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Sanyo fvm4012 dead set

Dead set front led flashing 3.3 volt line pulsating.

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How do I properly determine the power supply of a parallel circuit of LED lights? I have 30 LEDS to wire into a large model. I know the individual LEDS each run on a 3 Volt CR2016 watch battery. I


You can go from 2 aaa'a three two D's depending on how long you want the battery's to last or project size. Depending on LED model 98% don't matter on the amps just the voltage. I was using 2 D's so you would have about 24 - 36 hour straight on time.. But if you could afford 4 of them for testing. Run four in line so the voltage will be 12 volts total and hook it up to your car battery and you should/would have a light for 6 months to a year and the LEDS should be just fine.

Sep 18, 2014 | Cars & Trucks

1 Answer

HP Designjet 500 has a locked screen. I have been trying to get the plotter to run on our new computer and it locked up after installing the current Firmware and driver updates. Any suggestions would be...


Dear Friend, It's a serious issue what I understood & confusion is control panel locking facility not avail in this model, how its locked?.. Simple method to catch the faulty part through power LED behaving s..(Power led located on power button)

# LED is OFF - This indicates that the Power Supply Unit is
completely dead. Try the following:
1 Check that power cord is connected correctly to the Printer and to the Power Socket.
2 Replace the Power Supply Unit
# LED is ON (all the time) - This indicates that the Main PCA is completely dead. Replace the Electronics Module
# LED is Flashing - A problem has been detected with the previous firmware upgrade. Try re-send the firmware upgrade file.
# LED Flashes twice every few seconds - The Printer cannot detect the Interconnect Cable. Try the following:
1 Check that the Interconnect Cable is connected correctly to the inter connector PCB & Electronic module.
2 If the Interconnect cable is connected correctly and the LED continues to flash twice then replace the Interconnect Cable
LED Flashes 3 times every few seconds - The Printer cannot
detect the Front Panel. Try the following:
1 Check that the Front Panel is connected correctly to the Interconnect PCA.
2 If the Front Panel is connected correctly and the LED continues to flash 3 times then replace the Front Panel
LED Flashes 4 times every few seconds - This indicates that the Electronics Module has failed. Replace the Electronics Module
LED Flashes 5 times every few seconds - This indicates that the Electronics Module has failed. Replace the Electronics Module.
Now U decide that whether firmware uploaded properly or not?..if not its sure that Electronic module gone.. you have 2 replace it..
Any further help/query pl reply, best of luck..

Oct 02, 2013 | HP DesignJet Office Equipment & Supplies

1 Answer

Replaced stock brake lite with a new led. Why while bike is idling the LEDs are pulsating . Can anyone. Help


The LED's have a very low amp draw and are very voltage sensitive. If you have access to a volt/ohm meter you can read the ohms of your new LED bulb, then read the ohms of your old tungsten bulb. Figure the difference and find a resistor to match this number and install on the ground side of your bulb. This will Load the circuit and should stop the pulsating.

May 14, 2011 | 2007 Harley Davidson FXSTC Softail Custom

1 Answer

Chopper transister blown fuse blown


100k ground from ic pin replece 3 electrolytic cap . Adjust preset for 95v if it isphilips tv

Aug 17, 2009 | Televison & Video

1 Answer

Compaq dead after power company shutdown period


Sounds like a blown fuse in the psu, replace the unit and you should be good to go.

Nov 30, 2008 | HP ATX-250-12Z, ATX-250-12Z Rev. H1, HP...

2 Answers

Mitsubishi WT-46807 Dead


Does the led light up when power is pressed? If so press menu and input buttons both in together to see if the led will blink a two digit error code then let me know the results. Please respond to this same post.

Jul 04, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Blinks twice pause blinks 4 times


SYMPTOMS
Dead or Shutdown symptoms.
RESOLUTION
Dead symptom reported to be caused by the following:
1. Dead.
Found Q601 & Q602 shorted, R615 open, and IC600 on the A Board were the cause of the symptom.

2. Dead.
Found D614, Zener diode, on B+ line was shorted.

3. Set shutdown and the standby LED blinks 3 then 5 times.
Found 200v line was low. Disconnected CN706 on the C Board and found 200v now
present on CN706/pin 7.
Found: IC702 (C board) shorted the 200 volt line.
HQ Comments: C541 on the A Board could become defective if the 200v line is shorted since
the polarity on the capacitor will become reversed. R553 fuse resistor could also be opened
on the A Board.

4. Error code of 4 blinks .
Dead set press power button you hear the relay and you see red led flash 3 times and stops? Has no HV or other action. Tech removed the back as no 200 volt supply, did unplug CN706 and now has 200volts. Tech did remove the IC702 and same it comes up so needs this IC.

5. Dead. 5 blinks then 3 blinks. Found shorted Damper diode D504. Q502 has a built in damper, as well.

6. The TV does not turn On and the LED flashers 9 times.
Found one side of R610 open on the Base of Q690 on the A board.

7. Dead, 9 flashes, Q606
Would not start when cold, has stand by 5 but relay never energize.
No response from front panel or remote controls.
9 blinks is not in service manual.

Found Q606 (Zero Det.), on the A Board, had no soldered on the collector
of the transistor causing an intermittent connection.
Soldered the collector of Q606 and set returned to operation.
HQ Comments: Also refer to E30968554.

8. Dead. 5 blinks or 3 blinks
Found on the A Board D611 in the Power Supply open, and Hor. Output Q502 shorted.

9. Found Power Supply components D611 shorted causing Q600, Q601, and R615
to fail on the A Board.

10. No picture or sound. Standby flashes.
Found Q512 (Pin Out) shorted. on the A Board.





11. Dead. No sound or picture.
Found the FBT and Q502 were shorted, and R615 open on the A Board.

12. Dead
No power, Stand by light flashes 4 times.
Found T604 and IC601, replaced.
Found D611 on the A Board was the cause of the symptom.

13. Dead.
Found D534 shorted on the A Board.

14. Shutdown 4 Blinks.
Replacing R595, OCP Latch Q532 on the A Board, fixed the set.
PN 1-247-891-00, 330K 1/4 watt.

15. Unit shuts down after 15 mins.
Immediate shutdown - sometimes it give a 3 blink, sometimes nothing.
Found R595 (330K) was open located in the Q532 OCP Latch circuit.
R595 P/N 124789100 330k 1/4w

16. Won't power up. LED Blinks 4 times, B+ is very low
B+ is at 49V, +15/-15 only coming up to about 1 volt.
Wth Hor Out disconnected B+ only comes up to 50v.
Found D611 on the A Board was the cause of the symptom.

17. Intermittently does not turn on
Found a intermittent C633 on pin # 3 of IC600.
C663 P/N 113647911 Film cap .001uf 100v



Billy

If you need the service manual contact me at:billyjones@fletchersite.com

Jan 27, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Green light has continuous flash and there is no picture


This model is equipped with a keyboard lock feature; this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds. 2. (Power LED may be on after plug in) check for no less than 4.4 volts DC at pin 3 of PC9A21 on the Power PCB, if low or missing replace PC9A21 part # 268P058020. You can try this first then if don't work still:This model is also equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) 1. Shutdown at power with self diagnosis error 2-2. Check for open fuses F9A04 and F9A05 part # 283P144080 on the +24 and -24 volt lines. If the fuses are open the convergence output circuit would be suspect. 2. Shutdown at power with self diagnosis error 2-1. At power on check for 12-volts DC at connector KH pin 8, if missing check IC9C51 part # 270P990010 and L9C52 part # 441D009020 on the Signal PCB

Sep 16, 2007 | Mitsubishi WS-55315 55" Rear Projection...

2 Answers

73" rear projection Mitsubishi TV


1. Check for no 8.4 volts DC at pin 3 of PC9A10 on the Power PCB, if low or missing replace PC9A10 part # 268P058020. 2. LED does not blink at plug in. Check for 3.3-volts DC at connector RF pin 3 (system reset) if low or missing suspect the reset switch S7L20 part # 432P109010 on the Control PCB. 3. LED does not stop blinking after plug in. Verify the standby supplies, 12-volts at connector KA pin 17, 6-volts at KA pin 18 and the 28-volts at KA pin 19, if the supplies are present suspect the DM PCB part # 934C067002 4. LED does not stop blinking after plug in. Check C9B01, C9B02, C9B10, and C9B11 (1000 UFD 16) on the DM PCB, if they are bad replace them with part # 181P734030 (680 UFD 16 V). 5. LED stops blinking after 70 seconds of plug in but will not power on. This model is equipped with a keyboard lock feature; this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds 6. LED stops blinking after 70 seconds of plug in but will not power on. Check for 3.2 volts DC at connector RF pin 4 and 5 on the Signal PCB if low suspect problems with the switches/buttons on the Control PCB part # 935D736001 7. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector RF pin 4 and 5 check good suspect the E2P PCB part # 934C061001

Sep 05, 2007 | Mitsubishi WS-73713 73" Rear Projection...

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