Read Sony KDL-40R450A / KDL-46R450A Service Manual online
KDL-40R450A/46R450A 7
SECTION 2 - TROUBLESHOOTING
POWER AND CONTROL BLOCK DIAGRAM
GND
VCC_12V
STBY 3.3V
POWER_ON
1, 3
2
4
4
5, 7
AC_OFF_DET
BL_CNTRL
BLKT_EN
AUDIO_12V
6
8
8
9, 11
10
AUDIO_12V
NC
BKL_ERR
VCC_12V
11
12
12
13, 15
14
NC
16
AC IN (N)
AC IN (H)
1
2
2
CN6401
A
STBY 3.3V
GND
VCC-12V
1
2, 7, 11
3, 8
BL PWM
AC_DET
4
5
5
CN201
TCON_VCC
10
AUDIO_12V
12
POWER_ON
6
BL_ERR
13
BL_EN
14
GL5 (46")
CN6101
LCD PANEL, TCON
&
LED BACKLIGHTS
LED +
1
LED -
2
CN6801
GL4 (40")
MAIN BOARD
POWER SUPPLY
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