Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television
As far as alge ...i cant comment on that. it just sound like your blue tube has quit altogther/...yes they can be quite expesive..however it could be crt board..maybe...buy you a new one...LOL
Posted on Dec 07, 2007
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jun 18, 2017 | Mitsubishi Televison & Video
Aug 22, 2011 | Mitsubishi VS-60609 60" Rear Projection...
Jan 10, 2011 | Panasonic PT-53WX53 53" Rear Projection...
Feb 18, 2010 | Televison & Video
Jan 28, 2010 | Toshiba 36A41 36" TV
Mar 07, 2017 | Sony Grand WEGA KF50WE610 50" Rear...
Apr 29, 2008 | Philips 55PP9352 55" Projection Television
You have a problem with the three factors, and they are screen voltage, focus voltage, and control (focus 2) voltage. Basically these voltages have to be adjusted since the components in this section have aged some. These controls are usually located in the television on the IHVT (Integrated High Voltage Transformer) or as it is also called the flyback transformer. these controls must be adjusted together, along with the color controls. Here is how the adjustment is done (You will need a schematic diagram, a DC volt meter, and a color bar generator to do these measurments):
1) turn color and tint fully counter clockwise until you have a black and white picture.
2) connect the color bar generator to the TV (ch 3) and turn it on, you should see bars in various shades of gray
3) adjust as best as possible the color and tint controls to obtain the color bars on the screen Red Green Blue.
4) measure the voltages on the focus, screen and control grids of the CRT and match them to the schematic digram measurements.
5) adjust the focus screen and control grids to match the ones on the schematic diagram
6) once this is done then you adjust the color controls once again to obtain the red green and blue bars on the TV screen.
This should help if the CRT (picture tube) electron guns are still good and if the flyback transformer voltage supply is working.
However if you do not have a background in electronics please take the TV to a shop for repairs.
I hope this helps,
Oct 16, 2007 | Sony KV-20M20 20" TV
Aug 05, 2006 | Quasar SP-2722 27" TV
44 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: