FF425 / SABA [TV (Standard)]

• Part no. info: PSU repair kit.
• Part no. info: PSU repair kit.
• After bridging E-C of TL17 (BC548B) protective circuit does not start up any more. If DL18 (ZPD36) is desoldered, protective circuit sets in.
• Service info: Contrast- and beam current adjustment after replacing chroma video module.
• Channel mistunes after 2 days.
• Channel raster is shifted with two or more channels.
• Volume alters by itself or sound is distorted. (SABA - FF425 information)
• No reset pulse at pin 6 of IR81 (TEA5110), screen blank and picture dark.
• Moire effect in coloured areas.
• Intermittently wide interference lines (like defective RF-cable). Via scart socket, picture is OK.
• Picture dark and screen blank, no display, only standby-dot (lines are running).
• Data stored by control unit processor are intermittently lost after switch on/off via mains.
• Vertikal deflection does not function. (service info for SABA -FF425)
• Appliance starts up poorly, RC must be pressed long. (service info for SABA -FF425)
• Picture has severe distortion at top and bottom. Changes with line amplitude.
• Intermittently colour fails.
• Narrow horizontal lines in picture.
• Moire effect in the colour areas.
• Code lock. (FF425 tip from SABA)
• Rotating vertical lines on the whole picture. If adjusted with pot PF02, picture looks correctly in lower third.
• Protective circuit starts up - after removing CRT board, no protective circuit mode. (service info for SABA -FF425)
• Part no. info: Processors.
• No sound. Muting voltage at pin 10 (sound module) is too low (approx. 4,5V, nominal value: 12V).
• PSU starts poorly.
• Rainbow colours at lower picture edge, otherwise no picture.
• Appliance has no HF reception. Snowy picture. (part of circuit diagram displayed)
• E/W stage function.
• Loud noises from speaker (at switch-off).
• RC part number.
• No stereo reception on channel 60.
• Dented vertical lines.
• Slight jitter in vertical synchronisation.
• Programs are not stored. U6 is too low (26V, nominal value: 30V).
• Colour bleeding.
• E/W-error, picture amplitude can not be controlled.
• Part no. info: PSU repair kit. (SABA - FF425 information)
• Strong interference on top and bottom of picture. It changes at control of E/W-adjustment. (FF425 SABA repair tip)
• Vertical lines are slightly dented on top. V-location-control (PF02) does not change it.
• No start up. No drive pulse for PSU Pin 7 IC14 (TEA2029).
• No picture after it was switched over to videotext.
• Receives no HF signals. Band change is not possible. (extract of circuit diagram attached)
• Service information: Function of E/W stage.
• Only rainbow colours (picture tilting). U4 is too low (approx. 8V, nominal value: 12V). (FF425 SABA repair tip)
• Bright horizontal line on bottom in picture.
• Contrast- and beam current adjustment after replacing chroma video module.
• Vertical line terminations are shifted only on top.
• Dotted lines at colour transitions.
• Can not be switched on by main power switch and RC.
• Part number info: RC
• Channel 60 and high channels flicker. U6 (30V) too low.
• No HF reception. Picture is noisy. (with circuit diagram extract)
• Part number info: power supply repair