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Sony 32FQ70 Problems

robbynaish

Active Member
Hello everyone,

i think last night my beloved Sony died.
I explain the problem.

They were 2-3 days that sometimes, but rarely, I saw as horizontal lightning
on the video , upper position of image.

Last night I just turned on, it has remade .... and it went off.


Now when I turn on, I hear ONLY the audio for 2-3 seconds, then make eight red LED flashes and then goes out

Searching online I found this, but here it says that 8 would blink an audio problem, so do not know if this table is for my Sony

Sony TV Blinking Codes & What It Means When the Standby/Timer Light Flashes

Sony problem:Unit is dead, No blinks - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).

Continuous blink once a second, no pausing - No reply from the jungle IC301 (data bus is busy, shorted to ground, or held high), IK video path is defective.


One blink - not used for the self-diagnosis


Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.


Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.


Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505


Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the Cboard, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.


Six blinks - No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.


Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.


Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402.


Nine blinks - Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator. Make sure the part number is -12 or -13.
Intermittent problems? This is a great feature. You can also bring up these fault codes on-screen to see a list of the problem numbers with the abbreviation of the problem and the number of times this problem has occurred. This is slightly different than entering the service mode. To see the diagnostic screen, press the following buttons: Display, Channel, 5, volume Minus, ( not plus ) then Power. This brings up a screen with a list of the problems and number of times they have occurred. Each of the problems named, are abbreviated as, "OCP", "OVP", "V STOP", ETC. We have repeated them in parentheses in the text for the "Blinks" described above so you can correlate between the diagnostic screen and the blink codes.

Now that you know about these self-diagnostics, how do you use them? Say that you have a set with a black screen. You see that the LED is blinking four times. This would tell you that you have no vertical sweep, which is why the video is muted. If it was blinking 6 times, you would know that you have a horizontal fault. It's not a sure cure..


IMPORTANT: After you repair the unit, you MUST clear the values on this diagnostic screen. These codes do not reset themselves after the fault is corrected, so if you don't clear them, you'll be seeing "old" fault codes the next time you enter this screen. Clearing is done by going into the service mode (display, channel, 5, volume plus, then power ). Press 8 and Enter, which returns everything to the factory preset condition.

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Sony TV Blinking Codes & What It Means When the Standby/Timer Light Flashes




What do you suggest? I love this TV and i dont want trash it. Do you think wil be so expensive repair it?

Thanks to all and sorry for my English

Ale
 
Last edited:

robbynaish

Active Member
Guys,

i add some pics to understand which board i have

Thanks

sony00015.jpg


sony00014.jpg


sony00013.jpg


sony00011.jpg


sony00010.jpg


sony00009.jpg


sony00007.jpg


sony00006.jpg


sony00005.jpg


sony00004.jpg


sony00003.jpg


sony00016.jpg


sony00002.jpg
 

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