Philips philips repair tips l6 3 to l9 0 free download

File name philips_repair_tips_l6_3_to_l9_0.pdf

Philips L6.3 to L9.0 1 6 This page has been accessed Codenumber information ---------------------- Philips L6.3 Codenumber information Code number for L6.3 mainsswitch is :4822 212 11965 Philips L6.3 Dead - LED not lit 5v supply missing - check T7505 BC337-40 & T7500 BC858 sm (underneath T7505) Philips L6.3 Loses sigs aft 10 mins & no osd 7505 BC337-40 Philips L6.3 No sound - noise only from speakers MPS3410 chip faulty - replaced audio pcb Replace the line output transistor 7906. Also replace the line output driver transistor 7421 by type BC368-25 (use only a Philips version) The service code of BC368-25 is 933869720112. The set does not work anymore after switching it into the REMARKS : Philips L6.3 standby mode The cause is that the line output transistor 7906 Philips L6.33AA Dead or tripping 7505 BC337-40 & cct prot 1502 Philips L6.33AA No R/C operation aft 5 mins, crackling then int off 7505 BC337-40 Philips L6.3AA Field collapse 1 ohm resistor 3928 tucked away on the bottom of the upright PCB next to the loptx. 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 Philips L7.1A Bad focus or focus varies in a new set or after CRT replacement condition. Check if the focus adjusted normally. If not repla