Service manual

112
VSX-918V-K
1
2 3 4
A
B
C
D
E
F
1
2 3 4
160170180190200210220230240250260270280290300310320330
IN
GND
OUT
C696
R696
D751 D752
C658
C664
C662
C654
R654
C637
C636
R632
C634
C614
C612
C604
R604
C608
C663
C661
C653
R653
C657
R697
R698
R715
R714
D703
R716
Q698
Q696
Q697
Q65
Q652
Q602
C812
C811
D801
CAL1
Q802
Q801
Q804
Q803
Q805
Q806
D742
R742
R889
R730
C871
R727
IC803
R812
R1110
R885
R886
R1105
R808
R806
C806
R1101
R807
R1109
R1102
Q807
Q808
R811
IC805
Q707
Q705
Q724
R900
R726
R680
C807
C870
R887
R888
R813
404
R901
C901
5.DGRTN
4.DGRTN
2.DGRTN
8.V+5
7.V+5
6.DGRTN
15
CN813
CN803
10
1.DGRTN
11
810
V+12
CN808
3.DGRTN
9.V+7H
2.V+5D2
1.V+5D1
3.DREG 4.DREG 5.GNDD 6.REG B+ 7.REG G 8.REG B- 9.-12V 10.GAV 11.+12V
15.RIN
14.GNDA
13.LIN
12.GNDA
11.FRO
9.FLO
10.GNDA
8.RCMUT/OVF
7.SRO
6.GNDA
5.SLO
4.GNDA
3.SWO
2.GNDA
1.CO
13.XPROTECT
17.GNDU
16.NECK
15.6OHM
14.OLDT
12.DCDT
11.F_DRIVE
10.AMUTE
9.FR
8.GNDA
7.SR
6.GNDA
5.FL
4.GNDA
3.SL
2.GNDA
1.C
15.DIR CS
14.DIR DO
13.DSP MODE
12.DSP HREQ
11.BUSY
10.DSP SS
9.DSP RST
8.DSP CLK
7.DSP DO
6.DSP DI
5.DEC MUTE
4.DIR RST
3.DIR ERR
2.NC
1.GNDD
15.DEC MUTE
14.DSP DI
13.DSP DO
12.DSP CK
11.DSP RST
10.DSP SS
9.BUSY
8.DSP HREQ
7.DSP MODE
5.DIR CS
6.DIR DO
4.DIR RST
3.DIR ERR
2.NC
1.GNDD
19.SBLO
18.GNDA(DAG)
17.SBRO
16.GNDA(DAG)
15.CO
14.GNDA(DAG)
13.SWO
12.GNDA(DAG)
11.SLO
10.GNDA(DAG)
9.SRO
8.RCMUT/OVF
7.FLO
6.GNDA(DAG)
5.FRO
4.GNDA(DAG)
3.LIN
2.GNDA (DAG)
1.RIN
13.GNDD
12.V+5A
11.GNDA (DAG)
10.GNDA (DAG)
9.V+5D
8.V+5D
7.DGRTN
6.DGRTN
5.NC
4.GNDD
3.NC
2.UGRTN
1.NC
1.SP-B RY
2.R/C RY
3.SP-A RY
5.T+9V
6.GNDT
4.HP. SW
7.ST+5V
8.GNDU
9. D+5V
10.AC RY
11.AC WP
12.-VF
21.NC
20.GNDA
19.T+12V
18.SWOUT
17.GAV
16.GAV
15.-12V
14.FL AC1
13.FL AC2
6.-12V
5.GAV
4.+12V
3.GNDU
2.SWOUT
1.GNDA
6.FL AC2
7.FL AC1
3.REG B
4.REG G
5.REG B
1.DREG
2.DREG
8.AC RY
9.AC WUP
10.GNDU
11.ST+5V
6.HP L
5.HP G
4.HP R
3.A.MUTE
2.HP.SW
1.GNDU
21.V+5D(USB)
1
CN702
CN701
6
20.GNDD
11
17
7.SLOUT+
6.SLOUT-
5.FLOUT-
14.SLIN+
4.FLOUT+
3.S.GND
10.FLIN+
1.VH+
8.NECK-
9.NECK+
2.VH-
7.SROUT+
14.SRIN+ 13.SRIN-
8.NECK-
3.S.GND
1.VH+
2.VH-
4.FROUT+
10.FRIN+
11.FRIN-
9.NECK+
13.SLIN-
IC602
IC601
1
IN
1
XWZ4322
XWZ4323
D+5.6V
V+5D
GNDU
GNDT
GNDU
GNDD
GNDD
-12V
GNDD
GNDU
-12V
GAV
+12V
GNDU
FL AC2
FL AC1
+12V
SBL/SBR/SP-B
FL/FR
R/C SP
-VF
FL AC2
FR
FL
GNDD
DREG
D+5V
OUT
CN815
GNDD
GNDA
D+5V
REGB
REGB
GAV
GNDD
GNDD
GNDD
CHASSIS
VH+
CHASSIS
VL-
VH-
VH-
GNDU
VH+
VL+
VL-
VH-
A.MUTE
GNDA
NECK-
NECK+
S.GND
CHASSIS
FLOUT
SLOUT
NECK-
FLOUT
GN
NECK+
GNDD
GAV
+12V
-12V
VL+
HP G
HP L
HP R
XWZ4325
XWZ4326
XWZ4327 XWZ4324
XWZ4328
POWER PACK ASSY
CN807
1
15
1
21
1
CN816
5.FROUT-
12.STBY
12.STBY
6.SROUT-
11.FLIN-
14
1
1
CN805
1
14
115 1
13
-
+
?` ?`
1
0
12345678 9
0
123
0
0
1
C
B
A
91
NP
NP
1
5
LF
16
1
21
POWER PACK ASSY
C
SIDE B
C
CN702810CN816CN805
CN806CN815CN704
CN701CN803