Service manuals, schematics, eproms for electrical technicians

PANASONIC P50EC1 TXT5F68

MONITOR - EPROM
Type: (RAR)
Size
1000.0byte
Page
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Category
MONITOR
EPROM
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  • Also known:
    PANASONIC P-50EC-1 P50EC1 TXT5F68 50 EC TXT 68
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  • See related repair forum topics below. May be help you to repair.
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Relevant MONITOR forum topics:
Panasonic Plasma TH-85PH12E Error code "4 blinks "
This elderly monster arrived with the error “ 4 blinks “ which the manual suggest is a power board fault There are TWO power boards and a standby power board inside.
On removing rear cover there were two swollen 220uf caps on the standby board, sadly replacing them the 4 blinks remained.

Swapping the two power boards over[ as they look identical , gives a “ 2 Blink “ error , the limited info in the manual suggesting that the fault is on the lower board [ main 2 ].
Both boards have a PFC voltage of around 380 volts at switch on before the relays click out,  I have done cold checks on both boards and there are no obvious differences.
The manual has only a block diagram of the power supply so it’s difficult to be sure of values / voltages.

My question is has anybody seen or worked one of these or similar beasts

Many thanks Ken
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