CT2112 / PERDIO [TV]

• U2 and U3 ok but no U1.
• PSU blows.
• Standby LED flashes at power on.
• Black screen. "Halo" in colour on screen.
• Yellow tint in picture.
• Switches off after 3 blows.
• As soon as appliance starts to work it goes into automatic search mode and goes to all the channels without stopping.
• Functions with a discreet decoder but with a syster, frizzy picture and colour flashes.
• TP32 and TP38 S\C at switch on. 300V in CP11 after changing power supply kit but no voltages on secondary.
• At start up, TV displays a line and a point on the display.
• The picture is correct but interference lines appear intermittently.
• No audio. when cold. No picture. when cold. (CT2112 tip from PERDIO)
• No start-up. (with circuit diagram extract)
• LED flashes.
• S/C disappears when D57 (BY297) is disconnected.
• Start up problems.
• TV functions but 90V is at 78V and 108V is at 90V.
• The TV blows now and again then returns to normal operation after one or two seconds.
• No voltage.
• No picture or audio. Bright screen.
• The RP51 resistor burns out.
• There is no more power supply.
• No picture.
• Does not switch to standby.
• BU 508A and RP11 blow. (CT2112 tips)
• No synchronisation.
• Poor tuning of channels and hum in sound.
• Adj B+ not working.
• No functions. (extract of circuit diagram attached)
• Very white screen with lines.
• Switches on by itself.
• Vertical collapse.
• Oscillation of the CD and L54 missing. No SYST U. Base control OK. U1 at 100V. CL54, CL56, TL54, DL57, DL56, IL03, DP51 have been replaced.
• Intense locking on channels 28 to 67. Channels 22 and 25 and VHF function.