Philips EM5A NTSC Service Manual page 31

Colour television
Table of Contents

Advertisement

www.freeservicemanuals.info
Phenomenon
Picture with horizontal
stripes.
No menu, no OSD.
Various symptoms, due to
missing local supply voltage.
Service Modes, Error Codes and Fault Finding
Possible Cause
Pixel Plus processing is mal-
functioning
Probably a defective µP.
An interrupted fuse, NFR-re-
sistor, or connection.
Repair tip
Check functionality of circuitry (B3a, B3b, and B3c) of PICNIC (7713), FAL-
CONIC (7718), EAGLE (7724) and/or field memories (7714, 7717, 7719, 7722
and 7723).
Tip: The whole Pixel Plus chipset (3 ICs + 5 Field Memories) can be diagnosed
with ComPair.
Measure around microprocessor on diagram B5.
When no symptom or error code leads you to specific circuitry, use the supply
lines overview for a quick scan of all supply lines.
EM5A NTSC
5.
EN 31

Advertisement

Table of Contents
loading

Table of Contents