Author Topic: Panasonic DMR-EZ47VEBK Picture and sound issue.  (Read 1714 times)

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Turnip

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Panasonic DMR-EZ47VEBK Picture and sound issue.
« on: January 31, 2017,11:42:11 »
Hi folks,

Just got one in where cust said it was OK apart from lack of DVB picture or sound. As soon as I pressed any menu option, sound and picture appeared. Pressed 'exit' - No signal, though OK with VCR and DVD.

I've had the problem before, but can't recall the outcome as forgot to write it down - Chris.

Mulja tv repair portal

Panasonic DMR-EZ47VEBK Picture and sound issue.
« on: January 31, 2017,11:42:11 »

downunder

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Re: Panasonic DMR-EZ47VEBK Picture and sound issue.
« Reply #1 on: February 01, 2017,02:54:39 »

Hi Chris,

It may be caused by the massive AV Switching IC on the underside of the board beneath the VCR, but first I'd remove the DVD loader, digital board and their

mounting bracket, and check for obese capacitors thereunder. Don't recall having that specific problem, but caps on the power board have cured a host of

problems on these. The DMR-EX75 and the DMR-EX85 had the bad 680uF that caused loss of DTV, and there's one in this model as well.      Bruce

fix2003

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Re: Panasonic DMR-EZ47VEBK Picture and sound issue.
« Reply #2 on: February 01, 2017,03:25:36 »
this one ??
sound is distorted in digital channels/No sound via tuner / dvd sound is ok  IC3901 C1BA00002379 on video PCB faulty

 IC3901 C1AB00002379 also can also cause video problems
vince

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Re: Panasonic DMR-EZ47VEBK Picture and sound issue.
« Reply #2 on: February 01, 2017,03:25:36 »

downunder

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Re: Panasonic DMR-EZ47VEBK Picture and sound issue.
« Reply #3 on: February 01, 2017,04:55:49 »

Yes, Vince, that's the one, although Chris's fault is slightly different.                    Bruce

Turnip

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Re: Panasonic DMR-EZ47VEBK Picture and sound issue.
« Reply #4 on: February 01, 2017,12:05:29 »
Many thanks Bruce and Vince,

Mentioned I had had the problem before but forgot to note what it was.

Cust said he wasn't getting DVB so I naturally expected an issue, and when signal occurred only with the menu, I suspected it was a fault, especially as VHS and DVD worked normally.

Eventually thought to check output on HDMI and found it was there all the time, menu or not.

Penny then dropped - Set I was using was previously used with HDMI input, so menu, VCR and DVD forced set to go Scart, where it flipped back to HDMI afterwards with 'No Signal' displayed.

Made a note this time - Thanks again - Chris.

downunder

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Re: Panasonic DMR-EZ47VEBK Picture and sound issue.
« Reply #5 on: February 02, 2017,02:50:31 »

Hi Chris,

Think it's called "old-timer's", but I'm glad you found the solution.          Bruce

Mulja tv repair portal

Re: Panasonic DMR-EZ47VEBK Picture and sound issue.
« Reply #5 on: February 02, 2017,02:50:31 »

 

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