Sony KD-43X7 F Series Service Manual page 85

2018/05/04 04:12:02 (GMT+09:00)
3.15 No Power DDCON/LDO
DDC: +1.5V_DDR check
START
Check IC6009 Vcc voltage
C6066
Is voltage >19.5V?
Check Vcc voltage
C6040
Is voltage >=5V?
no
Is IC6004 mounted?
Check Enable
IC6019 #pin1
Is voltage >2.5V?
Change DDCON
IC6004
no
Check Vcc voltage
C6040
Is voltage >3.3V?
yes
yes
no
Check
D6002
Is diode ok?
yes
yes
no
Change IC6019
yes
TV Business Division
no
Check
D6001
Is diode ok?
yes
no
Change D6002
yes
Check +5V_MAIN DDCON (IC6009)
no
Change D6001
Check +3.3V_STBY.
G board or IC6010
(Supplementary
information)
85
SYS SET