Panasonic SA-AK633P Service Manual
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Panasonic SA-AK633P Service Manual

Panasonic SA-AK633P Service Manual

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Specifications

n AMPLIFIER SECTION
RMS output power
THD 10%, both channels driven
1 kHz
(Low channel)
10 kHz
(High channel)
80 Hz
(Subwoofer channel)
Total power output
FTC output power
THD 10%, both channels driven
100 Hz-3 kHz
(Low channel)
3 kHz-10 kHz
(High channel)
50 Hz-100 Hz
(Subwoofer channel)
Total FTC power
n FM/AM TUNER, TERMINALS SECTION
Preset station
Frequency Modulation (FM)
Frequency range
Sensitivity
S/N 26 dB
Antenna terminal(s)
70 W per channel (5 Ω)
65 W per channel (5 Ω)
160 W (8 Ω)
430 W
55 W per channel (5 Ω)
53 W per channel (5 Ω)
130 W (8 Ω)
346 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)
SA-AK633P
Colour
(K)... Black Type
Amplitude Modulation (AM)
Frequency range
Sensitivity
S/N 20 dB (at 1000 kHz)
Audio performance (Amplifier)
Input sensitivity/Input impedance
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 ratio
Wow and flutter
Fast forward and rewind time
n DISC SECTION
Discs played [8 cm (3") or 12 cm (5")]
(1) CD-Audio (CD-DA)
(2) CD-R/RW (CD-DA, MP3 formatted disc)
© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MD0503105C1
CD Stereo System
520 - 1710 kHz (10 kHz steps)
560 µV/m
250 mV,14.7 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 - 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-AK633P

  • Page 1: Specifications

    ORDER NO. MD0503105C1 CD Stereo System SA-AK633P Colour (K)... Black Type Specifications n AMPLIFIER SECTION Amplitude Modulation (AM) RMS output power Frequency range 520 - 1710 kHz (10 kHz steps) THD 10%, both channels driven Sensitivity 1 kHz S/N 20 dB (at 1000 kHz) 560 µV/m...

  • Page 2: Table Of Contents

    SA-AK633P (3) MP3 Power consumption 255 W Bit rate Power consumption in standby 0.38 W mode 32 kbps - 320 kbps Dimensions (W x H x D) 250 x 330 x 341 mm Sampling frequency (9-27/32” x 13” x 13-7/16”) 32 kHz, 44.1 kHz, 48 kHz...
  • Page 3 SA-AK633P 14.3. Alignment Points 18.6. (H) Power P.C.B. & (L) Sub-Power P.C.B. 15 Block Diagram 18.7. (I) Deck P.C.B. & (J) Deck Mechanism P.C.B. 16 Voltage Measurement 19 Wiring Connection Diagram 17 Schematic Diagram 20 Illustration of IC 痴, Transistors and Diodes 17.1.

  • Page 4: Safety Precaution

    SA-AK633P 1 Safety Precaution damage is evident. 4. After servicing, be sure to restore the lead dress, insulation (This “Safety Precaution” is applied only in U.S.A.) barriers, insulation papers, shields, etc. 1. Before servicing, unplug the power cord to prevent an 5.

  • Page 5: Before Repair And Adjustment

    SA-AK633P 1.1.1. Caution for fuse replacement 2 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 6: Handling The Lead-Free Solder

    SA-AK633P 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. Caution Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

  • Page 7: Handling Precautions For Traverse Deck

    SA-AK633P 6 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 8: Precaution Of Laser Diode

    SA-AK633P 7 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 9: Accessories

    SA-AK633P 8 Accessories Remote Control FM Antenna AC Cord AM Loop Antenna...

  • Page 10: Operation Procedures

    SA-AK633P 9 Operation Procedures...
  • Page 11 SA-AK633P...

  • Page 12: Disassembly And Assembly Of Main Component

    SA-AK633P 10 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 13: Gear For Servicing (Jig) Information

    SA-AK633P 10.2. 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 14: Disassembly Of Top Cabinet

    SA-AK633P 10.3. 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 15 SA-AK633P 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 16: Disassembly Of Rear Panel

    SA-AK633P 10.5. Disassembly of Rear Panel · Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet Step 1 Remove 7 screws and disconnect wire CN2810 (Fan) at rear cabinet as shown. 10.6. Disassembly of CD Mechanism Unit ·...

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

    SA-AK633P 10.7. Disassembly of Main P.C.B. · Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 10.4 - Disassembly of CD Lid · Follow the (Step 1) of Item 10.5 - Disassembly of Rear Panel ·...

  • Page 18: Disassembly Of Power P.c.b

    SA-AK633P · Replacement of Power Amplifier IC Step 1 Desolder the terminals of Power Amplifier IC and replace the component. 10.9. Disassembly of Power P.C.B. · Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet ·...
  • Page 19 SA-AK633P · Replacement of the Power Amplifier IC/ Voltage Regulator Step 1 Remove 2 screws fixed to the Power Amplifier IC and 1 screw to Voltage Regulator. Step 2 Break the joint with a metal cutter as shown below. Step 3 Unsolder the terminals of Power Amp IC, transistor and replace the components.

  • Page 20: Disassembly Of Transformer P.c.b

    SA-AK633P 10.10. Disassembly of Transformer P.C.B. · Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 10.4 - Disassembly of CD Lid · Follow the (Step 1) of Item 10.5 - Disassembly of Rear Panel ·...

  • Page 21: Disassembly Of Deck Mechanism Unit

    SA-AK633P Step 4 Remove 10 screws. Step 5 Disconnect connectors (CN2806, CN2803 and CN5950). 10.12. Disassembly of Deck Mechanism Unit · Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 10.4 - Disassembly of CD Lid ·...

  • Page 22: Cd Mechanism Main Component Replacement Procedures

    SA-AK633P 10.13. CD Mechanism Main Component Replacement Procedures · Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 10.4 - Disassembly of CD Lid ·...
  • Page 23 SA-AK633P 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. Step 10 Remove the FFC board from the connector, and then remove the CD Servo P.C.B.
  • Page 24 SA-AK633P 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 25 SA-AK633P Step 5 With pressing the claw (B) in the direction of arrow (1), force the connection lever in the direction of arrow (2). 10.13.2. Replacement for the Disc Tray Step 1 Remove 4 screws. Step 2 Remove the upper plate.
  • Page 26 SA-AK633P Step 6 Insert the gear with hexagonal wrench into the hole. Step 9 With forcing the left guide bar manually because the left guide bar interfers with claw, draw the disc tray. [Installation of the disc tray after replacement] Step 7 Rotate the hexagonal wrench in the direction of arrow, and then open the disc tray fully.
  • Page 27 SA-AK633P NOTE: Force the right guide bar of tray base manually not to move upwards. Step 4 Holding the disc tray manually, push the disc tray in the direction of the arrow. 10.13.3. Disassembly and reassembly for mechanism base drive unit Step 1 Remove 3 screws.
  • Page 28 SA-AK633P Step 9 Pressing the claw (B) in the direction of arrow (1), force the connection lever in the direction of arrow (2). Step 6 Install the tray lock spring to hook temporary. Step 7 Release the claw, and then remove the tray lock.
  • Page 29 SA-AK633P Step 13 Remove the traverse relay gear, traverse cam gear and drive gear. 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).
  • Page 30 SA-AK633P Step 3 Rotate the disc lever in the direction of arrow (1), draw the disc lever. NOTE: Hold the loading stopper ass’y manually bacause it is flipped by spring. NOTE: Take care not to lose the disc lever spring.
  • Page 31 SA-AK633P 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 12 Squeeze the shaft of lower hook, and then draw it. Step 13 Rotate the lower spindle in the direction of arrow until Step 10 Remove the lower spindle spring with tweezers.
  • Page 32 SA-AK633P spread the hold bars of loading stopper and remove the Step 1 Install the traverse cam gear. UP/DOWN base. Step 2 Rotate the traverse cam gear to the direction of arrow. [Installation for loading stopper ass’y] Step 1 Align the claw of loading stoppers ass’y with the slot of spindle base.
  • Page 33 SA-AK633P Step 4 Install the slide plate 2 to the mechanism base, and then match to the connection lever. Step 7 Move the slide plate 1 to forward fully. Step 5 Install the slide plate 1 to the mechanism base, and then match to the connection leve and align the trapezoid tooth Step 8 Install the rear lock.
  • Page 34 SA-AK633P Step 13 Install the gear holder, and then tighten the screw (a). Step 11 Remove the tray lock spring from hook,and then latch to the tray lock. Step 12 Install the UP/DOWN gear, change gear, change gear spring, pulley gear and belt in the order of (1) - (5).

  • Page 35: Replacement For The Pinch Roller Ass 馳 And Head Block

    SA-AK633P 10.13.4. Replacement for the motor ass’y Step 1 Install the belt temporarily. NOTE: Take care not apply the grease to the belt. Step 6 Release the 2 claws (A), and then remove the Motor Step 2 Upset the CD loading unit.

  • Page 36: Replacement For The Deck Motor Ass 馳, Capstan Belt A, Capstan Belt B And Winding Belt

    SA-AK633P Step 1 Release the 2 claws, and then remove the pinch roller (R), (F). Step 2 Release the 2 claws, and then remove the head connector. Step 3 Remove 2 screws. 10.15. Replacement for the Deck motor ass’y, capstan belt A, capstan belt B and winding belt ·...
  • Page 37 SA-AK633P 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 Step 2 Put the winding belt on the pulley temporarily.
  • Page 38 SA-AK633P 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 39: Replacement For The Cassette Lid Ass 馳

    SA-AK633P 10.16. Replacement for the cassette lid ass’y · Follow the (Step 1) - (Step 2) of Item 10.3 - 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 40: Rectification For Tape Jam Problem

    SA-AK633P 10.17. Rectification for tape jam problem · Follow the (Step 1) - (Step 2) of Item 10.3 - 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 41: Checking For Major P.c.bs

    SA-AK633P 11 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., Sub- Power P.C.B. and Power P.C.B.) can be carried out using below procedures. For the disassembling procedures, refer to Section 10.

  • Page 42: Checking Of Transformer P.c.b

    SA-AK633P 11.2. 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 43: Checking Of Panel, Deck & Deck Mechanism P.c.b

    SA-AK633P 11.3. 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 44: Checking Of Power P.c.b

    SA-AK633P 11.4. 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 45: Self-Diagnostic Function

    SA-AK633P 12 Self-Diagnostic Function 12.1. 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. 12.2. How to enter the Self-Diagnostic Function 12.3.

  • Page 46: To Clear All Error Code

    SA-AK633P 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 47 SA-AK633P 12.8.3. 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 48: Cd Test Mode Function

    SA-AK633P 13 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 49: Micon Rom Checksum And Version Display Mode

    SA-AK633P · 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 50: Measurements And Adjustments

    SA-AK633P 14 Measurements and Adjustments 14.1. 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 51: Alignment Points

    SA-AK633P 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 14.2.2. AM RF Adjustment 1. Connect the instrument as shown in Fig. 7. 2. Set the unit to AM mode.

  • Page 52: Block Diagram

    SA-AK633P 15 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 53 SA-AK633P TO MAIN BLOCK X7201 NTEST IOMODE CD_RST NRST TXTCK MICRO COMPUTER TIMING GENERATOR DSL/PLL/VCO INTERFACE TXTD DQSY RFVDD (SBCK) EFM DEMODULATION SUBCODE (SUBC) VREF SPINDLE SYNC INTERPOLATION INTERFACE SERVO CIRC ECC (TXNCLDCK) CDROM ECC A, B, C, D, E, F...
  • Page 54 SA-AK633P AM ANT FM ANT Z2620 CF2601 CF2602 Q2601 Q1 (RF AMP) MIXER IF AMP D2602 L2602 L2601 BUFFER (FM) DECODER RM AMP BUFFER PILOT PHASE CANCEL STEREO LEVEL S-CURVE SWITCH AM/FM COMP BUFFER TUNING DRIVE PILOT IC2601 X2602 LA1833NMNTLM...
  • Page 55 SA-AK633P FL6601 FROM POWER FL DISPLAY TRANSFORMER 50~84 7~14, 30~37 16~23, 1~4, 25~51 53~64 IC6601 C0HBB0000039 FL DRIVER C0GAM0000005 MOTOR DRIVE OUT1 OUT2 POWER SUPPLY CONTROL PLLDA Q2907 STAT SWITCH PUSH Q2936 CD MOTOR PUSH SUPPLY ST/DO SWITCH OPEN PLLCLK...
  • Page 56 SA-AK633P 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 SWITCH (DECK 2) ERASE HEAD L1002...
  • Page 57 SA-AK633P IC2804 7(8) B1(2) C0AABA000009 DUAL OP-AMP Q2181 (Q2281) 22(21) 2(6) OUT1(2) HPF FREQ 1(7) FILTER 3(5) SWITCH Q2142 (Q2242) CONTROL 5(6) IC2806 A1(2) C0ABBB000244 DUAL OP-AMP 2(4) IC2803 SEL1(2) C1BB00000732 AUDIO SOUND 32(31) PROCESSOR REC1(2) 13(14) HP_L(R) JK2801 E1(2)
  • Page 58 SA-AK633P IC2810 C0ABBB000244 DUAL OP-AMP SUBW FILTER Q2553 Q2551 SUBWOOFER SW_LV1 LEVEL SWITCH CONTROL DC_DET Q2554 Q2552 SUBWOOFER SW_LV2 LEVEL SWITCH CONTROL HP_SW SYNC MUTE_H...
  • Page 59 SA-AK633P 16(15) 3(6) -IN2 1(2) OUT 2 1(2) HIGH CH (6 W) IC5801 JK5851 (JK5852) RSN315H42C-P POWER HIC 7(9) 13(12) OUT 1 1(2) -IN1 1(2) LOW CH (6 W) 4(2) +VCC 1(2) FILTER 5(1) -VCC 1(2) 4(1) 10(14) D5814 IN GND...

  • Page 60: Voltage Measurement

    SA-AK633P 16 Voltage Measurement...
  • Page 61 SA-AK633P...

  • Page 62: Schematic Diagram

    SA-AK633P 17 Schematic Diagram (All schematic diagrams may be modified at any time with the Secondary trouble can be prevented by taking care during development of the new technology) repair. · Cover the parts boxes made of plastics with aluminium foil.

  • Page 63: A) Cd Servo Circuit

    SA-AK633P 17.1. (A) CD Servo Circuit SCHEMATIC DIAGRAM - 1 : +B SIGNAL LINE : CD-DA SIGNAL LINE OPTICAL PICKUP CIRCUIT CD SERVO CIRCUIT Q7601 LASER DIODE B1ADCF000001 R7601 C7601 C7670 C7204 C7203 LASER POWER DRIVE 6.3V33 6.3V220 Q7601 R7650...
  • Page 64 SA-AK633P 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 65: B) Main (Tuner) Circuit

    SA-AK633P 17.2. (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 66: B) Main Circuit

    SA-AK633P 17.3. (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 B1GDCFJJ0047 Q2978 B1GDCFJJ0047 DECK MOTOR SWITCH...
  • Page 67 SA-AK633P SCHEMATIC DIAGRAM - 5 : CD SIGNAL LINE : +B SIGNAL LINE PANEL CIRCUIT : -B SIGNAL LINE (CN6601) ON : MAIN SIGNAL LINE SCHEMATIC DIAGRAM-10 MAIN CIRCUIT CN2806 36 35 34 33 32 31 30 29 28 27 26 25...
  • Page 68 SA-AK633P SCHEMATIC DIAGRAM - 6 : -B SIGNAL LINE : +B SIGNAL LINE TO FAN UNIT MAIN CIRCUIT CN2810 R2320 R2420 R2591 R2338 D2332 330K B0ADCC000002 R2337 C2334 R2333 C2332 470K 0.22 R2439 R2339 R2331 2.2K 2.2K R2592 C2331 R2715...
  • Page 69 SA-AK633P SCHEMATIC DIAGRAM - 7 : +B SIGNAL LINE MAIN CIRCUIT 64 63 CD5_LED MCLK MCLK CD5-LED CD4_LED RESTSW /RESTSW CD4-LED CHG_HLF CD3_LED CHG_HLF CD3-LED DCDET CHG_CW R2834 CHG_CW DCDET CHG_CCW PCONT CHG_CCW PCONT/EFP_/CE CHG_SW1 CD2_LED CHG_SW1 CD2-LED CHG_SW2 CD1_LED...
  • Page 70 SA-AK633P SCHEMATIC DIAGRAM - 8 : +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 71: C) Panel Circuit

    SA-AK633P 17.4. (C) Panel Circuit SCHEMATIC DIAGRAM - 9 : +B SIGNAL LINE : MAIN SIGNAL LINE : -B SIGNAL LINE PANEL CIRCUIT SYS6V S6210 S6310 R6458 ENTER DECK1 4.7K R6310 D6458 S6209 B3AAA00000583 S6309 POWER KEY3 TITLE SEARCH R6309 S6301 6.8K...
  • Page 72 SA-AK633P SCHEMATIC DIAGRAM - 10 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE PANEL CIRCUIT R6451 Q6451 3.9K Q6451 - Q6455 CD2_LED B1GACFLL0008 D6451 LED DRIVE B3AAA00000583 R6452 Q6452 3.9K CD1_LED D6452 B3AAA00000583 R6453 Q6453 3.9K...

  • Page 73: D) Transformer Circuit

    SA-AK633P 17.5. (D) Transformer Circuit SCHEMATIC DIAGRAM - 11 : +B SIGNAL LINE : -B SIGNAL LINE TRANSFORMER CIRCUIT D5950-D5953, D5970-D5973 B0EAMM000038 VCC+ D5952 D5950 VCC- D5972 C5960 D5970 POWER D5973 D5971 CIRCUIT AC GND D5953 (H5950/ D5951 T5950 W5950) ON...

  • Page 74: E) Cd Detect Circuit, (F) Spindle Position Circuit, (G)Cd

    SA-AK633P 17.6. (E) CD Detect Circuit, (F) Spindle Position Circuit, (G)CD Loading Circuit & (L) Sub-Power Circuit SCHEMATIC DIAGRAM - 12 : +B SIGNAL LINE : -B SIGNAL LINE C0GAM0000005 MOTOR DRIVE 0.01 50V5.6P 100K CD DETECT B0BA4R600003 CIRCUIT PLUNGER...

  • Page 75: H) Power Circuit

    SA-AK633P 17.7. (H) Power Circuit SCHEMATIC DIAGRAM - 13 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE POWER CIRCUIT IC5801 IC5801 RSN315H42C-P POWER HIC A_GND -VCCM SUB-POWER RIGHT CIRCUIT CHANNEL AC_DET SPEAKER (H5004/W004) HIGH R5857 -VCC...

  • Page 76: I) Deck Circuit & (J) Deck Mechanism Circuit

    SA-AK633P 17.8. (I) Deck Circuit & (J) Deck Mechanism Circuit SCHEMATIC DIAGRAM -14 : +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 77 SA-AK633P SCHEMATIC DIAGRAM - 15 : PLAYBACK SIGNAL LINE : +B SIGNAL LINE : RECORD SIGNAL LINE MAIN CIRCUIT (CN2803) ON SCHEMATIC DIAGRAM-4 DECK CIRCUIT CN1001 14 13 12 11 10 R1098 R1057 R1060 2.2K R1097 R1091 R1092 W1002 R1049...

  • Page 78: Printed Circuit Board

    SA-AK633P 18 Printed Circuit Board Note: Circuit board diagrams may be modified at any time with the development of new technology. 18.1. (A) CD Servo P.C.B. CD SERVO P.C.B (REPX0443A) C7670 R7217 C7223 C7601 C7106 C7105 W7011 R7212 TP29 TP22...

  • Page 79: B) Main

    SA-AK633P 18.2. (B) Main P.C.B. MAIN P.C.B (REPX0442H) CN2810 W2257 TO FAN 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 R2859...
  • Page 80 SA-AK633P 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 W2255 W2276 W2256 W2270 W2904 Q2907...

  • Page 81: C) Panel

    SA-AK633P 18.3. (C) Panel P.C.B. PANEL P.C.B (REPX0474A) SENSOR FL6601 W6994 49 50 C6631 C6623 C6481 Z6481 S6101 W6107 OPEN/CLOSE IC6601 J6481 W6005 C6635 W6006 R6102 S6102 S6110 S6309 R6111 S6107 TITLE LEFT SEARCH W6045 D6453 W6044 W6046 S6103 S6109...
  • Page 82 SA-AK633P FL6601 CN6601 R6458 11 13 15 17 19 21 23 25 27 29 31 33 35 W6102 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 J6902 D6458 W6089 W6075 S6301 W6063 W6083...

  • Page 83: D) Transformer

    SA-AK633P 18.4. (D) Transformer P.C.B. TRANSFORMER P.C.B (REPX0468E) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B 125V 4A T5951 C5962 SUB-TRANSFORMER R5957 Q5952 C5963 W5938 Q5953 RL5950 R5951 W5920 W5989 C5952 W5995 D5972 T5950...

  • Page 84: E) Cd Detect P.c.b., (F) Spindle Position P.c.b., (G) Cd

    SA-AK633P 18.5. (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 85: H) Power P.c.b. & (L) Sub-Power

    SA-AK633P 18.6. (H) Power P.C.B. & (L) Sub-Power P.C.B. POWER P.C.B (REPX0447A) H5950/W5950 Q5804 Q5801 Q5802 Q5803 W5872 IC5801 R5814 C5809 W5811 D5801 R5823 R5828 R5822 W5841 C5442 C5801 R5250 C5804 R5802 R5813 C5811 W5810 C5241 C5242 C5243 W5849 R5803...
  • Page 86 SA-AK633P IC5801 W5841 C5442 C5801 R5250 W5845 C5241 C5243 C5242 C5441 W5856 JK5851 W5842 W5874 R5249 R5862 R5449 W5855 W5844 R5247 RIGHT C5440 W5847 W5848 2-LG C5240 CHANNEL W5843 D5802 SPEAKER W5839 C5443 W5854 W5838 4-HG J5254 R5450 C5249 W5837...

  • Page 87: I) Deck P.c.b. & (J) Deck Mechanism

    SA-AK633P 18.7. (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 TO R/P HEAD Q1003 J1002 L1002 TP11 R1004 R1001 Q1007 W1002 C1002 C1026 J1003 MOTOR TP12...

  • Page 88: Wiring Connection Diagram

    SA-AK633P 19 Wiring Connection Diagram FM ANT AM ANT H5950/ W5950 JK2601 JK2801 TUNER PACK To Fan CD LOADING P.C.B P.C.B CN5801 CN2809 CN2810 SOLDER SIDE MAIN P.C.B SOLDER SIDE CN2805 CD DETECT P.C.B SOLDER SIDE 13 14 BLACK POWER P.C.B...

  • Page 89: Illustration Of Ic 痴, Transistors And Diodes

    SA-AK633P 20 Illustration of IC’s, Transistors and Diodes C2CBJG000561 (100P) C0AABA000009 RSN315H42C-P (18P) C1AA00000612 C0HBBB0000039 (64P) AN7348S-E1 (24P) MN6627953HB (80P) LA1833NMNTLM (24P) LC72131MDTRM (20P) C1BB00000732 (32P) CNB13030R2AU AN8739SBTE2 RSN35H2B-P (14P) C0GAM0000005 C0ABBB000244 B1BACG000023 B1BCCG000002 2SB0621AHA B1ABCF000176 2SB0709AHL B1GACFJJ0018 2SD0592ARA 2SD0601AHL...

  • Page 90: Terminal Function Of Ic 痴

    SA-AK633P 21 Terminal Function of IC’s 21.1. 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 91: Ic2801 (C2Cbjg000561) System Microprocessor

    SA-AK633P 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 92 SA-AK633P Pin No. Mark Function VREF Reference for A-D (5V) AVcc Analog Power Supply Input Demo Selector (H= default demo on, L= default demo off.)

  • Page 93: Troubleshooting Guide

    SA-AK633P 22 Troubleshooting Guide...

  • Page 94: Parts Location And Replacement Parts List

    SA-AK633P 23 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 95: Deck Mechanism (Raa4502-S)

    SA-AK633P 23.1. Deck Mechanism (RAA4502-S) 23.1.1. Deck Mechanism Parts Location...
  • Page 96 SA-AK633P...

  • Page 97: Deck Mechanism Parts List

    SA-AK633P 23.1.2. 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 98: Cd Loading Mechanism (Rd-Dac026-S)

    SA-AK633P 23.2. CD Loading Mechanism (RD-DAC026-S) 23.2.1. CD Loading Mechanism Parts Location...
  • Page 99 SA-AK633P...

  • Page 100: Cd Loading Mechanism Parts List

    SA-AK633P 23.2.2. CD Loading Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks TRAVERSE DECK XTN2+6GFJ SCREW RMX0141 PUSH SPACER RML0517 TIMING LEVER RMQ0749 UPPER SPINDLE RML0516 PLUNGER LEVER...

  • Page 101: Cabinet

    SA-AK633P 23.3. Cabinet 23.3.1. Cabinet Parts Location...
  • Page 102 SA-AK633P...

  • Page 103: Cabinet Parts List

    SA-AK633P 23.3.2. Cabinet Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS RKFX0126-1K1 CASS LID R L6FALEFH0030 RKMX0105-S TOP CABINET REEX0202 10P FFC (PANEL) RMBX0036 CASS OPEN SPRING...
  • Page 104 SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks Q6415 B1ACKD000005 TRANSISTOR D6451 B3AAA0000583 DIODE Q6421 B1GACFLL0008 TRANSISTOR D6452 B3AAA0000583 DIODE Q6425 B1GACFLL0008 TRANSISTOR D6453 B3AAA0000583 DIODE Q6451 B1GACFLL0008 TRANSISTOR...
  • Page 105 SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks CN5950 K1KA09A00227 9P CONNECTOR CN5951 K1KA09A00047 9P CONNECTOR JK2601 RJH5414-1 JK ANTENNA CN6601 RJS2A5636 36P CONNECTOR JK2801 K2HA204B0153 JK 2P RCA...
  • Page 106 SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks ERDS2TJ272T 2.7K 1/4W R2143 ERJ3GEYJ104V 100K 1/16W ERDS2TJ684T 680K 1/4W R2145 ERJ3GEYJ103V 10K 1/16W ERDS2TJ391T 390 1/4W R2146 ERJ3GEYJ102V 1K 1/16W...
  • Page 107 SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2404 ERJ3GEYJ823V 82K 1/16W R2622 ERJ3GEYJ272V 2.7K 1/16W R2411 ERJ3GEY0R00V 0 1/16W R2623 ERJ3GEYJ683V 68K 1/16W R2416 ERJ3GEYJ472V 4.7K 1/16W R2624...
  • Page 108 SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2877 ERJ3GEYJ223V 22K 1/16W R5452 ERJ3GEYJ224V 220K 1/16W R2878 ERJ3GEYJ472V 4.7K 1/16W R5455 ERDS1FVJ100T 10 1/2W R2881 ERJ3GEYJ221V 220 1/16W R5456...
  • Page 109 SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R6107 ERDS2TJ272T 2.7K 1/4W R7329 ERJ3GEYJ152V 1.5K 1/16W R6108 ERDS2TJ472T 4.7K 1/4W R7331 ERJ3GEYJ223V 22K 1/16W R6109 ERDS2TJ682T 6.8K 1/4W R7335...
  • Page 110 SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2111 ECJ1VB1C104K 0.1 16V C2525 ECJ1VB1C105K 1 16V C2112 ECJ1VB1H152K 1500P 50V C2526 ECJ1VB1H221K 220P 50V C2114 ECJ1VB1H103K 0.01 50V C2527...
  • Page 111 SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2815 ECJ1VC1H101K 100P 50V C5813 ECEA1EKA100B 10 25V C2816 ECJ1VC1H101K 100P 50V C5820 ECA1HM222B 2200 50V C2817 ECJ1VC1H101K 100P 50V C5838 ECEA1HKA2R2B 2.2 50V...

  • Page 112: Packing Materials & Accessories Parts List

    SA-AK633P Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C7601 ECEA0JKA330I 33 6.3V C7625 ECEA0JKA221I 220 6.3V C7613 ECJ1VB1C104K 0.1 16V C7626 ECJ1VB1C104K 0.1 16V C7614 ECEA0JKA101I 100 6.3V C7670 ECJ1VB1C104K 0.1 16V...

  • Page 113: Packaging

    SA-AK633P 23.6. Packaging PRT0503 S/J/N/A/E...

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