I hear a relay click and DP40 and DP50 leds light then fade. I assume the tv is going into a shutdown. I monitored the secondary voltages and they all come up normally for a second before shutdown.
Hitachi 57S715
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Re: Hitachi 57S715
It was quite common for the convergence ic's to go bad, shorted. Try unpluging PPDC plug (has 3 large wires) from the convergence amp board, should be the board on the right with 2 large heatsinks on it. If the tv comes on with no convergence correction, teh stk*** ic's are bad, (only one is most likley bad but replace both) -
Re: Hitachi 57S715
check dp32 bridge rectifier and cap cp03 for bad connections.
also does the power led on the front of the tv stay on?
also check the pico fuses, ep01 & ep02, but I think they will be ok.
I have'nt worked on one of these sets in a long time.Last edited by R_J; 04-23-2014, 09:30 PM.Comment
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Re: Hitachi 57S715
I extracted the Power and Deflection schematic from the (32meg) manual it might help.Attached FilesComment
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by massimomaxChiedo aiuto per problema a TV Hitachi 32HE4500 che non si accende più,ho bisogno del firmware della scheda madre vestel 17MB211S codice pannello VES315UNVL-2D-N11 ?
spero che qualcuno può averlo per riprogrammare eprom. grazie
Post in English !!!
I ask for help with a problem with a Hitachi 32HE4500 TV that no longer turns on, do I need the firmware for the Vestel 17MB211S motherboard, panel code VES315UNVL-2D-N11? I hope someone can have it to reprogram eprom. Thank you
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someone give me idea plz08-20-2024, 03:50 AM -
by dragometinTV Model: Hitachi 40HYC42
Power Supply: 17IPS71
MainBoard: 17MB95M
Panel: VES400UNDS-2D-NO3
When the set came in it was dead. Fuse was open primary side and the power mosfet was shorted. So I ordered a new power supply. Now it turns on, only displays "Hitachi" and then power off red and blue led flashing.
I had to modify the 0ohm resistors in the led backlight of the new PS like the original power supply.
Is there any variants on 17IPS71 power supply's?
UART output pins 10 and 12 on scart connector:
Code:12:24:04.595
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