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Equipment Repairs => DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder => Topic started by: Davy on November 10, 2017,15:05:54

Title: Panasonic DMR-EX75E' U99 error code'.
Post by: Davy on November 10, 2017,15:05:54

Have Panasonic DMR-EX75  combi DVD hard drive recorder giving U99 error..... anyone a clue, caps. looking OK in power supply?

Dave

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: jordan on November 10, 2017,16:30:59

Check or replace capacitors and IC1501

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: downunder on November 11, 2017,03:32:22

Hi Dave, when the unit is starting up (please wait - hello) does the DVD loader give a single grunt, or quite a few? If so the loader is crook.

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: mend it on November 11, 2017,03:33:17

C1530 and C1533 if C1530 bulged it is worth replacing IC1508

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: Davy on November 11, 2017,08:40:48

First of all, no bulge caps and I manually opened the DVD  tray and it shut itself but yes it does seem to give a couple of clicks, one of these is the laser resetting, I wouldn't think the DVD is the problem here.

Thanks Jordan, for what it's worth I guess no harm in replacing them,  the chip and caps. sure is a common problem with this series. It was only last night I managed to get the service manual, so now I know what to look for, up until then I was working blind. I'll be doing some voltage checks.

Dave

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: Davy on November 11, 2017,10:52:51

IC1508 part number unreadable all I can get is the Panasonic part number, anyone know what it is, thanks.

Dave

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: Turnip on November 11, 2017,11:58:12

Hi Dave,

IC1508 - MD5001T - Chris.

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: downunder on November 12, 2017,01:48:57

Hang on, guys. IC1508 causes error U81 - never known it to cause U99, which is usually the Digital Board.

Bruce

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: Davy on November 12, 2017,06:17:10

Quote from: downunder on November 12, 2017,01:48:57

Hang on, guys. IC1508 causes error U81 - never known it to cause U99, which is usually the Digital Board.

Bruce

Yeah, that's what I came up with, I've ordered one all the same..... and soldered many a 'yakky' joint...   so rather than put it all back, I'll put it all back when the chippy whippy comes.

I wonder if Jordan meant IP1501 a chip fuse as I can't find IC1501, couldn't see it in the parts list either, we'll check IP1501 anyway, it's all in pieces at the moment.


Any clue what to look for on the digi Bruce? Appreciate all the inputs, thanks.


Dave

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: downunder on November 12, 2017,15:52:59

Hi Dave, I suspect that Flash Jordan meant IC1508.

Re the dig. board, it's a brave soul that attempts to repair one of these. I just replace. As a once-was Pana agent, I collected dozens of

dvd recorders, but alas, every one of them has been ratted for loaders and dig. boards. Next one that comes in, I'll be screwed.

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: Davy on November 12, 2017,21:27:35

Sounds like like Canon video cams, I'll wait for the chip to come and see what happens, done a load of re soldering, one leg of a 'leccy lytic'  came clean out, wire links seems worse affected.... bath water mustn't have been hot enough when they dipped the board.

Thanks for trying Bruce.

Dave

Title: Re: Panasonic DMR-EX75E' U99 error code'.
Post by: Davy on November 18, 2017,09:44:35

Change four caps, and IC1508 still same showing U99 error after soldering many connections.

Dave