Question about Toshiba 43H71 43" Rear Projection Television

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Signal board jumper wires?

Can you clarify what you mean by soldering jumper wires 008, 010, etc? I can't find a reference to these anywhere.

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  • hobbystuff Aug 21, 2008

    Thanks for the quick response. So these are wires in parallel with the traces for better current carying? I see an inductor and 4.7k resistor in the +/-16v paths to the STKs, but no jumper wires near the STKs (actual board is back in the set right now). If this is something I need to add, what do the numbers you list mean? Where should thes jumpers be connected - are there specifics posted on another thread somewhere (I tried to search)? Thanks!!!

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Hard wire jumpers feeding voltage to convergence circuitry located between board edge and current limiting resistors & near STK IC's.................HTH........................T.

Most H-line Toshiba's have them......

Posted on Aug 21, 2008

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1 Answer

How to change the potmeter


If you mean potentiometer, it is more in likely soldered to the circuit board, so the chassis needs to be carefully removed, then you will need a de soldering iron to remove pot, take note of wiring, usually only two wires connected, and sometimes one tab on pot is soldered as a ground jumper, replace with same spec, 250 ohm, 500 ohm, etc... re solder new pot in same position...

Make sure what you are working on is unplugged and any capacitors are discharged...

Safety First...

Hope this helps?

Mar 10, 2015 | Miscellaneous

1 Answer

Starting problems. have engine codes from auto garage. P0113 and 6 abs codes. 1999 dodge durango. 5.9 engine


A code P0113 may mean that one or more of the following has happened:
  • Internally failed IAT sensor
  • Faulty connection at IAT sensor
  • Open in IAT ground circuit or signal circuit
  • Short to voltage in IAT signal circuit or reference circuit
  • IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
  • Faulty PCM (less likely but not impossible)
Possible Solutions First, if you have access to a scan tool, is there an IAT reading? If the IAT reading is logical then the problem is likely intermittent. If the reading is less than -30 degrees, unplug the connector. Install a jumper wire between the harness connector signal and ground circuits. The IAT temperature reading on the scan tool should be maxed out at the high end. For example it should be 280 degrees Farenheit or higher. If it is, the wiring is okay, and it may have been the connection. If it isn't install the jumper wire between the IAT signal circuit and the chassis ground.
If now the IAT reading on the scan tool is maxed out then check for an open in the IAT ground circuit. If you get no reading at all on the scan tool, it's likely that the sensor signal is open or the 5 volt reference is missing. Check using a DVOM (digital volt ohm meter) for a 5 volt reference. If it's there, then unplug the connector at the PCM and check for continuity on the IAT signal circuit between the PCM connector and the IAT connector.

Dec 06, 2011 | 1999 Dodge Durango

1 Answer

Won't start, has spark at plug, fuel pump sounds like it turns on, starter is working, obd11 code p0113


OBD II DTC P0113 - Intake Air Temperature Circuit High Input

This code means that the Powertrain Control Module (PCM) monitors the temperature of the air entering the engine. The PCM supplies a 5 volt reference voltage to the Intake Air Temperature (IAT) sensor. The IAT is a thermistor that varies resistance based on temperature. As the temperature increases, resistance decreases. Low temperature results in a high signal voltage. When the PCM sees a signal voltage higher than 5 volts, it sets this P0113 check engine light code.

There will likely be no symptoms other than illumination of the Malfunction Indicator Lamp (MIL - Check Engine Light / Service Engine Soon).

A code P0113 may mean that one or more of the following has happened:
Internally failed IAT sensor
Faulty connection at IAT sensor
Open in IAT ground circuit or signal circuit
Short to voltage in IAT signal circuit or reference circuit
IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
Faulty PCM (less likely but not impossible)

To solve it, first, if you have access to a scan tool, is there an IAT reading? If the IAT reading is logical then the problem is likely intermittent. If the reading is less than -30 degrees, unplug the connector. Install a jumper wire between the harness connector signal and ground circuits. The IAT temperature reading on the scan tool should be maxed out at the high end. For example it should be 280 degrees Farenheit or higher. If it is, the wiring is okay, and it may have been the connection. If it isn't install the jumper wire between the IAT signal circuit and the chassis ground.

If now the IAT reading on the scan tool is maxed out then check for an open in the IAT ground circuit. If you get no reading at all on the scan tool, it's likely that the sensor signal is open or the 5 volt reference is missing. Check using a DVOM (digital volt ohm meter) for a 5 volt reference. If it's there, then unplug the connector at the PCM and check for continuity on the IAT signal circuit between the PCM connector and the IAT connector.

Hope this helps; remember to rating this free answer and leave us a testimonial comments.

Oct 13, 2011 | 2006 Dodge Grand Caravan

1 Answer

Codes p 0113 caravan


i found this info for you online, hope this helps

A code P0113 may mean that one or more of the following has happened:
  • Internally failed IAT sensor
  • Faulty connection at IAT sensor
  • Open in IAT ground circuit or signal circuit
  • Short to voltage in IAT signal circuit or reference circuit
  • IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
  • Faulty PCM (less likely but not impossible)
Possible Solutions First, if you have access to a scan tool, is there an IAT reading? If the IAT reading is logical then the problem is likely intermittent. If the reading is less than -30 degrees, unplug the connector. Install a jumper wire between the harness connector signal and ground circuits. The IAT temperature reading on the scan tool should be maxed out at the high end. For example it should be 280 degrees Farenheit or higher. If it is, the wiring is okay, and it may have been the connection. If it isn't install the jumper wire between the IAT signal circuit and the chassis ground.
If now the IAT reading on the scan tool is maxed out then check for an open in the IAT ground circuit. If you get no reading at all on the scan tool, it's likely that the sensor signal is open or the 5 volt reference is missing. Check using a DVOM (digital volt ohm meter) for a 5 volt reference. If it's there, then unplug the connector at the PCM and check for continuity on the IAT signal circuit between the PCM connector and the IAT connector.

Sep 11, 2011 | 2004 Dodge Ram 1500

1 Answer

Need wiring diagram for eMachine 20030812 motherboard!!!


You should be able to see the words/letters that go with the jumpers on the motherboard itself. look around the jumper settings area for power, pwr etc. and match them up with your jumpers which should have what the go to on them.

Apr 10, 2009 | E-Machines eMachines Refurbished EMA...

1 Answer

Burnt spot on board


Depending on what caused the burn spot. It is possible to solder a bridge or jump wire from the point on the board that is not damaged and follow the trace or film connection to the next point that is to connect the two points. Other wise find a solder point on one side of the burn and if you can follow the path to the next solder point, use a jumper wire and solder each connection bridging over the burn. Wire has to be insulated. Some burn spots are caused by poor factory dipping of the board, and the solder loses connection over time from heat etc.

Jan 26, 2009 | RCA D61W20 61" Rear Projection Television

1 Answer

More on signal board jumpers


I will try my best to explain.....hard wires connect two circuit
traces together and are not in parallel with any component.They are used where a component is not needed.....however, the 16v
supplies must travel from the main board where the F850 &F851 fuses are to the signal board where the STK's are....after the two B+ volts pass thru the two PCB edge connectors,typically on an "H" line Toshiba en route to the STK current limiting resistors there are hard wire jumpers with NUMBER locations marked on the PCB.Just " Follow the path the voltages take" & solder all connects.......
Next thought = What brand / quality / price were your new,replacement IC's ?? = Toshiba,Sanyo or.....Chinese junk?
..........................T.

Aug 21, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

Convergence fuse Toshiba rear projection tv


Wire jumpers need re-soldering....Locations 008,010,017 etc
on inside edge of signal board near convergence IC's.....research
my Toshiba " H " Model rear projection " blows fuses" solutions.
...................................T.

Jan 27, 2008 | Toshiba 55H70 55" Rear Projection...

2 Answers

Power indicator light blinking


Check soldered in micro fuses...F850, F851 etc.....
1) solder jumper wires on signal board = 008,010,017,048,600
2) Check / replace STK392-110 convergence IC's with Toshiba
part # 23135090 or upgade to Hitachi part # CZ01341
Let me know....................T.

Jan 04, 2008 | Toshiba 65HX81 65" Rear Projection...

1 Answer

Toshiba 42h81 rptv


Pull chassis--check all fuses,esp, F850 & F851.They protect
the B+ supplied to convergence circuit.They are found in the power
supply,on edge of the main board.On the signal board,locate the
large IC's mounted to heatsinks.IC part #  STK392-110.Between the
edge of the signal board and the IC's---locate two grey jumper wires
and some hard wire jumpers = solder them all,if you don't,the fuse may blow again.Next,replace IC's with Hitachi up-grade part
# STK394-160E....Reassemble...power on.....touch magic focus
and you are done....T.     ?????s-----Let me know...

Oct 28, 2007 | Toshiba 42H81 42" Rear Projection...

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