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Panasonic SA-AK640E 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%,
1 kHz
(Low channel-both channels driven)
10 kHz
(High channel-both channels driven)
60 Hz
(Subwoofer channel)
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)
90 W per channel (3 Ω)
90 W per channel (3 Ω)
180 W (8 Ω)
FM 15 stations
AM 15 stations
87.50 to 108.00 MHz (50 kHz steps)
4.0 µV (IHF)
75 Ω (unbalanced)
522 to 1629 kHz (9 kHz step)
560 µV/m
SA-AK640E
SA-AK640EB
SA-AK640EG
Colour
(S)... Silver Type
Music Port input jack
Terminal
Sensitivity
Phone jack
Terminal
n CASSETTE DECK SECTION
Track system
Heads
Record/playback
Erasure
Motor
540 W
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
2.2 µV
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
distribution is a violation of law.
ORDER NO. MD0601012C2
CD Stereo System
Stereo, 3.5 mm jack
Stereo, 3.5 mm jack
4 track, 2 channel
Solid permalloy head
Double gap ferrite head
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
reserved.
Unauthorized
100 mV, 4.7 kΩ
DC servo motor
4.8 cm/s
copying
and

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Summary of Contents for Panasonic SA-AK640E

  • Page 1: Specifications

    ORDER NO. MD0601012C2 CD Stereo System SA-AK640E SA-AK640EB SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG Bit rate Mass 7.1 kg MP3, WMA 32 kbps to 320 kbps Operating temperature range +5 to +35°C Sampling frequency Operating humidity range 5 to 90% RH (no condensation) MP3/WMA 32 kHz, 44.1 kHz, 48 kHz...
  • Page 3 SA-AK640E / SA-AK640EB / SA-AK640EG 14 Voltage and Waveform Chart 18.2. (B) Main P.C.B. 14.1. CD Servo P.C.B. & Main P.C.B. 18.3. (C) Panel P.C.B. 14.2. Power P.C.B. & Transformer P.C.B. 18.4. (D) Transformer P.C.B. 14.3. Waveform Chart 18.5. (E) Power P.C.B.

  • Page 4: Safety Precautions

    SA-AK640E / SA-AK640EB / SA-AK640EG 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 Ac Mains Lead

    SA-AK640E / SA-AK640EB / SA-AK640EG 1.2. Caution for AC Mains Lead 1.3. Before repair and adjustment Disconnect AC power, discharge Power Capacitors C5101, C5104, C5171, C5172, C5920, C5940 and C5950 through a 10Ω, 5W...

  • Page 6: Protection Circuitry

    SA-AK640E / SA-AK640EB / SA-AK640EG 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 240V, 50 Hz in NO SIGNAL mode (volume min at CD mode) should be ~ 350mA.

  • Page 7: Handling Precautions For Traverse Deck

    SA-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 4 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.

  • Page 9: Handling The Lead-Free Solder

    SA-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG · 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 7 Accessories Remote Control FM Antenna Wire AC Cord (For E/EG only) AC Cord (For EB only) AM Loop Antenna Antenna Adaptor (For EB only)

  • Page 14: Operating Instructions Procedures

    SA-AK640E / SA-AK640EB / SA-AK640EG 8 Operating Instructions Procedures...
  • Page 15 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 16: Self Diagnosis And Special Mode Setting

    SA-AK640E / SA-AK640EB / SA-AK640EG 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...
  • Page 17 SA-AK640E / SA-AK640EB / SA-AK640EG 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...

  • Page 18: Error Code Table

    SA-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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...
  • Page 20 SA-AK640E / SA-AK640EB / SA-AK640EG Error Code Diagnosis Contents Description of error Automatic FL Display Remarks ITOP UD assembly UD Rack does not move For CD changer unit (CRS1). Press [SINGLE CHANGE] on main unit to front direction. This lead to UD base not for next error.
  • Page 21 SA-AK640E / SA-AK640EB / SA-AK640EG Error Code Diagnosis Contents Description of error Automatic FL Display Remarks SRVC_TRV To unlock the 1. All trays For CD changer unit (CRS1). traverse unit for “STOCK” position Press [SINGLE CHANGE] on main unit. service 2.

  • Page 22: Assembling And Disassembling

    SA-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 10.3. Main Parts Location...

  • Page 25: Disassembly Of Top Cabinet

    SA-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG Step 2 Detach the FFC cables (CN2801 & CN2805). Step 4 Lift the CD changer unit upwards to remove it. · Disassembly of Mecha Chassis Step 3 Release the claws on both ends. Step 5 Remove 2 screws.

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

    SA-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 36: Disassembly Of Deck Mechanism

    SA-AK640E / SA-AK640EB / SA-AK640EG 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 37 SA-AK640E / SA-AK640EB / SA-AK640EG Step 6 Remove the flywheel R. Step 7 Release the claw and remove the winding lever and spring. [Installation of the belt] Step 1 The boss and marking should be positioned horizontally. Step 2 Put the winding belt on the pulley temporarily.

  • Page 38: Replacement For Cassette Lid

    SA-AK640E / SA-AK640EB / SA-AK640EG tighten screws. Step 7 Put the capstan belt A temporarily as shown below. Step 10 Install 3 screws. Step 11 Put the capstan belt B as shown below. Step 8 Put the capstan belt B on the motor ass’y pulley.

  • Page 39: Rectification For Tape Jam Problem

    SA-AK640E / SA-AK640EB / SA-AK640EG Step 2 Push up the cassette lid (L/R) in the direction of arrow. (For DECK1 and DECK2). 10.18. Rectification for tape jam problem · Follow the (Step 1) - (Step 2) of Item 10.4 - Disassembly of Top Cabinet...

  • Page 40: Service Fixture And Tools

    SA-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 12.2. Checking and Repairing of Transformer P.C.B.

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

    SA-AK640E / SA-AK640EB / SA-AK640EG 12.3. Checking and Repairing of Panel, Deck & Deck Mechanism P.C.B.

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

    SA-AK640E / SA-AK640EB / SA-AK640EG 12.4. Checking and Repairing of Power P.C.B.

  • Page 44: Adjustment Procedures

    SA-AK640E / SA-AK640EB / SA-AK640EG 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”...

  • Page 45: Tuner Section

    SA-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG 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-AK640E / SA-AK640EB / SA-AK640EG...

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

    SA-AK640E / SA-AK640EB / SA-AK640EG 14.2. Power P.C.B. & Transformer P.C.B.

  • Page 50: Waveform Chart

    SA-AK640E / SA-AK640EB / SA-AK640EG 14.3. Waveform Chart...
  • Page 51 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 52: Wiring Connection Diagram

    SA-AK640E / SA-AK640EB / SA-AK640EG 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 CN2801 TUNER PACK SOLDER SIDE CN5102 BLACK CN2809 MOTOR CN2808 CN2805...

  • Page 53: Block Diagram

    SA-AK640E / SA-AK640EB / SA-AK640EG 16 Block Diagram OPTICAL PICKUP TOMAINBLOCK SEMICONDUCTOR 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]...
  • Page 54 SA-AK640E / SA-AK640EB / SA-AK640EG IC1001 AN7348 P.B EQ AMANT FMANT ALC/T Z2620 CF2601 CF2602 24(23) RF AMP 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...
  • Page 55 SA-AK640E / SA-AK640EB / SA-AK640EG IC2803 C1BB00001121 AUDIO SOUND PROCESSOR IC2804 3(4) IN-L2(R2) C0AABB000125 IC OP-AMP IC1001 Q2142(Q2242) Q2317 (Q2417) AN7348S-E1 42(37) 2(6) P.B EQ/REC AMP/ L-OUT(R-OUT) CONTROL 1(7) MUTING FILTER SWITCH ALC/TPS AMP 3(5) CONTROL Q2411(Q2311) 24(23) (DECK 1) MUTING P.B.
  • Page 56 SA-AK640E / SA-AK640EB / SA-AK640EG IC5301 IC5401 IC5501 C1BA00000407 C1BA00000407 C1BA00000407 0125 2-CH DIGITAL AMP 2-CH DIGITAL AMP 2-CH DIGITAL AMP Q2317 (Q2417) 1(7) MUTING FILTER IN1+ IN1+ IN1+ CONTROL IN1- IN1- IN1- IN2+ IN2+ IN2+ 0244 -AMP IN2- IN2-...

  • Page 57: Schematic Diagram

    SA-AK640E / SA-AK640EB / SA-AK640EG 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 Note: S951 : MODE Switch S952 : HALF Switch S971 : MODE Switch...
  • Page 58 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 59: A) Cd Servo Circuit

    SA-AK640E / SA-AK640EB / SA-AK640EG 17.2. (A) CD Servo Circuit SCHEMATIC DIAGRAM - 1 OPTICAL CD SERVO CIRCUIT PICKUP CIRCUIT : +B SIGNAL LINE : CD-DA SIGNAL LINE : CD SIGNAL LINE W7022 W7020 LASER DIODE CP701 R7601 W7006 C7601...
  • Page 60 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 61: B) Main (Tuner) Circuit

    SA-AK640E / SA-AK640EB / SA-AK640EG 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...
  • Page 62 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 63: B) Main Circuit

    SA-AK640E / SA-AK640EB / SA-AK640EG 17.4. (B) Main Circuit SCHEMATIC DIAGRAM - 3 : +B SIGNAL : FM/AM SIGNAL LINE : TAPE RECORD SIGNAL LINE : CD SIGNAL LINE MAIN CIRCUIT : TAPE PLAYBACK SIGNAL LINE : -B SIGNAL : MAIN SIGNAL LINE...
  • Page 64 SA-AK640E / SA-AK640EB / SA-AK640EG SA-AK640E/EB/EG MAIN CIRCUIT W2511 C2701 0.01 R2701 C2702 16V100 C2705 50V1 R2705 3.3K Q2142 B1ABCF000176 R2702 AGC CONTROL SWITCH C2315 C2331 R2315 R2316 R2335 6800P 16V22 6.8K 2.2K R2145 R2146 Q2311,Q2411 B1ABGC000005 C2333 R2331 W2510...
  • Page 65 SA-AK640E / SA-AK640EB / SA-AK640EG 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 PLL_DA E-EPROM IC (NOT SUPPLIED) SCHEMATIC TUNER DQ/ST R2676 STIDO DIAGRAM-2 PLL CLK PLL_CLK IC2871...
  • Page 66 SA-AK640E / SA-AK640EB / SA-AK640EG 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...

  • Page 67: C) Panel Circuit

    SA-AK640E / SA-AK640EB / SA-AK640EG 17.5. (C) Panel Circuit SCHEMATIC DIAGRAM - 4 TRANSFORMER CIRCUIT (CN5951) ON SCHEMATIC DIAGRAM-5 PANEL CIRCUIT : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE H6555/W6555 GND2 SYNC PCONT SYS6V R6302 S6302...
  • Page 68 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 69: D) Transformer Circuit

    SA-AK640E / SA-AK640EB / SA-AK640EG 17.6. (D) Transformer Circuit SCHEMATIC DIAGRAM - 5 TRANSFORMER CIRCUIT : +B SIGNAL LINE : -B SIGNAL LINE D5970-D5973 B0EAMM000038 D5970 D5972 D5973 D5971 FP5940 D5950-D5953 B0EAMM000038 VCC+ D5950 D5952 VCC- C5960 POWER C5920 C5940...
  • Page 70 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 71: H) Power Circuit

    SA-AK640E / SA-AK640EB / SA-AK640EG 17.7. (H) Power Circuit SCHEMATIC DIAGRAM - 6 POWER CIRCUIT : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE SA-AK640E/EB/EG POWER CIRCUIT SA-AK640E/E IC5301 IC5401 IC5501 C1BA00000407 C1BA00000407 C1BA00000407 2-CH DIGITAL AMP...
  • Page 72 SA-AK640E / SA-AK640EB / SA-AK640EG : -B SIGNAL LINE : MAIN SIGNAL LINE ER CIRCUIT SA-AK640E/EB/EG POWER CIRCUIT IC5301 IC5401 IC5501 C1BA00000407 C1BA00000407 C1BA00000407 2-CH DIGITAL AMP 2-CH DIGITAL AMP 2-CH DIGITAL AMP R5418 R5519 R5520 R5419 R5140 R5142 R5522...
  • Page 73 SA-AK640E / SA-AK640EB / SA-AK640EG C5405 330P C5505 330P C5305 C5302 C5402 C5502 330P 330P R5308 330P R5408 330P W5505 R5307 R5407 C5304 C5306 C5301 C5303 C5404 C5406 C5401 C5403 C5506 C5504 C5501 C5503 0.47 0.47 0.47 0.47 0.47 0.47 0.47...
  • Page 74 SA-AK640E / SA-AK640EB / SA-AK640EG C5405 330P C5505 330P C5305 C5302 C5402 C5502 330P 330P R5308 330P R5408 330P R5508 W5505 R5307 R5407 R5507 C5306 C5301 C5303 C5404 C5406 C5401 C5403 C5506 C5504 C5501 C5503 0.47 0.47 0.47 0.47 0.47 0.47...

  • Page 75: F) Deck Circuit & (G) Deck Mechanism Circuit

    SA-AK640E / SA-AK640EB / SA-AK640EG 17.8. (F) Deck Circuit & (G) Deck Mechanism Circuit SCHEMATIC DIAGRAM - 7 MAIN CIRCUIT (CN2803) ON : +B SIGNAL : PLAYBACK SIGNAL SCHEMATIC DIAGRAM-3 DECK CIRCUIT : RECORD SIGNAL LINE CN1001 C1038 R1055 C1057...
  • Page 76 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 77: Printed Circuit Board

    SA-AK640E / SA-AK640EB / SA-AK640EG 18 Printed Circuit Board Note: Circuit board diagrams may be modified at any time with the development of new technology.

  • Page 78: A) Cd Servo P.c.b

    SA-AK640E / SA-AK640EB / SA-AK640EG 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...

  • Page 79: B) Main P.c.b

    SA-AK640E / SA-AK640EB / SA-AK640EG 18.2. (B) Main P.C.B. MAIN P.C.B (REPX0516W) Q2942 CN2810 C2964 C2941 C2948 W2573 W2304 (TO FAN) C2971 W2567 W2568 R2925 W2291 L2962 L2961 Q2907 R2964 W2565 Q2906 CN2805 R2942 W2290 R2963 W2293 R2943 Q2948 Q2949...

  • Page 80: C) Panel P.c.b

    SA-AK640E / SA-AK640EB / SA-AK640EG 18.3. (C) Panel P.C.B. PANEL P.C.B (REPX0517L) S6103 D6458 OPEN/ R6102 CLOSE S6102 S6101 POWER SINGLE DISC CHANGE S6104 S6308 MULTI DISC CHANGE W6007 W6402 CN6601 W6055 S6105 C6635 W6074 S6307 R6604 C6632 SUBWOOFER C6604...

  • Page 81: D) Transformer P.c.b

    SA-AK640E / SA-AK640EB / SA-AK640EG 18.4. (D) Transformer P.C.B. TRANSFORMER P.C.B (REPX0518Q) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B T5951 250V 2.5A SUB TRANSFORMER L5950 C5953 Q5950 J5955 R5952 D5972 Z5950 C5951 D5986...

  • Page 82: E) Power P.c.b

    SA-AK640E / SA-AK640EB / SA-AK640EG 18.5. (E) Power P.C.B. POWER P.C.B (REPX0533C) C5102 W5205 W5144 W5206 W5207 W5208 C5114 D5121 H5104/W5104 K5511 Q5201 C5115 Q5108 K5512 W5119 Q5202 W5200 W5197 W5121 D5101 W5122 C5332 C5330 W5143 W5142 C5106 C5152 C5107...

  • Page 83: F) Deck P.c.b. & (G) Deck Mechanism P.c.b

    SA-AK640E / SA-AK640EB / SA-AK640EG 18.6. (F) Deck P.C.B. & (G) Deck Mechanism P.C.B. DECK P.C.B DECK MECHANISM P.C.B. (REPX0331G) (REPX0321A) R1024 IC1004 C1006 C1009 R1027 CS1002 TO R/P HEAD TP10 Q1003 TP4 x J1002 L1002 TP3 x TP11 R1004...
  • Page 84 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 85: Illustration Of Ics, Transistors And Diodes

    SA-AK640E / SA-AK640EB / SA-AK640EG 19 Illustration of ICs, Transistors and Diodes C1BA00000407 C1AA00000612 AN7348S-E1 (24P) C1BB00001121 (100P) C0JBAB000011 (14P) C2CBYY000066 (100P) C1BB00000987 (16P) C0HBB0000039 (44P) C1BB00000962 (24P) MN6627954MA (100P) C1CB00001937 (20P) 2SB0621AHA CNB13030R2AU (4P) B1AAKD000014 C0AABB000125 C0ABBB000244 (8P) BA5948FPE2...

  • Page 86: Terminal Function Of Ic's

    SA-AK640E / SA-AK640EB / SA-AK640EG 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 87: Ic7002 (Ba5948Fpe2) Ic 4Ch Drive

    SA-AK640E / SA-AK640EB / SA-AK640EG 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...
  • Page 88 SA-AK640E / SA-AK640EB / SA-AK640EG 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...

  • Page 89: Exploded Views

    SA-AK640E / SA-AK640EB / SA-AK640EG 21 Exploded Views...
  • Page 90 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 91: Cabinet Parts Location

    SA-AK640E / SA-AK640EB / SA-AK640EG 21.1. Cabinet Parts Location...
  • Page 92 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 93: Deck Mechanism Parts Location (Raa4502-S)

    SA-AK640E / SA-AK640EB / SA-AK640EG 21.2. Deck Mechanism Parts Location (RAA4502-S)
  • Page 94 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 95: Packaging

    SA-AK640E / SA-AK640EB / SA-AK640EG 21.3. Packaging...
  • Page 96 SA-AK640E / SA-AK640EB / SA-AK640EG...

  • Page 97: Replacement Parts List

    SA-AK640E / SA-AK640EB / SA-AK640EG 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 98 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks RMB0404 BRAKE ROD SPRING IC5401 C1BA00000407 IC 2-CH DIGITAL AMP RMB0406-5 FR LEVER SPRING IC5501 C1BA00000407 IC 2-CH DIGITAL AMP...
  • Page 99 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks QR6457 B1GBCFLL0037 CHIP TRANSISTOR VR6491 EVEKE2F3524B VR VOLUME JOG QR6459 B1GBCFLL0037 CHIP TRANSISTOR SWITCHES DIODES S951 K0J1BB000017...
  • Page 100 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks L5503 J0JKB0000037 FILTER JK6551 K2HC103A0024 JK HP L5601 G0B9R5K00001 COIL JK6751 K2HC1YYA0002 JK MUSIC PORT L5602 G0B9R5K00001...
  • Page 101 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R1050 ERJ3GEY0R00V 0 1/16W R2333 D0GB153JA007 15K 1/16W R1055 D0GB222JA041 2.2K 1/16W R2334 ERJ3GEY0R00V 0 1/16W R1057 D0GB222JA041 2.2K 1/16W...
  • Page 102 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2584 D0GB334JA007 330K 1/16W R2819 D0GB104JA007 100K 1/16W R2585 D0GB334JA007 330K 1/16W R2820 D0GB104JA007 100K 1/16W R2586 ERJ3GEYJ122V 1.2K 1/16W...
  • Page 103 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2947 D0AF270JA039 27 1/4W R5305 ERG1SJ220E 22 1W R2948 D0GB101JA007 100 1/16W R5306 ERG1SJ220E 22 1W R2949...
  • Page 104 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R6493 ERJ3GEYJ103V 10K 1/16W W2547 ERJ3GEY0R00V CHIP JUMPER R6601 D0GB471JA041 470 1/16W W2548 ERJ3GEY0R00V CHIP JUMPER R6602...
  • Page 105 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C1006 ECA1HAK010XB 1 50V C2222 ECJ1VB1C105K 1 16V C1007 F0A2A472A034 4700P 100V C2224 ERJ3GEY0R00V 0 1/16W C1008...
  • Page 106 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2603 F1H1H103A219 0.01 50V C2947 ECA0JAK101XB 100 6.3V C2604 F1H1H102A219 1000P 50V C2948 ECA1AAK221XB 220 10V C2606...
  • Page 107 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C5319 ECJ1VB1H153K 0.015 50V C5519 ECJ1VB1H153K 0.015 50V C5320 ECJ1VB1H104K 0.1 50V C5520 ECJ1VB1H104K 0.1 50V C5321 F1K2A1040007 0.1 100V...
  • Page 108 SA-AK640E / SA-AK640EB / SA-AK640EG Ref. No. Part No. Part Name & Description Remarks C7231 F2A0J221A200 220P 6.3V C7232 F2A0J221A200 220P 6.3V C7233 ECJ1VF1C104Z 0.1 16V C7234 ECJ1VB1C104K 0.1 16V C7235 ECEA1CKA100I 10 16V C7241 ECJ1VB1H102K 1000P 50V C7243 ECJ1VF1C104Z 0.1 16V...

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