Electronics Repair

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75 ohm Termination Question

A friend replaced her Comcast TV box with an over-the-air antenna but continues to use Comcast Internet service. This l...
16 comments posted 12yrs
posted by bjprice
16 comments posted 12yrs posted by bjprice

Loss of preset settings on LCD monitor

I have a Dell 1907FPVt monitor that often loses its preset settings for brightness, color, etc. It is not a problem in...
3 comments posted 12yrs
posted by Ken
3 comments posted 12yrs posted by Ken

Email from Marshall

Hi, Re that JCM2000, DSL100 head. An email has just arrived from the Marshall agents in Australia. As expected, they ha...
0 comments posted 12yrs
posted by phil_a
0 comments posted 12yrs posted by phil_a

Re: Identifying buck-boost transformer windings?

> How would you go about identifying the windings? Maybe use a Variac to > input voltage to each of the windings then m...
3 comments posted 12yrs
posted by jmelson
3 comments posted 12yrs posted by jmelson

Inverter Manufacturer With Charger In China

As leading inverter Manufacturer specialized in dc to ac power inverter, 12 v dc inverter, manufacture of inverter,inve...
0 comments posted 12yrs
posted by alberthou7076
0 comments posted 12yrs posted by alberthou7076

JCM2000 DSL100

Hi, just put a Marshall JCM2000, DSL100 on the bench. Looks nice ..... 3 output valves installed, 6CA7EH ( Electro-Harm...
4 comments posted 12yrs
posted by phil_a
4 comments posted 12yrs posted by phil_a

Magnetic door holders question

I work on commercial fire alarm systems mostly in apartment houses. Many of these buildings in the common hallways empl...
35 comments posted 12yrs
posted by captainvideo462009
35 comments posted 12yrs posted by captainvideo462009

Roland Cube 30

No function including no LEDs. Failed 3.3V VR, ominously tested no load as 4V, maybe normal , will have to try some kno...
7 comments posted 12yrs
posted by diverse
7 comments posted 12yrs posted by diverse

Benq G2420HD power supply heat issue?

Hi all.. I have a BENQ G2420HD 24" LCD monitor. Display backlight seems good, etc. But unit shuts down completely after...
15 comments posted 12yrs
posted by none
15 comments posted 12yrs posted by none

Liteon LVW-5025GHC+ (format HDD).

Does anyone know how to invoke format HDD on this PVR? This model is only 80Gb - I have a 160Gb available that could go...
0 comments posted 12yrs
posted by gangprobing.alien
0 comments posted 12yrs posted by gangprobing.alien