Den Tue, 07 Dec 2004 18:19:36 +0100. skrev Murbolt:

Goes to black screen after short warm up (10-30 sec). Measured hor. drive,
this should be 230 Vpp but changes from ca 50 to 150 Vpp. The rate of change
is 50 Hz (the same as line freq. -230v / 50Hz). Should I go for a defective
line trafo ( somehow leaking?) or a defective deflection coil? Due to the
low freq. of the oscillation, I don't think it's bad caps, as could be
expected with high oscillation... Def. coil resistance: hor = 2.0-2.1 ohm,
vert = 6.5 - 6.6 ohm
Any ideas?

Here are the components you always change when they comes to service

+4C28 (220µF/16V)
+4C29 (100µF/16V)
+4C34 (6.8nF/1500V)
+4C32 (1.8nF)
+4C32 (1.5nF)
-4C35 (18nF)
+4TR15 (BC369)
+4TR11 (BU508A)
-53C46 (100nF/63V)
+-53R63 (pot 2K2)
-53C48 (10nF/2.5%)
-53C45 (10nF/20T)

+ = always
- = not nesseseraly
+- = depends what in from birth

Further modul 04 replacements :

4C26
4C54
4TR9
4R63
4C48
4C47
4C44
4C45
4C49
4C14
shortcircuit P26-4 and P26-2

at modul 26/27 replace :

C640

at modul 01/51 replace:

Tr1
Tr2
Tr3
Tr11


Happy soldering

--
Best whishes

Christian Treldal