Repairs

Some things I have repaired:

Pioneer F99X Tuner

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)
Pioneer SA-620 Amplifier	Noisy, distrorted audio	Cleaned pots, switches, replaced some capacitors (see here)
Eratic signal strength	Resolder aerial connctors
Arcam Alpha 2 Amplifier	Eratic tape switch	Dissemble switch, clean
Arcam Alpha 2 Amplidier	Noise on left channel	Dissemble headphone socket: clean and glue (see here)