View previous topic :: View next topic |
Author |
Message |
jjay Guest
|
Posted: Wed Jul 08, 2009 6:02 pm Post subject: Philips 42PF7320 sound but no picture |
|
|
Hello. I have a Philips 42PF7320 which has stopped working. The unit switches on, solid green light, no flashing, but no picture. ( screen lights up slightly but blank background) I get two relay clicks, one slightly after the other and it appears that the screen powers up, but no blank picture and no sound. I have had the power board out and checked it, replaced a resistor which was blown on power supply but cannot find any issues with the capacitors, reflowed components on y sus no evidence of damage at all. Any ideas would be greatly appreciated Thanks |
|
Back to top |
|
|
minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
|
Posted: Thu Jul 09, 2009 1:33 am Post subject: |
|
|
You do or don't have sound? |
|
Back to top |
|
|
jjay Guest
|
Posted: Thu Jul 09, 2009 6:02 am Post subject: blank picture |
|
|
hi minnie yes i do have sound. |
|
Back to top |
|
|
jjay Guest
|
Posted: Thu Jul 09, 2009 8:44 am Post subject: |
|
|
i have noticed as well if i press the service code on remote the green led blinks 8 times.
maybe that might point to problem? |
|
Back to top |
|
|
jjay Guest
|
Posted: Thu Jul 09, 2009 2:46 pm Post subject: |
|
|
another note the service manual states 8 blinks is:
I2C error while
communicating with
the Scaler
EEPROM |
|
Back to top |
|
|
jjay Guest
|
Posted: Fri Jul 10, 2009 7:43 am Post subject: |
|
|
just a update i have ordered a new epprom. as from that 8 blink error seems like epprom is faulty or corrupted.
can i just replace it or will i need to program a philips dump on new epprom before fitting?
if so anyone any ideas what dump i need?
thanks |
|
Back to top |
|
|
minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
|
Posted: Fri Jul 10, 2009 10:09 pm Post subject: |
|
|
I'd be looking at the digital main board. |
|
Back to top |
|
|
Guest
|
Posted: Sat Jul 11, 2009 11:31 pm Post subject: |
|
|
regarding the M24C32-WMN6P serial eeprom.
does the philips M24C32-WMN6P eeproms have dumps on them?
as i never ordered the new eeprom from philips i ordered a new M24C32-WMN6P eeprom but made by STMICROELECTRONICS.
i tryed it but made no diffrence in set.
just wondering if you need the proper dump |
|
Back to top |
|
|
|
|