Hitachi 46W500 Training page 32

NOTE: V MUTE 1 becomes
V MUTE 2 on Signal PWB 2 & 3
Then V MUTE 1 again on CRT PWB
PSC
Turns on Q856
which removes
11
base drive for R,
V MUTE 1
G and B drivers.
CRT PWB
Simply grounds out Audio
PST1
coming from the Monitor
Outputs.
38
Rec Mute To QV08, 09
Terminal PWB
JA01
CA54 CA55
R
CA52
L
QA51
CA51
Out To
RA55
Hi-Fi
RA66
QA54
Micro Processor
I001
70
Rec Mute
49
V MUTE
71
A MUTE
MAIN TUNER
U301
DP-3X Series Chassis AUDIO and VIDEO MUTE Circuit
All Chassis
But the DP-36
R5K6
D516
D405 DP-36 Only
Right
Left
DA51
DA53
DA52
DA54
V MUTE 1
SPK OFF
I010
3 17
Level
Shift
7 13
Ft. Audio Control
25
A MUTE
A MUTE
FC H Blk
D406
V MUTE R564
Q525
C545
D508
D509
D507
HVcc 9.3V
D510
R5A5
Q528
Q527
R5A3
R5A1
V MUTE 2
PPS4
DA06
DA07
17
CA06
23
IA01
QA01
8
CA19
RA10
DA05
DA04
RA11
DA03
FC V Blk
Q523 Q522
D503
39
FBP In
R561
HVcc 9.3V
565
PPS3
R598
8
Q526
R5AD
R597
R599
C546
D511
4
Horizontal Sweep Loss Det.
R5A7 Vertical Sweep Loss Det.
C547
R5A4
(From Deflection PWB)
See Sweep Loss Detection
Circuit Diagram for details
R546
Q529
RAA4
QAA2
RAA7
4
CAC5
RAA8 CAC4
CAA4
RAA2
Right
2
RAA1
Left
3
CAA2
QA02
I501
Rainforest
PPD3
8
H Blk
Deflection
PWB
4
Spot
"SPOT"
Mute = Lo
11 Mute
IAA1
R In R Out
4 7
2 L In L Out 12
FRONT L & R
Audio Output