PHILIPS TV Repair: Common Faults and Solutions.

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PHILIPS Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
PHILIPS	CP90	Int sound at switch on	Bad conns h.phone skt - linked out
PHILIPS	CP90	Int picture	Dry joints in if can
PHILIPS	CP90	Int off when heated	Pin 2 chopper tfmr t5654 dry joints
PHILIPS	CP90	Int height	Dry joints in fop stage & psu
PHILIPS	CP90	Int flashing - low gain - poor sync.	Drys in if/sync can.
PHILIPS	CP90	Int fail to switch on	C2700 4µ7
PHILIPS	CP90	Int dead with whistle from chopper	C2700 4.7uf o/c in the psu.
PHILIPS	CP90	Impurity & lines at sw on	Degaussing therm 98017 - used 96009 & dry joints loptx
PHILIPS	CP90	Function knobs on ctv fail	Voltage + 4,9 v on pin 42 ic 7840 present. oscillogramm on pin 31,32 present. replace ic 7840 (tmp47c432p-8188; 4822 310 31849). important: mount the metal-shielding with earth to bridge 9732 (tmp47c432p-8189; 4822 310 31851)
PHILIPS	CP90	From cold will come on if warm will not start up	D6670 ( in4418 )
PHILIPS	CP90	Frame collapse - with small scan below it.	Crack in print by r3275.
PHILIPS	CP90	Focus fluctuates	Tr5763
PHILIPS	CP90	Fluttering pic - ht normal	C2638 470µ 16v in 13.5v supply or check elect caps in if can
PHILIPS	CP90	Flasing/lines on pic when cold	Dry joints if module - esp the chips
PHILIPS	CP90	Field scan very low ( 1/2 inch )	Raakhdhi A. A. Ahm
PHILIPS	CP90	Field collapse with bright line across screen	R3623 8r2 in 163v supply o/c
PHILIPS	CP90	Field collapse - small amount of scan below	No 95v to fop stage - crack in print by r3275 or r3582 3r3 o/c
PHILIPS	CP90	Field collapse 2. poor contrast	R3623 8r2 oc 2. preset r3944 5k oc
PHILIPS	CP90	Field collapse	R3623 8r2 o/c in 163v line from loptx
PHILIPS	CP90	Field collapse	R3623 ( 8.2Ω ) 163v supply