Power And Control Block Diagram - Sony KDL-50W700B Repair Manual

POWER AND CONTROL BLOCK DIAGRAM

DC IN
KDL-50W700B/55W700B
LD BOARD
CN2001
+19.5V(12V) 30
GND 29
+19.5V(12V) 28
+19.5V_HOLD(12V) 27
GND 25
+19.5V_SS(12V) 24
GND 23
GND 21
REG+12V 20
GND 19
BL_ERR 17
POWER_ON 16
AC_OFF_DET 15
LD_MODE_SW 14
STBY+3.3V 12
GND 11
PWM_3 9
IP_REF 8
PWM_2 7
FB_REF 6
PWM_1 5
LD_STBY 4
PWM_0 3
GND 2
GND 1
AC_IN
1 DC-IN
2 DC_GND
LD
SECTION 2 - TROUBLESHOOTING
21 29 30
30 25 29
20 17 28
18 23 25
29 21 24
19 19 23
25 11 22
24 30 21
17 28 20
23 24 19
28 27 18
11 20 17
12 1 16
1 2 15
14 12 14
22 15 12
5 16 11
8 4 9
4 8 8
7 6 7
3 9 5
9 7 4
2 5 3
15 3 2
16 14 1
MAIN BOARD
CN9101
GND
GND
BL_ERR
GND
GND
GND
GND
+19.5V(12V)
+19.5V(12V)
+19.5V_SS(12V)
+19.5V_HOLD(12V)
REG+12V
GND
GND
STBY+3.3V
AC_OFF_DET
POWER_ON
LD_STBY
IP_REF
FB_REF
LD_PWM_3
LD_PWM_2
LD_PWM_1
LD_PWM_0
LD_MODE_SW
BAXL
PANEL
MODULE
7