.3V100 C610 0.1 L603 RLQB3R3JTD-D
SER2
C601 0.1
D603-D604 D903-D904 SLR325MCT31W Q600 SUPPLY SWITCH LED +9V
NAS_LED
KTA12710YTA
NAS_LED CTRL_+B SER4 SER1 DVREF+ DISP/CHARA EQ_RIGHT
R961 R960 R959 R958 R957 R956 R955 R954 R953 R952 22K 10K 6.8K 4.7K 2.7K 2.2K 1.8K 1.2K 1K 1K
CLK/TIMER EQ_DOWN PLAY/REC D1 EJECT KARAOKE EQ_LEFT POWER EQ_UP
H940B
S959
S960
S955
S954
S953
S962
S961
S958
S941
TUNER /BAND
S956
S952
H940A
R610 1K R609 1K
S942
TAPE
R950 10K S950
D2 EJECT
R951 22K S951
S.WOOFER
S943
CD
R638 680 C611 6.3V1000P D610 C612 MA723TA 1000P
IC601
AI-EQ
S944
BU2090AF-E2
IO EXPANDER IC
R628 R629 10K 10K
J_JOG_A/B
<0.45V> (0.45V) ((0.46))0.45V <0V>(0V) ((0))0V
<0V>(0V) ((0))0V
<0V>(0V) ((0))0V
DATA
5 6
5 6 7 8 9 10 11 12
PCONT
NAS_B CTRL
NAS_A CTRL
LED_ CTL
<0.11V>(0.11V) ((0.12V))0.11V
<0V>(0.39V) ((0.12V))0.39V
<0.11V>(0.11V) ((0.12V))0.1V
12
CN900