Yamaha DVX-S120 Service Manual page 59

A
Q Q
3 7 6 3 1 5 1 5 0
DVR-S120 BLOCK DIAGRAM / ブロックダイアグラム
1
DIGITAL
See page 75 SCHEMATIC DIAGRAM
SUB
See page 79 SCHEMATIC DIAGRAM
IR Remote
U351
2
STANDBY ON
SW333
Volume
84,85
SW331
Key
SW332
SW334~341
Audio Selector 81,82
IC121
3
FL Driver
IC221
T E
L 1 3 9 4 2 2 9 6 5 1 3
FL Display
V221
MAIN
See page 76 and 78
SCHEMATIC DIAGRAM
4 To DVD
5
w w w
.
6
B C
IC381
73
Digital Amp Prtect(EPR)
21
DC Protect(DC_PRT)
74
23
Head Phone Detect
75
Power Down Detect(PW_DN)
93
Main CPU Temperature Detect
M30624FGAFP
92
94
Power Voltage Detect 1(Vl_PRT)
95
AC Power Voltage Detect (AC_PRT)
97
Power Voltage Detect 2(AC_PRT)
49
Power Relay Output(POW_RY)
20 28 29 30
35,37,50,54
IC383
34 35 36 37
5
13
14 Sub CPU
M38517FBFP
x a o
y
i
http://www.xiaoyu163.com D E
8
SUB
See page 79 SCHEMATIC DIAGRAM
+B
FAN+24V
FL-21V
–B
DVD+12FE
DVD+12BE
Analog+12
Video+5
Video–5
Analog–12
Q Q
MAIN
3 7 6 3
See page 76 SCHEMATIC DIAGRAM
DSP,FLD+5
DAC+5
DVD+5BE
DVD+5FE
RESET
PW_DN
u 1 6 3
.
http://www.xiaoyu163.com
F
2 4
9 9 8
C52 D8
Q19~21
C53
Q22
2 1
IC275
3
C290 C292
OUT IN
IC271
D282
COM
D284
OUT IN
IC273
COM
D283
C295 C293
C296 C294
COM
OUT IN
IC274
COM
OUT IN
IC272
1 5 1 5 0 8 9 2 4
D128
2 1
IC127
C210
3
D289
2
1
IC276
3
C302
FLAC4V+
FLAC4V–
S5BK
Q272
D279
C286
Q271
D280
C279
D278
Q273
Q274
POW_RY
C287
m
c o
G H
DVR-S120/NX-P120
2
9 9
9 8 2 9 9
RY271
T271
59