2-7
LCD control section
LCD_5VEN
LCD_VGHEN
LCD_VGLEN
LCD_ILED
LCD_PWM
LCD_PWR_ON
C341
NI
R317
100k
0.5%
R311
NI
VCC3.3V
R333
20k
0.5%
IC330
OPA725AIDBV-X
1
OUT
2
V-
3
+IN
4
-IN
5
V+
R316
200k
0.5%
IC310
TPS65120RGT-W
1
EN
2
RUN
3
ENVGL
4
ENVGH
5
FBL
6
FBM
7
AGND
8
VMAIN
9
FBH
10
VGH
11
BOOT
12
PGND
13
SWP
14
SWN
15
VIN
16
GATE
17
PWPD
R301
100k
C340
1
R322
1M
0.5%
L340
22
C300
1
R330
10k
0.5%
R321
390k
0.5%
IC340
TPS61062DRB-W
1
GND
2
EN
3
ILED
4
FS
5
PGND
6
SW
7
OUT
8
Vin
9
PWPD
GND
R331
4.7k
0.5%
VCC
C314
0.22
L310
10
R332
560
0.5%
R320
100k
0.5%
C312
1
R312
NI
C313
0.22
C311
0.22
R313
NI
C342
0.22
R315
100k
R319
100k
0.5%
C301
1
R343
24
1/2
R335
20k
0.5%
R318
309k
1%
C310
2.2
R334
4.7k
0.5%
R340
0
R341
0
R342
NI
D310
RB521S-30-X
R336
22
IC320
NI
1
OUT
2
IN
3
CFLY-
4
GND
5
CFLY+
C321
NI
C330
1
IC300
BD6524HFV-W
1
VIN
2
VIN
3
EN
4
GND
5
VOUT
6
VOUT
7
THPD
LVB20059
3.3V
0V
3.3V
3.3V
3.3V
3.3V
0V
3.3V
0V
1.2V
3.3V
0V
0V
0V
5.0V
1.2V
18.0V
5.4V
0V
3.1V
3.0V
3.3V
1.7V
0V
0V
3.3V
4.6V
19.3V
4.3V
3.3V
0V
0V
0V
2.0V
0V
1.7V
5.0V
1.8V
Содержание KV-PX9BJ
Страница 21: ... No MA272 1 21 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING ...
Страница 27: ...3 5 MEMO ...
Страница 32: ... M E M O ...
Страница 50: ... M E M O ...