Made another attempt at this pesky thing tonight after sitting on it for ages. Came to me with hourglass distortion, fixed that but the picture is still too wide and some faint retrace lines are visible. C4403 has been replaced, IIRC I ordered the actual RCA part, marked .55J250. The other two blue brick caps in the pin circuit test good, and CR4403 is fine as well. What else should I look at? All the info I've found points to parts I've already checked or replaced.
CTC187 revisited
Mar 22, 2008
2 Replies
Quick followup. I found a bad filter cap on the B+, replaced that and no difference. Voltage is spot on at 140V with the set operating. Picture is too large in both directions judging by the OSD.
Faint retrace lines, especially of one color, MAY be the Jungle IC. I had a lot of them go..looks like a bad CRT. Check the voltages on the red, green, & blue wires from the CRT PCB by the Jungle IC. I'm sure you know this, but maybe B + is high (pix too big all sides), or maybe someone "tweaked" the EEPROM. Dani.
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