Read Sony KDL-50R555A / KDL-60R555A / KDL-70R555A Service Manual online
KDL-50R555A/60R555A/70R555A 8
SECTION 2 - TROUBLESHOOTING
POWER AND CONTROL BLOCK DIAGRAM
KDL-50R555A
STBY3.3V
AUDIO_12V GND
AC_OFF_DET
POWER_ON
1
2
3
2
3
4, 5
BL_ERR
REG12V_GND
AUDIO 12V
6, 7
8
12
BL_ON
PWM DIMMER
N/C
13
14
15
14
15
AC IN (N)
AC IN (H)
1
2
2
CN6401
A
REG 12V
GND
AUDIO_12V
2, 7
6
BL_ERR
1
12
CN201
TCON_12V
AC_OFF_DET
13
14
14
BL_ON
3, 8
STBY 3.3V
POWER_ON
4
G4 (50”)
CN6101
LCD PANEL, TCON
&
LED BACKLIGHTS
BL_ON
12
N/C
13
14
14
UNREG 24V
1~5
GND
BL_ERR
6~10
11
CN6402
LD
POWER SUPPLY
MAIN BOARD
PWM DIMMER
REG 12V
9~11
5
BL PWM
GND
9, 11
10
LOCAL DIMMING
Click on the first or last page to see other KDL-50R555A / KDL-60R555A / KDL-70R555A service manuals if exist.