Hi all,
This TV has 3 HDMI ports and only HDMI 1 is working OK.
HDMI 2 & 3 Eprom IC 24c02 were found to be leaky. I replaced blank eprom ICs But both HDMI 2 & 3 are not working.
Do I need to replace with programmed ICs.
Please advice.
unicor
New Member
Last Activity: 11-16-2024, 09:28 AM
Joined: 07-27-2010
Location: MUMBAI
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Lg 42lh50yr
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Re: Akai 40lw7
No manual Sir, but i traced it back to pin 44 of microcontroller TP2808HQN.
Any help from ur side is appreciated.
Thanks -
Re: Akai 40lw7
Hi,
The main board does not give the power ON voltage.
The 24V comes if i force the power supply On.
Thanks.Leave a comment:
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Akai 40lw7
Hi all,
The TV set is in standby. it does not switch ON.
The main mother board is CULTRAVIEW CV028GH_MA_V3.
The power supply is okay. 12V comes to the main board. 24V also comes if i force the power supply ON.
The 5V are present on the main board.
Pin 43 of microcontroller TP2808HQN becomes low when power On is pressed on front panel but Pin 44 does not go low to switch on the TV.
Can the memory IC cause the problem.
Any help.
Thanks. -
Re: Samsung la26r71bm
Dear all,
The set was in STD-BY.
I replaced the memory ic 24c32n.
The set started but when i put it in STD-BY it did not start again.
The original no was 24c32w. Is there a difference between the 2 ICs.
Thanks
unicorLeave a comment:
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Samsung la26r71bm
Dear all,
This TV is in standby mode. The A5V and A3.3V are present on the MICOM board.The base of Transistor Q801 is high.
Could the problem be with the memory IC. or MICOM.
Please help.
Thanks & Rgds.
UNICOR -
Re: New Members - please post your introductions here
HI folks,
I am UNICOR from INDIA.
I am an Electronics engineer working for SONY (Broadcast equipments). This is a very interesting forum and I get to learn a lot here.
Keep it up.
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