 |
|
| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
| Reply |
|
|
LinkBack | Thread Tools | Display Modes |
|
#1
|
|||
|
|||
Sony & horizontal line
Hi
I have a KV-C292 Sony TV (chassis AE-1C) which is recently showing a lighter horizontal line in the middle of the screen. I’ve found R530 open. I’ve replaced the vertical IC (TDA8170) and all the components (except the two transistor Q505 & Q506) around the vertical section, but the vertical doesn’t open. All the tensions are ok. Do you have any idea about it? |
|
#2
|
|||
|
|||
|
I'm gonna guess the 2 transisistros are push pull vertical outputs. A
line like that indicates crossover distortion of the vertical output. The 2 bases should be abpout 1.4 volts apart. Check the parts that set the voltage diffrence between the 2 bases of the vertical outputs. Mark |
| Reply |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| IBM P70 Monitor (Sony GDM-17SE2T variant) horizontal size problem. | Electronics Repair | |||
| Telephone Line 1/ 2 | Home Repair | |||
| HP Laserjet IIID horizontal line on pages | Electronics Repair | |||
| JVC TV horizontal line across the middle | Electronics Repair | |||
| Sony KV-35S42 TV -- Horizontal Lines | Electronics Repair | |||
Linear Mode
