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I used to fix many a 9-160 module by soldering the crap out of it especially if it's never been rebuilt.Common parts that didn't get much solder and break loose are the diodes in the output circuit,flyback pins,12v startup transformer.filter choke etc.The dual filter can failed a lot.One section of which could cause shutdown.The early ones did have a problem that caused horizontal output transistor failure.They used the same resistor and cap in the emitter circuit as the chromacolor II chassis that failed a lot.All the rebuilt ones are modified with much lower value wirewound resistors and no electrolytic capacitor.
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