Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default help needed with broken crt neck pcb

"Arm?nio Pereira" bravely wrote to "All" (25 Mar 04 04:59:26)
--- on the heady topic of "help needed with broken crt neck pcb"

The pcb damage could also have involved other components and there
might be a hidden crack in one of the crt bias resistors. Check all
the resistors involved with the G2 pin especially near the pcb crack.
An "open" resistor in G2 circuit could easily make the picture white.
Hopefully that's all the damage there is. Good luck!

AP From: (Arm?nio Pereira)

AP Hey there! I got a small tv with a broken pcb on the neck of the crt,
AP the owner took it apart and carelessly broke it... worked fine before
AP (I wonder why he took it apart...).
AP I carefully soldered across all contacts with small wires, but now I
AP obtain only a whiter than white picture with a slightly reduced height
AP (brightness control totally uneffective)... Could I have accidentaly
AP damaged any component while soldering, or could it have been caused by
AP operating the tv with the broken pcb? Where should I start looking
AP first? Any help would be greatly appreciated!
AP regards
AP Arminio Pereira


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