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Check the output regulator 12volt DC Power Supply.
Check the Fuse (Voltage Security Fuse).
Check the Flexible cable on switch board (reset & eject button).
Check the Output Diode.
Lens Problems (Optic)
Optical Spull not move (up down).
Check the flexible cable.
Check the Optical spull.
If you have SCPH - 3000 series, check the IC Driver (BA 5815).
If you have SCPH - 5000 series, check the IC Driver (LA 6508).
Check the optical flexible cable socket.
Optics spool laterally tilted or irregular jump when the engine turn on.
Check the resistor on 102 block (In IC Servo Master Control area = CXD 3098 : 470-8pin,102-8pin).
Check the resistor under IC Servo Master Control.
If you have SCPH - 3000 series, check the IC Driver (BA 5815).
If you have SCPH - 5000 series, check the IC Driver (LA 6508).
Optics can only read one CD/DVD format.
Check the Optic Laser Diode.
Check the Optic Laser Diode with Voltmeter : V3 (CD=1080 to 1260, & DVD=800 to 1300), V4 (CD=850 to 900, & DVD=1200 to 1400), V5 (CD=1200, & DVD=1400), V7 (CD=1200, & DVD=1100 to 1400), V9 (CD=1200 to 1400, & DVD=1200 to 1400).
Optics Lights not lit (Lens not light).
Check the flexible cable.
Check the optics spull.
Check the SP 3727 IC.
Check the Amp transistor ( in IC SP 3727 socket board), Upper for CD & under for DVD.
Check the IC 7805 (IC Regulator).
Excellent optics but won't to read.
Check the mecanic gear.
If you have SCPH - 3000 series, check the IC Driver (BA 5815).
If you have SCPH - 5000 series, check the IC Driver (LA 6508).
Check the ModChip.
Check the IC SP 3727.
Check the resistor (in 220 block), between IC Servo Master Control & IC Interface (CXD 9611 BR).
hay que revisar los voltajes de alimentacion del ic vertical, tanto de su vcc., como de los voltajes de entrada y retroalimentacion del mismo., verificar tambien si el ic. tiene algo de temperatura esto nos da la certeza que se encuentra trabajando., sino es que esta abierto dicho componente, ademàs de esto hay que verificar si la data y clock del ic. de la jungla estan presente porque si uno de ellos esta ausente, el tv encendera y presentara como falla vertical.
your problem in system control ic section related to stand by pin
check ckt related to stand by section in remote ic
check power to system ic
loose coniact in remote or system ic
thanks
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