Page 26
Block Diagram
VM77S
7
Block Diagram
RG
R
GG
G
BG
B
I501
PRE AMP
LM1267
R
G
B
LM2479
R, G, B
BUFFER
&
DC
RESTORE
I502
Video AMP
LM2469
LED
SCL
SDA
I701
MTV212M(A) 32
H
V
I401
TDA4841
SCL 1
KEY
CONTROL
S702
POWER
DEL
CKT
E
2
PROM
I703
DEG
CKT
Q805
LINE
FILTER
BRIDGE
DIODE
5S0765C
I801
SMPS
LOW VOLTAGE
DROP DOWN
POWER
O/P
TRANS
T802
VERTICAL
O/P
I301
BLANKING
CKT
BRIGHTNESS
CONTROL &
SPOT KILLER
H
DRIVER
BRIGHTNESS
H
OUT
DIODE
MODULATE
FBT
STEP
UP
CKT
D.Y
XRP
80V
-150V
650V
6.6KV
115V
+V
-V
-H
+H
P502
P501
25.6KV
VTTL
GND
VIDEO 5 V
GND
O/R
5V
11.7V
Q811
TDA4863J
5V
H
V
SG
SDA
SCL
O/R
SDA 1
V
H
Q813
dynamic
foucus
650V
G1
ABL
CLBL
HFLB
SDA1
SCL1
SW5 V
OSD
MTV021
5V
OSD
BLK
R
G B
R
G
B
HFLB
ABL
R
G
B
R432
-12V
Vertical Focus
6.3V
12V
I705
78L05
Q701, Q702
5W SW CKT
R DAC
G DAC
B DAC
GND
P503
6.3V GND
GND
115V
80V
11.6V
G1
SDA
SDA
SCL
SCL
SW 5 V
5V
Q805
80V
11.6V
Summary of Contents for VM77S
Page 1: ...17 inch Color Monitor VM77S Service Manual...
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Page 34: ...Printed in Taiwan...
