Repairs | Modifications
Restorations | Customizations
Vintage Stage Electronics - Repairs & Modifications, Customizing & Occasions - in
Berlin-Friedrichshain since 1990
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Professional Device Cleaning
Electronic Devices have on thing in common:
Wie get used to them and expect them to function forever.
They accompany us throughout our lives.
40 years of service are not uncommon, more than double the lifetime of a car.
And because there is no regular inspection duty for devices, maintenance is forgotten.
Group A: HiFi entertainment centers, Cassette decks, Tape machines, Keyboards, Mixing desks get no cover.
Debris, dust and aerosoles will accumulate.
Group B: Devices equipped with fans, eat tens of m³/h dust, aerosoles and exhaust.
Notebooks should be cleaned once every 2 years,
otherwise heatsink fins will congest
and CPU throttles down because of overheating !
Group C: CRT-
regardless of gravity and/or active ventilation through their ventilation grids
magically from any direction, upwards or sideways.
The reason is high tension (250..300 V in radio receivers,
350..790 V in Guitar Amps and 20000..29500 V in CRT-
Most TVs start to burn as a directe consequence of these elektrostatically collected dust deposits!
Tube amplifiers and CRT-
While I was there back in 2006 a typical CRT-
began to crackle in the high tension area, to burn and to smoke.
Immediate pulling off the power cable, tearing the TV off the shelf and onto the balcony a fire could be avoided.
Perfect results always demand perfect cleanliness while working.
So I can offer the following grades of cleaning:
R3: Ultrasonic cleaning
for small parts <10cm (Mixing desk knobs, buttons etc.)
R2: Wet fine cleaning of surfaces
Developed for stubborn smoker’s aerosoles
using specially fitted industrial cleaning fluids.
Finally a cleaning fluid has been invented,
which will allow maximum degree of cleanliness.
Delicate screen printings,
which are not yet undermined by fatty/oily compounds,
stay untouched.
Knob, Key and button cleaning in wet brushing.
R1: Dry cleaning (using vacuuming and aux tools)
A prerequisite for all tube-
"Anodenstaub", a micro-
beside normal dust and fibres on all high tension modules.
Before
Disassembled
Pre-
Supersonic rinse
Dried
Relubrication
Reassembled
Remains
Dust deposites on a SMPS.
This LAB1200 amp broke down due to dust. (Fans blocking, overheat)