Philips PS1966C122, Technical Service Data

Page: 41 / 79

Page: 2 of 9 Chassis: 19E8
Resolution:
Replace Horizontal Output transistor using
Service Code 9340 552 58127 in E8 (13/19/20")
and 9340 170 50127 in F8 (25/27").
Applies To:
13E8, 13PR19C121, 13PT30L121, 13PT30L601, 13PT30L699, 14LL190121, 14LL191121,
14LW192221, 14LW193221, 14LX190321, 19E8, 19PR19C121, 19PR19C122, 19PR19C125,
19PS56C121, 19PS56C122, 19PS56C125, 19PT10C125, 20LL290122, 20LL290125,
20LL291125, 20LW292222, 20LW292225, 20LW293225, 20LX290322, 20LX290325, 20PT30B1,
21LW392221, 21LW393221, CH1919C125, HC9913C121, HC9919C1, PA9019C121,
PC9219C1, PC9219PKIT, PL9119C125, PR1305C121, PR1319C121, PR1390C121,
PR1391X121, PR1903C121, PR1903C122, PR1903C125, PR1920C121, PR1920C122,
PR1920C125, PR1920C601, PR1920C699, PS1946C121, PS1946C122, PS1946C125,
PS1956C121, PS1956C122, PS1956C125, PS1966C121, PS1966C122, PS1966C125,
SEC919C125, TL9119C125, XR1305C121, XR1391C121, XR1903C121, XR1903C122,
XR1903C125, XS1956C121, XS1956C122, XS1956C125
No. 3 ****************************
Manual Number: 7584
DOTS AND SWIRLS USING RABBIT EARS
SYMPTOM: Dots and swirls of dots when operating on rabbit ear antenna.
Most often on channels 2 to 6.
CAUSE: Switch Mode Power Supply (SMPS) noise.
IMPROVEMENT: Replace as follows:
Resistor 3525 change from 22R to 33R, Service Code 2306 204 03339
Capacitor 2518 change from 470p to 220p, Service Code 3198 019 62210
No. 4 ****************************
Manual Number: 7584
ERROR CODE 12
CTV E8 ERROR CODE 12
SYMPTOM: Error code 12 appears in Service Mode.
This code is not on the Error Code list in the manual.
CAUSE: Black Current Loop Instability Protection
(protection means "shutdown")
CURE: Resolve Black Current Loop problem.
Circuit extends from 7313/23/33 collectors on the CRT
socket to pin 5 of header 0245. From there to header 0243
on the chassis, through resistor 3260 to pin 18 of IC 7250.