JVC AV-20F475 Service Manual page 48

S751
QSW0847-001
Q751
*3
R756
1.2k
D751
R751
LG22440
1k
POWER / ON TIMER
KEY1 LED
T2
-T2
201 R241 R227
22k X 100k
D353
*5
R359
10k
C221 C241
10/50 0.01
05 C222
0k 1
R839
C237
C835 2.2M
.01
X
C836 C837
X X
R837 R838 C506
C507
X X .01 47/25
R834 R835 R836
100 100 D501
100
MTZJ3.3A-T2
R506 R507
470 560
R282
R285
2.2k Q283
C282 330
X
Q282
*2
R283 L281
820 QQL29BJ-150Z
C283
C278 33p
Q281
.01
*1
R286
1k
C277
.01
Y295
X
R295
R292
330
C276 2.2k
K254
C292
QQR0582-001Z
.01
X
C275 47/25
Y294
0
Q292
C274 180p
*2
R264
820 Q291 R293 R294
C273 *1 470 X
.01
C272 .01 L291
R263
QQL29BJ-150Z
100
C293 R296
47p 1k
K255
QQR0621-002Z
Y281 Y292
X X
R695
OPEN
C691
R696
OPEN
OPEN C690
Q690 R693 D690
OPEN OPEN OPEN
OPEN
R694 R698 D691
OPEN OPEN OPEN
INPUT-1
D803
D807
*6
*6
J001
QNZ0454-001
C803
1/50
R683 R684
22K 22K R803
C689
75
33/50
Q681
*2 Q682 AUDIO OUT
*2
J002
QNN0348-001
C681 R681
10/50 220
EXTL
C694 D681
2
X *6 R691
82K
C682
10/50
EXTR
C695
D682 R692 R682
X
*6 22K 220
*2
Q683
Y855
X
R685 Q684 R686
22K *2 22K
IC201-41 IC251-4
p 3 Vp-p 1.2 Vp-p
S752 S753 S754 S755 S756
QSW0619-003Z QSW0619-003Z QSW0619-003Z QSW0619-003Z QSW0619-003Z
R758
100
R757
R752 R753 R754 R755
100
1k 1.5k 2.7k 5.6k
Y630
0
C601
R602
X
X
10/50
Q624
X
R603
X
R601
X
C622
10/50
Y631 x
Q352
*2
R354
330
R356 C352 D352
12k 47/25 *6
R215
5.6K
*1
R288
0
Q211
*2
R212
C211
2.7K
47/25
R217
R216
1K
5.6K
R287
1K
R232
3.9K
R231
1.8K
Q233
*2
R298 C223
C233
0 0.01
68p R233
Q293 3.3K
*1
L232
R234
1.5K
QQL29BJ-560Z
R297
Q232
1K
*2
R235
1k
Y808
X
Y132 BW
D801
*6
INPUT-2 Y852
X
COMPONENT
D834 C834
VIDEO
*6 10/50
J003
C801 QNN0349-002 C831
10/50 .33
D802 CMP_Y
*6
R831 D831
75 *6
R801
68 CMP_PB
C802
10/50
C832
.1
R802 D832
75 *6
R832
75
C683
10/50 D683
CMP_PR
*6
C696
X
C833
.1
D833
C684
C697 D684 R833 *6
10/50
X *6
75
IC251-17 IC251-20 IC851-10
0.5 Vp-p 1.1 Vp-p
INPUT-3
J007 J006 J005
CEMN072-003 CEMN065-002 CEMN065-001
QNN0282-001 QNN0281-002 QNN0281-003
IC751
GP1UM281QK
R687 R688
220 220
C688
C687 10/50
R689 R690 R804
10/50
C751 X X 75
D687 D688
47/25
*6 *6
C804
C692 C693
10/50
X X
C752
X
D804
*6
R805
100
LC801
QQR1199-001
!
IC602 AUDIOAMP
C639
OPEN
C621 C627
1uF
C629
R621 1uF
1000/25
10K
C623
R622
OPEN
33K
GND
Q622
C640
X
OPEN
R623
X
C624
X
Q623
*1
R624 R630
10K 10K
R625
C625 D622
27K D623 R628
OPEN *5 2.2/25
*5 3.3k
C633
R631
220/25
C634 10K
R626
10/50
X
Q621
R632
X
100K
C626
X
R627
10K
D621
*5
Y605
0
R135
1.5k
L131
VTV
QQL29BJ-220Z
R134 R132
470 330
C131
.01
Q131
*1
R133
820
CF131
QAX0639-001Z
YOUT
C120
.47/50
COUT
IC101
M52342FP-X
R117 R111
27k 390k
R115
100
AFT
R113
100
R112
330k
C113 C114 C124
.01 .01
R124 R122 R123 R121
330k 330k 330k 330k
Q001
*4
AGC-M
L101
QQLZ014-R39
R103 R101
QRE121J-101Y 5.6k
C104
.01
Q101
2SC5083/L-P/-T
D685 D686 C101
CF001
*6 *6 .01
QAX0349-001
C105
.01
C698 C699 R104
X X 18
R102 R008
1.8k 82
C102 R105
.01 27
C685 C686
10/50 10/50
K001
QQR0582-001Z
C004
470/6.3
SDA0
SCL0
Y686
X
R005
0
Y685
X Y133 R006
QRE141J-0R0Y
J004
CN00C
QNN0348-001
QGA2501F1-06
Y856
X
Y854
0
IC851-30 IC851-32
1.1 Vp-p 1.8 Vp-p 1 Vp-p
No.YA052
HEADPHONE
J008
QNS0155-001
R639 R640
270 270
!
Y603
X
Y604
CN00S
X
QGA2501C5
!
-04Z
A_VCC
HS602 LC32599-001A
GND
C638
1000/25
D625 R636
X X
C632
R635
D624
X
X
C637
1000/25
GND GND
R638
1.2/3W
A_VCC
Y638
OPEN
C636
R633
OPEN
Q625 Q626
*2 OPEN R634
OPEN
C635
X
C167
.01
R165 R167
22K 1K
C163 CF161
47p CH QAX0642-001Z
Q161
*2
C164 BUFFER
47p
CH R166 R168
10K 100
R164
C165
1k
.01
R169
R131 560
L161
1k
QQL29BJ-220Z
C119 T111
680p QQR0907-001
R116
68
C166
.01
R161
C116
3.3k
.22
.01
C161 C162
10/50 10/50
SF101
QAX0723-001
K101
QQR0582-001Z
!
TU001
QAU0274-001
C003
47/35
Y101 0
C005
.01
Y102 X
C002
.01
R004 C006
220 X
R003
220
C007
X
C001
22k 4.7/50
IC851-34 IC851-36
1 Vp-p 1.8 Vp-p
A_VCC
GND
V-OUT
V-OUT
HD
HD
FBP
FBP
ABCL
MAIN_PW
9V
BT
5V
STBVCC
IC851-38
2.3 Vp-p
2-6