Re: [REPAIR] Help in diagnosing my Old Panasonic Quintrix F TC-21P50R CRT TV
I borrowed an old VCR and connected it to the RF input and the screen is showing same distorted picture .... any clue what that might mean when all inputs give bad screen ?
Also I've discovered that by hooking up the chassis board back to the crt the voltages readings were good; mainly voltages at the flyback IC were fine and at the secondary windings the voltage regulators outputs were fine as well.
I changed the vertical IC just for kicks but it did nothing .Also...
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
Announcement
Collapse
No announcement yet.
User Profile
Collapse
-
Re: [REPAIR] Help in diagnosing my Old Panasonic Quintrix F TC-21P50R CRT TV
Hello , my apologies for the late response. I've uploaded a couple of photos for the Chassis PCB as per your request.
Also I've opened up the TV and took out the Chassis ( Main PCB ) and measured voltage rails and they are very low. Secondary all are very low and the main offline regulator IC I've measured it's Vin Supply and it's supposed to be 16V but its 12-13V and it's fluctuating. Please let me know if you have any ideas I'm at a...Last edited by sultanpepper; 05-26-2022, 04:13 PM.
Leave a comment:
-
Re: [REPAIR] Help in diagnosing my Old Panasonic Quintrix F TC-21P50R CRT TV
Hello, Yes I've recorded OG Xbox on composite input RCA as well ,
[B][U]1- AV1 (Composite cable from a OG Xbox ):[/U][/B]
[url]https://www.youtube.com/watch?v=2LLz_DR7gtM[/url]
[B][U]2- AV2 (Composite cable from a OG Xbox ):[/U][/B]
[url]https://www.youtube.com/watch?v=5HdMMLGjWfA[/url]
[B][U]3- AV3 (Composite cable from a OG Xbox ):[/U][/B]
[url]https://www.youtube.com/watch?v=OxAS3mfC-DU[/url]
[B][U]4- DVD (Component cable from a OG Xbox ):[/U][/B]
...
Leave a comment:
-
Re: [REPAIR] Help in diagnosing my Old Panasonic Quintrix F TC-21P50R CRT TV
Sadly no.
[B][U]The TV has:[/U][/B]
1- 3 RCA (Composite) inputs at the back
2- 1 YPbPr (Component) input at the back
3- 1 RCA (Composite) input at the front
4- 1 S-video input at the front
5- 1 S-video input at the backRe: [REPAIR] Help in diagnosing my Old Panasonic Quintrix F TC-21P50R CRT TV
Sadly no.
[B][U]The TV has:[/U][/B]
1- 3 RCA (Composite) inputs at the back
2- 1 YPbPr...Last edited by sultanpepper; 05-16-2022, 12:55 PM.
Leave a comment:
-
[REPAIR] Help in diagnosing my Old Panasonic Quintrix F TC-21P50R CRT TV
Hello everyone, I've had this for more than 20 years so it's quite sentimental. It was stored for a couple of years in storage and then we moved to another location and as you can see in the videos this was the surprise. I'm still trying to gather information and watch alot of videos to be as ready as
I can before opening the back as I am aware there are alot of hazardous areas back inside. BTW I've got the service manual.
[B][U]The Problem :[/U][/B]
TV is flickering and colours are not aligned (convergence issue ? ), not all input channels (composite/RCA) act...Last edited by sultanpepper; 05-15-2022, 12:39 PM.
-
Re: New Members - please post your introductions here
Hello ,
My name is omar , I work in hardware embedded systems designs and my hobby is to repair things for myself and for friends and relatives (for free ofcourse) , its very rewarding once you figure out the culprit in every challenge you face.
Regards
Omar Sultan
Leave a comment:
No activity results to display
Show More
Leave a comment: