Home Theater sales, calibration, service, and discussion forum. Hundreds of free manuals & setup tips.

Sign up and receive the latest newsletters by email!     Join the Forum discussions!    
    Site Map  
Home Products
For Sale
Links Contact
CRT Primer
Troubleshooting Tips
Mounting Methods
Definitive CRT
Projector Setup Guide
Tube/Raster Setup
Tube Condition (Wear)
Projector Rankings
Video Processors
Ampro 1500/2000
Ampro 2300/2600
Ampro 3600/4600
Barco (Older Analog)
Barco 70x/Cine7  
Barco 500/800/801
Barco 808/Cine8
Barco 120x/Cine9
Dwin 500/700
Electrohome ECP 
Electrohome Marquee 
Panasonic 108x
Sony 10xx
Sony 125x/127x
Sony 1292
Sony D50
Sony G70
Sony G90
Zenith 841/851
Zenith 895/900
Zenith 1200

Sony G70 (LC) Tube Swap

 (Page 9)

Back to Advanced Procedures Index

1 2 3 4 5 6 7 8 9 10


27. Now, carefully slide-in the complete assembly within the G70 unit, with one hand on LC housing and the other on the tube neck end. Check that every wire/connector is NOT stressed during this operation. Ensure that the HV lead comes in the right conduit. Then reconnect the C block to the tube neck. Ensure that the pins are well inserted within the C block tube’s socket by looking through the C block front grid holes. Then secure the neck screw:

28. Re-connect all of the tubes relevant coils wires/connectors. Do not forget to re-connect the HV lead end to the HV block:

29. Screw back in place all of the tube’s LC housing top screws (two long black screws and two short gold screws):

30. Screw back in place the top tube rotation screw with the chassis ground lead:

31. Slide the bottom rotation tube axis left and down:

32. Open your G70 service manual in section 3 (adjustments) and redo section 1.3.1 to 1.3.11 adjustments for the relevant (new) tube(s). This will takes around four hours to do all these necessary adjustments.

Also use a thick rubber glove to manipulate the coils during section 3 of the Service manual adjustments since there is around 150V on the DY/sub-DY coils.

That’s all for the tube replacement procedure. The next page describes the C block PCB update in case you wish to use Panasonic P16LJE07 or P16LJE06 tubes instead of the original Sony provided P16LJE08 tubes.

Previous Page ...

Next Page ...


Copyright All Rights Reserved.