PHILIPS TV Repair: Common Faults and Solutions.

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PHILIPS Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
PHILIPS	3D	Moire on channel 5 (175 mhz)	Apply hf-shielded antenna-cable (from wall-contact across vcr to ctv) or use special antenna-cable 4822 321 61225
PHILIPS	3D	Characters wrong	Check u 1555 (digital pcb; 4822 212 22585)
PHILIPS	3D	Brightness too high/fly-back line visible	Check u 1555 (digital pcb; 4822 212 22585)
PHILIPS	3D	140v ok and via scart ok	Replace u1018 (4822 212 22439)
PHILIPS	3A	Unacceptable long heating time of older picture tubes.	Add a diode 1n4148 (4822 130 30621) in serial with diode 6492. this will not effect the lifetime of the picture tube or the set. it prevents that the video controller mutes the picture untill the 3 guns are within the same range of emission.
PHILIPS	3A	Unacceptable long heating time of older picture tubes.	Add a diode 1n4148 (4822 130 30621) in serial with diode 6492. this will not effect the lifetime of the picture tube or the set. it prevents that the video controller mutes the picture untill the 3 guns are within the same range of emission.
PHILIPS	3A	Tuning unstable	Check u1018 (if module europe:4822 212 22439) (if module france:4822 210 10295)
PHILIPS	3A	Text, clock and ods do not work.	If the memory has been changed be sure that the option is correct.
PHILIPS	3A	St/by only	C2681 22µ 35v at front corner of pcb near chopper
PHILIPS	3A	Spare part information	Spare part information ---------------------- for the keyboard assemblies 4822 212 23132 and 4822 212 22765 only the foil is delivered, without the plastic housing (see service information he92-06 dd 11-05-92). the separate plastic housing is now also
PHILIPS	3A	Spare part information	Spare part information ---------------------- the picture tube of the 17" 3a sets (a41eam00x03) is now available with service code number 4822 131 20552.
PHILIPS	3A	Spare part information	Spare part information ---------------------- keyboards 4822 212 23132 and 4822 212 22765. only folio is supplied. use the old case.
PHILIPS	3A	Sound - no nicam standard sound ok.	Ic7201 on nicam pcb.
PHILIPS	3A	Sometimes no sound, no picture (+13 v on pin 27 u 1018) present.	Picture and sound ok via scart. check u 1018 (if module europe:4822 212 22439) (if module france:4822 210 10295)
PHILIPS	3A	Sometimes no sound, no picture	Check soldering points of sops-transformer and line-transformer
PHILIPS	3A	Set dead protection thyristor operating	F1601 315ma oc
PHILIPS	3A	Set cannot be switched from stand-by	Voltage 7,5 volt from sops is too high. c2681 (22 uf/35 volt 4822 124 21932 on the primary side)
PHILIPS	3A	Rating of fuse 1642	Rating of fuse 1642 ------------------- the following production change has been introduced in versions of the 3a chassis which include both nicam sound and picture-in-picture (pip). the value of fuse 1642 has been increased from t800m/a to t1.25a code n
PHILIPS	3A	No synchronization	Check u 1018 (if module europe:4822 212 22439) (if module france:4822 210 10295)
PHILIPS	3A	No sound, picture ok (sound ok via headphones)	Replace ic 7200, ic 7210 (tda 1514/n4; 4822 209 70938) also mount 2 diodes p4ke30c700 (4822 209 73095) in parallel to c 2228 and c 2229. (polarity is not important)