Hello John West,
I just checked MY first recommended SPARES dealer
(link will be at bottom: "SHOPJIMMY
" for stock... on your
They are out-of-stock
WHICH MEANS MY 1st GUESS
is a popular GUESS.
Your main POWERBOARD
is divided into specific power sections... MOST LIKELY...
you could open your set and (I DO NOT
recommend) be able to measure... the PRINTED voltages around the out-put points WRITTEN around ON the Printed Circuit Board... (but these boards are in-expensive
and the risk of injury is not worth the POTENTIAL savings
(assuming you have the requisite skills & materials).
check your OWN BOARD
Never force any connections...!!
Take lots of pictures ... put EVERYTHING EXACTLY BACK.
and ALWAYS recommendation... always protect delicate SEMI-CONDUCTORS by wearing anti-static wrist straps
... A tiny static spark you might not feel is sufficient to RUIN the diodes in your cars ALTERNATOR (honest... for reals).
serious precaution... Use shopjimmy, amazon, eBay or worse... Searspartsdirect.com... (at page bottom)
Never rely on anything but your OWN circuit board numbers
Serious ELECTRONIC technicians always take STATIC PRECAUTIONS
... and turn off the power (when-ever possible).
It is not improbable that the mainboard
is your issue...
but compared to a "QUALIFIED" (good) home repair technician...
It is a mistake you can afford about 5 more times
and if you can go BACK to your ORIGINAL FAILURE condition... you are doing fine (excellent start)...
Most "home technicians" aren't even good.
As far as I'm concerned... these packs are too cheap to recommend live power tests (YOU can get seriously ZAPPED)...
If the POWER BOARD does not immediately power up... I would suggest you assume 1 (one) of two (2) things...
1. Your "NEW
" board is also bad (or you did not try to select "sources
" when you installed it... (been there.. did that).
2. It was actually your MAIN-BOARD
that needed to be replaced.
Buy one.... TRY IT.
Hey... if you like the set... so you end up with a couple of spare packs... properly handled & stored they will only appreciate in value).
Ill-advised activity... (voltage testing)
If you own a decent volt meter...
and you can look CLOSELY at the TEST POINTS
... YOUR POWER BOARD voltages
are printed on the circuit-board OUTPUTS:
Just keep in mind... you can get hurt
... while causing more damage... with careless handling!!
Take photos... Work safely... Check your numbers
ALWAYS wear ESD (static) wrist bands...
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