702546 / OTTOVERSAND [TV]

• Fails and directly afterwards can be switched on again.
• AFT coil fine adjustment.
• AFT coil rough adjustment.
• Adjustment of deflection loop (25" 28" only).
• No picture. via SCART.
• RF AGC adjustment.
• Vertical fault.
• +B 113V adjustment - mother unit.
• Tuner IFT adjustment. (702546 OTTOVERSAND repair tip)
• Level control and separation adjustment.
• 38.9MHz adjustment. (702546 OTTOVERSAND repair tip)
• Setting control for +B150V.
• Distorted picture at the top, chattering in the appliance, picture runs through sometimes. (702546 tips)
• Tuner IFT adjustment. (702546 tips)
• CRT board: screen control.
• 5.5 MHz DET: T903 and 5.74 MHz DET:T905.
• Adjustment control for +B150V: R736.
• At switch on, line transformer whistles. Dark screen, no sound, no EHT. (702546 tip from OTTOVERSAND)
• S TRAP (T254 and T256) adjustment.
• Screen control adjustment - CRT PWB unit.
• Control detector adjustment.
• Sub sound adjustment.
• Remains in standby. If relay RY701 forced, TV switches on, only screen remains white as if it were in AV.
• Deflection loop adjustment.
• Setting the picture IF/ automatic fine tuning/ multiple audio: 5.5MHz detector and 5.74MHz detector.
• No or intermittent start-up. Switches off by itself. intermittently.
• Stereo, bilingual adjustments. (702546 tips)
• At switch on, EHT is rustled up then goes off.
• SIF detector (fine adjustment) adjustment.
• Screen control adjustment.
• Slow start-up. No picture. No audio.
• Tuner IFT adjustment. (picture attached) (702546 tips)
• At switch on appliance builds up high voltage for a short time and then switches off.
• STEREO R929 bilingual R930 adjustment.
• Clock oscillator (6.0MHz) adjustment.
• Bell filter T800 adjustment. (702546 tip from OTTOVERSAND)
• Black band at bottom of screen. Impossible to remove with adjustments.
• Deflection loop adjustment - 21" only.
• SIF (Sound IF) detector rough adjustment.
• Picture rolls. after a few hours.
• SIF detector: T255 (fine adjustment).
• Text switching board: clock oscilloscope
• Clock oscilloscope 6.0MHz C3011 adjustment.
• Intermittently top two thirds of picture develops red tint.
• Dark picture. Audio OK .
• Q602 (BU508) overheats for 30 secs.
• +B, standby R714 adjustment.
• Stereo: R929, bilingual: R930.
• Switches to standby. after start-up.
• Sub-colour adjustment.
• Tuner IFT adjustment.
• Red flyback lines, occasionally picture disappears.
• No HV.
• Switches to standby (intermittently).
• Black screen.
• Adjusting the 38.9MHz detector. Picture IF/automatic fine tuning/ multiple sound.
• Power supply chokes when switched on from standby. TV switches back to standby.
• 5.5MHz detector and 5.74MHz detector adjustment.
• Sub-sound R1342 adjustment.
• AFT detector T251 rough adjustment.
• Character position control: R2085.
• Setting control for +B150V.
• Picture blurred in tuner or scart. Impossible to adjust with focus pot and G2.
• Adjustment of S trap.
• Line output transformer starts up then appliance switches to standby.
• CLOCK oscilloscope (6.0MHz): C3011 adjustment.
• AFT DET: T251.
• Sub-sound adjustment.
• Erratic start-up.
• 38.9MHz detector T902 adjustment.
• No start-up. intermittently.
• SIF detector rough adjustment.
• P detector coil, T252, adjustment.
• Stereo R929, Bilingual R930 adjustment.
• Adjusting the aux. colour control: R826.
• Appliance goes to stand by after 0.5 secs. It can be switched on again for 0.5 secs.
• Distorted audio. (service info for OTTOVERSAND -702546)
• Green and blue drive adjustment.
• Screen control adjustment.
• Switching on the HF AGC.
• SIF detector (T255) fine adjustment.
• AFT DET (Automatic Frequency Tuning Detector) rough adjustment.
• When switching on the TV, a yellow picture with faint flyback lines from left to right appears for the first 15 minutes. Then the picture is fine.
• P detector coil: T252.
• Level control : R3066. (702546 OTTOVERSAND repair tip)
• Deflection loop adjustment - 25" and 28" only .
• Level R3066 adjustment.
• Deflection loop adjustment.
• Green and blue drive adjustment.
• Level control adjustment. (service info for OTTOVERSAND -702546)
• Picture would occasionally develop a red tint. (OTTOVERSAND - 702546 information)
• Does not start up from power button. By forcing Q705 the power supply starts up but buttons do not work. On 22 of IC2001 1.6V instead of 5V, 1.6V on the emitter of Q706 and 2.62 on the base. 10V on R745 and R748.
• Pilot detector adjustment.
• Adjusting the aux. noise control: R1342.
• Pilot detector T906 adjustment.
• SIF detector rough adjustment.
• RF AGC adjustment.
• Shuts down. after start-up.
• Clock oscilloscope 6.0MHz adjustment - Text PWB unit.
• Screen control adjustment - CRT PWB unit. (702546 OTTOVERSAND repair tip)
• AFT coil fine adjustment.
• No colour.
• Reduced vertical size.
• Sub-sound (R1342) adjustment.
• Video/chroma setting: aux. colour control.
• No response to Programme + or On/Off button.
• Audio level and separation adjustment.
• Sif detector: T255. (coarse adjustment)
• Flickering picture. after a while (depending on picture content).
• AFT coil rough adjustment.
• +B 113V adjustment. (702546 tips)
• Setting the picture IF/ automatic fine tuning/ multiple audio: audio locking device. (extract of circuit diagram attached)
• CRT board: driver control.
• Bell filter (T800) adjustment.
• Picture at first is too dark then there is too much green in picture then it becomes normal. Colour output stage IC reacts to cooling spray.
• Adjusting the HF AVR: R263.
• Sub-colour adjustment.
• Deflection loop adjustment - 25" and 28" only.
• Sub-colour adjustment.
• Occasionally picture is distorted and then becomes slightly red.
• 5.5MHz DET: (T903), 5.74MHz DET: (T905) adjustment.
• No picture.
• SIF - detector rough adjustment.
• Setting the picture IF/ automatic fine tuning/multiple audio: P detector coil. (extract of circuit diagram attached)
• Screen control adjustment.
• +B adjustment.
• Stereo and bilingual adjustment: Image IF / fine adjustment automatic / multiple sound.
• Text level adjustment - Text PWB unit.
• Power supply fails at start-up. Green Standby LED lit.
• Driver control: R1874 and R1875.
• Adjustment of the deflection loop. (+ extract of circuit diagram)
• Picture becomes intermittently dark and faint. Flyback lines.
• Bell filter adjustment.
• Colour flickers in SECAM.
• No start-up (when cold). (702546 tips)
• SIF detector adjustment: image IF / fine adjustment automatic/ multiplex sound.
• Text switching board: level control. (OTTOVERSAND - 702546 information)
• No brightness.
• Drive control adjustment.
• Tries to start, LED changes briefly from red to green.
• SECAM detector: (T801 and R805) adjustment.
• SIF detector T255 fine adjustment.
• Colour varies.
• P-detector coil T252 adjustment.
• RF AGC adjustment.
• Sign position R2085 adjustment.
• P-detector coil adjustment.
• 5.5MHz detector T903; 5.74MHz detector T905 adjustments. (702546 OTTOVERSAND repair tip)
• Drive control R1874 and R1875.
• Remains in standby at start up. If start up is selected by the start button the green light comes on for 3 secs then goes back to standby.
• AFT-DET (T251) fine adjustment (Mother checker)
• Setting the picture IF/automatic fine tuning/multiple sound: SIF detector (fine adjustment). (with circuit diagram extract)
• RF- AGC R263 adjustment.
• S trap T254 and T256 adjustment.
• Adjusting the 38.9 MHz detector : T902.
• SIF detector fine adjustment.
• SIF - detector fine adjustment. (702546 tip from OTTOVERSAND)
• Adjusting the deflection coil.
• Stuck in standby.
• Stereo (R929) - bilingual (R930) adjustment.
• 5.5MHz detector T903 and 5.74MHz detector T905 adjustment.
• Adjusting the control detector : picture IF/automatic fine tuning/ multiple sound.
• Bell filter adjustment: T800.
• RF-AGC adjustment.
• Control detector:T906.
• Pilot detector adjustment.
• AFT detector rough adjustment.
• Poor TXT reception, picture is blue/purple.
• 38.9MHz detector T902 adjustment.
• 5.5MHz and 5.74MHz detectors adjustment. (service info for OTTOVERSAND -702546)
• SECAM Detector: T801 and R805.
• Level - R918, Separation - R917 adjustment.
• Bell filter adjustment.
• Sound trap adjustment.
• Clock oscilloscope (6.0 MHz): C3011.
• SIF detector T255 rough adjustment.
• Level control and separation adjustment: image IF / fine adjustment automatic / multiplex sound.
• Stretched picture.
• STEREO R929 and bilingual R930 adjustment.
• Line output transistor burnt.
• Line output transistor and transformer dead.
• P-detector coil T252 adjustment.
• Setting the character position control. (with circuit diagram extract)
• White picture, blank raster.
• 38.9MHz detector adjustment.
• Sub colour control adjustment.
• No audio. (702546 tip from OTTOVERSAND)
• The sound on the left track does not function.
• AFT detector T251 fine, Mother checker, adjustment.
• Video/chrome adjustment: bell filter. (part of circuit diagram displayed)
• No picture. Sound ok. EHT, G2 ok. Sandcastle present with all voltages.
• Deflection loop 21" only adjustment.
• Shuts down.
• The picture is purple.
• Level R3066 adjustment.
• Sub-colour adjustment.
• The sound decreases in volume after switching on.
• Adjusting the audio block: T254 and T256.
• Clock oscilloscope 6.0MHz adjustment - Text PWB unit.
• Sign position control adjustment.
• +B (STAND BY) (R714) adjustment.
• Level control: R918, disconnection: R917.
• TXT signal improvement.
• Tuner IF transformer coil.
• Does not go into standby after Q701 has blown. Appliance starts up instantly.
• Level R918 and separation R917 adjustment. (702546 OTTOVERSAND repair tip)
• Video/Chroma adjustment: Secam detector. (part of circuit diagram displayed) (OTTOVERSAND - 702546 information)
• Text level adjustment - Text PWB unit. (service info for OTTOVERSAND -702546)
• Adjusting the screen control. (OTTOVERSAND - 702546 information)
• At switch on the EHT rustles up for a second or so, then the relay switches off.
• S trap adjustment.
• The first time the CTV goes into safety mode. Repaired solder joint on D712. The second time, CTV seems to start up but the line transformer whistles after 10 seconds and no EHT.
• Adjusting the aux noise control.
• Switches off by itself.
• P-detector coil adjustment.
• No signal (via tuner). Blank raster.
• Sign position control adjustment.
• Stuck in standby (intermittently). (service info for OTTOVERSAND -702546)
• Sound level and separation adjustment.
• Sub sound control adjustment .
• 38,9MHz detector adjustment.
• Pilot detector adjustment. (702546 OTTOVERSAND repair tip)
• Fails, will start up again with the RCU but then switches off again straight away. (702546 tips)
• +B R736 adjustment.
• Purple picture
• No start-up. LED lit. .
• Adjustment of deflection loop (21" only). (702546 tip from OTTOVERSAND)
• Bell filter adjustment.
• Sign position R2085 adjustment.
• Drive control R1874 and R1875 adjustment.
• Setting the picture IF/automatic fine tuning/multiple sound: IF transformer of the tuner. (picture attached)