Panasonic SA-AK240P Service Manual
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Panasonic SA-AK240P 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
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
S/N 20dB (at 1000 kHz)
90 W per channel (3 Ω)
180 W
115 W per channel (3 Ω)
230 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)
560 µV/m
SA-AK240P
SA-AK240PC
Colour
(S)... Silver Type
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 (3") or 12 cm (5")]
(1) CD-Audio (CD-DA)
© 2006 Matsushita Electric Industrial Co. Ltd.. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MD0512470C1
CD Stereo System
Stereo, 3.5 mm (1/8") jack
100 mV, 4.7 kΩ
Stereo, 3.5 mm (1/8") jack
4 track, 2 channel
Solid permalloy head
Double gap ferrite head
DC servo motor
AC bias 100 kHz
AC erase 100 kHz
4.8 cm/s (1-7/8 ips)
35 Hz to 14 kHz
50 dB (A weighted)
0.18 % (WRMS)
Approx. 120 seconds with
C-60 cassette tape
Unauthorized
copying
A6
and

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Summary of Contents for Panasonic SA-AK240P

  • Page 1: Specifications

    ORDER NO. MD0512470C1 CD Stereo System SA-AK240P SA-AK240PC 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 Music Port input jack...

  • Page 2: Table Of Contents

    SA-AK240P / SA-AK240PC (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 MP3, WMA 32 kbps to 320 kbps (9-27/32”...
  • Page 3 SA-AK240P / SA-AK240PC 17 Schematic Diagram 18.5. (E) Power P.C.B. 17.1. Notes of Schematic Diagrams 18.6. (F) Deck P.C.B. & (G) Deck Mechanism P.C.B. 17.2. (A) CD Servo Circuit 19 Illustration of ICs, Transistors and Diodes 17.3. (B) Main (Tuner) Circuit 20 Terminal Function of IC's 17.4.

  • Page 4: Safety Precautions

    SA-AK240P / SA-AK240PC 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: Caution For Fuse Replacement

    SA-AK240P / SA-AK240PC 1.2. Caution for fuse replacement 1.3. Before repair and adjustment Disconnect AC power, discharge Power Capacitors C5101, C5104, C5171, C5172, C5920, C5940 and C5950 through a 10Ω, 5W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
  • Page 6 SA-AK240P / SA-AK240PC Caution Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 8. Minimize body motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to...

  • Page 7: Handling Precautions For Traverse Deck

    SA-AK240P / SA-AK240PC 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 8: Precaution Of Laser Diode

    SA-AK240P / SA-AK240PC 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.

  • Page 9: Handling The Lead-Free Solder

    SA-AK240P / SA-AK240PC 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 10: New Features

    SA-AK240P / SA-AK240PC 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 11 SA-AK240P / SA-AK240PC · 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 12: Music Port

    SA-AK240P / SA-AK240PC 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 13: Accessories

    SA-AK240P / SA-AK240PC 7 Accessories Remote Control FM Antenna Wire AC Cord AM Loop Antenna...

  • Page 14: Operating Instructions Procedures

    SA-AK240P / SA-AK240PC 8 Operating Instructions Procedures...
  • Page 15 SA-AK240P / SA-AK240PC...

  • Page 16: Self Diagnosis And Special Mode Setting

    SA-AK240P / SA-AK240PC 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...
  • Page 17 SA-AK240P / SA-AK240PC Item FL Display Key Operation Mode Name Description Front Key FL Display Test To check In doctor mode: segments display (All 1. Press [PROGRAM] button on remote segments will light up and control. LED will blink at 0.5...

  • Page 18: Error Code Table

    SA-AK240P / SA-AK240PC 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 19 SA-AK240P / SA-AK240PC 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 [...
  • Page 20 SA-AK240P / SA-AK240PC Error Code Diagnosis Contents Description of error Automatic FL Display Remarks ITOP UD assembly Rack does For CD changer unit (CRS1). move to front direction. Press [SINGLE CHANGE] on main unit This lead to UD base for next error.
  • Page 21 SA-AK240P / SA-AK240PC 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). open/close tray operation is performed, Press [SINGLE CHANGE] on main unit unit(s)) it fails to close.

  • Page 22: Assembling And Disassembling

    SA-AK240P / SA-AK240PC 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 23: Disassembly Flow Chart

    SA-AK240P / SA-AK240PC 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 24: Main Parts Location

    SA-AK240P / SA-AK240PC 10.3. Main Parts Location...

  • Page 25: Disassembly Of Top Cabinet

    SA-AK240P / SA-AK240PC 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 26 SA-AK240P / SA-AK240PC 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 27: Disassembly Of Main P.c.b

    SA-AK240P / SA-AK240PC 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 ·...

  • Page 28: Disassembly Of Power P.c.b

    SA-AK240P / SA-AK240PC 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 ·...

  • Page 29: Disassembly Of Front Panel Unit

    SA-AK240P / SA-AK240PC 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, Step 3 Release 2 claws outwards.

  • Page 30: Disassembly For Panel P.c.b

    SA-AK240P / SA-AK240PC 10.11. Disassembly for Panel 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 ·...

  • Page 31: Disassembly Of Deck Mechanism Unit

    SA-AK240P / SA-AK240PC 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 32 SA-AK240P / SA-AK240PC 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 33: Disassembly Of Optical Pickup Unit (Cd Mechanism)

    SA-AK240P / SA-AK240PC 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 34 SA-AK240P / SA-AK240PC 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 35: Disassembly Of Deck Mechanism

    SA-AK240P / SA-AK240PC 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 ·...
  • Page 36 SA-AK240P / SA-AK240PC 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 37 SA-AK240P / SA-AK240PC 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.

  • Page 38: Replacement For Cassette Lid

    SA-AK240P / SA-AK240PC 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 39 SA-AK240P / SA-AK240PC Step 2 Push the lever upward and open the cassette lid. Remove the cassette tape.

  • Page 40: Service Fixture And Tools

    SA-AK240P / SA-AK240PC 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 41: Checking And Repairing Of Transformer P.c.b

    SA-AK240P / SA-AK240PC 12.2. Checking and Repairing of Transformer P.C.B.

  • Page 42: Checking And Repairing Of Panel, Deck & Deck Mechanism P.c.b

    SA-AK240P / SA-AK240PC 12.3. Checking and Repairing of Panel, Deck & Deck Mechanism P.C.B.

  • Page 43: Checking And Repairing Of Power P.c.b

    SA-AK240P / SA-AK240PC 12.4. Checking and Repairing of Power P.C.B.

  • Page 44: Measurements And Adjustments

    SA-AK240P / SA-AK240PC 13 Measurements and Adjustments 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 −...

  • Page 45: Tuner Section

    SA-AK240P / SA-AK240PC 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 46: Adjustment Point

    SA-AK240P / SA-AK240PC Fig. 7 13.2.3. Adjustment Point Below is the locations of alignment points on the Main (Tuner) P.C.B.

  • Page 47: Voltage And Waveform Chart

    SA-AK240P / SA-AK240PC 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 48 SA-AK240P / SA-AK240PC...

  • Page 49: Power P.c.b. And Transformer P.c.b

    SA-AK240P / SA-AK240PC 14.2. Power P.C.B. and Transformer P.C.B.

  • Page 50: Waveform Chart

    SA-AK240P / SA-AK240PC 14.3. Waveform Chart...
  • Page 51 SA-AK240P / SA-AK240PC...

  • Page 52: Wiring Connection Diagram

    SA-AK240P / SA-AK240PC 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 CN2806 CN2803 CN2951 30 .

  • Page 53: Block Diagram

    SA-AK240P / SA-AK240PC 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 TXTCK /RST TIMING MICRO COMPUTER NRST DSL/PLL/VCO GENERATOR INTERFACE [DSLPLL] [GEN] [MCIF]...
  • Page 54 SA-AK240P / SA-AK240PC IC100 AN734 P.B E AMANT FMANT ALC/T Z2620 CF2601 CF2602 24(23) Q1 (RFAMP) Q2601 (DECK 1) P.B. HEAD 1(2) MIXER IF AMP 22(3) D2602 L2601 L2602 21(4) BUFFER 17(8) FROM POWER (DECK 2) FL6602 TRANSFORMER R/P HEAD...
  • Page 55 SA-AK240P / SA-AK240PC IC2803 C1BB00001121 AUDIO SOUND PROCESSOR IC2804 3(4) IN-L2(R2) C0AABB000125 Q2142(Q2242) OP-AMP IC1001 Q2317 (Q AN7348S-E1 42(37) 2(6) L-OUT(R-OUT) P.B EQ/REC AMP/ CONTROL 1(7) MUTIN SWITCH FILTER ALC/TPS AMP 3(5) CONTR Q2411(Q2311) 24(23) (DECK 1) MUTING P.B. HEAD...
  • Page 56 SA-AK240P / SA-AK240PC IC2804 IC5301 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 IN1- CONTROL IN2+ IN2- Q2341 (Q2441) HP_L(R) HEADPHONE MUTING Q5154 8(16) PCONT/EFP_/CE PCONT VDDP1(2)

  • Page 57: Schematic Diagram

    SA-AK240P / SA-AK240PC 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...
  • Page 58 SA-AK240P / SA-AK240PC...

  • 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-AK240P/PC CD SERVO CIRCUIT...
  • Page 60 SA-AK240P / SA-AK240PC...

  • Page 61: B) Main (Tuner) Circuit

    SA-AK240P / SA-AK240PC 17.3. (B) Main (Tuner) Circuit SCHEMATIC DIAGRAM - 2 : +B SIGNAL LINE : FM SIGNAL LINE : AM SIGNAL LINE : FM/AM SIGNAL LINE : FM OSC SIGNAL LINE : AM OSC SIGNAL LINE MAIN(TUNER) CIRCUIT...
  • Page 62 SA-AK240P / SA-AK240PC...

  • Page 63: B) Main Circuit

    SA-AK240P / SA-AK240PC 17.4. (B) Main Circuit SCHEMATIC DIAGRAM - 3 : +B SIGNAL : FM/AM SIGNAL LINE : TAPE RECORD SIGNAL LINE : CD SIGNAL LINE MAIN CIRCUIT : -B SIGNAL : MAIN SIGNAL LINE : TAPE PLAYBACK SIGNAL LINE...
  • Page 64 SA-AK240P / SA-AK240PC SA-AK240P/PC 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...
  • Page 65 SA-AK240P / SA-AK240PC W2526 R2121 R2221 3.3K 3.3K R2674 R2675 TUNER RCH 4.7K MAIN PLLCE PLLCE_UP CIRCUIT TUNER LCH IC2871 (1B) ON PLL_DA E-EPROM IC PLL_DA SCHEMATIC (NOT SUPPLIED) TUNER DQ/ST R2676 STIDO DIAGRAM-2 PLL_CLK PLL CLK IC2871 TUNER SD...
  • Page 66 SA-AK240P / SA-AK240PC W2526 F_HOP T_GND C2940 IC2871 MUTE-D-AMP E-EPROM IC (NOT SUPPLIED) R2940 +15V 820K IC2871 Q2942 B1ACKD000006 EE_CS FAN MOTOR ON/OFF SWITCH TO FAN MOT_12V EE_CLK EE.DAT CN2810 SW5V SW5V R2945 C2945 C2944 16V47 100P -VCC +15V +15V...

  • Page 67: C) Panel Circuit

    SA-AK240P / SA-AK240PC 17.5. (C) Panel Circuit SCHEMATIC DIAGRAM - 4 TRANSFORMER CIRCUIT (CN5951) PANEL CIRCUIT ON SCHEMATIC DIAGRAM-5 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE H6555/W6555 1 2 3 4 5 6 GND2 GND3...
  • Page 68 SA-AK240P / SA-AK240PC...

  • Page 69: D) Transformer Circuit

    SA-AK240P / SA-AK240PC 17.6. (D) Transformer Circuit SCHEMATIC DIAGRAM - 5 TRANSFORMER CIRCUIT : +B SIGNAL LINE : -B SIGNAL LINE FP5940 D5950-D5953 B0EAMM000038 VCC+ D5950 D5952 VCC- C5960 POWER FP5920 CIRCUIT C5920 C5940 AC GND D5953 D5951 (H5104/W5104) 50V1000...
  • Page 70 SA-AK240P / SA-AK240PC...

  • Page 71: E) Power Circuit

    SA-AK240P / SA-AK240PC 17.7. (E) Power Circuit SCHEMATIC DIAGRAM - 6 POWER CIRCUIT : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE SA-AK240P/PC POWER CIRCUIT IC5301 IC5301 C1BA00000407 2-CH DIGITAL AMP Q5154 2SB0709AHL R5154 PCONT SWITCH R5153...
  • Page 72 SA-AK240P / SA-AK240PC C5305 C5302 330P 330P R5308 R5307 C5339 C5340 C5301 C5303 0.47 0.47 0.47 0.47 L5301 G0C220Z00002 R5301 5.6K C5333 C5331 C5330 C5332 220P 220P 220P 220P R5303 R5304 R5302 R5305 R5306 W5507 C5327 5.6K C5324 5.6K 5.6K 0.68...

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

    Q1003 B1AAGC000007 C1010 C1016 C1017 CN971 25V100 2200P 2200P PHOTO_T R953 S952 HALF SWITCHING (RECH) HALF STBY_5V VREF_GND R1003 D1003 R1102 Q1007 S951 B0ACCK000005 MODE C1026 R1011 6.3V47 8.2K C1008 50V1 Q1007 B1ABCF000176 SA-AK240P/PC DECK MECHANISM CIRCUIT BIAS OSC CONTROL...
  • Page 74 SA-AK240P / SA-AK240PC...

  • Page 75: Printed Circuit Board

    SA-AK240P / SA-AK240PC 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

    SA-AK240P / SA-AK240PC 18.1. (A) CD Servo P.C.B. CD SERVO P.C.B (REPX0494A) TP51(RF) C7227 W7014 TP19 C7204 C7225 TP14 C7226 W7015 TP50 C7228 TP18 TP17 C7216 C7230 C7231 TP24 TP13 W7019 R7221 CN7002 C7233 W7006 TP16 C7232 W7007 R7111 W7008...

  • Page 77: B) Main

    SA-AK240P / SA-AK240PC 18.2. (B) Main P.C.B. MAIN P.C.B (REPX0516J) Q2942 CN2810 C2941 C2948 W2573 W2304 (TO FAN) W2567 W2568 R2925 W2291 Q2907 Q2906 W2565 W2290 CN2805 R2942 R2943 W2293 Q2948 Q2949 K2904 C2945 R2948 W2288 R2945 CN2801 R2924 W2570...

  • Page 78: C) Panel

    SA-AK240P / SA-AK240PC 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...

  • Page 79: D) Transformer P.c.b

    SA-AK240P / SA-AK240PC 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...

  • Page 80: E) Power

    SA-AK240P / SA-AK240PC 18.5. (E) Power P.C.B. POWER P.C.B (REPX0533B) C5102 W5205 W5144 W5206 W5207 W5208 D5121 C5114 H5104/W5104 Q5201 K5511 Q5202 C5115 Q5108 K5512 W5119 W5200 W5197 W5121 D5101 W5122 W5142 C5332 C5330 W5143 C5106 C5152 C5107 X5201 C5187...

  • Page 81: F) Deck P.c.b. & (G) Deck Mechanism P.c.b

    SA-AK240P / SA-AK240PC 18.6. (F) Deck P.C.B. & (G) Deck Mechanism 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 L1002 TP3 x...
  • Page 82 SA-AK240P / SA-AK240PC...

  • Page 83: Illustration Of Ics, Transistors And Diodes

    SA-AK240P / SA-AK240PC 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...

  • Page 84: Terminal Function Of Ic's

    SA-AK240P / SA-AK240PC 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...

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

    SA-AK240P / SA-AK240PC 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...
  • Page 86 SA-AK240P / SA-AK240PC 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...

  • Page 87: Exploded Views

    SA-AK240P / SA-AK240PC 21 Exploded Views...
  • Page 88 SA-AK240P / SA-AK240PC...

  • Page 89: Cabinet Parts Location

    SA-AK240P / SA-AK240PC 21.1. Cabinet Parts Location...
  • Page 90 SA-AK240P / SA-AK240PC...

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

    SA-AK240P / SA-AK240PC 21.2. Deck Mechanism Parts Location (RAA4502-S)
  • Page 92 SA-AK240P / SA-AK240PC...

  • Page 93: Packaging

    SA-AK240P / SA-AK240PC 21.3. Packaging...
  • Page 94 SA-AK240P / SA-AK240PC...

  • Page 95: Replacement Parts List

    SA-AK240P / SA-AK240PC 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.
  • Page 96 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks RXL0126 WINDING ARM ASS’Y Q2317 B1ABGC000005 TRANSISTOR RXQ0412-3 HEAD PANEL ASS’Y Q2341 B1ABGC000005 TRANSISTOR 133-1 RMB0405-1 FR ROD SPRING...
  • Page 97 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks D5102 B0BA02600018 DIODE CN971 K1MN10B00104 10P FFC CONNECTOR D5103 B0BA3R900006 DIODE CN1001 K1MN14B00058 14P FFC CONNECTOR D5104 B0BA01100004 DIODE...
  • Page 98 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R1009 D0GB183JA007 18K 1/16W EYF52BCY FUSE CLIP R1010 D0GB183JA007 18K 1/16W EYF52BCY FUSE CLIP R1011 ERJ3GEYJ822V 8.2K 1/16W R1012 D0GB472JA041 4.7K 1/16W...
  • Page 99 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2251 ERJ3GEY0R00V 0 1/16W R2604 ERJ3GEYJ102V 1K 1/16W R2271 D0GB153JA007 15K 1/16W R2605 D0GB471JA041 470 1/16W R2273 D0GB472JA041 4.7K 1/16W...
  • Page 100 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2848 D0GB101JA007 100 1/16W R2966 D0GB472JA041 4.7K 1/16W R2849 ERJ3GEYJ102V 1K 1/16W R5101 ERJ3GEYJ103V 10K 1/16W R2851 D0GB473JA041 47K 1/16W...
  • Page 101 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R6107 D0GB472JA041 4.7K 1/16W W2518 ERJ3GEY0R00V CHIP JUMPER R6108 ERJ3GEYJ682V 6.8K 1/16W W2520 ERJ3GEY0R00V CHIP JUMPER R6109 ERJ3GEYJ103V 10K 1/16W...
  • Page 102 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks W7016 ERJ3GEY0R00V CHIP JUMPER C2114 ERJ3GEY0R00V 0 1/16W W7017 ERJ3GEY0R00V CHIP JUMPER C2121 F1H1H332A013 3300P 50V W7018 ERJ3GEY0R00V CHIP JUMPER...
  • Page 103 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2444 ECJ1VB1A474K 0.47 10V C2901 F1H1C104A041 0.1 16V C2509 ECA1CAK330XB 33 16V C2903 F1H1H103A219 0.01 50V C2511 ECEA1HKN2R2B 2.2 50V...
  • Page 104 SA-AK240P / SA-AK240PC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C5328 ECJ1VB1H104K 0.1 50V C7244 ECJ1VB1C153K 0.015 16V C5329 ERJ3GEY0R00V 0 1/16W C7253 ECJ1VB1H471K 470P 50V C5330 F1H2A221A009 220P 100V...

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