Repairs
Some things I have repaired:
| Device | Problem | Solution |
|---|---|---|
| Aiwa ADF-640 Tape Deck | Thermally induced system logic fault | Remove solder short inside Osc can |
| Clock Radio | Dead | Replaced broken power cable at case entry |
| Pioneer F99X Tuner | Memory buttons erratic | Remove disintegrating pads behind buttons and bridge gap with epoxy |
| Pioneer F99X Tuner | Change-frequency muting too long | Reduce capacitor in muting gate |
| Indesit T12 B/W TV | Raster, no video | Re-soldered dry joint in tuner unit |
| ITT Featherlight B/W TV | Dead | Replaced CRT, replaced transistor and re-bias push-pull O/P |
| Sony ICF 7600 Radio | Erratic volume and tuning | Replaced electrolytic capacitor in DC-DC converter |
| Sony 14" TV | No power | Dry joints around line output transformer resoldered. |
| Sony 14" TV | Raster OK, no signal, just noise. | Dry joint in UHF tuner can resoldered. |
| Sony 14" TV | Intermittent audio from SCART. | Re-soldered SCART socket to PCB. |
| Sony Playstation 2 Console | Won't Open | Cleaned and lubricated |
| Celestion DL4 Series II Speaker | Damaged bass driver | Replaced driver |
| Dyson DC07 Animal Vaccum CLeaner | Overheating and cutting out after a few mins | Complete clean of cyclones and replacement of motor |
| Senheiser Noise Cancelling Headphones | Wires disconnected from audio processor | Traced and resoldered |
| Tandberg Solvsuper 12C Receiver | Intermittent audio | Resoldered speaker sockets |
| Electronic Timer | LCD all elements on. | Replaced internal NiCd backup battery. |
| Dell C640 Laptop | Case fracturing. No Video out. | Completely disembled, glued case. Resoldered D-type connector. |
| Cambridge Audio A500 Amplifier | Left channel dead | Replaced output darlington pair |
| Kef Cantor Speaker | Damaged Tweeter | Replaced |
| Digital Radio | No display backlight | Replaced pair of white LEDs |
| Apple iPhone 4 Phone | Broken Screen | Screen Replaced |
| ITT Tiny 320 Radio | Distorted sound | Replaced loudspeaker |
| Matsui Fridge | No light | Clean contacts on door switch |
| Philips Food Mixer | No motor operation | Soldered blown fuse replaced with in-line fuse/holder |
| Rear Surround globe Speaker | Broken connector | Re-soldered new connectors |
| Flymo EV650 Blower | Motor starts for a few seconds and stutters | Bent corroded spring holding carbon brushes in place into new shape. Lubricated motor bearing. |
| Fujitsu Laptop | Dead after liquid ingress | Dissembled, cleaned, rebuilt |
| Sony Vaio Laptop | Slow, intermittent freezes and noisy | Replaced CPU fan, upgraded disk and RAM |
| Lenovo T60 Laptop | Noisy, occasionally won't boot with fan error | Replaced CPU fan |
| Electrolux Z1050 Vacuum Cleaner | Intermittent power failure | Shortened cable past break, replaced filters |
| Black & Decker D684 Lawn Mower | Progressively failing to turn on | Dissembled switch, cleaned, lubricated, adjusted contacts |
| Black & Decker DNJ454 Hedge Trimmer | Cable damage | Shortened and refitted cable |
| Interstate Video Game | Intermittent video | Dry joints on modulator resoldered |
| Sony TA-FB920R Amplifier | Right channel dead | Replaced burned out MOSFETs, faulty 2SC5169-FG long-tailed pair |
| Pioneer F99X Tuner | Broken AM loop spring terminals | Replaced |
| Audio Technica ATH-911 Headphones | Earpads disintegrating | Replaced earpads |
| Audio Technica ATH-911 Headphones | Buzz in one channel | Removed spider |
| Salter Kitchen Scales | Not returning to zero | Reseated platform so it no longer rubs on surround |
| Black & Decker BD163V Drill | Unreliable controller | Replaced controller (generic replacement) |
| Aiwa ADF-640 Tape Deck | Tape movement stuck | Replaced drive bands |
| Aiwa ADF-640 Tape Deck | Door mechanism erratic | Full disassembly, clean, lubricate and make door buffer pads |
| Dell 2001FP Monitor | High Pitched Whistle | Replaced PSU board |
| Apple PowerBook G4 Laptop | Won't power on | Replaced DC/Audio board |
| Smeg SUK61MFX5 Oven | One hob won't stay on | Replaced thermocouple |
| Belling Champion 91A Heater | Old/faulty wiring | Replaced wiring |
| HP Pavillion DM4 Laptop | Keyboard ""auto-typing"" | Dissembled and reseated keyboard connector |
| Chinon Executron 8M Calculator | +/- Key not working | Reconstructed bent-wire switch and re-glued daughterboard |
| Cambridge Audio Azur 640R CD Player | Not playing CD | Replaced motor belt and lubricate |
| Arcam Alpha 2 Amplifier | Noisy, low power output | Replaced LM7815 |
| Arcam Alpha 2 Amplifier | General Improvements | Removed CD input attenuation. Replaced output inductors with air-core. Replaced C8 (1 μF) with non-electrolytic and C11 (10 μF) with higher grade component. |
| Arcam Alpha 7 Amplifier | Intermittent left channel | Cleaned source selector switch |
| Citizen C300 Navihawk Watch | Eratic digital display, detected hand | Reattached, reset |
| Casio fx-570 Calculator | Eratic keys | Re-carbonised keybads with 4B pencil |
| Hair removal tool | Dead | Removed battery corrosion from switch and motor connections |
| UniCom timer | Display all lit, because aging NiCD driven with too high a voltage. | Increase charging resistance and add 3-diode clamp across NiCd |
| Citizen C300 Navihawk Watch | Erratic mode selector | Cleaned contacts |
| Remington hair remover | Dead | Glued dislocated power connectors; cleaned |
| Nexus 7 Gen 2 Tablet | Not charging through USB | Replaced USB board |
| Sony TA-FB940R Amplifier | Noise carbon tracks, running hot. | Cleaned with contact cleaner. Reduced power stage bias as per service manual. |
| Sharp R259 Microwave | Door not locking | Repaired plastic hook pulling on door latch spring |
| KEF Cantor Speaker | Buzzing in base unit | Removed surround from support, re-centred cone, and re-glued |
| Rotel Amplifier | No sound from one channel, other erratic | Cleaned all switches and pots with contact cleaner |
| Dell E7450 Laptop | Light bleed from light to camera | Inserted Blue Tack between to stop light |
| Commodore 64 Computer | Erratic Video Quality | Replaced leaky electrolytic capacitors around colour burst clock generator |
| Battery Lantern | Erratic switch/brightness control | Replaced switch/potentiometer with push-button switch |
| Maplin M-5050E Multimeter | Erratic zero/ohms controls | Cleaned potentiometers |
| Sony KDL-42W706B TV | Intermittent reboots | Resoldered PSU board connections (see here) |
| Tandberg Solvsuper 12C Receiver | Full service | Full service (see here) |
| Satellite Finder | Broken in transit | Repair potentiometer connection/PCB |
| Microsoft Designer Mouse | Intermittent stuck left button | File plastic wedge |
| Smeg SUK61MFX5 Oven | 3 igniters failed | Clean contacts in microswitches |
| Sony MDS-JB940 QS Minidisc Deck | Eject mechanism failed | Replaced belt (see here) |
| Sony Vaio PCG-2A1M Computer | Disk failed | Replaced disk, installed CloudReady OS |
| Dell E6400 Laptop | Shutting Down | Replaced motherboard |
| FitBit Charge 3 | Lines on screen | Replaced screen |
| HP P400 RAID cache battery | Shutting Down | Replaced cells (see here) |
| Arcam Alpha 2 Amplifier | Intermittent Audio | Contact cleaned tape monitor switch (see here) |
| Singer 354 Sewing Machine | Burning smell from foot control | Replaced suppressor capacitors. Also general clean/lubrication |
| Sony KDL-42W706B TV | Intermittent UI hangs | Replaced main board 1-889-202-2 |
| Pioneer F99X Tuner | Button intermittent, realignment required | Lubrication, realignments (see here) |
| TS-100 Soldering Iron | Dim display | Replaced OLED Display (see here) |
| Silicon Graphics Octane | Fan noise, blocked vents. Keyboard faulty. Front light failed. | Dissembled and cleaned everything. Repaired keyboard. Replaced front lights. |
| Bose SoundLink Mini | Won't turn on, battery takes no charge. | Replaced battery. (NB: 12V/0.8A PSU) |
| Panasonic RQ-SX75 Personal Stereo | Error when trying to play tape. | Replaced belts and reattached clutch cap (see here) |
| Aiwa XD-S260 DAT Deck | Won't play; tangles tape. | Replaced mainboard capacitors, lubricated, replaced belt, replaced brakes (see here) |
| Fender Hot Rod Delux 212 Guitar Amp | Noisy, intermittent pops | Remade bad solder connections, cleaned pots, replaced first valve (see here) |