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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 7
Philips
L7.1A
Bad focus or focus varies in a new set or after CRT replacement
Possible solution: Short circuit the focus and the G2 pins of the picture tube with the aquadag coating. Switch the set on for approximately 5 seconds. After this return the set to its original condition. Check if the focus adjusted normally. If not repla
14-09-04
Philips
L7.1A
Codenumber correction
Codenumber correction service manual this codenumber for postion 7600 is not correct; listed below you will find the correct codenumbers. TXT SAA5290ZP/068 :4822 209 15699 TXT A/P NTSC P083CO55BBP/177 : 4822 209 15563 A/P LATAM P083CO55BBP/179 : 4822
14-09-04
Philips
L7.1A
Codenumber information
Codenumber information LOT in use for 14" and 20" have service codenumber 4822 140 10612 LOT in use for 21" have service codenumber 4822 140 10638. REMARKS: Will be applied in L7.1a AA chassis.
14-09-04
Philips
L7.1A
Correction Service Manual
Correction Service Manual: For L7.1A AA. In the service manual of the L7.1A AA some errors occured on page 8: Change text above table from Europe version to PAL-Multi AP. In the option table, the options Child-lock and Magnavox have been removed which imp
14-09-04
Philips
L7.1A
Modification
Modification: For L7.1A AA 20" Typenumbers 20PT1XXA/75R, 73R, 50B, 59S, 70B .The CRT panel used on the mentioned sets has been changed to 4822 212 11499 from production week 9723 onwards. For sets with production before 9723, the old CRT-panel 4822 212 11
14-09-04
Philips
L7.1A
Strange behaviour of the MENU pictures and the sound volume level
Replace network resistor item 3601 (see Diagram A4) REMARKS: The reason for the above mentioned symptom is that in some network resitors some leakage current can occur. IRIS CODE 235X
14-09-04
Philips
L7.1A AA
Dead
2R2 5w res o/c, 330pf 2kv near fet split & replace fet with BUZ90 & mica washer
14-09-04
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