Panasonic SA-AK230PL Service Manual
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Panasonic SA-AK230PL Service Manual

Panasonic SA-AK230PL Service Manual

Cd stereo system
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Specifications

n AMPLIFIER SECTION
RMS output power
THD 10%, both channels driven
1 kHz
Total RMS power
PMPO
FTC output power
THD 10%, both channels driven
100 Hz - 10 kHz
Total FTC power
n FM/AM TUNER, TERMINALS SECTION
Preset station
Frequency Modulation (FM)
Frequency range
Sensitivity
S/N 26 dB
Antenna terminal(s)
Amplitude Modulation (AM)
Frequency range
Sensitivity
S/N 20 dB (at 1000 kHz)
Audio performance (Amplifier)
Input sensitivity/Input impedance
100 W per channel (5 Ω)
200 W
2000 W
69 W per channel (5 Ω)
138 W
FM 15 stations
AM 15 stations
87.9 - 107.9 MHz (200 kHz steps)
87.5 - 108.0 MHz (100 kHz steps)
2.5 µV (IHF)
2.2 µV
75 Ω (unbalanced)
520 - 1710 kHz (10 kHz steps)
560 µV/m
SA-AK230PL
Colour
(S)... Silver Type
Aux
Phone jack
Terminal
n CASSETTE DECK SECTION
Track system
Heads
Record/playback
Erasure
Motor
Recording system
Erasing system
Tape speed
Overall frequency response (+3 dB, -6 dB at DECK OUT)
NORMAL
S/N
Wow and flutter
Fast forward and rewind time
n DISC SECTION
Discs played [8 cm or 12 cm]
(1) CD-Audio (CD-DA)
(2) CD-R/RW (CD-DA, MP3 formatted discs)
(3) MP3
Bit rate
MP3
Sampling frequency
© 2004 Matsushita Electric Industrial Co. Ltd.. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MD0411548C3
CD Stereo System
250 mV,14.7 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 - 14 kHz
50 dB (A weighted)
0.18 % (WRMS)
Approx. 120 seconds with
C-60 cassette tape
32 kbps - 320 kbps
Unauthorized
copying
4.8 cm/s
and

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Summary of Contents for Panasonic SA-AK230PL

  • Page 1: Specifications

    ORDER NO. MD0411548C3 CD Stereo System SA-AK230PL Colour (S)... Silver Type Specifications n AMPLIFIER SECTION 250 mV,14.7 kΩ RMS output power Phone jack THD 10%, both channels driven Terminal Stereo, 3.5 mm jack 100 W per channel (5 Ω) 1 kHz...

  • Page 2: Table Of Contents

    SA-AK230PL 32 kHz, 44.1 kHz, 48 kHz Power consumption in standby 0.34 W mode 44.1 kHz Dimensions (W x H x D) 250 x 330 x 341 mm Decoding 16 bit linear Mass 6.9 kg Digital filter 8 fs Operating temperature range +5 to +35°C...
  • Page 3 SA-AK230PL 16.5. (D) Transformer Circuit, (E) CD Detect Circuit, (F) Spindle 20 Terminal Function of IC Position Circuit & (G) CD Loading Circuit 20.1. IC7002 (MN6627953HB) Servo processor/ Digital signal 16.6. (H) Power Circuit processor/ Digital filter/ D/A converter 16.7. (I) Deck Circuit & (J) Deck Mechanism Circuit 20.2.

  • Page 4: Before Repair And Adjustment

    SA-AK230PL 1 Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C5820 and C5840 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 5: Handling The Lead-Free Solder

    SA-AK230PL 4 Handling the Lead-free Solder 4.1. 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 6: Handling Precautions For Traverse Deck

    SA-AK230PL 5 Handling Precautions For Traverse Deck The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).

  • Page 7: Precaution Of Laser Diode

    SA-AK230PL 6 Precaution of Laser Diode CAUTION: This unit utilizes a class 1 laser. 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 pick up lens.

  • Page 8: Accessories

    SA-AK230PL 7 Accessories Remote Control FM Antenna AC Cord AM Loop Antenna...

  • Page 9: Operation Procedures

    SA-AK230PL 8 Operation Procedures...
  • Page 10 SA-AK230PL...

  • Page 11: Disassembly And Assembly Of Main Component

    SA-AK230PL 9 Disassembly and Assembly of Main Component “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.

  • Page 12: Gear For Servicing (Jig) Information

    SA-AK230PL 9.2. Gear for servicing (jig) Information 1. This unit has a gear which is used for checking items (Open/Close of disc tray, up/down operation of traverse unit by manually) when servicing. 2. For preparation of gear (for servicing), perform the procedures as follows.

  • Page 13: Disassembly Of Top Cabinet

    SA-AK230PL 9.3. Disassembly of Top Cabinet Step 1 Remove 2 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 and remove the top cabinet.
  • Page 14 SA-AK230PL Step 2 Release the 2 claws, and then remove the CD lid cover. Step 6 Press the POWER button to turn the power off. · [Opening the disc tray manually (Using service tools)] Step 3 Repeat Step 2 but rotate the gear tools in anti-clockwise direction.

  • Page 15: Disassembly Of Rear Panel

    SA-AK230PL 9.5. Disassembly of Rear Panel · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet Step 1 Remove 6 screws and disconnect wire CN2810 (Fan) at rear cabinet as shown. 9.6. Disassembly of CD Mechanism Unit ·...

  • Page 16: Disassembly Of Main P.c.b

    SA-AK230PL 9.7. Disassembly of Main P.C.B. · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid · Follow the (Step 1) of Item 9.5 - Disassembly of Rear Panel ·...

  • Page 17: Disassembly Of Transformer P.c.b

    SA-AK230PL · Replacement of the Power Amplifier IC/ Voltage Regulator Step 1 Remove 2 screws fixed to the Power Amplifier IC and 1 Step 3 Unsolder the terminals of Power Amp IC, transistor and screw to Voltage Regulator. replace the components.

  • Page 18: Disassembly Of Front Panel Unit

    SA-AK230PL 9.10. Disassembly of Front Panel Unit · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid · Follow the (Step 1) of Item 9.5 - Disassembly of Rear Panel ·...

  • Page 19: Cd Mechanism Main Component Replacement Procedures

    SA-AK230PL Step 7 Unsolder the motor terminals. Step 8 Remove Deck Mechanism P.C.B. 9.12. CD Mechanism Main Component Replacement Procedures · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid ·...
  • Page 20 SA-AK230PL Step 6 Lift up the traverse deck ass’y. Step 10 Remove the FFC board from the connector, and then remove the CD Servo P.C.B. Step 7 Remove the traverse deck ass’y from the timing lever. Caution: When removing or inserting the traverse deck avoid touching the OPU lens and pressing onto the turntable.
  • Page 21 SA-AK230PL Note: Step 1 Install the traverse deck ass’y to the timing lever. Be careful not to lose the 3 floating spring because those will Step 2 Align the boss of traverse deck ass’y with the slot of also be removed on removal of the traverse deck ass’y.
  • Page 22 SA-AK230PL Step 5 With pressing the claw (B) in the direction of arrow (1), force the connection lever in the direction of arrow (2). 9.12.2. Replacement for the Disc Tray Step 1 Remove 4 screws. Step 2 Remove the upper plate.
  • Page 23 SA-AK230PL Step 2 Holding the drive rack not to move, install the disc tray. Step 8 Release the both claws, and then draw the disc tray. Step 3 Align the drive rack with the drive gear. Step 9 With forcing the left guide bar manually because the left NOTE: guide bar interfers with claw, draw the disc tray.
  • Page 24 SA-AK230PL 9.12.3. Disassembly and reassembly for mechanism base drive unit Step 1 Remove 3 screws. Step 2 Release the claw, and then remove the gear holder. Step 3 Remove the belt and change gear spring. NOTE: Step 6 Install the tray lock spring to hook temporary.
  • Page 25 SA-AK230PL Step 11 Lift up the left end of spindle base unit in the direction of arrow (1), and then remove the unit in the direction of arrow (2). Step 9 Pressing the claw (B) in the direction of arrow (1), force the connection lever in the direction of arrow (2).
  • Page 26 SA-AK230PL Step 3 Rotate the disc lever in the direction of arrow (1), draw the disc lever. Step 13 Remove the traverse relay gear, traverse cam gear and drive gear. [Dissassembly/reassembly for the spindle base unit] Step 1 Draw the 5 disc spacers.
  • Page 27 SA-AK230PL NOTE: Hold the loading stopper ass’y manually bacause it is flipped by spring. Step 8 Release the 2 claws, and then remove the relay gear A. Step 9 Release the 2 claws, and then remove the spindle shaft. Step 6 Remove the cushion spring.
  • Page 28 SA-AK230PL spread the hold bars of loading stopper and remove the UP/DOWN base. [Installation for loading stopper ass’y] Step 1 Align the claw of loading stoppers ass’y with the slot of spindle base. (Caution should be exercised when alignment of claw due to the size of claws.)
  • Page 29 SA-AK230PL Step 1 Install the traverse cam gear. Step 2 Rotate the traverse cam gear to the direction of arrow. Step 4 Install the slide plate 2 to the mechanism base, and Step 3 Install the drive gear and traverse relay gear.
  • Page 30 SA-AK230PL Step 7 Move the slide plate 1 to forward fully. Step 8 Install the rear lock. (The claw should be latched.) Step 9 Install the Spindle Position P.C.B.. (The claw should be latched.) Step 10 Install the tray lock. (The claw should be latched.) Step 11 Remove the tray lock spring from hook,and then latch to the tray lock.
  • Page 31 SA-AK230PL Step 14 Install the tray base, traverse ass’y, mechanism cover and upper plate. [Operation check after servicing] Check the proper operation of following items with gear and hexagonal screwdriver. 1. Open/close of tray base. 2. Moving the tray base to the stock side.

  • Page 32: Replacement For The Pinch Roller Ass And Head Block

    SA-AK230PL 9.13. Replacement for the pinch roller ass’y and head block · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid ·...
  • Page 33 SA-AK230PL Step 5 Remove the flywheel R. Step 6 Release the claw of tape side, and then remove the winding lever and spring. Step 7 Remove the flywheel F. [Installation of the belt] Step 1 The boss and marking should be positioned horizontally.
  • Page 34 SA-AK230PL Step 7 Put the capstan belt A temporarily as shown below. Step 10 Remove 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. Step 12 Put the capstan belt A on the motor ass’y pulley.

  • Page 35: Replacement For The Cassette Lid Ass

    SA-AK230PL 9.15. Replacement for the cassette lid ass’y · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet Step 1 Lift up the lever upward, open the cassette lid ass’y. (For DECK1 and DECK2) Step 2 Push up the cassette lid ass’y in the direction of arrow.

  • Page 36: Rectification For Tape Jam Problem

    SA-AK230PL 9.16. Rectification for tape jam problem · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet Step 1 If a cassette tape cannot be removed from the deck (the tape is caught by the capstan or pinch roller during playback or recording), rotate the flywheel F in the direction of the arrow to remove it.

  • Page 37: Checking For Major P.c.bs

    SA-AK230PL 10 Checking for major P.C.Bs Note: Checking of all major P.C.Bs (Main P.C.B., Panel P.C.B., Transformer P.C.B., Deck P.C.B., Deck Mechanism P.C.B. and Power P.C.B.) can be carried out using below procedures. For the disassembling procedure, refer Section 9.

  • Page 38: Checking Of Transformer P.c.b

    SA-AK230PL 10.2. Checking of Transformer P.C.B. 1. Remove Top Cabinet and Rear Panel. 2. Remove CD Lid. 3. Disassemble CD Mechanism Unit. 4. Connect FFC wires (CN2801 & CN2805) from CD Mechanism Unit.

  • Page 39: Checking Of Panel, Deck & Deck Mechanism P.c.b

    SA-AK230PL 10.3. Checking of Panel, Deck & Deck Mechanism P.C.B. 1. Remove Top Cabinet. 2. Remove CD Lid. 3. Disassemble CD Mechanism Unit. 4. Remove volume knob at Front Panel Unit. 5. Disassemble Panel P.C.B. 6. Disassemble Deck Mechanism Unit.

  • Page 40: Checking Of Power P.c.b

    SA-AK230PL 10.4. Checking of Power P.C.B. 1. Remove Top Cabinet and Rear Panel. 2. Remove CD Lid. 3. Disassemble CD Mechanism Unit. 4. Remove 3 screws at Transformer P.C.B.. 5. Remove 2 screws at heat sink and 1 screw at Power P.C.B.

  • Page 41: Self-Diagnostic Function

    SA-AK230PL 11 Self-Diagnostic Function 11.1. Self-diagnostic display This unit is equipped with a self-diagnostic display function which, will display an error code corresponding to the problem occuring. Use this function when performing checking maintenance on the unit. 11.2. How to enter the Self-Diagnostic Function 11.3.

  • Page 42: To Clear All Error Code

    SA-AK230PL 3. Press to close the tray. 4. Press “CD DIRECT PLAY (5)” and wait until the tray is open. 5. Press and remove the CD. 6. Press to close the tray. 7. Press “n/STOP” to indicate Error Code. · If several problem exist, error code will change each time when “n/STOP” is pressed. (e.g. F15 → F26 → F16 ..etc).
  • Page 43 SA-AK230PL 11.8.3. Power supply related error detection Abnormal Items Error Display Method of Detection POWER AMP output abnormal During normal operation, if DCDET becomes ‘L’, normal POWER OFF process shall not be executed, PCNT shall be switched to ‘L’ immediately. GOODBYE shall not be displayed and the error display F61 will be displayed instead.

  • Page 44: Cd Test Mode Function

    SA-AK230PL 12 CD Test Mode Function This CD test mode is provided to check CD unit without connecting to changer loading mechanism. This mode shall operate CD PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display.

  • Page 45: Micon Rom Checksum And Version Display Mode

    SA-AK230PL · It shall move up one counter when the above operations ends. The counter will reset to 00000 when 99999 is reached. · To exit CD aging test mode, press button, the tray will return to its PLAY position and power will be off.

  • Page 46: Measurements And Adjustments

    SA-AK230PL 13 Measurements and Adjustments 13.1. Cassette Deck Section standard value. Bias voltage for Deck 2 14±4mV (Normal) · Measurement Condition Erase voltage for Deck 2 80mV (Normal) − − − − Make sure head, capstan and press roller are clean.

  • Page 47: Alignment Points

    SA-AK230PL 9. Set AM-SG to 520kHz. 10. Receive 520kHz in the unit. 11. Adjust L2602 (OSC) so that the EVM-DC value is with 1.1±0.5V. Fig.6 13.2.2. AM RF Adjustment 1. Connect the instrument as shown in Fig. 7. 2. Set the unit to AM mode.

  • Page 48: Block Diagram

    SA-AK230PL 14 Block Diagram OPTICAL PICKUP SEMICONDUCTOR LASER Q7601 LASER POWER DRIVE PHOTO DETECTOR IC7003 AN8739SBTE2 FOCUS COIL/TRACKING COIL/ TRAVERSE MOTOR/ SPINDLE MOTOR DRIVE /RST RESET SIGNAL GENERATOR FOCUS FOCUS COIL COIL DRIVE TRACKING COIL TRACKING COIL DRIVE TRAVERSE M7301...
  • Page 49 SA-AK230PL TO MAIN BLOCK X7201 NTEST IOMODE CD_RST NRST TXTCK MICRO COMPUTER TIMING GENERATOR DSL/PLL/VCO INTERFACE TXTD DQSY (SBCK) RFVDD EFM DEMODULATION SUBCODE (SUBC) VREF SPINDLE SYNC INTERPOLATION INTERFACE SERVO CIRC ECC (TXNCLDCK) CDROM ECC A, B, C, D, E, F...
  • Page 50 SA-AK230PL FM ANT Z2620 AM ANT CF2601 CF2602 Q2601 Q1 (RF AMP) MIXER IF AMP BUFFER D2602 L2602 L2601 (FM) DECODER RM AMP BUFFER PILOT PHASE CANCEL STEREO LEVEL S-CURVE SWITCH AM/FM COMP BUFFER TUNING DRIVE PILOT IC2601 LA1833NMNTLM X2602...
  • Page 51 SA-AK230PL FL6601 FROM POWER FL DISPLAY TRANSFORMER 21, 23, 24, 3, 5~10, 12, 13, 26~40 15, 16, 18, 19 11~14, 16~29 1, 2, 30~40 IC6601 C0HBB0000044 FL DRIVER C0GAM0000005 MOTOR DRIVE OUT1 OUT2 POWER SUPPLY CONTROL PLLDA Q2907 STAT SWITCH...
  • Page 52 SA-AK230PL IC1001 AN7348S-E1 P.B EQ/REC AMP/ ALC/TPS AMP 24(23) (DECK 1) P.B. HEAD 1(2) 20(5) 22(3) 21(4) 17(8) (DECK 2) R/P HEAD 18(7) LOGIC L/H NOR/CrO & HI/LO LOGIC RIPPLE LOGIC REJECTION REC/PB Q2978 REC:ON/OFF CONTROL/ SWITCH (DECK 2) ERASE HEAD...
  • Page 53 SA-AK230PL IC2804 7(8) B1(2) C0AABA000009 DUAL OP-AMP 22(21) 2(6) OUT1(2) 1(7) FILTER 3(5) 5(6) A1(2) Q2142 (Q2242) 2(4) IC2803 CONTROL FILTER SEL1(2) C1BB00000732 AUDIO SOUND 32(31) PROCESSOR REC1(2) HP_L(R) 13(14) JK2801 E1(2) 9(10) CD SIGNAL C1(2) Q2571 MUTING SWITCH D2811...
  • Page 54 SA-AK230PL JK5952 10(14) 4(1) -IN_L(R) OUT_L(R) LOW CH (6 W) IC5802 RSN35H2B-P +VCC POWER HIC 11(13) +IN_L(R) -VCC AC DET LATCH FILTER IN GND OUT GND -VCCM D5814 FILTER FILTER Q5802, Q5805 Q5812, Q5813 VOLTAGE SUPPLY/ DC_DET DC DETECT CURRENT CONTROL...

  • Page 55: Voltage Measurement

    SA-AK230PL 15 Voltage Measurement...
  • Page 56 SA-AK230PL...

  • Page 57: Schematic Diagram

    SA-AK230PL 16 Schematic Diagram (All schematic diagrams may be modified at any time with the development of the new technology) Note: : Push switch : Push switch : Open switch : CD switch : Load switch S951 : Mode switch...

  • Page 58: A) Cd Servo Circuit

    SA-AK230PL 16.1. (A) CD Servo Circuit SCHEMATIC DIAGRAM - 1 : +B SIGNAL LINE : CD-DA SIGNAL LINE OPTICAL PICKUP CIRCUIT CD SERVO CIRCUIT Q7601 CP701 R7601 B1ADCF000001 C7670 LASER DIODE C7204 C7203 C7601 LASER POWER DRIVE 6.3V220 6.3V33 Q7601...
  • Page 59 SA-AK230PL SCHEMATIC DIAGRAM - 2 : +B SIGNAL LINE : CD-DA SIGNAL LINE : CD SIGNAL LINE CD SERVO CIRCUIT C7626 C7625 C7224 C7223 6.3V220 6.3V100 R7217 C7225 1000P C7226 R7211 1000P R7218 R7221 C7231 C7230 6.3V220 R7212 C7234 C7233...

  • Page 60: B) Main (Tuner) Circuit

    SA-AK230PL 16.2. (B) Main (Tuner) Circuit SCHEMATIC DIAGRAM - 3 : +B SIGNAL LINE : FM SIGNAL LINE : AM SIGNAL LINE : FM/AM SIGNAL LINE : FM OSC SIGNAL LINE : AM OSC SIGNAL LINE MAIN (TUNER) CIRCUIT R2604...

  • Page 61: B) Main Circuit

    SA-AK230PL 16.3. (B) Main Circuit SCHEMATIC DIAGRAM - 4 : PLAYBACK SIGNAL LINE : AUX SIGNAL LINE : +B SIGNAL LINE : RECORD SIGNAL LINE : MAIN SIGNAL LINE : -B SIGNAL LINE MAIN CIRCUIT Q2980 B1GDCFJJ0023 Q2978 B1GDCFJJ0023 DECK MOTOR SWITCH...

  • Page 62: Main Circuit

    SA-AK230PL SCHEMATIC DIAGRAM - 5 : CD SIGNAL LINE : +B SIGNAL LINE PANEL CIRCUIT : -B SIGNAL LINE (CN6601) ON : MAIN SIGNAL LINE SCHEMATIC DIAGRAM- 9 MAIN CIRCUIT CN2806 30 29 28 27 26 25 15 14 13 12 11 10...
  • Page 63 SA-AK230PL SCHEMATIC DIAGRAM - 6 : +B SIGNAL LINE MAIN CIRCUIT 64 63 MCLK MCLK RESTSW /RESTSW CHG_HLF CHG_HLF CHG_CW R2834 /DCDET CHG_CW DCDET CHG_CCW PCONT CHG_CCW PCONT/EFP_/CE CHG_SW1 CD2-LED CHG_SW1 CD2-LED CHG_SW2 CD1-LED CHG_SW2 CD1-LED CHG_PLR EE_DAT CHG_PLR EE_DAT...
  • Page 64 SA-AK230PL SCHEMATIC DIAGRAM - 7 : +B SIGNAL LINE : AUX SIGNAL LINE : MAIN SIGNAL LINE : -B SIGNAL LINE : CD SIGNAL LINE : PLAYBACK SIGNAL LINE : RECORD SIGNAL LINE : FM/AM SIGNAL LINE MAIN CIRCUIT D2951...

  • Page 65: C) Panel Circuit

    SA-AK230PL 16.4. (C) Panel Circuit SCHEMATIC DIAGRAM - 8 : +B SIGNAL LINE : MAIN SIGNAL LINE : -B SIGNAL LINE PANEL CIRCUIT SYS6V S6210 R6458 DECK1 4.7K D6458 S6209 B3AAA00000583 POWER KEY3 S6301 R6399 S6208 OPEN/CLOSE TAPE VREF+ VR6491...

  • Page 66: Panel Circuit

    SA-AK230PL SCHEMATIC DIAGRAM - 9 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE PANEL CIRCUIT FL6601 A2BD00000111 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40...

  • Page 67: D) Transformer Circuit, (E) Cd Detect Circuit, (F) Spindle Position Circuit & (G) Cd Loading Circuit

    SA-AK230PL 16.5. (D) Transformer Circuit, (E) CD Detect Circuit, (F) Spindle Position Circuit & (G) CD Loading Circuit SCHEMATIC DIAGRAM - 10 : +B SIGNAL LINE : -B SIGNAL LINE TRANSFORMER CIRCUIT D5950-D5953 B0EAMM000038 VCC+ D5950 D5952 VCC- C5960 POWER...

  • Page 68: H) Power Circuit

    SA-AK230PL 16.6. (H) Power Circuit SCHEMATIC DIAGRAM - 11 : -B SIGNAL LINE : MAIN SIGNAL LINE : +B SIGNAL LINE POWER CIRCUIT IC5802 IC5802 RSN35H2B-P POWER HIC C5521 100V10 R5450 330K D5814 C5443 B0AACK000004 100V10 C5441 C5243 R5445 C5838 R5853 5.6K...

  • Page 69: I) Deck Circuit & (J) Deck Mechanism Circuit

    SA-AK230PL 16.7. (I) Deck Circuit & (J) Deck Mechanism Circuit SCHEMATIC DIAGRAM -12 : +B SIGNAL LINE : PLAYBACK SIGNAL LINE : RECORD SIGNAL LINE DECK CIRCUIT C1038 R1055 C1057 220P C1034 2.2K 1000P 50V3.3 C1044 10V33 R1101 R1100 R1015 C1032 0.018...
  • Page 70 SA-AK230PL SCHEMATIC DIAGRAM - 13 : PLAYBACK SIGNAL LINE : +B SIGNAL LINE : RECORD SIGNAL LINE MAIN CIRCUIT (CN2803) ON SCHEMATIC DIAGRAM-4 DECK CIRCUIT CN1001 R1098 R1060 R1057 R1091 2.2K R1097 R1092 R1049 R1084 W1002 Q1017 2.2K B1AARC000002 C1049...

  • Page 71: Printed Circuit Board

    SA-AK230PL 17 Printed Circuit Board Note: Circuit board diagrams may be modified at any time with the development of new technology. 17.1. (A) CD Servo P.C.B. CD SERVO P.C.B (REPX0443A) C7670 R7217 C7223 C7601 C7106 C7105 W7011 R7212 TP29 TP22...

  • Page 72: B) Main P.c.b

    SA-AK230PL 17.2. (B) Main P.C.B. MAIN P.C.B (REPX0442V) CN2810 W2257 TO FAN W2236 R2940 W2258 CN2805 Q2706 W2259 R2709 D2705 Q2704 W2260 R2715 Q2705 W2261 W2248 Q2936 D2704 W2265 W2249 D2936 D2703 W2262 R2702 R2858 R2860 Q2701 W2250 Q2937 W2263...
  • Page 73 SA-AK230PL W2257 Q2901 R2902 W2258 C2902 W2259 R2910 Q2902 W2515 W2260 W2261 D2901 W2265 CN2801 W2262 R2860 W2263 R2859 W2266 R2903 W2268 R2917 C2814 D2904 W2267 R2918 W2208 W2269 W2905 Q2906 W2275 W2504 W2508 2255 W2276 2256 W2270 W2904 Q2907...

  • Page 74: C) Panel

    SA-AK230PL 17.3. (C) Panel P.C.B. PANEL P.C.B (REPX0441C) W6991 W6994 AK230 FL6601 C6631 W6100 C6623 C6481 W6005 Z6481 S6101 J6481 W6006 C6612 W6002 R6611 OPEN/ CLOSE C6635 R6102 S6102 R6111 W6045 W6044 W6046 S6103 W6079 J6108 S6104 W6032 W6030 S6204...
  • Page 75 SA-AK230PL FL6601 CN6601 W6105 R6458 J6902 W6100 D6458 W6089 W6075 C6636 W6063 W6083 W6076 S6301 W6062 IC6601 W6082 W6085 W6102 W6065 R6611 W6033 POWER W6103 W6094 W6080 W6059 C6632 W6081 W6066 R6199 W6077 W6071 J6108 W6034 R6302 W6010 S6303 D6457...

  • Page 76: D) Transformer P.c.b

    SA-AK230PL 17.4. (D) Transformer P.C.B. TRANSFORMER P.C.B (REPX0468A) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B 125V 2.5A T5951 C5962 SUB-TRANSFORMER R5957 Q5952 C5963 W5938 Q5953 RL5950 R5951 JK5950 W5920 W5989 C5952 W5995 T5950...

  • Page 77: E) Cd Detect P.c.b., (F) Spindle Position P.c.b., (G) Cd

    SA-AK230PL 17.5. (E) CD Detect P.C.B., (F) Spindle Position P.C.B., (G) CD Loading P.C.B. & (K) Tuner Pack P.C.B. CD LOADING P.C.B (REP2578A-N) OPEN PUSH PUSH CD DETECT P.C.B SPINDLE POSITION P.C.B (REP2578A-N) (REP2578A-N) LOAD TUNER PACK P.C.B (REP1999B)

  • Page 78: H) Power

    SA-AK230PL 17.6. (H) Power P.C.B. POWER P.C.B (REPX0469H) H5950/W5950 Q5801 Q5802 Q5803 Q5804 W5809 R5814 R5823 R5813 D5801 R5828 C5804 C5809 C5806 C5811 FP5833 R5825 W5834 W5835 Q5806 C5805 W5836 R5826 W5846 W582 W5824 R5802 W5864 R5818 R5827 W5804 Q5814...
  • Page 79 SA-AK230PL IC5802 W5870 W5869 W5453 W5881 R5450 W5253 D5802 W5825 W5824 R5802 Q5814 JK5952 R5805 R5446 W5803 Q5813 Q5812 1-LG 2-RG W5847 SPEAKER R5455 C5545 R5246 W5863 C5846 W5861 R5855 W5878 CN5800...

  • Page 80: I) Deck P.c.b. & (J) Deck Mechanism

    SA-AK230PL 17.7. (I) Deck P.C.B. & (J) Deck Mechanism P.C.B. DECK P.C.B DECK MECHANISM P.C.B (REPX0331D) (REPX0321A) R1024 IC1004 C1006 C1009 R1027 CS1002 TP10 Q1003 J1002 L1002 TP11 R1004 R1001 Q1007 W1002 C1002 C1026 J1003 TP12 S951 C1021 C1020 C1011...

  • Page 81: Wiring Connection Diagram

    SA-AK230PL 18 Wiring Connection Diagram FM ANT AM ANT H5950/ W5950 JK2601 JK2801 To Fan TUNER PACK CD LOADING P.C.B CN2810 CN5801 CN2809 P.C.B SOLDER SIDE MAIN P.C.B SOLDER SIDE CN2805 TUNER PACK CD DETECT P.C.B SOLDER SIDE BLACK 13 14 POWER P.C.B...

  • Page 82: Illustration Of Ic , Transistors And Diodes

    SA-AK230PL 19 Illustration of IC’s, Transistors and Diodes C2CBJG000565 (100P) RSN35H2B-P C0AABA000009 C1AA00000612 C0HBB0000044 (48P) AN7348S-E1 (24P) MN6627953HB (80P) LA1833NMNTLM (24P) LC72131MDTRM (20P) C1BB00000732 (32P) AN8739SBTE2 C0GAM0000005 CNB13030R2AU B1BACG000023 2SB0709AHL B1BCCG000002 2SB0601AHL B1ADCF000001 B1ABCF000131 B1GDCFJJ0023 B1GBCFJJ0039 B1AAGC000007 B1AACF000064 B1ACKD000004 B1GACFGG0004...

  • Page 83: Terminal Function Of Ic

    SA-AK230PL 20 Terminal Function of IC’s 20.1. IC7002 (MN6627953HB) Servo Pin No. Mark Function AVDD2 Analog circuit power supply 2 processor/ Digital signal OUTL LCH output signal processor/ Digital filter/ D/A AVSS1 Audio output circuit GND 1 N.C. No Connection...

  • Page 84: Ic2801 (C2Cbjg000565) System Microprocessor

    SA-AK230PL Pin No. Mark Function Pin No. Mark Function Motor driver (2) forward-action MUTE_H HIC Mute output MUTE_A Audio Mute Motor driver (3) reverse-action EE_CS/EFP_/EP EEPROM Chip Select output Crystal oscillating circuit input (f = EE_CLK EEPROM Clock 16.9344MHz) EE_DAT...
  • Page 85 SA-AK230PL Pin No. Mark Function Demo Selector (H= default demo on, L= default demo off.)

  • Page 86: Troubleshooting Guide

    SA-AK230PL 21 Troubleshooting Guide...

  • Page 87: Parts Location And Replacement Parts List

    SA-AK230PL 22 Parts Location and 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 88: Deck Mechanism (Raa4502-S)

    SA-AK230PL 22.1. Deck Mechanism (RAA4502-S) 22.1.1. Deck Mechanism Parts Location...
  • Page 89 SA-AK230PL...

  • Page 90: Deck Mechanism Parts List

    SA-AK230PL 22.1.2. Deck Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks CASSETTE DECK RED0069 R/P HEAD BLOCK UNIT RED0070 P/B HEAD BLOCK UNIT RDG0300 REEL BASE GEAR RDG0301 WINDING RELAY GEAR RDK0026 MAIN GEAR RDV0033-4 WINDING BELT...

  • Page 91: Cd Loading Mechanism (Rd-Dac026-S)

    SA-AK230PL 22.2. CD Loading Mechanism (RD-DAC026-S) 22.2.1. CD Loading Mechanism Parts Location...
  • Page 92 SA-AK230PL...

  • Page 93: Cd Loading Mechanism Parts List

    SA-AK230PL 22.2.2. CD Loading Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks TRAVERSE DECK XTN2+6G SCREW RMX0141 PUSH SPACER RML0517 TIMING LEVER RMQ0749 UPPER SPINDLE RML0516 PLUNGER LEVER...

  • Page 94: Cabinet

    SA-AK230PL 22.3. Cabinet 22.3.1. Cabinet Parts Location...
  • Page 95 SA-AK230PL...

  • Page 96: Electrical Parts List

    SA-AK230PL 22.3.2. Cabinet Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS RKFX0126-SJ CASS LID R RKMX0105-S TOP CABINET 8025M12SND4 RMBX0036 CASS OPEN SPRING REEX0202 10P FFC (PANEL)
  • Page 97 SA-AK230PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks D1003 B0ACCK000005 DIODE S6301 EVQ21405R SW POWER D1004 B0BC3R700004 DIODE S6303 EVQ21405R SW SSEQ D2241 B0ACCK000005 DIODE S6304 EVQ21405R SW REC...
  • Page 98 SA-AK230PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks DISPLAY TUBE W7002 ERJ3GEY0R00V CHIP JUMPER W7003 ERJ3GEY0R00V CHIP JUMPER FL6601 A2BD00000111 W7004 ERJ3GEY0R00V CHIP JUMPER W7005 ERJ3GEY0R00V CHIP JUMPER FUSE...
  • Page 99 SA-AK230PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R1019 ERJ3GEYJ392V 3.9K 1/16W R2254 ERJ3GEYJ104V 100K 1/16W R1020 ERJ3GEY0R00V 0 1/16W R2266 ERJ3GEYJ330V 33 1/16W R1022 ERJ3GEYJ103V 10K 1/16W R2267...
  • Page 100 SA-AK230PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2651 ERJ3GEYJ820V 82 1/16W R2920 ERJ3GEYJ472V 4.7K 1/16W R2652 ERJ3GEY0R00V 0 1/16W R2921 ERJ3GEYJ472V 4.7K 1/16W R2701 ERJ3GEYJ225V 2.2M 1/16W R2922...
  • Page 101 SA-AK230PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R5847 ERDS1FVJ220T 22 1/2W R7221 ERJ3GEYJ101V 100 1/16W R5853 ERDS2TJ224T 220K 1/4W R7253 ERJ3GEYJ100V 10 1/16W R5854 ERDS2TJ223T 22K 1/4W R7254...
  • Page 102 SA-AK230PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C1058 ECJ1VB1H102K 1000P 50V C2607 ECJ1VB1E473K 0.047 25V C1059 ECJ1VB1H103K 0.01 50V C2608 ECJ1VC1H080D 8P 50V C2101 ECJ1VB1C105K 1 16V C2609...

  • Page 103: Packing Materials & Accessories Parts List

    SA-AK230PL Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2936 ECJ1VF1C474Z 0.47 16V C6553 ECBT1E103ZF5 0.01 25V C2951 ECJ1VB1H103K 0.01 50V C6601 ECBT1H101KB5 100P 50V C2952 ECJ1VB1H103K 0.01 50V C6602...

  • Page 104: Packaging

    SA-AK230PL 22.6. Packaging PRT0411 D/S/J/N/A/E...

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