13
START
Check C9216 Voltage.
Is the voltage 3.3V?
Check C9224 Voltage.
Is the voltage 1.5V?
Check C9188 Voltage.
Is the voltage 5V?
Check C9203 Voltage.
Is the voltage 1V?
END
DDCON/LDO working normal
no
yes
no
yes
no
yes
no
yes
Check C9207 is
it 1.05V?
yes
no
3-1-2 No POWER - DC/DC converter check
Check C9230 is
it 1.8V?
yes
no
Check 3.3V_MAIN
C9005 Voltage.
Is the voltage 3.3V?
no
yes
3.3V DDCON check
(Change B* Board)
1.5V DDCON check
( Change B* Board)
5.0V DDCON check
(Change B* Board)
1.0V DDCON check
(Change B* Board)
1.05V LDO check
(Change B* Board)
1.8V DDCON check
(Change B* Board)
3.3V_MAIN check
(Change B* Board)
Troubleshooting
Summary of Contents for KDL-50W7 C Series
Page 2: ...LCD TV SERVICE MANUAL COMMON GN1G CHASSIS Segment XM A ...
Page 16: ...16 BMX Board PWB A side Detail 3 3V_MAIN C9005 PIN1 Q9002 ...
Page 28: ...28 Troubleshooting BMX B Side JL9008 3 2 5 LED BLINKING 6x Backlight Error ...
Page 43: ...43 Troubleshooting BMX Probing Points BMX B Side JL8401 PANEL_VCC ...
Page 44: ...44 Troubleshooting F8401 12V_REG BMX Probing Points BMX A Side ...
Page 45: ...45 Troubleshooting IC9013 Pin 4 BL_ON BMX Probing Points BMX A Side ...
Page 46: ...3 4 1 Video Analog Signal Path 46 ...
Page 49: ...49 C6302 R6069 R6303 BMX BOARD A Side Troubleshooting ...
Page 52: ...52 BMX BOARD A Side C6302 R6069 R6303 Troubleshooting ...
Page 54: ...54 BMX BOARD A Side R6016 R6015 C6004 R6001 C6005 R6002 Troubleshooting ...
Page 55: ...55 R6321 R6322 BMX BOARD A Side Troubleshooting ...
Page 57: ...CN5401 R5425 R5427 R5424 RB5405 RB5406 RB5407 RB5408 57 BMX A side HDMI1 Troubleshooting ...
Page 65: ...R5445 R5444 R5443 R5424 65 BMX A side Troubleshooting ...
Page 69: ...R1124 R1062 69 BMX A SIDE Voltage check IR Muffin Pin ...
Page 71: ...R1061 71 BMX A SIDE Voltage check Opt_Sensor Muffin Pin ...
Page 94: ...94 5 3 Connector Diagram Diagrams 5 3 1 43 ...
Page 95: ...95 5 3 Connector Diagram Diagrams 5 3 2 50 ...
Page 96: ...96 5 3 Connector Diagram Diagrams 5 3 3 55 ...
Page 97: ...97 English 2015 07 Sony EMCS Malaysia Sdn Bhd RDCM 9 888 172 04 ...