152KP2056 / SIERRA [TV]

• Control logic module.
• Does not tune on a channel in search mode.
• Line transformer with the same focus as HV cable plug.
• Very bright picture.
• Frame module without IC TDA2780 (short supply).
• Intermittent failure to tune to channel 40-. Tuner voltage deviates from voltage when tuning to channel is OK.
• When switching appliance on/off the clock display goes off. (152KP2056 SIERRA repair tip)
• Appliance spontaneously switches from UHF to VHF and back again.
• When switching appliance on/off the clock display turns off.
• TXT regulators skip in cold condition.
• TXT lines skip in cold condition.
• Lower side of picture is black. (SIERRA - 152KP2056 information)
• No picture/sound. Power supplies are ok.
• Focus potentiometer.
• Double sound.
• Flyback lines and black bar are visible in picture (when receiving without antenna signal).
• Appliance occasionally switches to stereo without reason. (service info for SIERRA -152KP2056)
• Moire in picture on the UHF range.
• Part no. change for mains switch.
• Flyback lines.
• Replace IC SAA1060 with IC SAA1061.
• Switches to standby when TXT is started. LED doesn't light. Switches on only if TXT is switched off from RC
• External radiation from TV equipment on VR2020.
• Offset frequency problems.
• Replacements for picture tubes.
• Appliance switches spontaneously from UHF to VHF and back again.
• Band 4 and 5 will not work after replacing tuner.
• Dim program display LN526RA.
• Adaptionpanels to prevent double sound.
• Shuts down (intermittently).
• Connection of a loop system to the TV.
• When transmitting, a "second language" comes through.
• Appliance switches periodically to stereo without reason.
• Conversion to cable tuner V317LO. (152KP2056 tip from SIERRA)
• No picture, only lines.
• Safety test after repair.
• No picture or sound. Power supply OK.
• The current time is 1 minute behind.
• Shifting vertical centering with G7000.
• At switch on the screen lights up excessively but with no predominance of colour and goes into safety mode.
• No storage. Program drops out, when key 1-4 is pressed.
• Focus/VG2 unit K12Z.
• Will not tune on a channel in search mode.
• Adjusting clock TXT decoder without measurement equipment.
• TRD111 system memory loss.