LG Flatron EZ T910BU Service Manual page 32

Block Diagram
V-SYNC INPUT
14
V-sync
AND POLARITY
CORRECTION
(TTL level)
clamping
VIDEO
16
blanking
CLAMPING
AND V-BLANK
HUNLOCK
17
HUNLOCK
OUTPUT
19
SDA 2
I C-BUS
18
RECEIVER
SCL
10
V+
SUPPLY
9.2 to 16V
AND
7
REFERENCE
25
H/C-sync
H/C-SYNC INPUT
15
(TTL level) AND POLARITY
CORRECTION
(video)
(1) See calculation of f range.
H
(2) See Figs 22 and 23.
TDA4841PS
HFLB 1
XRAY 2
BOP 3
BSENS 4
BIN 5
BDRV 6
PGND 7
HDRV 8
TDA4841PS
XSEL 9
Vcc 10
EWDRV 11
VOUT2 12
VOUT1 13
VSYNC 14
HSYBC 15
CLBL 16
Pin Configuration
EHT compensaton
via vertical size
22
100 150
nF nF
1%
5%
23 24 22
VERTICAL
EHT COMPENSATION
V-SYNC
OSCILLATOR
INTEGRATOR
AND AGC
V-POSITION
V-SIZE, VOVSCN
PROTECTION
AND SOFT START
2
I C-BUS REGISTERS
COINCIDENCE DETECTOR
FREQUENCY DETECTOR
PLL1 AND
HORIZONTAL
H-POSITION
OSCILLATOR
26 27 28 29
R
HBUF 10 nF
3.3
(1)
R
2%
HREF
8.2 nF
1%
100nF
- 30 -
PHLIPS 32P
32 FOCUS
31 HSMOD
30 HPLL2
29 HCAP
28 HREF
27 HBUF
26 HPLL1
25 SGND
24 VCAP
23 VREF
22 VAGC
21 VSMOD
20 ASCOR
19 SDA
18 SCL
17 HUNLOCK
EHT compensation
via horizontal size
EWDRV
VSMOD HSMOD
21 31 11
EW-OUTPUT
H-PINCUSHION
H-SIZE AND V-SIZE
H-CORNER
H-TRAPEZIUM
H-SIZE
TDA4841PS
ASYMMETRIC
EW-CORRECTION
HORIZONTAL
AND VERTICAL
X-RAY
PROTECTION
PLL2, PARALLELOGRAM,
PIN UNBALANCE AND
SOFT START
30 1 2
12 nF
HFLB X-RAY
7V
1.2V
Vout2
12
V-OUTPUT
13 Vout1
V-LINEARITY
V-LINEARITY BALANCE
20
OUTPUT
FOCUS
32
6
4
B+ CONTROL
B+
3
CONTROL
APPLICATION
5
H-OUTPUT
8 HDRV
STAGE
9
XSEL
or
(2)