Electronics Repair

HP CM1312nfi epilogue and bewilderment

As expected the registration was off when it got the thing together. So wha t ? Well it fixed itself. Not so long ago I...

9 comments posted 12yrs

posted by jurb6006

9 comments posted 12yrs posted by jurb6006

alliance antenna rotor

I re- built a Alliance rotor, but had no rotor box, found one, but I do not know how to hook the wires to the four conne...

5 comments posted 12yrs

posted by Ted

5 comments posted 12yrs posted by Ted

Panasonic Ranger 505

I have one of these on the bench and it looks like it has a problem with the horizontal circuity. The vertical edge dri...

0 comments posted 12yrs

posted by chrmiss

0 comments posted 12yrs posted by chrmiss

IC Identification Help (SMD Marking 651+, or maybe G51+), SOT-23-6

Hey, I've got a bad part that I'm trying to find a replacement for... but I can' t seem to find out what the original p...

7 comments posted 12yrs

posted by pdaderko

7 comments posted 12yrs posted by pdaderko

Peavey XRD680TB problems after a storm

This unit came in after a big electrical storm. When power is applied you h ear a slight hum from the speaker outputs b...

4 comments posted 12yrs

posted by captainvideo462009

4 comments posted 12yrs posted by captainvideo462009

Converting a 200W discharge lamp video projector to LED

Assuming over-riding the opto couplers to falsely confirm to the system micro that the arc is struck and the lamp is li...

30 comments posted 12yrs

posted by diverse

30 comments posted 12yrs posted by diverse

6 yr old GE Profile Spacemaker microwave oven, no microwaves

Hi... We have a 6 year-old GE Spacemaker microwave that has stopped microwaving. The fan, lights, turntable, etc all st...

21 comments posted 12yrs

posted by mmodrall1

21 comments posted 12yrs posted by mmodrall1

Type name of 2/3 size VHS video head drum?

Instead of 62.1mm diameter, 41.3mm, as used in standard size VHS cassette use camcorder Hitachi VM 500E of a couple of...

4 comments posted 12yrs

posted by diverse

4 comments posted 12yrs posted by diverse

Operate pellet stove from an inverter

My son has a pellet stove, and it is great except for when they lose power. This sometimes is for days, and when it hap...

7 comments posted 12yrs

posted by captainvideo462009

7 comments posted 12yrs posted by captainvideo462009

HP CM1312 Printer

I posted about this before but it got back burnered. I ran out of black ton er and the thing quit working. I was reluct...

7 comments posted 12yrs

posted by jurb6006

7 comments posted 12yrs posted by jurb6006

PMR 446 headsets

I recently acquired a pair of Telcom PMRs. They have a mic/earphone socket that I want to use. I have tried a hands-fre...

0 comments posted 12yrs

posted by pebe.c836de9

0 comments posted 12yrs posted by pebe.c836de9

Need Schematic HY3005D SWITCHING power supply.

I picked up a HYelec HY3005D power supply and need to modify it. The current limit won't go lower than 150ma. The curre...

3 comments posted 12yrs

posted by ham789

3 comments posted 12yrs posted by ham789

Sony PS-LX520 Turntable

Unit plays, but the stylus is picking up rumble from the motor. Direct-drive unit; all's quiet until the stylus lands o...

2 comments posted 12yrs

posted by policedept

2 comments posted 12yrs posted by policedept

Black band in play back picture from a SL HF 300 betamax

Need a hint on how to proceed...issue looks like: https://www.youtube.com/watch?v=kzqjPq-iRbM Sam Goldwasser indicated p...

1 comments posted 12yrs

posted by ocarvallof

1 comments posted 12yrs posted by ocarvallof

Doubled up video head appearence?

Video 8 head disc, 3 heads but 4 coils marked A and B on opposite sides of drum head FE ,and combined head JOG on same...

24 comments posted 12yrs

posted by diverse

24 comments posted 12yrs posted by diverse