Schematic Diagrams - Yamaha RX-V667 Service Manual

A B C
RX-V667/HTR-6063/RX-A700
VIDEO 3/3
1
2
W3601
Page 112 J8
to DIGITAL (1)_CB913
3
Page 108 E1
to DIGITAL (1)_CB31
DETECTOR
4
JK391
IC391
AV 5 S VIDEO
IC391
IC391
5
VIDEO (9)
B, G, F models
AC IN
6
W3701B
W3701A
CB375 CB374
7
(71.3)
(0) (165.3)
(165.3)
(70.5)
(325.1)
8
5 k-ohms
(325.1) (165.2)
10 W
(2.9) (17.8)
IC371
9
CONTROL
Primary side ground
10
Notes)
Safety measures
120
D E F
VIDEO (4)
JK361
0
0 REMOTE
JK362
0
0
0
0
VIDEO (7)
U, C, T, K, A, B, G, F models
W3702B
Page 116 J6
to MAIN (4)_W126A, W126B
(R, L models)
W3702A
VIDEO (2)
0
5.6
0
5.6
0.7
SUB-
TRANSFORMER
(0)
(17.8)
IC372
(17.8) 5.0
(5.9)
3.9
3.9
2.5
0
(~)
0
0.3
(~) IC375
G H
IC353
IC353
IC353
VIDEO (3)
3.3
CB379 CB381
3.2
0.3
0.3
0 0
5.6 5.6
5.6 5.6
3.3
0 0
3.3 0
0 0 3.2
0.3
0.7
0.7
0.2
0
3.2 0
0
0
0 0
3.3
0
2.7
0.7
I J K
IC371: TOP254PN
TOPswitch-HX
V
C
CONTROL (C)
Z
C
SHUNT REGULATOR/
ERROR AMPLIFIER
5.8V
I
FB
V I(LIMIT)
CURRENT
LIMIT
ADJUST
ON/OFF
V +V
BG T
MULTI-
FUNCTION (M)
W3801
5.6
5.6 Page 110
L9
V OVP OV/
0
UV
to DIGITAL (1)_CB73
0 LINE
SENSE DC MAX
K PS(UPPER)
K PS(LOWER)
IC374: TL431ACLPR
Adjustable precision shunt regulators
CB382 CATHODE
3.3
W3802
0
Page 112 H9
3.3
REF
to DIGITAL (1)_CB906
2.7
0.4
Vref
ANODE
L M N
0
DRAIN (D)
INTERNAL
1
SUPPLY
SOFT START
5.8V
4.8V
K PS(UPPER)
INTERNAL UV
COMPARATOR
K PS(LOWER)
+ 16
SHUTDOWN
AUTO-RESTART CURRENT LIMIT
COMPARATOR
STOP LOGIC
HYSTERETIC
SOURCE (S)
THERMAL
SHUTDOWN
CONTROLLED
TURN-ON
STOP SOFT GATE DRIVER
START
D MAX
OSCILLATOR
DC MAX
WITH JITTER
CLOCK
F REDUCTION Q
S
LEADING
R EDGE
BLANKING
F REDUCTION
SOFT START
I FB
PWM OFF
I PS(UPPER)
I PS(LOWER)
SOURCE (S)
IC391: TC74VHCU04FT
Hex inverters
VCC
1A 1 14
1Y 2 13 6A
3 12
2A 6Y
2Y 4 11 5A
3A 5 10 5Y
3Y 6 9 4A
GND 7 8 4Y
★ 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.