Recently, I have had a deluge of Philips 43PP9225/79 Rear
Projection TVs using the A10PTV2 chassis. I don’t know whether this is down to
their popularity and age (they are now around seven years old) or whether they
are unreliable in a beachside environment (where I am located).
The most common fault by far is due to the Small Signal Board
(SSB) or Panel (SSP).
Before I continue, I have to clear up a confusing point here as
Philips have been using both "SSB" and "SSP" loosely in their service manuals
and literature for years, as though the terms were interchangeable.
Unfortunately, this is not really true because in this rear projection model
chassis they use both terms to refer to quite different assemblies.
Items Covered This Month
43PP9225/79 Rear Projection TV (A10PTV2
42FD9953/69S plasma TV (FM242 chassis)
Grundig Elegance 82
Flat MFW82-31110 MV/Dolby (CUC1935 chassis)
In this case, the analog SSB is the small E1-E7 module that
plugs into an 80-pin "RAM-type" socket (1026) on the SSP (sometimes also called
the Small Signal Module or SSM). LSP still remains as Large Signal Panel (thank
goodness) but what defines the difference between them? Presumably it’s their
size but what then is the definition of a module?
Anyway, enough of that. Philips still have their many "service
modes" and though "CommPair" or "Dealer Service Tools" are unfortunately
unavailable, at least we still have CSM, SAM, SDM and test points (Customer
Service Mode, Service Alignment Mode and Service Default Mode). So, provided you
have a discernible picture, you can access the error codes (by entering
0-6-2-5-9-6-I on the remote).
Once the OSD (On Screen Display) shows the error codes, you
should really clear the buffer and turn the set off with the remote. When you
repeat this procedure, the set will now show only the current error codes and
not the complete history.
Error codes 17, 23 & 33 can all be ignored as they are
considered "normal"! Take my word on this one – a lot of clients who are
eagle-eyed curiously watch this procedure and quiz me on this and afterwards say
they are not satisfied as they don’t want a set with any errors. These are the
same guys who buy a demonstrator set that they saw working perfectly but then
reject it when they take it home because they don’t want a set that has
"ghosting". Explaining about faulty aerials won’t wash – after all, "my 30-year
old TV always gave perfect pictures".
Many of the error codes are also duplicated in the "Blinking
Standby Red LED" so that you can deduce the error code even if there is no
picture. This can be quite helpful on occasions.