Panasonic SA-AK631GCP, Service Manual

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Digital filter 8 fs
D/A converter MASH (1 bit DAC)
Pickup
Wavelength 780 nm
Beam Source Semiconductor laser
Audio output (Disc)
Number of channels 2 (Stereo) (FL,FR)
n GENERAL
Power Supply
AC 110-127/220-240V, 50/60Hz
Power consumption 279 W
Power consumption in standby
mode 0.85 W
1 Before Use 4
2 Before Repair and Adjustment 4
3 Protection Circuitry 4
4 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 5
5 Handling the Lead-free Solder 5
5.1. About lead free solder (PbF) 5
6 Handling Precautions For Traverse Deck 6
7 Precaution of Laser Diode 7
8 Accessories 8
9 Operation Procedures 9
10 Disassembly and Assembly of Main Component 11
10.1. Disassembly flow chart 11
10.2. Gear for servicing (jig) Information 12
10.3. Disassembly of Top Cabinet 13
10.4. Disassembly of CD Lid 13
10.5. Disassembly of Rear Panel 15
10.6. Disassembly of CD Mechanism Unit 15
10.7. Disassembly of Main P.C.B. 16
10.8. Disassembly of Sub-Power P.C.B. 16
10.9. Disassembly of Power P.C.B. 17
10.10. Disassembly of Transformer P.C.B. & Voltage Selector 18
10.11. Disassembly of Front Panel Unit 19
10.12. Disassembly of Deck Mechanism Unit 19
10.13. CD Mechanism Main Component Replacement
Procedures 20
10.14. Replacement for the pinch roller ass
馳
and head block 34
10.15. Replacement for the Deck motor ass
馳
, capstan belt A,
capstan belt B and winding belt 35
10.16. Replacement for the cassette lid ass
馳
38
10.17. Rectification for tape jam problem 39
Dimensions (W x H x D) 250 x 330 x 341 mm
Mass 7.1 kg
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90% RH (no condensation)
n
SYSTEM
SC-AK631 (GCP) Music center: SA-AK631 (GCP)
Speaker: SB-AK630 (GC)
Subwoofer: SB-WAK630 (GC)
Notes:
1. Specifications are subject to change without notice. Mass and
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
11 Checking for major P.C.Bs 40
11.1. Checking of Main P.C.B. 40
11.2. Checking of Transformer P.C.B. 41
11.3. Checking of Panel, Deck & Deck Mechanism P.C.B. 42
11.4. Checking of Power P.C.B. 43
12 Self-Diagnostic Function 44
12.1. Self-diagnostic display 44
12.2. How to enter the Self-Diagnostic Function 44
12.3. Cassette Mechanism Test (For error code H01, H02, H03,
F01) 44
12.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29,
F30, H15 & H16) 44
12.5. To clear all Error code 45
12.6. To exit from Self-Diagnostic function 45
12.7. Power Amplifier Failure (F61) 45
12.8. Description of Error Code 45
13 CD Test Mode Function 47
13.1. How to set CD test mode 47
13.2. CD Automatically Adjustment result indication 47
13.3. CD Mecha Aging Test Mode (CR20) 47
13.4. Micon ROM Checksum and Version Display Mode 48
14 Measurements and Adjustments 49
14.1. Cassette Deck Section 49
14.2. Tuner Section 49
14.3. Alignment Points 50
15 Block Diagram 51
16 Voltage Measurement 59
17 Schematic Diagram 61
17.1. (A) CD Servo Circuit 62
17.2. (B) Main (Tuner) Circuit 64
17.3. (B) Main Circuit 65
CONTENTS
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SA-AK631GCP