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Panasonic SA-AK240GCP Service Manual
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Panasonic SA-AK240GCP Service Manual

Cd stereo system
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Notes: This model's CD mechanism changer unit is CRS1. Please refer to the original Service Manual
(Order No. MD0509368C0) for this mechanism.

Specifications

n AMPLIFIER SECTION
RMS output power
THD 10%, both channels driven
1 kHz
Total output power
n FM/AM TUNER, TERMINALS SECTION
Preset station
Frequency Modulation (FM)
Frequency range
Sensitivity
S/N 26dB
Antenna terminal(s)
Amplitude Modulation (AM)
Frequency range
Sensitivity
S/N 20dB (at 999 kHz)
Music Port input jack
Terminal
Sensitivity
Phone jack
Terminal
115 W per channel (3 Ω)
230 W
FM 15 stations
AM 15 stations
87.50 to 108.00 MHz (50 kHz
steps)
4.0 µV (IHF)
2.2 µV
75 Ω (unbalanced)
522 to 1629 kHz (9 kHz step)
520 to 1630 kHz (10 kHz step)
560 µV/m
Stereo, 3.5 mm jack
100 mV, 4.7 kΩ
Stereo, 3.5 mm jack
SA-AK240GCP
Colour
(S)... Silver Type
Mic jack
Terminal
Sensitivity
n CASSETTE DECK SECTION
Track system
Heads
Record/playback
Erasure
Motor
Recording system
Erasing system
Tape speed
Overall frequency response (+3, -6 dB) at DECK OUT
NORMAL
S/N ratio
Wow and flutter
Fast forward and rewind time
n DISC SECTION
Disc played [8 cm or 12 cm]
(1) CD-Audio (CD-DA)
(2) CD-R/RW (CD-DA, MP3, WMA formatted disc)
(3) MP3/WMA
© 2006 Matsushita Electric Industrial Co. Ltd.. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MD0512480C3
CD Stereo System
Mono, 3.5 mm jack
0.7 mV, 680 Ω
4 track, 2 channel
Solid permalloy head
Double gap ferrite head
DC servo motor
AC bias 100 kHz
AC erase 100 kHz
35 Hz to 14 kHz
50 dB (A weighted)
0.18 % (WRMS)
Approx. 120 seconds with
C-60 cassette tape
Unauthorized
copying
4.8 cm/s
and

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Summary of Contents for Panasonic SA-AK240GCP

  • Page 1: Specifications

    ORDER NO. MD0512480C3 CD Stereo System SA-AK240GCP Colour (S)... Silver Type Notes: This model’s CD mechanism changer unit is CRS1. Please refer to the original Service Manual (Order No. MD0509368C0) for this mechanism. Specifications n AMPLIFIER SECTION Mic jack RMS output power Terminal Mono, 3.5 mm jack...

  • Page 2: Table Of Contents

    SA-AK240GCP Bit rate Power consumption 95 W MP3, WMA 32 kbps to 320 kbps Power consumption in standby 0.6 W mode Sampling frequency Dimensions (W x H x D) 250 x 330 x 343 mm MP3/WMA 32 kHz, 44.1 kHz, 48 kHz Mass 6.9 kg...
  • Page 3 SA-AK240GCP 17.2. (A) CD Servo Circuit 18.6. (F) Deck P.C.B. , (G) Deck Mechanism P.C.B. & (H) Tuner 17.3. (B) Main (Tuner) Circuit Pack P.C.B. 17.4. (B) Main Circuit 19 Illustration of ICs, Transistors and Diodes 17.5. (C) Panel Circuit 20 Terminal Function of IC's 17.6.

  • Page 4: Safety Precautions

    SA-AK240GCP 1 Safety Precautions 1.1. General Guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, ensure that all the protective devices such as insulation barriers and insulation papers shields are properly installed.

  • Page 5: Prevention Of Electro Static Discharge (Esd) To

    SA-AK240GCP · 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.

  • Page 6: Handling Precautions For Traverse Deck

    SA-AK240GCP 3 Handling Precautions For Traverse Deck The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by the static electricity of clothes or our human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).

  • Page 7: Precaution Of Laser Diode

    SA-AK240GCP 4 Precaution of laser diode CAUTION: This unit utilizes a class 1 laser diode in the optical pickup unit . Invisible laser radiation is emitted from the optical pickup lens. Wavelength: 780nm When the unit is turned on: 1. Do not look directly into the optical pickup lens.

  • Page 8: Handling The Lead-Free Solder

    SA-AK240GCP 5 Handling the Lead-free Solder 5.1. About lead free solder (PbF) Distinction of PbF P.C.B.: P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B. Caution: · Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use a high temperature soldering iron.

  • Page 9: New Features

    SA-AK240GCP 6 New Features 6.1. CRS1 Mechanism Overview 6.1.1. General Feature · This is a five disc changer mechanism for CD/DVD. The outline figure is shown below.
  • Page 10 SA-AK240GCP · The mechanism has "CHANGE WHILE PLAY" function. It open other trays for disc exchanging while one tray is at PLAY position performing recording or reproducing. · The mechanism can quickly change all trays with "CHANGE ALL" function. All trays can be move to OPEN position with one operation.

  • Page 11: Music Port

    SA-AK240GCP Note: * represent tray number (from 1 ~ 5) 6.1.4. New CD Mechanism (CRS1) Note: This service manual does not contain the following information for the mention CD Mechanism drive: · Schematic Diagram, Block Diagram and P.C.B. layout of CD Loading P.C.B.

  • Page 12: Accessories

    SA-AK240GCP 7 Accessories Remote Control FM Antenna Wire AC Cord AM Loop Antenna AC Plug Adaptor...

  • Page 13: Operating Instructions Procedures

    SA-AK240GCP 8 Operating Instructions Procedures...
  • Page 14 SA-AK240GCP...

  • Page 15: Self Diagnosis And Special Mode Setting

    SA-AK240GCP 9 Self diagnosis and special mode setting This unit is equipped with functions for checking and inspecting namely: Self-Diagnostic and Test Mode. 9.1. Special Mode Table Item FL Display Key Operation Mode Name Description Front Key Self -Diagnostic enter...
  • Page 16 SA-AK240GCP Item FL Display Key Operation Mode Name Description Front Key FL Display Test To check In doctor mode: segments display (All 1. Press [DIMMER] button on remote control. segments will light up and LED will blink at 0.5 second interval)

  • Page 17: Error Code Table

    SA-AK240GCP 9.2. Error code Table Self-Diagnosis Function (refer Section 9.1) provides information on any problems occuring for the unit and its respective components by displaying the error codes. These error code such as U**, H** and F** are stored in memory and held unless it is...
  • Page 18 SA-AK240GCP The error code is automatically display after entering into self-diagnostic mode. Error Code Diagnosis Contents Description of error Automatic FL Display Remarks Mode SW, plunger For deck mechanism unit (For deck 1/2). and capstan motor Press [ ] on main unit for abnormal next error.
  • Page 19 SA-AK240GCP Error Code Diagnosis Contents Description of error Automatic FL Display Remarks ITOP UD assembly UD Rack does not move For CD changer unit (CRS1). to front direction. This Press [SINGLE CHANGE] on main unit lead to UD base not for next error.
  • Page 20 SA-AK240GCP Error Code Diagnosis Contents Description of error Automatic FL Display Remarks F2NG Fail - safe mode. (For When the tray close For CD changer unit (CRS1). Press [SINGLE CHANGE] on main unit open/close tray operation is performed, it unit(s)) fails to close.

  • Page 21: Assembling And Disassembling

    SA-AK240GCP 10 Assembling and Disassembling 10.1. Caution Special Note: This model uses a new CD changer unit CRS1. In this following section does not contain the necessary disassembly & assembly information for the CD changer unit (CRS1) except the disasembly & assembly of traverse unit. Kindly refer to the original service manual for the CD changer unit.

  • Page 22: Disassembly Flow Chart

    SA-AK240GCP 10.2. Disassembly flow chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing. To assemble the unit, reverse the steps shown in the chart as below.

  • Page 23: Main Parts Location

    SA-AK240GCP 10.3. Main Parts Location...

  • Page 24: Disassembly Of Top Cabinet

    SA-AK240GCP 10.4. Disassembly of Top Cabinet Step 1 Remove 3 screws at each side and 5 screws at rear panel. Step 2 Lift up both sides of the top cabinet, push the top cabinet towards the rear to remove the top cabinet.
  • Page 25 SA-AK240GCP Step 3 Release the claws on both ends. Step 5 Remove 2 screws. Step 6 Remove the Mecha Chassis. Note: For disassembly & assembly of traverse unit, please refer to section 10.15 of this service manual.Please refer to original Service Manual for the Disassembly and Assembly of the CD Changer Unit (CRS1).

  • Page 26: Disassembly Of Main P.c.b

    SA-AK240GCP 10.7. Disassembly of Main P.C.B. · Follow the (Step 1) - (Step 2) of Item 10.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 10.6 - Disassembly of CD Changer Unit · Follow the (Step 1) - (Step 3) of Item 10.5 - Disassembly of Rear Panel Step 1 Disconnect FFC cables (CN2803, CN2806 and CN2951).

  • Page 27: Disassembly Of Power P.c.b

    SA-AK240GCP 10.9. Disassembly of Power P.C.B. · Follow the (Step 1) - (Step 2) of Item 10.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 10.6 - Disassembly of CD Changer Unit · Follow the (Step 1) - (Step 3) of Item 10.5 - Disassembly of Rear Panel ·...

  • Page 28: Disassembly Of Front Panel Unit

    SA-AK240GCP 10.10. Disassembly of Front Panel Unit · Follow the (Step 1) - (Step 2) of Item 10.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 10.6 - Disassembly of CD Changer Unit Step 1 Disconnect connectors (CN2803, CN2806, CN2951, CN5950 &...

  • Page 29: Disassembly For Panel P.c.b

    SA-AK240GCP Step 4 Remove the front panel unit. each side) of bottom chassis to be aligned to front panel’s slot. Assembly is secured upon hearing clicking sound. Note: Ensure 2 claws located at the bottom chassis is seated into the 2 slots at bottom of front panel at 2 catches (one on 10.11.

  • Page 30: Disassembly Of Deck Mechanism Unit

    SA-AK240GCP 10.12. Disassembly of Deck mechanism unit · Follow the (Step 1) - (Step 2) of Item 10.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 10.6 - Disassembly of CD Changer Unit ·...
  • Page 31 SA-AK240GCP Step 3: Remove the traverse unit as arrow shown. · Assembly of Traverse Unit Step 1: Press and hold the plunger lever and rotate the gear as arrows shown until it stop. Step 1: Turn over the unit and install the traverse unit.

  • Page 32: Disassembly Of Optical Pickup Unit (Cd Mechanism)

    SA-AK240GCP Step 2: Push the traverse slide plate as arrow shown to lock the traverse unit. 10.15. Disassembly of optical pickup unit (CD mechanism) · Follow the (Step 1) - (Step 2) of Item 10.4 - Disassembly of Top Cabinet ·...
  • Page 33 SA-AK240GCP Step 8 Remove the catch of the drive rack, and take out the drive rack. Step 4 Remove the traverse deck. Note: As floating springs (4 pieces) come off at the same time, be careful not to lose them.

  • Page 34: Disassembly Of Deck Mechanism

    SA-AK240GCP 10.16. Disassembly of Deck Mechanism · Follow the (Step 1) - (Step 2) of Item 10.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 10.6 - Disassembly of CD Changer Unit · Follow the (Step 1) - (Step 4) of Item 10.10 - Disassembly of Front Panel Unit ·...
  • Page 35 SA-AK240GCP Step 1 Release the catch, and then remove the pinch roller (F). Step 2 Release 2 claws and detach the head block connector. Step 3 Remove 2 screws. Step 4 Remove head block. 10.16.2. Disassembly of capstan motor ass’y, capstan belt A, capstan belt B and winding belt Step 1 Detach the head block connector (Deck P.C.B.).
  • Page 36 SA-AK240GCP Step 7 Put the capstan belt A temporarily as shown below. Step 2 Put the winding belt on the pulley temporarily. Step 3 Install the flywheel F. Step 4 Put the winding belt on the flywheel F. Step 5 Install the winding lever and spring while pressing the winding arm in the direction of arrow.
  • Page 37 SA-AK240GCP Step 10 Install 3 screws. Step 11 Put the capstan belt B as shown below. Step 12 Put the capstan belt A on the motor ass’y pulley.

  • Page 38: Replacement For Cassette Lid

    SA-AK240GCP 10.17. Replacement for cassette lid · Follow the (Step 1) - (Step 2) of Item 10.4 - Disassembly of Top Cabinet Step 1 Lift up the lever upward, open the cassette deck. (For Step 2 Push up the cassette lid (L/R) in the direction of arrow.

  • Page 39: Service Fixture And Tools

    SA-AK240GCP 11 Service Fixture and Tools Service Tools Extension FFC (A) Deck P.C.B. - Main P.C.B. REEX0485 (14 Pins) (B) Panel P.C.B. - Deck Mechanism P.C.B. REEX0484 (10 Pins) 12 Service Positions Note: For description of the disassembly procedures, see the Section 10.

  • Page 40: Checking And Repairing Of Transformer P.c.b

    SA-AK240GCP 12.2. Checking and Repairing of Transformer P.C.B.

  • Page 41: Checking And Repairing Of Panel, Deck & Deck Mechanism P.c.b

    SA-AK240GCP 12.3. Checking and Repairing of Panel, Deck & Deck Mechanism P.C.B.

  • Page 42: Checking And Repairing Of Power P.c.b

    SA-AK240GCP 12.4. Checking and Repairing of Power P.C.B.

  • Page 43: Adjustment Procedures

    SA-AK240GCP 13 Adjustment Procedures 13.1. Cassette Deck Section 13.1.2. Bias Voltage Check · Measurement Condition 1. Set the unit “AUX” position. − − − − Reverse-mode selector switch: 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and the unit to “REC” mode (use “l REC/STOP” key).

  • Page 44: Tuner Section

    SA-AK240GCP 13.2. Tuner Section This section include details on the alignment of AM-IF and AM RF adjustment. 13.2.1. AM-IF Alignment 1. Set up the equipments as shown in Fig. 5. 2. Select [TUNER] mode on selector and set to [AM] mode.

  • Page 45: Adjustment Point

    SA-AK240GCP Fig. 7 13.2.3. Adjustment Point Below is the locations of alignment points on the Main (Tuner) P.C.B.

  • Page 46: Voltage And Waveform Chart

    SA-AK240GCP 14 Voltage and Waveform Chart Note: Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
  • Page 47 SA-AK240GCP...

  • Page 48: Power P.c.b. & Transformer P.c.b

    SA-AK240GCP 14.2. Power P.C.B. & Transformer P.C.B.

  • Page 49: Waveform Chart

    SA-AK240GCP 14.3. Waveform Chart...
  • Page 50 SA-AK240GCP...

  • Page 51: Wiring Connection Diagram

    SA-AK240GCP 15 Wiring Connection Diagram FM ANT AM ANT H5104/ W5104 JK2601 CN5103 To Fan CN2810 TUNER PACK P.C.B POWER P.C.B MAIN P.C.B SOLDER SIDE TUNER PACK CN2801 SOLDER SIDE CN5102 BLACK CN2809 MOTOR CN2808 CN2805 JK5101 CN2806 CN2803 CN2951 30 .
  • Page 52 SA-AK240GCP...

  • Page 53: Block Diagram

    SA-AK240GCP 16 Block Diagram OPTICAL PICKUP SEMICONDUCTOR TOMAINBLOCK LASER Q7601 LASER POWER DRIVE X7201 PHOTO DETECTOR 69 67 68 51 53 52 54 NTEST2 NTEST NSRVMONON /RST TIMING MICRO COMPUTER TXTCK NRST DSL/PLL/VCO GENERATOR INTERFACE [DSLPLL] [GEN] [MCIF] TXTD AVDD2...
  • Page 54 SA-AK240GCP IC100 AN734 P.B E AMANT ALC/T FMANT Z2620 CF2601 CF2602 24(23) Q1 (RFAMP) Q2601 (DECK 1) P.B. HEAD 1(2) MIXER IF AMP 22(3) D2602 L2602 L2601 21(4) BUFFER 17(8) FROM POWER (DECK 2) FL6602 TRANSFORMER R/P HEAD FL DISPLAY...
  • Page 55 SA-AK240GCP IC2803 C1BB00001121 AUDIO SOUND PROCESSOR IC2804 3(4) IN-L2(R2) C0AABB000125 OP-AMP IC1001 Q2142(Q2242) Q2317 (Q AN7348S-E1 42(37) 2(6) P.B EQ/REC AMP/ L-OUT(R-OUT) CONTROL 1(7) MUTIN FILTER SWITCH ALC/TPS AMP 3(5) CONTR Q2411(Q2311) 24(23) (DECK 1) MUTING P.B. HEAD 1(2) CONTROL...
  • Page 56 SA-AK240GCP IC5301 IC2804 C0AABB000125 C1BA00000407 2-CH DIGITAL AMP Q2142(Q2242) OP-AMP Q2317 (Q2417) 2(6) CONTROL 1(7) MUTING IN1+ SWITCH FILTER FILTER 3(5) CONTROL Q2411(Q2311) MUTING CONTROL IN1- IN2+ IN2- Q2341 (Q2441) HP_L(R) HEADPHONE MUTING Q5154 PCONT/EFP_/CE PCONT 8(16) MODE VDDP1(2) SWITCH...

  • Page 57: Schematic Diagram

    SA-AK240GCP 17 Schematic Diagram (All schematic diagrams may be modified at any time with the development of the new technology) 17.1. Notes of Schematic Diagrams S951 : MODE Switch S952 : HALF Switch S971 : MODE Switch S972 : HALF Switch...
  • Page 58 SA-AK240GCP...

  • Page 59: A) Cd Servo Circuit

    SDRCK W7001 DVSS1 IC7002 BA5948FPE2 4 CH DRIVE C7234 0.1 C7352 C7339 0.018 0.018 C7235 R7336 16V10 W7027 R7339 R7330 5.6K R7335 C7338 C7315 0.056 0.47 R7332 S7201 REST SW R7323 R7315 3.3K R7331 3.3K R7325 SA-AK240GCP CD SERVO CIRCUIT...
  • Page 60 SA-AK240GCP...

  • Page 61: B) Main (Tuner) Circuit

    100P C2633 C2612 R2616 0.01 TGND C2610 IC2602 R2632 0.01 C1CB00001937 MAIN R2633 PLL FREQUENCY SYNTHESIZER CIRCUIT R2652 DO/ST (2A) ON SCHEMATIC +7.5V DIAGRAM-3 C2634 R2638 3.3K MAIN CIRCUIT PLLDA (2B) ON R2630 DO/ST SCHEMATIC PLLCLK DIAGRAM-3 SA-AK240GCP MAIN(TUNER) CIRCUIT...
  • Page 62 SA-AK240GCP...

  • Page 63: B) Main Circuit

    : +B SIGNAL : FM/AM SIGNAL LINE : TAPE RECORD SIGNAL LINE : CD SIGNAL LINE MAIN CIRCUIT : TAPE PLAYBACK SIGNAL LINE : -B SIGNAL : MAIN SIGNAL LINE SA-AK240GCP MAIN CIRCUIT C2263 R2161 R2261 4.7K W2511 R2701 R2301...
  • Page 64 SA-AK240GCP SA-AK240GCP MAIN CIRCUIT W2511 C2701 0.01 R2701 C2702 16V100 C2705 50V1 R2705 3.3K Q2142 B1ABCF000176 R2702 AGC CONTROL SWITCH C2315 R2315 R2316 16V22 2.2K R2145 R2146 Q2311,Q2411 B1ABGC000005 MUTING SWITCH F_HOP C2321 R2321 R2329 T-GND R2311 C2311 R2314 C2312...
  • Page 65 CONTROL SWITCH W2555 W2525 W2534 Q2937 B1GBCFJJ0051 R2936 W2556 CHANGER PLUNGER ON/OFF SWITCH Q2937 SA-AK240GCP MAIN CIRCUIT W2560 R2251 R2151 6 7 8 9 11 12 13 14 15 29 28 CN2806 CN2805 TO CRS1 PANEL CIRCUIT (CN6601) ON SCHEMATIC DIAGRAM-4...
  • Page 66 330K C2821 D2803 C2802 D2801 R2882 100P X2802 B0ACCK000005 50V2.2 C2882 B0ACCK000005 X2801 H2B100500004 H0A327200115 W2552 Q2936 W2559 R2937 W2555 W2556 R2936 Q2937 SA-AK240GCP MAIN CIRCUIT W2560 2 13 14 15 29 28 CN2806 PANEL CIRCUIT (CN6601) ON SCHEMATIC DIAGRAM-4...

  • Page 67: C) Panel Circuit

    C6553 C6551 C6552 25V220 0.01 0.01 0.01 R6481 R6505 L6501 Q6501 C6507 Q6502 330K C6504 1000P C6503 C6509 R6509 C6506 0.047 C6501 R6501 R6503 0.01 0.01 C6481 JK6501 50V22 VR6511 EVUF2AF15B14 C6505 R6506 0.047 2.2K MIC VOLUME SA-AK240GCP PANEL CIRCUIT...
  • Page 68 SA-AK240GCP...

  • Page 69: D) Transformer Circuit

    VOLTAGE REGULATOR ERZV10V511CS JK5950 D5962 C5964 0.01 R5954 AC IN 820K 110-127V/220-240V Q5954 50/60Hz R5952 D5969 B1AAGC000007 4.7K B0AAFK000004 D5968 B0AAFK000004 C5953 0.01 Q5952 D5964 C5952 R5958 B0BA6R800008 10V47 C5963 C5954 R5957 0.01 50V4.7 Q5952 B1GACFJJ0018 SYNCHRONISATION SWITCH SA-AK240GCP TRANSFORMER CIRCUIT...
  • Page 70 SA-AK240GCP...

  • Page 71: E) Power Circuit

    SA-AK240GCP 17.7. (E) Power Circuit SCHEMATIC DIAGRAM - 6 POWER CIRCUIT : -B SIGNAL LINE : +B SIGNAL LINE : MAIN SIGNAL LINE SA-AK240GCP POWER CIRCUIT IC5301 IC5301 C1BA00000407 2-CH DIGITAL AMP Q5154 2SB0709AHL R5154 PCONT SWITCH R5153 Q5173 B1ABCF000176...
  • Page 72 D5128,D5124,D5123 R5134 C5111 35V1000 100P R5106 6.3V100 B0EAKM000122 1.2K R5132 C5158 R5131 C5113 D5109 Q5109 0.01 2.2K R5109 50V33 B0BA01100004 2SB0709AHL VOLTAGE REGULATOR R5130 Q5114 R5105 B1ABCF000176 R5110 11V REGULATOR D5103 2.2K B0BA3R900006 C5112 D5108 25V10 B0BA5R700008 SA-AK240GCP POWER CIRCUIT...

  • Page 73: F) Deck Circuit & (G) Deck Mechanism Circuit

    Q1003 C1010 C1016 C1017 B1AAGC000007 CN971 25V100 2200P 2200P PHOTO_T S952 HALF SWITCHING R953 (RECH) HALF STBY_5V VREF_GND R1003 D1003 R1102 Q1007 S951 B0ACCK000005 MODE C1026 R1011 6.3V47 8.2K C1008 50V1 Q1007 B1ABCF000176 SA-AK240GCP DECK MECHANISM CIRCUIT BIAS OSC CONTROL...
  • Page 74 SA-AK240GCP...

  • Page 75: Printed Circuit Board

    SA-AK240GCP 18 Printed Circuit Board Note: Circuit board diagrams may be modified at any time with the development of new technology.

  • Page 76: A) Cd Servo P.c.b

    SA-AK240GCP 18.1. (A) CD Servo P.C.B. CD SERVO P.C.B (REPX0494A) TP51(RF) C7227 W7014 TP19 C7225 C7204 TP14 W7015 C7226 TP50 C7228 TP18 TP17 C7216 C7230 C7231 TP24 TP13 W7019 R7221 CN7002 C7233 W7006 TP16 C7232 W7007 R7111 W7008 R7254 IC7001...

  • Page 77: B) Main

    SA-AK240GCP 18.2. (B) Main P.C.B. MAIN P.C.B (REPX0516Q) Q2942 CN2810 C2941 C2948 W2573 (TO FAN) W2304 W2567 W2568 R2925 W2291 Q2907 W2565 Q2906 CN2805 R2942 W2290 R2943 W2293 Q2948 Q2949 K2904 C2945 R2948 W2288 R2945 CN2801 R2924 W2570 W2572 R2947...

  • Page 78: C) Panel P.c.b

    SA-AK240GCP 18.3. (C) Panel P.C.B. PANEL P.C.B (REPX0517E) S6103 D6458 OPEN/ R6102 CLOSE S6102 S6101 POWER SINGLE DISC CHANGE S6308 MULTI DISC S6104 CHANGE FL6602 W6007 W6402 CN6601 W6055 R6458 S6105 C6635 C6632 R6604 W6004 C6604 D6635 R6603 R6199 W6082...

  • Page 79: D) Transformer

    SA-AK240GCP 18.4. (D) Transformer P.C.B. TRANSFORMER P.C.B (REPX0518L) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B R5954 T5951 250V 3.15A K5901...AK240 (SUB TRANSFORMER) D5968 Q5950 C5953 J5955 R5952 Z5950 C5951 C5952 D5952 RL5950 C5954...

  • Page 80: E) Power

    SA-AK240GCP 18.5. (E) Power P.C.B. POWER P.C.B (REPX0533E) C5102 W5205 W5144 W5208 W5206 W5207 C5114 D5121 H5104/W5104 Q5201 K5511 Q5202 C5115 Q5108 K5512 W5119 W5200 W5197 W5121 D5101 W5122 W5142 C5332 C5330 W5143 C5106 C5152 C5107 C5187 X5201 Q5115 Q5110...
  • Page 81 SA-AK240GCP 18.6. (F) Deck P.C.B. , (G) Deck Mechanism P.C.B. & (H) Tuner Pack P.C.B. DECK P.C.B DECK MECHANISM P.C.B. TUNER PACK P.C.B (REP1999B) (REPX0331E) (REPX0321A) R1024 IC1004 C1006 C1009 R1027 CS1002 TO R/P HEAD TP10 Q1003 TP4 x J1002...
  • Page 82 SA-AK240GCP...

  • Page 83: Illustration Of Ics, Transistors And Diodes

    SA-AK240GCP 19 Illustration of ICs, Transistors and Diodes C1BA00000407 C1AA00000612 AN7348S-E1 (24P) C1BB00001121 (100P) C0JBAB000011 (14P) C2CBYY000053 (100P) C1BB00000962 (24P) C0HBB0000057 (44P) C1CB00001937 (20P) MN6627954MA (100P) 2SB0621AHA CNB13030R2AU (4P) B1AAKD000014 C0AABB000125 B1AACF000064 BA5948FPE2 B1AARC000003 B1ACKD000006 B1CECC000003 B1ADCF000001 B1CEGM000001 2SB0709AHL B1GDCFJJ0047...

  • Page 84: Terminal Function Of Ic's

    SA-AK240GCP 20 Terminal Function of IC's 20.1. IC7001 (MN6627954MA) Servo Processor,Digital Signal Processor/Digital filter and D/A Converter Pin No. Mark Function Pin No. Mark Function DRAM address signal O/P 11 IREF Reference I/P DRAM address signal O/P 9 PLLF PLL Loop Filter Terminal (Phase...

  • Page 85: Ic7002 (Ba5948Fpe2) Ic 4Ch Drive

    SA-AK240GCP 20.2. IC7002 (BA5948FPE2) IC 4CH Drive Pin No. Mark Function Pin No. Mark Function Motor Driver 92 Input Motor Drive (3) reverse - action output Turntable Motor Drive Signal (“L”:ON) Motor Drive (3) forward - action output Motor Drive (1) Input...
  • Page 86 SA-AK240GCP Pin No. Mark Function OPEN_SW Open_Sw for CRS1 CHG_CW CRS1 motor CW CHG_CCW CRS1 motor CCW ST_SW Stock_Sw for CRS1 PLAY_SW Play_Sw for CRS1 CHG_PLR Plunger for CRS1 BOTTOM_SW Bottom_SW for CRS1 UP_SENSOR UD-Sensor for CRS1 DECK2 DECK CONDITION INPUT 2...

  • Page 87: Exploded Views

    SA-AK240GCP 21 Exploded Views 21.1. Cabinet Parts Location...
  • Page 88 SA-AK240GCP...

  • Page 89: Deck Mechanism Parts Location (Raa4502-S)

    SA-AK240GCP 21.2. Deck Mechanism Parts Location (RAA4502-S)

  • Page 90: Packaging

    SA-AK240GCP 21.3. Packaging...

  • Page 91: Replacement Parts List

    SA-AK240GCP 22 Replacement Parts List Notes: · Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise (resistors), etc are used. When replacing any of these components, be sure to use only manufacturer’s specified parts shown in the parts list.
  • Page 92 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks RXQ0412-3 HEAD PANEL ASS’Y Q2341 B1ABGC000005 TRANSISTOR 133-1 RMB0405-1 FR ROD SPRING Q2411 B1ABGC000005 TRANSISTOR 133-2 RMM0132-1 FR ROD Q2417 B1ABGC000005...
  • Page 93 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks D2950 B0ACCK000005 DIODE S6306 EVQ21405RJ SW MUSIC PORT D5101 B0BA01100004 DIODE S6308 EVQ21405RJ SW MULTI DISC CHANGE D5102 B0BA02600018 DIODE S7201...
  • Page 94 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks FL6602 A2BD00000141 ERDS2TJ684T 680K 1/4W R952 ERDS2TJ821T 820 1/4W FUSES R953 ERDS2TJ393T 39K 1/4W R972 ERDS2TJ821T 820 1/4W K5D312BLA015 FUSE R973...
  • Page 95 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2183 ERJ3GEYJ102V 1K 1/16W R2444 D0GB330JA007 33 1/16W R2193 D0GB472JA041 4.7K 1/16W R2445 D0GB152JA007 1.5K 1/16W R2194 D0GB104JA007 100K 1/16W R2446 D0GB332JA007 3.3K 1/16W...
  • Page 96 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2705 D0GB332JA007 3.3K 1/16W R2937 ERJ3GEYJ103V 10K 1/16W R2706 D0GB332JA007 3.3K 1/16W R2939 D0GB473JA041 47K 1/16W R2801 ERJ3GEYJ103V 10K 1/16W R2940...
  • Page 97 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R5304 D0GB562JA007 5.6K 1/16W R7221 ERJ3GEYJ101V 100 1/16W R5305 ERG1SJ220E 22 1W R7253 ERJ3GEYJ100V 10 1/16W R5306 ERG1SJ220E 22 1W R7254...
  • Page 98 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks W2572 ERJ3GEY0R00V CHIP JUMPER C1017 F1H1H222A013 2200P 50V W2573 ERJ3GEY0R00V CHIP JUMPER C1018 F1H1H332A013 3300P 50V W2575 ERJ3GEY0R00V CHIP JUMPER C1019...
  • Page 99 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2263 ECA1HAK010XB 1 50V C2631 ECJ1VC1H151J 150P 50V C2271 F1H1A154A001 0.15 10V C2632 F1H1H102A219 1000P 50V C2272 ECJ1VB1A124K 0.12 10V C2633...
  • Page 100 SA-AK240GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C5157 F1H1H103A219 0.01 50V C6503 ECJ1VB1H473K 0.047 50V C5158 F1H1H103A219 0.01 50V C6504 ECJ1VB1H104K 0.1 50V C5159 F1H1H103A219 0.01 50V C6505 ECJ1VB1H473K 0.047 50V...

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