Panasonic SA-AK640PL, Service Manual

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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
Bit rate
MP3, WMA 32 kbps to 320 kbps
Sampling frequency
MP3/WMA 32 kHz, 44.1 kHz, 48 kHz
CD-DA 44.1 kHz
Decoding 16 bit linear
Digital filter 8 fs
D/A converter MASH (1 bit DAC)
Pick up
Wavelength 780 nm
Beam Source Semiconductor laser
Audio output (Disc)
Number of channels 2 (Stereo) (FL,FR)
n GENERAL
1 Safety Precautions 4
1.1. General Guidelines 4
1.2. Before repair and adjustment 4
1.3. Protection Circuitry 4
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 5
3 Handling Precautions For Traverse Deck 6
4 Precaution of laser diode 7
5 Handling the Lead-free Solder 8
5.1. About lead free solder (PbF) 8
6 New Features 9
6.1. CRS1 Mechanism Overview 9
6.2. Music Port 11
7 Accessories 12
8 Operating Instructions Procedures 13
9 Self diagnosis and special mode setting 15
9.1. Special Mode Table 15
9.2. Error code Table 17
10 Assembling and Disassembling 21
10.1. Caution 21
10.2. Disassembly flow chart 22
10.3. Main Parts Location 23
10.4. Disassembly of Top Cabinet 24
10.5. Disassembly of Rear Panel 24
10.6. Disassembly of CD Changer Unit (CRS1) 24
10.7. Disassembly of Main P.C.B. 26
Power supply AC 120 V, 60Hz
Power consumption 132 W
Power consumption in standby
mode 0.28 W
Dimensions (W x H x D) 250 x 330 x 343 mm
Mass 6.6 kg
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90% RH (no condensation)
n
SYSTEM
SC-AK640 (PL) Music center: SA-AK640 (PL)
Speaker: SB-AK640 (GC)
Subwoofer: SB-WAK640 (GC)
For information on speaker system, please refer to the original
Service Manual (Order No. MD0512476A3) for SB-AK640GC and
(Order No. MD0512477A3) for SB-WAK640GC.
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.
10.8. Disassembly of Transformer P.C.B. 26
10.9. Disassembly of Power P.C.B. 27
10.10. Disassembly of Front Panel Unit 28
10.11. Disassembly for Panel P.C.B. 29
10.12. Disassembly of Deck mechanism unit 30
10.13. Disassembly of Deck P.C.B. 30
10.14. Disassembly of Traverse Unit 30
10.15. Disassembly of optical pickup unit (CD mechanism) 32
10.16. Disassembly of Deck Mechanism 34
10.17. Replacement for cassette lid 38
10.18. Rectification for tape jam problem 38
11 Service Fixture and Tools 40
12 Service Positions 40
12.1. Checking and Repairing of Main P.C.B. 40
12.2. Checking and Repairing of Transformer P.C.B. 41
12.3. Checking and Repairing of Panel, Deck & Deck
Mechanism P.C.B. 42
12.4. Checking and Repairing of Power P.C.B. 43
13 Adjustment Procedures 44
13.1. Cassette Deck Section 44
13.2. Tuner Section 45
14 Voltage and Waveform Chart 47
14.1. CD Servo P.C.B. & Main P.C.B. 47
14.2. Power P.C.B. & Transformer P.C.B. 49
14.3. Waveform Chart 50
15 Wiring Connection Diagram 52
CONTENTS
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SA-AK640PL