Power & Def Pwb Circuit Diagram - JVC AV-48WP74 Service Manual

POWER & DEF PWB CIRCUIT DIAGRAM(2/2) SHEET 20
POWER &DEF
PWB(1/2)
SHEET 19
12V
28V/10V
B1
2-44
MAIN PWB
SHEET 10
CN003
GND
14V
5V
B1_POW
OCP
PROTECT
DEF_H P
Y586
OPEN
FB P
Q501-D
H_DRIVE
R528
1.5K
QRG01GJ-152
20V
C529
D524
OPEN
OPEN
EW
GND
GND
R972 R973
1.10k
7.5K
1/4W,1 %
1
/2W*
C971
100 /16
Q971
2SA1208/ST/Z1-T
Y584
R975
D973 BW
22k D972
*3
MTZJ15B-T2
1/2W
*
R977
R978
47k C972
33k
47 /25
GND
QGB1506M1-16
CN010 QGB1505J1-35
Y502
OPEN
R415
150k
R427
R428
BW
OPEN
GND
D583
*3
R412
D406
4.7k
D408
MTZJ6.8C-T
2 OPEN
Q401 100
Y582
*1 R422 R420
OPEN
BW
D404
MTZJ9.1B-T 2
C410
D582
.0022
OPEN R413
GND
OPEN Y581
100k
BW
C409
GND
10 /50
ABL
R205
OPEN
R204
D581
OPEN
OPEN
R206
OPEN
D202
OPEN
GND
Q581
OPEN
R565
22k
GND
GND
C527
47 /25
GND
C524
47p
R523
Y589
OPEN
8.2k
D522
R524
1SS81-T5
R521 6.8k
R526
10K
47
GND
R522
C525
10K
.0068
GND
C523
C522
.0068
/200
680P
QFLC2AJ-682Z
QCZ0122-681
GND
Q501-G
[H] [H]
80Vp-p 4.5Vp-p
Q501
R503
BSN304-T
R501 1.5k
D
1/2W
470
G
C501
S
330p
/500
R502
12k
D501
1/2W
1SS81-T5
GND
GND GND
R504 R505
2.7k 2.7K
3WOMR 3WOMR
T502-3 T502-4 T502-5
[H] [H]
GND
30Vp-p 140Vp-p
VELOCITY MODULATION PWB
J
CN00J
QGA2501C5-05Z SHEET 17
No.52105
Y585
BW
R423 OPEN
R424
OPEN
GND
MTZJ75-T2
C412 C413 22 /16
R425
QENC1CM-226Z
OPEN 22 /16
QENC1CM-226Z
R421
R401
6.8K
5.6k
C402
.0015
MY,5%
C405
.1
QFV71HJ-104Z
R416
Q402 10k Y403 OPEN
*1
D405
R419 *3
R418 OPEN
2.2k
C411
GND
D561
D562
R561
MTZJ7.5S-T2 MTZJ7.5S-T2 4.7k 1/4W,1 %
C562
R562
4.7 /50
5.6k R563
GND
QETN1HM-475Z
1/4W,1 % OPEN
GND
Y588
OPEN
Q521
*1
C526
D521
Q503-B
R525
MTZJ12C-T2 OPEN
1k
GND
GND
C521
680P 2KV
2KV
QCZ0122-681
Y503
OPEN
K501
QQR1139-001
H503
T501
LC31212-001B
QQR1111-001
C504
Y504
OPEN
OPEN
Q503
2SC5904-RL
D505
OPEN
R506
5.6
C503
.22
C502
.01
/200
GND
T502-7 T502-8 T502-9
[H] [H] [H]
140Vp-p 90Vp-p 350Vp-p
AV-48WP74
AV-56WP74
DEF OSC PW
SHEET 18
IC401
LA7876NZ
C406
D401
100
C416
/35
6800P
C401 D402
1SR35-400
1000 /35
C403
5%
18P /500
GND
R402
C404
10k
.1 /200
1/4W,1%
MY,5%
GND
Y401
BW
Y402
OPEN
GND
C201
.33 TF
QFV71HJ-334Z
C802
1000 /25
GND
C801
1000 /25
GND
!
C811
100 /35
GND
Q503-C
[H]
[H]
2Vp-p
1250Vp-p
D507
V11CA-C1
C506
.0045
QFZ0122-452
D506
Y505 Y50
FMV-3FU-F 1 B
B
BW
K502
OPEN
C505
OPEN
D504
H506
RG2A-LFC4
LC30521-001A
K504
QQR1139-001
K50
OPE
T502-10
[H] [H
8Vp-p 1250Vp-p