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My -5v is reading -10v - Foxconn 6150BK8MC-KRSH Motherboard

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2 Answers

Please help, my monitor is blank.


this problem is releted with monitors SMPS (power supply board)
pls find that a capicitor 470/10v or 820/10v is dameged in secondry
side of sm transformer whitch filter +5v and +14 v is rusted or plucked?
then change it or replace the power supply board.

Feb 12, 2010 | Samsung SyncMaster 740N 17" LCD Monitor

2 Answers

Won't power on


Toss this junk to the garbage can, this is how I solved my frustrations with my two units

Dec 29, 2009 | Cyberhome CH-DVD 300 DVD Player

2 Answers

Defect internal power supply DSO-142L from HP KVM. Replacement ??


Remound a universal power supply rework the internal baseplate to fit the new power supply and everything will work again

Ron W
It expert

Jul 16, 2009 | HP 336044-B21 8-port KVM Switch

3 Answers

Power supply fail DVE DSO-142L


The output + 5.1v/2.4 Amps and -5v/0.5Amps DC

Input is AC 100/240 VAC 50/60 Hz

Jun 05, 2009 | HP 336044-B21 8-port KVM Switch

1 Answer

Red solid light code 44 tested all points on pwb power 5v good 10v good 12v good 3.3 v shows 6v read and then sometimes 1.5 v could this be from open fuse F9A06


You need a professional.
Stop using the TV until it is repaired.
Continue to use it and your problems will multiply and grow more expensive.
Call the manufacturer to find you nearest authorized service center.

MR. TV Sales & Service Inc
Milwaukee Wisconsin 53405
(414) 762-8600
Established 1974

Mar 24, 2009 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

3G compatability


Hello,

Probably this could be helpfull, in case you haven't seen it.
http://carljonard.com/2008/07/how-to-charge-your-iphone-3g-in-the-car/

regards,
Konstantin

Aug 06, 2008 | Belkin Tunebase FM with ClearScan for All...

1 Answer

Denon DCD-920 CD Player. Display lights up with a series of 0"s but disc doesn't play


I had exactly the same problem with my Denon DCD-910. Fixing it is easy, but it took me a while to find out;

In the power supply +10V and -10V unstabilized lines (in front of the 7805 and 7905 +5V and -5V regulators on the heatsink),

there are 2 ICP-N15 devices (IC protectors: very fast acting electronic fuses 0.6A). PCB component print is IC502 and IC503 if I remenber well. They tend to deteriorate over time and break, or a current peak could have made them tripping.

The +10V/-10V (+13/-13V really) is used for driving the loading/spindle/sliding motors and focus/tracking coils ONLY. +/-5V was still OK, that's why you can still see the display.

They have a TO92 transistor housing, but only 2 leads. ICP-N15 are hard to find; You could also use ICP-F15, but these have a different housing.

You could order the original ICP-N15 at utsource.net
An alternative could be to mount 2 polyswitches (also called multifuse), a PTC type current limiting and recoverable circuit breaker, like Bourns MF-R065, rated 0.65 A

I replaced them with 2 radial 800mA PCB solder mount fuses (1$/pc), and everything works fine again. Yet another piece of excellent equipment not to be thrown away ;-)

You have to unmount the PCB from the CD player housing (about 8 screws and disconnect all 10 connectors) to be able to replace the fuses.
While it is disassembled, check for broken solderings, especially on high power devices ( like voltage regulators mounted on heatsink or power transistors)


I hope it works for you too.


--Vincent

Jul 05, 2008 | Denon Audio Players & Recorders

1 Answer

Mitsubishi WD52725


I would say the problem lies with the Caps on the Power PCB there are 7 capacitors that fail, and the set wont operate. there are 4 100ufs at 16V 105 defrees and one 2200 uf 35V and two 3300uf 10V 105 degree. they dont always show signs of swelling either, they just fail.

Jun 24, 2008 | Mitsubishi WD-52525 52" Rear Projection...

2 Answers

Sony KP-61V80 Projection TV


It's called stuttering and a common problem for this unit... Check and replace as necessary C665 (220uf @ 10v) C666 (2200uf @ 10v) & C668 (47uf @ 25v)... If the stuttering is still there you may need to replace also Ic653 (Typical 7805 Regulator) all in the 5v regulator supply circuit.
Let me know how it goes!
Bill

Dec 07, 2007 | RCA P60921 60" Rear Projection Television

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