Panasonic SA-AK250GCP, Руководство по обслуживанию

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(1) CD-Audio (CD-DA)
(2) CD-R/RW (CD-DA, MP3* formatted disc)
(3) MP3*
*MPEG-1 Layer 3, MPEG-2 Layer 3
Bit rate
MP3 32 kbps to 320 kbps
Sampling frequency
MP3 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 Use 4
1.3. Before repair and adjustment 4
1.4. Protection Circuitry 4
1.5. Safety Part Information 5
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 5
3 Handling Precautions For Traverse Unit 7
4 Precaution of Laser Diode 9
5 About Lead Free Solder (PbF) 10
5.1. Service caution based on legal restrictions 10
6 Accessories 11
7 Operating Procedures 12
7.1. Main Unit Key Buttons Operations 12
7.2. Remote Control Key Buttons Operations 13
8 New Features 14
8.1. Using the Music Port 14
9 Self diagnosis and special mode setting 16
9.1. Service Mode Summary Table 16
9.2. Special Mode Table 1 16
9.3. Reliability Test Mode (CRS1 Mechanism) 19
9.4. Error code Table Display 21
10 Assembling and Disassembling 26
10.1. Caution 26
10.2. Disassembly flow chart 27
10.3. Main Parts Location 28
Power supply
AC 110 to 127/220 to 240 V, 50/60Hz
Power consumption 95 W
Power consumption in standby
mode 0.7 W (Approx.)
Dimensions (W x H x D) 250 x 330 x 323 mm
Mass 7.1 kg
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90% RH (no condensation)
n SYSTEM
SC-AK250 (GCP) Music center: SA-AK250 (GCP)
Speakers: SB-AK250 (PL)
For Information on speaker system, plesae refer to the original
Service Manual (Order No. MD0704055CE) for SB-AK250PL-S.
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.
10.4. Disassembly of Top Cabinet 29
10.5. Disassembly of CD Changer Unit (CRS1) 29
10.6. Disassembly of Rear Panel 30
10.7. Disassembly of Main P.C.B. 31
10.8. Disassembly of Transformer P.C.B. 31
10.9. Disassembly of Power P.C.B. 32
10.10. Disassembly of Front Panel Unit 32
10.11. Disassembly for Panel P.C.B. 33
10.12. Disassembly of Tact Switch P.C.B. 34
10.13. Disassembly of Deck mechanism unit 34
10.14. Disassembly of Deck P.C.B. 34
10.15. Disassembly of Traverse Unit 35
10.16. Disassembly for Deck Mechanism 36
10.17. Disassembly of Deck Mechanism P.C.B. 39
10.18. Disassembly of cassette lid 40
10.19. Rectification for tape jam problem 40
11 Service Fixture and Tools 42
12 Service Positions 42
12.1. Checking and Repairing of Main P.C.B. 42
12.2. Checking and Repairing of Transformer P.C.B. 43
12.3. Checking and Repairing of Panel, Deck & Deck
Mechanism P.C.B. 43
12.4. Checking and Repairing of Power P.C.B. 44
13 Procedure for Checking Operation of Individual Parts of Deck
Mechanism Unit 45
13.1. Operation Check with Cassette Tape 45
13.2. Operation Check without Cassette Tape 45
CONTENTS
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SA-AK250GCP