Table Of Contents - Pioneer N-50 Service Manual

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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS .................................................................................................................................................... 4
1.1 NOTES ON SOLDERING ............................................................................................................................................... 4
2. SPECIFICATIONS................................................................................................................................................................. 5
2.1 ACCESSORIES .............................................................................................................................................................. 5
2.2 SPECIFICATIONS .......................................................................................................................................................... 5
2.3 PLAYABLE FILE FORMATS ........................................................................................................................................... 6
3. BASIC ITEMS FOR SERVICE ............................................................................................................................................ 10
3.1 CHECK POINTS AFTER SERVICING ......................................................................................................................... 10
3.2 PCB LOCATIONS ......................................................................................................................................................... 11
3.3 JIGS LIST ..................................................................................................................................................................... 12
4. BLOCK DIAGRAM .............................................................................................................................................................. 14
4.1 OVERALL CONNECTION DIAGRAM (1/2) .................................................................................................................. 14
4.2 OVERALL CONNECTION DIAGRAM (2/2) .................................................................................................................. 16
4.3 BLOCK DIAGRAM ........................................................................................................................................................ 18
5. DIAGNOSIS ........................................................................................................................................................................ 20
5.1 TROUBLESHOOTING.................................................................................................................................................. 20
5.2 PROTECTION CIRCUIT ERROR DETECTION ........................................................................................................... 23
5.3 HOW TO CHECK THE IC COMMUNICATION ............................................................................................................. 24
5.4 IC INFORMATION ........................................................................................................................................................ 24
6. SERVICE MODE ................................................................................................................................................................. 25
6.1 SERVICE MODE .......................................................................................................................................................... 25
6.2 INITIAL SETTING ......................................................................................................................................................... 27
7. DISASSEMBLY ................................................................................................................................................................... 28
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 34
8.1 FIRMWARE UPDATE ................................................................................................................................................... 34
8.2 HOW TO CHECK EACH TERMINAL............................................................................................................................ 37
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 40
9.1 PACKING SECTION ..................................................................................................................................................... 40
9.2 EXTERIOR SECTION .................................................................................................................................................. 42
10. SCHEMATIC DIAGRAM .................................................................................................................................................... 44
10.1 JACK ASSY ................................................................................................................................................................ 44
10.2 D-MAIN ASSY (1/5) .................................................................................................................................................... 46
10.3 D-MAIN ASSY (2/5) .................................................................................................................................................... 48
10.4 D-MAIN ASSY (3/5) .................................................................................................................................................... 50
10.5 D-MAIN ASSY (4/5) .................................................................................................................................................... 52
10.6 D-MAIN ASSY (5/5) .................................................................................................................................................... 54
10.7 DAC ASSY.................................................................................................................................................................. 56
10.8 LCD/KEY ASSY.......................................................................................................................................................... 58
10.9 LED ASSY, POWER SW ASSY, IR ASSY AND POWER LED ASSY ........................................................................ 60
10.10 USB ASSY................................................................................................................................................................ 62
10.11 STBY ASSY.............................................................................................................................................................. 64
10.12 CNT A ASSY AND CNT B ASSY ............................................................................................................................. 66
10.13 GUIDE 1, GUIDE 2(N-50, N-50-K/-S ONLY), GUIDE 3 AND GUIDE 4 ASSYS ....................................................... 68
11. PCB CONNECTION DIAGRAM ........................................................................................................................................ 70
11.1 JACK ASSY ................................................................................................................................................................ 70
11.2 D-MAIN ASSY ............................................................................................................................................................ 72
11.3 DAC ASSY.................................................................................................................................................................. 76
11.4 LCD/KEY ASSY.......................................................................................................................................................... 80
11.5 LED ASSY, POWER SW ASSY, IR ASSY AND POWER LED ASSY ........................................................................ 82
11.6 USB ASSY AND STBY ASSY .................................................................................................................................... 84
11.7 CNT A ASSY AND CNT B ASSY ............................................................................................................................... 88
11.8 GUIDE 1, GUIDE 2 (N-50, N-50-K/-S ONLY), GUIDE 3 AND GUIDE 4 ASSYS ........................................................ 90
12. PCB PARTS LIST.............................................................................................................................................................. 92
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N-50
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7
7
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A
B
C
D
E
F
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