Hello all,
my Sharp LC32D65E has switched off by itself during normal operation. PSU is RUNTKA456WJQZ and mainboard is DUNTKE685WE. When I have tried to switch it on again nothing happened. Then I have unplugged it, waited for about five minutes and plugged again. Screen remained black, power led blinked green, there was sound for a short time (maybe 2 secs) then power led started blinking red. It blinks continuously at same rate (about 1Hz, I think). After pressing Power button TV goes to OFF state but without red power led. Normally when it was OFF power led should light red. When try to switch it on again same thing happens. During this phase TV does not respond to remote in any way. But if power button on remote is pressed during plugging the main power cable power led blinks fast (like normal operation) and after short time everything become like above mentioned. OPC led is off all the time. This is the problem. What I have did?
I have searched the net and found its service manual. Unfortunately there is not any explanation about this blink for power led. I have checked the voltages and it seems that all are OK. IC1805 (BF33FB1G) is OK also.
Only IC9604 (LV5805M) is defected because I have made a short circuit
But I have learned that TV does not go to ON when it is defected. Relay goes ON and OFF immediately and 13.5V goes OFF also. This is a good lesson for me :spoko:
What can be the problem for continuous red blink of power led? And which parts can be damaged together with IC9604? I have checked other parts around it according to drawing but could not find any defected.
Thank you
my Sharp LC32D65E has switched off by itself during normal operation. PSU is RUNTKA456WJQZ and mainboard is DUNTKE685WE. When I have tried to switch it on again nothing happened. Then I have unplugged it, waited for about five minutes and plugged again. Screen remained black, power led blinked green, there was sound for a short time (maybe 2 secs) then power led started blinking red. It blinks continuously at same rate (about 1Hz, I think). After pressing Power button TV goes to OFF state but without red power led. Normally when it was OFF power led should light red. When try to switch it on again same thing happens. During this phase TV does not respond to remote in any way. But if power button on remote is pressed during plugging the main power cable power led blinks fast (like normal operation) and after short time everything become like above mentioned. OPC led is off all the time. This is the problem. What I have did?
I have searched the net and found its service manual. Unfortunately there is not any explanation about this blink for power led. I have checked the voltages and it seems that all are OK. IC1805 (BF33FB1G) is OK also.
Only IC9604 (LV5805M) is defected because I have made a short circuit
But I have learned that TV does not go to ON when it is defected. Relay goes ON and OFF immediately and 13.5V goes OFF also. This is a good lesson for me :spoko:What can be the problem for continuous red blink of power led? And which parts can be damaged together with IC9604? I have checked other parts around it according to drawing but could not find any defected.
Thank you
