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Polaroid TLU01541CU standby light is on, but will not come out of standby. All voltages seem correct coming out of power supply ie 5v 12v 3.3v, any suggestions. as sevice data for LCD TVs seems few and far between. John

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You might try resoldering the power supply board.Go over it with a magnifier and look closely to find the bad spot. Or resolder the whole board. This fixes a few of these type LCD's. Also look for the tops of capacitors that have bulged.

Posted on Aug 03, 2009

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How do i turn on a compaq ps-7231 power supply?


Pin Name Color
Description 1 3.3V Orange +3.3 VDC 2 3.3V Orange +3.3 VDC 3 COM Black Ground 4 5V Red +5 VDC 5 COM Black Ground 6 5V Red +5 VDC 7 COM Black Ground 8 PWR_OK Gray Power Ok is a status signal generated by the power supply to notify the computer that the DC operating voltages are within the ranges required for proper computer operation (+5 VDC when power is Ok) 9 5VSB Purple +5 VDC Standby Voltage (max 10mA, max 2A in ATX 2.2 spec) 10 12V Yellow +12 VDC 11 12V Yellow +12 VDC 12 3.3V Orange +3.3 VDC 13 3.3V Orange +3.3 VDC. ATX V2.3 / EPS12V V2.92 both define that the PSU has to use remote sensing to compensate cable drops on the 3.3V line. Because of this there is an additional brown cable crimped together with the orange cable either to pin 13 (ATX) or pin 1 (EPS12V). 14 -12V Blue -12 VDC 15 COM Black Ground 16 /PS_ON Green Power Supply On (active low). Short this pin to GND to switch power supply ON, disconnect from GND to switch OFF. 17 COM Black Ground 18 COM Black Ground 19 COM Black Ground 20 -5V White -5 VDC (this is optional on newer ATX-2 supplies, it is for use with older AT class expansion cards and can be omitted on newer units) 21 +5V Red +5 VDC 22 +5V Red +5 VDC 23 +5V Red +5 VDC 24 COM Black Ground /PSON activated by pressing and releasing the power button while the power supply is in standby mode. Activating /PSON connects the power supply's /PSON input to ground, thereby switching the power supply to full-on condition.

Feb 26, 2015 | Compaq Computers & Internet

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TV will not come on even though the light turns blue


check for leak or bad capacitors in the power supply board, then if you can make a voltage checking just to ensure if output voltage in the power supply board are present. the 5v standby 5v switch 12v and 24vdc at the power supply doesn't drop.

Sep 03, 2012 | Televison & Video

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Fault TV


that is main board issue..

Jun 14, 2012 | Televison & Video

1 Answer

Start up light flashes once and it won't power on


Most probable cause is the power supply. Look at the back of the computer, check the voltage settings located near the power cord. This will be the small red tab indicating two different settings, If your in the US it should be set to 115. Also, the power supply should run the internal fan when it is turned on.

To test the power supply try this:

Open your computer case and locate the gray box that is the power supply unit. Trace the wires from the power supply to the boards and devices and disconnect all the cables by unplugging them.

Find the big connector plugged on the the motherboard, make sure it is disconnected and short the two pins: (GREEN & BLACK) Short green pin (14) to GND (any black) to switch power supply ON, disconnect green from GND to switch OFF.

This will switch the power supply, you should hear or see the fan in the power supply spin. If you do not see the fan spinning, and your sure you have shorted the correct wires, you have a faulty power supply. If you see the fan spinning, you can now test the voltage coming out of the power supply.

Place a volt meter on the following colors to test voltage:

The color code for the wires is: Red = +5V, Black = Ground (0V), White = -5V, Yellow = +12V, Blue = -12V, Orange = +3.3V, Purple = +5V Standby (not used), Gray = power is on (output), and Green = Turn DC on (input).

Feb 12, 2011 | HP Pavilion a6110n PC Desktop

3 Answers

Polaroid 26inch lcd tvred standby light on but power wont turn on. I've unplugged the tv, changed the batteries in the remote. The tv stays with the red standby light only.


You need to open it up and checking the voltages in the power supply sections, you should have 5v (for logic circuits), 12v for sound, 24v for backlight inverter circuits. Look for bad caps with bulging tops in power supply also.

Jan 12, 2010 | Polaroid FXM-2611C 26 in. LCD Television

1 Answer

Pin Name Color Description


Yes this is a good list of the voltages to be expected from a newer power supply on just the main header

Apr 01, 2009 | HP Compaq dc7100 PC Desktop

1 Answer

Polaroid " 3211 TLXB red light no power up?Ive checked for Bad Caps,on the main power supply.I found none,that were swollen or leaking.It looks good.I checked volltage out to volltage inverter.all the out...


hi remove the supply to the main board & inverter, now power your psu if give you this same above voltages , go for new power supply unit. change your power

Oct 12, 2008 | Polaroid 3211TLXB 32 in. LCD Television

2 Answers

Sansui dvd recorder SAN0901


turn the power on. to get rid of the red light you need to press the timer/rec button on the remote until it turns off. the red light means it is programed to record.

Dec 01, 2007 | Sansui VRDVD4005 DVD Player/VCR

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