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17PW25-4

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Keith:
There are basically 2 versions with the SSB requiring 5V or 3V3.

The 3v3 version has D832 fitted on the print side SMD device, also C828 and L805 on the component side.

The yellow label on the board will have a number starting 23xxxxxx or 20xxxxxx, so far from my experiences 23xxxxxx is 5V and 20xxxxxx is 3v3, although this may not be 100%. The components is the obvious way to check.

There may be other differences for screen size but have not noticed any problems with boards yet.

These boards are very cheap if you are trade, so unless it has an obvious and easy fault, they are not worth repairing.

Keith

Turnip:
Thanks Keith,

Eventually went to Wiltsgrove, a new board was £27 + Vat - post free, as had bought other bits so postage didn't apply.

Noted that SJS gives some useful information as to compatible boards that helped me sort my Wiltsgrove order,

'Wiltsgrove' don't give any information - ever - Had words with them several times, but they remain pretty close - giving nothing away that would help folks trying mend stuff.

Turnip:
Hi folks, and again thanks.

Gathered from a Quuq Hero that the 22/450 'Main cap' often causes the PFC/Inverter side to pop, and is best changed whenever one gets one in to mend whether it looks distressed or not.

Found some in China at £3.38 for six inc. post  - Wiltsgrove - 65p each plus VAT and Post.

Was amused to note the cost of genuine Panasonic 22/450 caps on Fleabay - Chris.

Keith:
Hi Chris,

It's not worth fitting cheap capacitors from ebay or china, they won't last long! you can get genuine Panasonic caps from CPC (CA04997) for £6.36 for pack of 5, personally never had this item C821, fail.

Keith

Turnip:
Hi Keith, and thanks,

Can't say I've had a duff C821 myself, just a suggestion from a Quuq hero who seems to have some considerable experience of faulty 25-4 boards, and feels that the cap can be/is suspect with an PFC/Inverter supply Pop.

As to caps generally, tend to use whatever is cheapish first, then if any problem, quickly source something better. Wiltsgove low ESR caps pretty good - never yet a failure.

Customers naturally get peeved with premature failure, so try keep on the ball - Chris.

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