How hard is it to replace a regulator circuit. 14pt 332/00

Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time.
Before doing any thing, try a reset to this set. To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. This procedure will make it a hard reset. Do this by overnight and check.

Do a hard reset to this set, and check. If it do not help you, the power supply regulator board is faulty. Check and replace damaged component/s at its main power regulator [SMPS] section circuit.Contact any service technician.If you wish to get some details; check the site linked here.Surf the site with patience.Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time.
To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so.This procedure will make it a hard reset.

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

DTC P1409: MEASURE RESISTANCE ACROSS EGR VACUUM REGULATOR SOLENOID
Diagnostic Trouble Code (DTC) P1409 indicates that Self-Test has detected an electrical fault in the EVR circuit.

Possible causes:

Open EVR circuit.
Open VPWR circuit to EGR Vacuum Regulator solenoid.
EVR circuit shorted to VPWR.
EVR circuit shorted to GND.
Damaged EGR Vacuum Regulator solenoid.
Damaged PCM.
Key off.
Disconnect EGR Vacuum Regulator solenoid.
Measure EGR Vacuum Regulator solenoid resistance.
Is solenoid resistance between 26 and 40 ohms?
Yes No
The EGR Vacuum Regulator solenoid resistance is within specification. GO to HE111 . REPLACE EGR Vacuum Regulator solenoid. RECONNECT all components. COMPLETE PCM Reset to clear DTCs. RERUN Quick Test.

HE111 CHECK VPWR CIRCUIT VOLTAGE AT EGR VACUUM REGULATOR SOLENOID
Key on, engine off.
EGR Vacuum Regulator solenoid disconnected.
Measure voltage between VPWR circuit at the EGR Vacuum Regulator solenoid vehicle harness connector and chassis GND.
Is voltage greater than 10.5 volts?
Yes No
GO to HE112 . SERVICE open in VPWR circuit to EGR Vacuum Regulator solenoid. RECONNECT all components. COMPLETE PCM Reset to clear DTCs. RERUN Quick Test.

HE112 CHECK EVR CIRCUIT RESISTANCE
Key off.
EGR Vacuum Regulator solenoid disconnected.
Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires. Service as necessary.
Install breakout box and leave PCM disconnected.
Measure resistance between Test Pin 47 (EVR) and EVR circuit at the EGR Vacuum Regulator solenoid vehicle harness connector.
Is resistance less than 5.0 ohms?
Yes No
GO to HE113 . SERVICE open in EVR circuit. RECONNECT all components. RERUN Quick Test.

HE113 CHECK EVR CIRCUIT FOR SHORTS TO POWER OR GROUND
Key off.
EGR Vacuum Regulator solenoid disconnected.
Breakout box installed, leave PCM disconnected.
Measure resistance between Test Pin 47 (EVR) and Test Pins 71 and 97 (VPWR) at the breakout box.
Measure resistance between Test Pin 47 (EVR) and Test Pins 24 and 103 (PWR GND) at the breakout box.
Is each resistance greater than 10,000 ohms?
Yes No
REPLACE damaged PCM. RECONNECT all components. RERUN Quick Test. SERVICE EVR circuit for short to VPWR or PWR GND. RECONNECT all components. RERUN Quick Test.

HE120 CONTINUOUS MEMORY DTC P1409: WIGGLE EGR VACUUM REGULATOR SOLENOID WHILE MONITORING VPWR
Continuous Memory DTC P1409 indicates that Continuous Memory Self-Test has detected an electrical malfunction in the EGR Vacuum Regulator solenoid sometime during vehicle operation.

Note: If DTC P1409 was output in Key On Engine Off (KOEO) or Key On Engine Running (KOER) Self-Test, go to HE110 to diagnose present fault.

Possible causes:

Open EVR circuit.
Open VPWR circuit to EGR Vacuum Regulator solenoid.
EVR circuit shorted to VPWR.
EVR circuit shorted to GND.
Damaged EGR Vacuum Regulator solenoid.
Damaged PCM.
Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires.
Install breakout box, leave PCM disconnected.
Measure voltage between Test Pin 47 (EVR) and Test Pins 24 (PWR GND) at the breakout box.
Key on.
Voltage must read greater than 10.5 volts. For an indication of a fault, look for this voltage to drop while performing the following:
Lightly tap on the EGR Vacuum Regulator solenoid.
Wiggle the EGR Vacuum Regulator solenoid connector.
Grasp the EGR Vacuum Regulator solenoid vehicle harness connector and wiggle wires between solenoid and PCM.
Is a fault indicated?
Yes No
ISOLATE fault and SERVICE as necessary. RECONNECT all components. RERUN Quick Test. Unable to duplicate or identify fault at this time. GO to Pinpoint Test Step Z1 with the following data: DPFEGR and EGRVR PIDs and list of possible causes.

Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA and

the leads from your motherboard to your hard drive make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
problems
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty or just replace them they are probably old and faulty ?
hope this helps

sound ok screen black

no parts from a pioneer wont work. There are roughly 4 regulators for the power supply maybe 5. The sad thing is they cost between 7 and 20.00 , he didnt happen to mention which power supply was affected did he? You would have to check the various regulators out of circuit to determine which one is bad. If its a F.E.T they are hard to check without the proper equipment.