Toshiba 27AF41 27" TV "ic401" Questions

...FOR SHUTDOWN. ** D4A1 MUST BE REINSTALLED IN CIRCUIT TO PREVENT CRT DAMAGE. ** 2.CHECK PIN 1 OF IC401 FOR 10.7VDC. IF LOW OR MISSING CHECK FOR SHORTED D4000 LOCATED OFF PIN 1. (PCB-MAIN) D4000 ...

...oldie 1988? POWER SUPPLY STARTS BUT WONT RUN. CHECK FOR SHORTED D909 OFF T905 PIN 17 AND/OR SHORTED IC401. (PCB-MAIN) D909 PT.# 264P521020 IC401 PT.# 272P174010 *** ( TO PREVENT REPEAT FAILURE , ...

...you have a bad vertical output IC that is defective along with some caps. Change IC > LA7838 > IC401 and ALL CAPS like cap off of pin #6 1ufd 25v and etc. Good Luck, big

...that the line in the middle of the tv is part of the picture. It looks like the vertical amplifier IC401 is defective. If you have soldering/desoldering skills you can change this part yourself.

...AND CONVERGENCE SHOULD BE DONE. IF MISSING, WEAK OR DISTORTED, CHECK PULSE AT SOURCE PIN 7 OF IC401 (PUMP UP OUTPUT) ON THE SIGNAL PCB, IF THE PULSE IS NOT CORRECT AT PIN 7 CHECK C402 100 UFD ...

...tube. Most likely would be the vertical output ic, probably with a 400 location number, example IC401, could also be a capacitor in the vertical circuit most are close to that

Toshiba 27d46 27' TV I have a vertical problem Screen squished to about 1/4'. I have replaced ic401 and a few of the caps around the ic. After i replaced the ic the picture went back to normal for ...

...resistor supply power to the ic. i'me not sure of the location, but panasonics usually put it in ic401.it is a ic with 10 to 16 pins all in a row. it will ne screwed to a small heatsinkthe making ...

...picture I would guess is the vertical IC has some poor solder joints. The vertical IC in that unit IC401 is an LA78041 a seven pin IC that is mounted to a metal heat sink. On the foil or under side ...

...haven't faced one of these in a while but I think the part location marked on the board for this is IC401. Resolder the connections to the pins of this part and it should restore your picture. If you ...