Service Manuals, User Guides, Schematic Diagrams or docs for : Pioneer Audio VSX-920K hfe_pioneer_vsx-920_service
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ORDER NO.
RRV4048
VSX-920-K
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-920-K
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
VSX-920-K UXCNCB AC 120 V
This service manual should be used together with the following manual(s).
Model No. Order No. Remarks
VSX-820-K/CUXCNSM RRV4043
For SPECIFICATIONS and PANEL FACILITIES, refer to the operating instructions.
1 2 3 4
CONTENTS
1. CONTRAST OF MISCELLANEOUS PARTS.........................................................................................................................3
2. BASIC ITEMS FOR SERVICE...............................................................................................................................................5
A 2.1 JIGS LIST .......................................................................................................................................................................5
3. BLOCK DIAGRAM.................................................................................................................................................................6
3.1 OVERALL WIRING DIAGRAM .......................................................................................................................................6
3.2 OVERALL BLOCK DIAGRAM.........................................................................................................................................8
4. DIAGNOSIS.........................................................................................................................................................................10
4.1 DIAGNOSIS FLOWCHART ..........................................................................................................................................10
5. DISASSEMBLY ...................................................................................................................................................................21
5.1 DISASSEMBLY .............................................................................................................................................................21
6. EACH SETTING AND ADJUSTMENT ................................................................................................................................24
6.1 IDLE CURRENT ADJUSTMENT ..................................................................................................................................24
7. SCHEMATIC DIAGRAM ......................................................................................................................................................26
7.1 INPUT ASSY.................................................................................................................................................................26
B 7.2 AMP ASSY....................................................................................................................................................................28
7.3 SPEAKER, HEADPHONE and MIC ASSYS.................................................................................................................30
7.4 PT, HP_GUIDE, CNT1, CNT2, GUIDE_L and GUIDE_R ASSYS ................................................................................31
7.5 VIDEO ASSY ................................................................................................................................................................32
7.6 F-VIDEO, FRONT and FUNCTION ASSYS..................................................................................................................34
7.7 MAIN and REG ASSYS ................................................................................................................................................36
7.8 HDMI ASSY (1/2) ..........................................................................................................................................................38
7.9 HDMI ASSY (2/2) ..........................................................................................................................................................40
7.10 DSP ASSY (1/2)..........................................................................................................................................................42
7.11 DSP ASSY (2/2) ..........................................................................................................................................................44
7.12 USB ASSY ..................................................................................................................................................................46
8. PCB CONNECTION DIAGRAM ..........................................................................................................................................48
C
8.1 INPUT ASSY.................................................................................................................................................................48
8.2 AMP ASSY....................................................................................................................................................................50
8.3 SPEAKER, HEADPHONE and MIC ASSYS.................................................................................................................54
8.4 PT, HP_GUIDE, CNT1, CNT2, GUIDE_L and GUIDE_R ASSYS ................................................................................56
8.5 VIDEO ASSY ................................................................................................................................................................58
8.6 MAIN and REG ASSYS ................................................................................................................................................60
8.7 HDMI ASSY ..................................................................................................................................................................64
8.8 DSP ASSY ....................................................................................................................................................................66
8.9 USB ASSY ....................................................................................................................................................................68
9. PCB PARTS LIST ................................................................................................................................................................70
D
E
F
2 VSX-920-K
1 2 3 4
5 6 7 8
1. CONTRAST OF MISCELLANEOUS PARTS
NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The mark found on some component parts indicates the importance of the safety factor of the part. A
Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to mark on product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions, apply as you think it appropriate.)
Nos. indicate the pages and Nos. in the service manual for the base model.
When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
56 x 101 561 RD1/4PU 5 6 1 J
47 x 103 473 RD1/4PU 4 7 3 J
R50 RN2H R 5 0 K
1R0 RS1P 1 R 0 K
B
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
562 x 101 5621 RN1/4PC 5 6 2 1 F
CONTRAST TABLE
VSX-820-K/CUXCNSM and VSX-920-K/UXCNCB are constructed the same except for the following:
Mark No. Symbol and Description VSX-820-K/CUXCNSM VSX-920-K/UXCNCB Remarks
PCB ASSEMBLIES
NSP 1..MAIN ASSY 7025HK0916010-IL 7025HK0917060-IL
P68-16 2..MAIN ASSY 7028069111010-IL 7028069321010-IL
P68-6 2..PT ASSY 7028069112010-IL 7028069325010-IL C
P68-9 2..CNT2 ASSY 7028069113010-IL 7028069322010-IL
P68-4 2..HEADPHONE ASSY 7028069114010-IL 7028069324010-IL
P68-7 2..HP_GUIDE ASSY 7028069115010-IL 7028069323010-IL
P68-5 2..MIC ASSY 7028069116010-IL 7028069327010-IL
P68-10 2..GUIDE_L ASSY 7028069117010-IL 7028069328010-IL
P68-11 2..GUIDE_R ASSY 7028069118010-IL 7028069329010-IL
P68-8 2..CNT1 ASSY 7028069119010-IL 7028069326010-IL
NSP 1..VIDEO ASSY 7025HK0916013-IL Not used
P68-12 2..VIDEO ASSY 7028069141010-IL Not used
D
NSP 1..VIDEO ASSY Not used 7025HK0917062-IL
P68-12 2..VIDEO ASSY Not used 7028069301010-IL
P68-3 2..SPEAKER ASSY Not used 7028069302010-IL
NSP 1..FRONT ASSY 7025HK0916011-IL 7025HK0917067-IL
P68-13 2..F-VIDEO ASSY 7028069123010-IL 7028069124010-IL
NSP 1..INPUT ASSY 7025HK0916012-IL 7025HK0917061-IL
P68-1 2..INPUT ASSY 7028069131010-IL 7028069291010-IL
E
NSP 1..SPEAKER ASSY 7025HK0916014-IL Not used
P68-3 2..SPEAKER ASSY 7028069151010-IL Not used
NSP 1..DSP ASSY 7025HK0916015-IL 7025HK0917063-IL
P68-19 2..DSP ASSY 7028069161010-IL 7028069311010-IL
P68-17 2..REG ASSY 7028069162010-IL 7028069312010-IL
NSP 1..HDMI ASSY 7025HK0916018-IL 7025HK0917064-IL
P68-18 2..HDMI ASSY 7028069191010-IL 7028069331010-IL
NSP 1..USB ASSY 7025HK0916016-IL 7025HK0917066-IL F
P68-20 2..USB ASSY 7028069171010-IL 7028069173010-IL
VSX-920-K 3
5 6 7 8
1 2 3 4
Mark No. Symbol and Description VSX-820-K/CUXCNSM VSX-920-K/UXCNCB Remarks
NSP 1..AMP ASSY 7025HK0916019-IL 7025HK0917065-IL
P68-2 2..AMP ASSY 7028067523010-IL 7028069231020-IL
A
PACKING SECTION
P65-7 Operating Instructions (En/Frca/Es) 5707000003160-IL Not used
Operating Instructions (En/Sp) Not used 5707000003260-IL
P65-10 Box, Gift 6007211700060-IL 60072117000D0-IL
EXTERIOR SECTION
P68-22 Power Trans. 8200960610590-IL 8200960610700-IL
P68-27 Cable, Flat Card 1.25 N712232533810-IL N712232513880-IL
P68-30 Sheet 1210210762000-IL 1210211232000-IL
P68-35 Panel Front 3067214861000-IL 3067214861010-IL
B P68-38 Chassis Back 3207213456000-IL 3207213456400-IL
Posistor Not used F320121021240-IL No. 69
NSP Label Getter 920U Not used 5507000004550-IL
NSP Label Hot Surface Not used 5507000003730-IL
C
D
E
F
4 VSX-920-K
1 2 3 4
5 6 7 8
EXPLODED VIEWS
EXTERIOR SECTION
A
B
CF
QF C
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