It's great to be able to obtain a precious technical information for a real old equipment. The one I got helps me a lot in the area of wiring diagram to repair my antique. PDF gave me clear enough information to find out thr details. Thanks for giving me the oppotunity to be able to access to almost vanished informations.
great manual readable & easy to downlaod to be recommanded
Text excerpt from page 33 (click to view)
Attachment A
Page 1 of 5
Procedure to fix the Screen VR on FBT of CM771
1.Preparation (1) Solder tool with flat head.(Refer to Photo 1 and 2) 2.Operation (1) Chassis adjustment should be completed. (2) Attach the head of solder tool softly on the right side of Screen VR knob together with FBT body for approximately 5 seconds to melt them. (Refer to Photo 3 and 4) (3) Attach the head of solder tool softly on the left side of Screen VR knob together with FBT body for approximately 5 seconds to melt them. (Refer to Photo 5 and 6) (4) Attach the head of solder tool on the top of Screen VR knob for approximately 7 seconds to melt it. (Refer to Photo 7 and 8) (5) Check Screen VR can not be turned and the G2 voltage is within 600+/-10V.
