Repairs: Difference between revisions
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|Resolder aerial connctors | |Resolder aerial connctors | ||
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| | |Arcam Alpha 2 Amplidier | ||
Arcam Alpha 2 Amplidier | |||
|Eratic tape switch | |Eratic tape switch | ||
|Dissemble switch, clean | |Dissemble switch, clean | ||
|- | |||
|Arcam Alpha 2 Amplidier | |||
|Noise on left channel | |||
|Dissemble headphone socket: clean and glue | |||
|- | |||
|} | |} |
Revision as of 16:21, 1 September 2023
Some things I have repaired:
Pioneer F99X TunerDevice | 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) |
Pioneer SA-620 Amplifier | Noisy, distrorted audio | Cleaned pots, switches, replaced some capacitors (see here) |
Eratic signal strength | Resolder aerial connctors | |
Arcam Alpha 2 Amplidier | Eratic tape switch | Dissemble switch, clean |
Arcam Alpha 2 Amplidier | Noise on left channel | Dissemble headphone socket: clean and glue |