Read Sony XBR-55X900A Service Manual online
XBR-55X900A 8
SECTION 2 - TROUBLESHOOTING
POWER AND CONTROL BLOCK DIAGRAM
BL_ERR
LD_ERR
BL_ON
1
2
3
4
AC IN (N)
AC IN (L)
1
3
CN6402
CN6401
CN6001
AC-L
3
AC-N
1
1
2
3
4
CN6102
CN6602
3
1
CN6101
VLED_VCC
GL_CTRL
VLED_GND
LD_ERR
1~4
7~9
11
12
REG_12V
14
E-LD
BOARD
DIGITAL_STBY
CN6601
2
5
AU_GND
24
25
TCON_12V
28
STBY3.3V
TCON_GND
AC_OFF_DET
BL_ERR
3
DIGITAL_STBY
REG_12V
26
27
GND
REG 12V
5
6
5
6
CN9101
BAFS/BAF2S
G7
MAIN POWER AND
CONVERTER
MAIN BOARD
PFC, PRI_VCC AND
STANDBY POWER SUPPLY
6
SENSE GND
BL_ON
6~11
GND
12~17
18~20
21~23
TCON_ON
STBY GND
POWER_ON
CN4803
20
5
4
TCON_12V
1
STBY3.3V
AC_OFF_DET
BL_ERR
DIGITAL_STBY
REG_12V
3
2
BL_ON
6~8
GND
18
12~14
TCON_ON
POWER_ON
19
REG_12V (AU)
1~3
GND (AU)
4~6
5
4
20
G6
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