Read Sony KDL-46W705A / KDL-50W705A Service Manual online
KDL-46W705A/50W705A 7
SECTION 2 - TROUBLESHOOTING
POWER AND CONTROL BLOCK DIAGRAM
DC_DIMMER
POWER_ON
1
2
3
3
BL_ERR
5
10~12
REG 12V
23
27
27
28
AC IN (N)
AC IN (L)
1
2
2
CN2
BA2S
GND
1
2
4
5, 6
CN9101
11, 13, 14
12
8, 10
16
18
18
GL2
CN1
LCD PANEL, TCON
&
LED BACKLIGHTS
MAIN BOARD
POWER SUPPLY
LED +
1
LED +
2
CN3
LED +
3
LED +
4
LED -
LED -
CN4
LED -
LED -
1
2
2
3
4
4
3
4
4
NC
55
PWM_DIMMER
BL_ON
13~17
21, 22
GND
STBY 3.3V
AC OFF DET
DC_DIMMER
POWER_ON
BL_ERR
REG 12V
PWM_DIMMER
BL_ON
GND (AU)
STBY 3.3V
AC OFF DET
REG 12V (AU)
GND
REG 12V (PANEL)
7, 9
16
18
18
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