Panasonic SA-AK240PL, Руководство по обслуживанию

Страница: 2 / 104

(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
10.8. Disassembly of Transformer P.C.B. 26
10.9. Disassembly of Power P.C.B. 27
Power supply AC 120 V, 60Hz
Power consumption 100 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-AK240 (PL) Music center: SA-AK240 (PL)
Speaker: SB-AK240 (GC)
For information on speaker system, please refer to the original
Service Manual (Order No. MD0512446A3)
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.
10.10. 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 37
10.18. Rectification for tape jam problem 37
11 Service Fixture and Tools 39
12 Service Positions 39
12.1. Checking and Repairing of Main P.C.B. 39
12.2. Checking and Repairing of Transformer P.C.B. 40
12.3. Checking and Repairing of Panel, Deck & Deck
Mechanism P.C.B. 41
12.4. Checking and Repairing of Power P.C.B. 42
13 Adjustment Procedures 43
13.1. Cassette Deck Section 43
13.2. Tuner Section 44
14 Voltage and Waveform Chart 46
14.1. CD Servo P.C.B. & Main P.C.B. 46
14.2. Power P.C.B. & Transformer P.C.B. 48
14.3. Waveform Chart 49
15 Wiring Connection Diagram 51
16 Block Diagram 53
17 Schematic Diagram 57
17.1. Notes of Schematic Diagrams 57
17.2. (A) CD Servo Circuit 59
CONTENTS
Page Page
2
SA-AK240PL