Service Manuals, User Guides, Schematic Diagrams or docs for : Pioneer Audio N-70A-K pioneer_n-70a_k_n-50a_k_s_sm
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ORDER NO.
RRV4583
N-70A-K
NETWORK AUDIO PLAYER
N-70A-K
N-70A-S
N-50A-K
N-50A-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
N-70A-K SYXEV8 AC 220 V to 240 V
N-70A-S SYXEV8 AC 220 V to 240 V
N-50A-K SYXEV8 AC 220 V to 240 V
N-50A-S SYXEV8 AC 220 V to 240 V
PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2015
K-FZV JAN. 2015 Printed in Japan
1 2 3 4
SAFETY INFORMATION
A
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
B
C
D
E
F
2 N-70A-K
1 2 3 4
5 6 7 8
CONTETS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS .................................................................................................................................................... 4
1.1 NOTES ON SOLDERING ............................................................................................................................................... 4 A
1.2 STYLING OF CABLES ................................................................................................................................................... 4
2. SPECIFICATIONS................................................................................................................................................................. 4
2.1 SPECIFICATIONS .......................................................................................................................................................... 4
3. BASIC ITEMS FOR SERVICE .............................................................................................................................................. 5
3.1 CHECK POINTS AFTER SERVICING ........................................................................................................................... 5
3.2 JIGS LIST ....................................................................................................................................................................... 5
3.3 PCB LOCATIONS ........................................................................................................................................................... 6
4. BLOCK DIAGRAM ................................................................................................................................................................ 8
4.1 OVERALL CONNECTION DIAGRAM............................................................................................................................. 8
4.2 BLOCK DIAGRAM........................................................................................................................................................ 10
5. DIAGNOSIS ........................................................................................................................................................................ 12
5.1 DIAGNOSIS FLOWCHART .......................................................................................................................................... 12 B
5.2 PROTECTION CIRCUIT ERROR DETECTION ........................................................................................................... 17
5.3 PROTECTION CIRCUIT OPERATION UNDER EXCESS POWER SUPPLY VOLTAGE.............................................. 18
6. SERVICE MODE ................................................................................................................................................................. 19
6.1 SYSTEM INFORMATION DISPLAY MODE.................................................................................................................. 19
6.2 TEST MODE................................................................................................................................................................. 20
6.3 DEFAULT SETTING VALUE ......................................................................................................................................... 21
7. DISASSEMBLY ................................................................................................................................................................... 22
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 44
8.1 HOW TO UPDATING OF THE FIRMWARE.................................................................................................................. 44
8.2 HOW TO CONFORM EACH TERMINAL...................................................................................................................... 48
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 50
C
9.1 PACKING SECTION ..................................................................................................................................................... 50
9.2 EXTERIOR SECTION (N-70A-K, N-70A-S) ................................................................................................................. 52
9.3 MAIN SECTION (N-70A-K, N-70A-S)........................................................................................................................... 54
9.4 EXTERIOR SECTION (N-50A-K, N-50A-S) ................................................................................................................. 56
9.5 MAIN SECTION (N-50A-K, N-50A-S)........................................................................................................................... 58
10. SCHEMATIC DIAGRAM .................................................................................................................................................... 60
10.1 DMAIN ASSY (1/6)(N-70A-K/-S) ................................................................................................................................ 60
10.2 DMAIN ASSY (2/6)(N-70A-K/-S) ................................................................................................................................ 62
10.3 DMAIN ASSY (3/6)(N-70A-K/-S) ................................................................................................................................ 64
10.4 DMAIN ASSY (4/6)(N-70A-K/-S) ................................................................................................................................ 66
10.5 DMAIN ASSY (5/6)(N-70A-K/-S) ................................................................................................................................ 68
10.6 DMAIN ASSY (6/6)(N-70A-K/-S) ................................................................................................................................ 70 D
10.7 DMAIN ASSY (1/6)(N-50A-K/-S) ................................................................................................................................ 72
10.8 DMAIN ASSY (2/6)(N-50A-K/-S) ................................................................................................................................ 74
10.9 DMAIN ASSY (3/6)(N-50A-K/-S) ................................................................................................................................ 76
10.10 DMAIN ASSY (4/6)(N-50A-K/-S) .............................................................................................................................. 78
10.11 DMAIN ASSY (5/6)(N-50A-K/-S) .............................................................................................................................. 80
10.12 DMAIN ASSY (6/6)(N-50A-K/-S) .............................................................................................................................. 82
10.13 AUDIO ASSY (1/2)(N-70A-K/-S)............................................................................................................................... 84
10.14 AUDIO ASSY (2/2)(N-70A-K/-S)............................................................................................................................... 86
10.15 AUDIO ASSY (1/2)(N-50A-K/-S)............................................................................................................................... 88
10.16 AUDIO ASSY (2/2)(N-50A-K/-S)............................................................................................................................... 90
10.17 JACK ASSY and CNT_A ASSY................................................................................................................................ 92
10.18 HP_AMP ASSY (N-70A-K/-S)................................................................................................................................... 94 E
10.19 FRONT ASSY ........................................................................................................................................................... 96
10.20 USB_F ASSY............................................................................................................................................................ 98
10.21 HP (N-70A-K/-S), LED, POWER_SW, POWER_LED and IR ASSYS .................................................................... 100
10.22 SMPS ASSY ........................................................................................................................................................... 102
10.23 CNT_B, HP_CNT*, GUIDE_(FRONT1/2/3*, L/R*, HP*, CNT and TRANS) ASSYS (* : N-70A-K/-S)..................... 104
11. PCB CONNECTION DIAGRAM ...................................................................................................................................... 106
11.1 DMAIN ASSY............................................................................................................................................................ 106
11.2 AUDIO ASSY ............................................................................................................................................................ 110
11.3 JACK, HP_AMP (N-70A-K/-S), FRONT, CNT_A and CNT_B ASSYS...................................................................... 114
11.4 USB_F, HP (N-70A-K/-S), LED, POWER_SW, POWER_LED and IR ASSYS ......................................................... 118
11.5 SMPS ASSY and HP_CNT ASSY (N-70A-K/-S) ...................................................................................................... 120
F
11.6 GUIDE_FRONT1/2/3, GUIDE_L/R and GUIDE_HP ASSYS (N-70A-K/-S) .............................................................. 122
11.7 GUIDE_CNT ASSY and GUIDE_TRANS ASSY ...................................................................................................... 124
12. PCB PARTS LIST............................................................................................................................................................ 125
N-70A-K 3
5 6 7 8
1 2 3 4
1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
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