Defection Ckt; Circuit Diagram Of Defection - Acer V551 Service Manual

Acer V551 (new) CRT Monitor Service Guide

1. Defection CKT

(1) Circuit Diagram of Defection

HDRV
EWDRV
R257 1.8K
V2
R258 180
V1
R259 180
V-SYNC
R201 1K
H-SYNC
R202 1K
CLBL
16 15 14 13 12 11
CLBL
HUNLOCK
17
HUNLOCK
SCL
R209 100
SDA
R210 100
VSMOD
(OPEN)
BLANK
Q210
R268
(OPEN)
(OPEN)
+12V
R205
R204
2.2K
10
1/2W
(FS)
+
C201
100U
25V
(EL)
9
10
VCC
DGND
HSYNC VSYNC VOUT1 VOUT2 EWDRV
TDA4857
SCL S DA ASCOR VSMOD
VAGC VREF VCAP
18 19 20 21 22 23 24
R211
150K
C207
C206
C208
R252 0.22U
R212
4700P
0.1U
56K 100V
22K
50V
100V
(PE)
(1%)
(D)
(PE)
Confidence and Property
Chapter 2 Circuit Operation Theory
+40V
C235
R269
0.1U R203
ZD201
50V 100K
30V
(D)
+6.3V
VR201
(OPEN)
(HVADJ)
R208
R265
137K
(OPEN)
(1%)
C202
1500P
100V
(PE)
8 7 6 5 4
BIN
HDRY PGND BDRV
BSENS
IC201
SGND HPLL1 HBUF HREF HCAP
25 26 27 28 29
R214
2.1K
(1%)
R215
R213 2.61K
10K (1%)
C210
C211
1000P
C209
O.01U
100V
0.33U
100V
(PE)
100V
(PE)
(PE)
+12V
D201
1N4148
R206 R247
10K 10K
Q204
H945
+ C223
R207
100U
6.8K
25V
(EL)
R217
+
C205
R219
120K
3 2 1 47U
23.2K
(1%)
25V
(1%)
(EL)
BOP
XRAY HFLB
R222
R220 27K
2.7K 1/4W
HPLL2 HSMOD FOCUS
30 31 32
R223
39K
R253 R254
9.1K 47K
C213
C212 +
(OPEN)
6800P
50V
100V D203
(EL)
(PE) 1N41481N4148(OPEN)
BDRV
TP3 TP4
+40V
R218
51K
(1%)
HFLB
AFC
HSMOD
R255 R256
22K (OPEN)
D204 D205
SC2
SC1
SC0
2