Author Topic: waltham dtv1500v (Read 11500 times)

sparky · « **on:** February 27, 2010,12:41:13 »

hi
help if poss when first switch on sound and pic then
instantlly no pic backlight not on have check for dry
joints checked inverter tx, combined power and invertor panel
sparky

Mulja tv repair portal · « **on:** February 27, 2010,12:41:13 »

Turnip · « **Reply #1 on:** February 27, 2010,13:04:40 »

Hi Sparky,

Not yet listed, seems like 'C' crap, but go on, give us a piccy so we can chuckle - Chris.

jima1vespas · « **Reply #2 on:** February 27, 2010,13:29:41 »

sound familiar to one i had is power supply number 17ips02 if so its a vestel. i will try and find notes

Mulja tv repair portal · « **Reply #2 on:** February 27, 2010,13:29:41 »

sparky · « **Reply #3 on:** February 27, 2010,14:07:07 »

hi
will post pic tomorrow, looks sim to 17ips02
sparky

sparky · « **Reply #4 on:** February 27, 2010,14:41:28 »

hi
chassis 17IPS01-2 have found on another site
suggest fan 7314 on underneath board will
have a look saturday

jima1vespas · « **Reply #5 on:** February 27, 2010,14:50:26 »

checked notes 17ips01-2 c354, c355, c356 all 12j 3kv cured mine

Mulja tv repair portal · « **Reply #5 on:** February 27, 2010,14:50:26 »

sparky · « **Reply #6 on:** February 27, 2010,15:30:17 »

thanks for info will check them tomorrow and let you
no just having a pint
sparky

Contrast John · « **Reply #7 on:** February 27, 2010,15:39:43 »

Hi All
If the caps dont do the trick it`s worth swopping the inverter transformer. Had the same problem with a Sanyo portable using a similar board. Transformer looked ok and had the same resistance readings as one from a scrap board, but swopping it cured the problem.
Regards
John.

sparky · « **Reply #8 on:** February 27, 2010,15:56:24 »

hi
already changed invertor tx
thanks
sparky

sparky · « **Reply #9 on:** February 28, 2010,04:19:40 »

hi jim1vespas

change all caps all working again thanks for info

sparky

Turnip · « **Reply #10 on:** March 01, 2010,11:58:40 »

Hi Sparky,

Note that the caps (with no values suggested) were 12J 3kv types, puzzled, as those don't tend to bulge - Chris - bit pernickety perhaps, but think of our loyal readers.

sparky · « **Reply #11 on:** March 01, 2010,13:26:41 »

hi
the old ones read ok , new ones worked ok
put originals back still no pic
fitted new pic ok
strange , not like the philips cap that split and blows
chopper transister
sparky

Turnip · « **Reply #12 on:** March 02, 2010,12:39:30 »

Hi Sparky,

Congrats, and what were the values of those 3kv caps for folks without a shematic ?

Curious, mainly for Quuq readers - Chris.

sparky · « **Reply #13 on:** March 02, 2010,13:13:10 »

hi
on my cap meter they measure 12pf 3kv wkd
i hope? lucky had a siml panel cracked in half
used as spares
sparky

iedwar07 · « **Reply #14 on:** January 21, 2011,05:25:11 »

Hi,

Thanks to everyone for this info. I can confirm that replacing the 3 caps mentioned - c354, c355, c356 - all 12pf / 3KV cured mine - a Mikomi LCD15796. The caps must be breaking down under voltage - they measure perfectly when tested out of circuit

I found someone selling replacement caps on eBay - a few £s for twenty five of them

Cheers, Ian

Mulja tv repair portal · « **Reply #14 on:** January 21, 2011,05:25:11 »

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Author Topic: waltham dtv1500v (Read 11500 times)

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