Question about Philips MC-105 CD Shelf System

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Power Supply transformer failed

The Philps product that I have is the MC-108/05. Inside there is a voltage dropping transformer that has burnt out. Do you have any idea about the output voltage. could it be 6 volts?

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2 x 5 Watts RMS Stereo
5 watts continuous RMS power output per channel, at 8
ohms, from 120Hz to 15kHz, with no more than 10%
Total Harmonic Distortion (THD).

Posted on Apr 08, 2008

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Will a 6 x 8 norlake freezer with cold pack unit above operate with 202 volts


The compressor will most likely not go on if the compressors capacitor does not get enough power to kick start the compressor motor. It sounds like one of the 120v lines is loose, burnt or corroded some where from the inside the panel to the connections inside the unit causing a voltage drop. If it is, you are looking at a fire hazard.

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Riso HC5500 S01-204 error


  • Code: 001 S96
  • Description:Power supply remote signal not connected The control signal cable for the ON/OFF control of the 24/38-VDC output is disconnected. The signal wire grounded inside the power supply unit has been pulled up by the IP PCB to detect the level.
  • Code: 003 S97
  • Description:38-VDC power supply voltage error A voltage drop is detected when a voltage drop is sensed by the IP PCB based on the signal resulting from dividing the 38-VDC resistance inside the power supply unit. The detection level is approximately 18 VDC. Voltage polling is conducted at 100-ms intervals by the IP-CPU. An error is detected when a voltage drop is sensed 10 times in succession (approx. 1 sec). No detection is performed when the interlock SW is open.
  • Code: 004 S97
  • Description:24-VDC power supply voltage error A voltage drop is detected when a voltage drop is sensed by the IP PCB based on the signal resulting from dividing the 24-VDC resistance inside the power supply unit. The detection level is approximately 11 VDC. Voltage polling is conducted at 100-ms intervals by the IP-CPU. An error is detected when a voltage drop is sensed 10 times in succession (approx. 1 sec). No detection is performed when the interlock SW is open.
  • Code: 006 S97
  • Description:3.3-VDC power supply voltage error A voltage drop is detected when a voltage drop is sensed in the 3.3-VDC power supply on the MIP side of the IP PCB. Voltage polling is conducted at 100-ms intervals by the IP-CPU. An error is detected when a voltage drop is sensed 10 times in succession (approx. 1 sec).

  • Code: 007 S97
  • Description:1.8-VDC power supply voltage error A voltage drop is detected when a voltage drop is sensed in the 1.8-VDC power supply on the MIP side of the IP PCB. Voltage polling is conducted at 100-ms intervals by the IP-CPU. An error is detected when a voltage drop is sensed 10 times in succession (approx. 1 sec).
  • Code: 008 S96
  • Description:Control panel not connected The absence of the control panel unit to be connected to the MC PCB is detected. Since this configuration lacks this panel, this error indication will not be issued under normal operating circumstances.
  • Code: 009 S96
  • Description:Print counter not connected The absence of a print counter is detected.
  • Code: 011 S96
  • Description:CIS PCB not connected The connection of the CIS PCB cannot be confirmed.
HP Printer Support Phone Number 1 850 610 1013 HP Support Assistant

Dec 11, 2013 | Riso Office Equipment & Supplies

2 Answers

Hello i have a Sony Vaio PCW-W2 that i brought to canada from uk. how do i switch voltage to 110?


u can find voltage converter connectors......try using that....u can ask for travel adapters....hope u find them

Mar 08, 2010 | Sony Computers & Internet

1 Answer

I get spark then it quits but keeps feeding all terminals are tight all grounds cleaned and checked


Sounds like transformer has failed. Have you checked INSIDE the welder for loose / corroded terminals??

Also circuit board may have fault.

Check plud that plugs into power supply for loose / burnt connection.

Jan 08, 2010 | Miller Welding Tools

1 Answer

Amp MC-D80. No Indication of power on.Checked power supply board(no schematic). No + or - 12v. All other voltages seem ok. Any known common failure? Thanks Art


Simply follow the 12v supply back to where it starts, which should be where the transformer wires join the PC Board. If you don't have 12v AC there the transformer has gone. If you do, then follow it with your multimeter till it goes. That will lead you to the culprit.

Jan 07, 2010 | Audio Players & Recorders

1 Answer

Dimension 3100 Won't POST, getting amber flashing amber light at front panel and on the mother board getting steady light near the cmos battery note under the light says cr3h1 re-seated cpu and cards,...


I concur with your diagnoses.

Weak power supply due to a weak, or failed, voltage power rail.

There are three main voltage power rails for your Dell Dimension 3100 power supply.

1.The 3.3 Volt rail
2.The 5 Volt rail
3.The 12 Volt rail

Newer computer power supply's are doing away with the 3.3 Volt rail.
Your power supply has,

16 Amps on the 3.3 Volt rail,
21 Amps on the 5 Volt rail, and
21 Amps on the 12 Volt rail.

These are the main power voltage rails.
Voltage times Amperage = Wattage.
You have a power supply, that is rated at a maximum output of 400 Watts.

1) ALL the lights use less than 1 Watt.
2) EACH fan uses 2 to 3 Watts
3) A typical processor uses 55 to 125 Watts.

(A typical Intel Pentium 4 HT processor, Model 640, (3.2GHz), uses a maximum of 84 Watts,

http://en.wikipedia.org/wiki/List_of_Intel_Pentium_4_microprocessors#Prescott_2M_.2890.C2.A0nm.29

With a weak, or failed voltage power rail you don't have enough power to turn on the processor.
No processor running there is nothing to run the operating system. (Windows XP is an example of an O/S)

The harddrive just sits there, and spins, or will spin a few times, and stop.

What causes this?
1) Cheap quality power supply, (SMPS), installed by computer manufacturer. Cheap components are used in the power supply. (Electrolytic Capacitors, gauge of wiring, rectifier bridge, and so on)

2) Inside of computer, and power supply hasn't been cleaned on a regular basis.
Causes havoc inside the computer.

The processor fan builds up with dust, dirt, hair, etc, and the cooling capacity drops tremendously. Eventually the processor turns off. (BIOS turns it off)
It's a Fail safe feature that is built-in, to keep the processor from burning up.

Before it get's to the stage of overheating, and turning off, it calls for more power from the power supply.
The power supply works overtime to keep up.

When the inside of a power supply, and it's cooling fan are clogged with the above mentioned gunk, the cooling capacity of the power supply also drops tremendously.

The heatsink's inside the power supply cannot get rid of the heat. The fins are clogged, and air cannot rush through them to disperse the heat.

When the blades of the fan, and it's center hub become clogged, the cooling capacity drops due to not enough air is passed.

Heat = Wasted Energy, and the power supply strains to keep up. Eventually components inside the power supply start to fail, or fail.
(Electrolytic Capacitors are usually the first to go. They are the weakest link)

Questions?

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2 Answers

Not booting up showing green light wont show on screen


Try to reinsert the RAM! Remove it, clean it and insert it back!!!

hope it will work!!

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A Marshall 100w amp that lacks heater voltage on all tubes


Yes, it is the power transformer that has failed. If you are comfortable with replacing it then do so just be careful. If you could though I would be careful and check to see what power you are getting at the transformer just to make sure

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