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Panasonic SA-AK240PL 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
FTC Output power
THD 10%, both channels driven
100 Hz to 10 kHz
Total FTC power
RMS Output Power
THD 10%, both channels driven
1 kHz
Total output power
PMPO
n FM/AM TUNER, TERMINALS SECTION
Preset station
Frequency Modulation (FM)
Frequency range
Sensitivity
S/N 26dB
Antenna terminals
Amplitude Modulation (AM)
Frequency range
Sensitivity
90 W per channel (3 Ω)
180 W
115 W per channel (3 Ω)
230 W
2500 W
FM 15 stations
AM 15 stations
87.9 to 107.9 MHz (200 kHz
steps)
87.5 to 108.0 MHz (100 kHz
steps)
4.0 µV (IHF)
2.2 µV
75 Ω (unbalanced)
520 to 1710 kHz (10 kHz step)
SA-AK240PL
Colour
(S)... Silver Type
S/N 20dB (at 1000 kHz)
Music Port input jack
Terminal
Sensitivity
Phone jack
Terminal
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]
© 2006 Matsushita Electric Industrial Co. Ltd.. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MD0512481C3
CD Stereo System
Stereo, 3.5 mm jack
100 mV, 4.7 kΩ
Stereo, 3.5 mm jack
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
560 µV/m
4.8 cm/s
and

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Summary of Contents for Panasonic SA-AK240PL

  • Page 1: Specifications

    ORDER NO. MD0512481C3 CD Stereo System SA-AK240PL 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 S/N 20dB (at 1000 kHz) 560 µV/m...

  • Page 2: Table Of Contents

    SA-AK240PL (1) CD-Audio (CD-DA) Power supply AC 120 V, 60Hz (2) CD-R/RW (CD-DA, MP3, WMA formatted disc) Power consumption 100 W (3) MP3/WMA Power consumption in standby 0.28 W mode Bit rate Dimensions (W x H x D) 250 x 330 x 343 mm...
  • Page 3 SA-AK240PL 17.3. (B) Main (Tuner) Circuit 18.6. (F) Deck P.C.B. , (G) Deck Mechanism P.C.B. & (H) Tuner 17.4. (B) Main Circuit Pack P.C.B. 17.5. (C) Panel Circuit 19 Illustration of ICs, Transistors and Diodes 17.6. (D) Transformer Circuit 20 Terminal Function of IC's 17.7.

  • Page 4: Safety Precautions

    SA-AK240PL 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 Electrostatically Sensitive (Es) Devices

    SA-AK240PL 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. 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by electricity.

  • Page 6: Handling Precautions For Traverse Deck

    SA-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL · 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-AK240PL 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-AK240PL 7 Accessories Remote Control FM Antenna Wire AC Cord AM Loop Antenna...

  • Page 13: Operating Instructions Procedures

    SA-AK240PL 8 Operating Instructions Procedures...
  • Page 14 SA-AK240PL...

  • Page 15: Self Diagnosis And Special Mode Setting

    SA-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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, unit(s)) it fails to close. It will for next error.

  • Page 21: Assembling And Disassembling

    SA-AK240PL 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-AK240PL 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-AK240PL 10.3. Main Parts Location...

  • Page 24: Disassembly Of Top Cabinet

    SA-AK240PL 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-AK240PL 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 10.14 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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: Replacement For Cassette Lid

    SA-AK240PL 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. 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.
  • Page 38 SA-AK240PL Step 2 Push the lever upward and open the cassette lid. Remove the cassette tape.

  • Page 39: Service Fixture And Tools

    SA-AK240PL 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-AK240PL 12.2. Checking and Repairing of Transformer P.C.B.

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

    SA-AK240PL 12.3. Checking and Repairing of Panel, Deck & Deck Mechanism P.C.B.

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

    SA-AK240PL 12.4. Checking and Repairing of Power P.C.B.

  • Page 43: Adjustment Procedures

    SA-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL...

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

    SA-AK240PL 14.2. Power P.C.B. & Transformer P.C.B.

  • Page 49: Waveform Chart

    SA-AK240PL 14.3. Waveform Chart...
  • Page 50 SA-AK240PL...

  • Page 51: Wiring Connection Diagram

    SA-AK240PL 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-AK240PL...

  • Page 53: Block Diagram

    SA-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL IC2804 IC5301 C0AABB000125 C1BA00000407 OP-AMP 2-CH DIGITAL AMP Q2142(Q2242) Q2317 (Q2417) 2(6) CONTROL 1(7) MUTING FILTER FILTER IN1+ SWITCH 3(5) CONTROL Q2411(Q2311) MUTING IN1- CONTROL IN2+ IN2- Q2341 (Q2441) HP_L(R) HEADPHONE MUTING Q5154 PCONT/EFP_/CE PCONT 8(16) VDDP1(2) MODE SWITCH...

  • Page 57: Schematic Diagram

    SA-AK240PL 17 Schematic Diagram (All schematic diagrams may be modified at any time with the Caution ! development of the new technology) 17.1. Notes of Schematic Diagrams S951 : MODE Switch S952 : HALF Switch S971 : MODE Switch S972...
  • Page 58 SA-AK240PL...

  • 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-AK240PL CD SERVO CIRCUIT...
  • Page 60 SA-AK240PL...

  • 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-AK240PL MAIN(TUNER) CIRCUIT...
  • Page 62 SA-AK240PL...

  • 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-AK240PL MAIN CIRCUIT W2511 R2701 R2301 C2101 Q2142 B1ABCF000176 R2702...
  • Page 64 SA-AK240PL SA-AK240PL 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 W2510 MUTING SWITCH F_HOP C2321 R2321 R2329 T-GND R2311 C2311 R2314...
  • Page 65 CONTROL SWITCH W2555 W2525 W2534 Q2937 B1GBCFJJ0051 R2936 W2556 CHANGER PLUNGER ON/OFF SWITCH Q2937 SA-AK240PL MAIN CIRCUIT W2560 R2251 R2151 6 7 8 9 11 12 13 14 15 29 28 CN2806 CN2805 TO CRS1 ( CN1) PANEL CIRCUIT (CN6601) ON...
  • Page 66 IDCDET RESET (MICRO-P) SWITCH R2883 C2883 R2886 R2881 C2803 330K C2821 D2803 C2802 D2801 R2882 100P X2802 B0ACCK000005 50V2.2 B0ACCK000005 X2801 C2882 H2B100500004 H0A327200115 W2552 R2937 R2936 W2556 SA-AK240PL MAIN CIRCUIT 29 28 CN2806 PANEL CIRCUIT (CN6601) ON SCHEMATIC DIAGRAM-4...

  • Page 67: C) Panel Circuit

    R6754 1.5K 1.5K C6636 100P C6623 50V22 PA_GND C6752 C6751 C6753 0.01 R6753 0.01 0.01 PA_IN_R R6751 PA_IN_L 3.3K PA_SW 3.3K GND2 JK6751 Z6481 B3RAB0000025 JK6551 REMOTE SENSOR C6553 C6551 C6552 0.01 0.01 0.01 R6481 C6481 50V22 SA-AK240PL PANEL CIRCUIT...
  • Page 68 SA-AK240PL...

  • Page 69: D) Transformer Circuit

    C5951 RTP1H3E002 Z5950 CN5951 0.01 VOLTAGE REGULATOR ERZV10V511CS JK5950 D5962 AC IN 120V60Hz R5952 4.7K L5950 ELF15N035AN C5953 R5953 0.01 C5962 25V47 Q5952 D5964 C5952 R5958 B0BA6R800008 10V47 C5963 C5954 R5957 0.01 50V4.7 Q5952 B1GACFJJ0018 SYNCHRONISATION SWITCH SA-AK240PL TRANSFORMER CIRCUIT...
  • Page 70 SA-AK240PL...

  • Page 71: E) Power Circuit

    SA-AK240PL 17.7. (E) Power Circuit SCHEMATIC DIAGRAM - 6 POWER CIRCUIT : -B SIGNAL LINE : +B SIGNAL LINE : MAIN SIGNAL LINE SA-AK240PL 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-AK240PL 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-AK240PL DECK MECHANISM CIRCUIT BIAS OSC CONTROL...
  • Page 74 SA-AK240PL...

  • Page 75: Printed Circuit Board

    SA-AK240PL 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-AK240PL 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-AK240PL 18.2. (B) Main P.C.B. MAIN P.C.B (REPX0516K) 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-AK240PL 18.3. (C) Panel P.C.B. PANEL P.C.B (REPX0517D) 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-AK240PL 18.4. (D) Transformer P.C.B. TRANSFORMER P.C.B (REPX0518F) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B T5951 125V 3.15A (SUB TRANSFORMER) K5902...AK240 L5950 Q5950 C5953 J5955 R5952 Z5950 C5951 C5952 D5952 RL5950 C5954 JK5950...

  • Page 80: E) Power P.c.b

    SA-AK240PL 18.5. (E) Power P.C.B. POWER P.C.B (REPX0533B) 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-AK240PL 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-AK240PL...

  • Page 83: Illustration Of Ics, Transistors And Diodes

    SA-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 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-AK240PL 21 Exploded Views...
  • Page 88 SA-AK240PL...

  • Page 89: Cabinet Parts Location

    SA-AK240PL 21.1. Cabinet Parts Location...
  • Page 90 SA-AK240PL...

  • Page 91: Deck Mechanism Parts Location (Raa4502-S)

    SA-AK240PL 21.2. Deck Mechanism Parts Location (RAA4502-S)
  • Page 92 SA-AK240PL...

  • Page 93: Packaging

    SA-AK240PL 21.3. Packaging...
  • Page 94 SA-AK240PL...

  • Page 95: Replacement Parts List

    SA-AK240PL 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 96 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks 133-1 RMB0405-1 FR ROD SPRING Q2411 B1ABGC000005 TRANSISTOR 133-2 RMM0132-1 FR ROD Q2417 B1ABGC000005 TRANSISTOR REM0121 CAP MOTOR ASS’Y Q2441 B1ABGC000005...
  • Page 97 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks D5104 B0BA01100004 DIODE CN2801 K1MN17AA0004 17P CONNECTOR D5105 B0BA02400029 DIODE CN2803 K1MN14A00049 14P FFC CONNECTOR D5107 B0BA01500003 DIODE CN2805 K1MN14A00049 14P FFC CONNECTOR...
  • Page 98 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks EYF52BCY FUSE CLIP R1013 D0GB472JA041 4.7K 1/16W R1014 D0GB472JA041 4.7K 1/16W FUSE PROTECTORS R1015 D0GB470JA008 47 1/16W R1016 D0GB470JA008 47 1/16W...
  • Page 99 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2282 ERJ3GEY0R00V 0 1/16W R2610 ERJ3GEYJ102V 1K 1/16W R2283 D0GB104JA007 100K 1/16W R2611 D0GB391JA041 390 1/16W R2301 D0GB153JA007 15K 1/16W R2612...
  • Page 100 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2853 D0GB101JA007 100 1/16W R5106 D0GB223JA041 22K 1/16W R2854 D0GB473JA041 47K 1/16W R5107 D0GB561JA007 560 1/16W R2855 D0GB473JA041 47K 1/16W R5108...
  • Page 101 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R6199 ERJ3GEYJ103V 10K 1/16W W2525 ERJ3GEY0R00V CHIP JUMPER R6202 ERJ3GEYJ102V 1K 1/16W W2526 ERJ3GEY0R00V CHIP JUMPER R6203 D0GB222JA041 2.2K 1/16W W2530...
  • Page 102 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks W7018 ERJ3GEY0R00V CHIP JUMPER C2122 ECJ1VB1C105K 1 16V W7019 ERJ3GEY0R00V CHIP JUMPER C2124 ERJ3GEY0R00V 0 1/16W W7020 ERJ3GEY0R00V CHIP JUMPER C2131...
  • Page 103 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2511 ECEA1HKN2R2B 2.2 50V C2904 ECA1CAK101XB 100 16V C2581 ECA1CAK101XB 100 16V C2906 F1H1H102A219 1000P 50V C2582 ECA1CAK101XB 100 16V C2910...
  • Page 104 SA-AK240PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C5330 F1H2A221A009 220P 100V C7263 ECJ1VB1C104K 0.1 16V C5331 F1H2A221A009 220P 100V C7264 ECJ1VB1C104K 0.1 16V C5332 F1H2A221A009 220P 100V C7315 ECJ1VB1A474K 0.47 10V...

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