Yamaha RX-V671 Service Manual page 145

A B C
RX-V671/HTR-6064/RX-A710
VIDEO 3/3
1
2
Page 131 J8
to DIGITAL (1)_CB82
3
CB391
JK391
4
5
6
VIDEO (6)
7
CB372
8
5 k-ohms
10 W
9
10
146
D E F
VIDEO (4)
JK361
W3601
JK362
REMOTE
CB381
VIDEO (10)
A model
IC391
CB383
IC391
Page 138 K9
to OPERATION (2)_CB456
to POWER TRANSFORMER
W3701B W3702B
Notes)
Safety measures
W3701A W3702A
CB373
IC372
IC371
IC374
G H
IC371: STR2A153
Switching regulator
VCC 2
W3801A W3801B
W3802A W3802A
W3803A W3803A
CB382 W3804A W3804A
W3805B
W3805A
FB 4
IC381
PHONO
IC381
CB376 CB377
VIDEO (3)
VIDEO (2)
I J K
5-8
STRATUP D/ST
UVLO REG
VREG OVP TSD
DRV
PWM OSC S Q
R
OCP
Drain Peak current
VCC
OLP
Compensation
Feedback
LEB 1 S/OCP
Control
Slope
3 GND
Compensation
IC373: TL431ACLPR
Adjustable precision shunt regulators
CATHODE
REF
Vref
ANODE
IC381: NJM2068MD-TE2
Dual operational amplifier
OUT 1 1 8 +V CC
–IN 1 2 7 OUT 2
+ – + –
+IN 3 6 -IN
1 2
–V 4 5 +IN
CC 2
AC IN
W3705A
W3705B
CB375
W3704
Page 134 B7
to DIGITAL (1)_CB948
W3703
Page 134 M8
to DIGITAL (1)_CB947
L M N
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★ Components having special characteristics are marked
and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.