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I need a schematic

Rx works but Tx is dead. Hard to do much without schematic

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  • Kevin Sack
    Kevin Sack Apr 11, 2015

    It seems the Make and model were left off my question. My request is for the schematic for a GME GX300 marine band tranciever

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  • Radio Commun... Master
  • 1,795 Answers

Hard to do much without knowing what radio we are talking about here. Its more than likely a tx keying diode .

Posted on Apr 15, 2015

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SOURCE: tx: fine rx : no..

Your power output has blown, they are called your "finals" they can be replaced quite cheaply.

Posted on Sep 05, 2009

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1 Answer

I need wire colors for CB microphone its a TRC


ALTAI PWR MIC - black/braid= earth, red=RX, white=TX, Yellow=MODASTATIC - blue/braid=earth, black=RX, red=TX, white=MOD, Yellow=Spare
SIRTEL ECHO MIC CBE 2002 - black/braid=earth, blue=TX, white=RX, red=MOD007 POWER MIC - brown/braid=earth, green=RX, white=TX, blue=MODSADELTA EC 980 - braid=earth, green=RX, brn=TX, white=MOD
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1 Answer

I have a Vintage kinematix reverb with 5 wires red,yellow,white,brown and black how I hook it up what are the wire? it also has a delay tuning knob


usualy you have a transmit recieve switch
like this
.....common
RX <<-- >TX ptt

so three wires
the ptt button common in a cb with 4 pins is also ground
should be
black screen and i think brown
but you need to meter out the ptt common and RX TX
for rx audio switched radios then one pin is RX one pin is TX one pin is common or ground for the PTT and also ground for the screening copper braids and also ground for the transmit audio
so you have 5 wires
3 will be PTT 1 will be audio and one audio ground
usually white or yellow
so i think black and yellow or black and white
black being ground

just look up the schematic or service manual for your CB
and check out the 4 pin plug config
there is only two usual ones
cybernet or uniden so.. easy stuff
look for like cybernet cb 4 pin wireup in google or similar
remember just meter out using the beep test range on a cheep multimeter too see which three are the PTT
so the common of the ptt needs connected to the copper screening and also to the black wire all to the ground pin on the 4 pin plug
you can short from the ground pin on the cb side to its TX pin and the set will enter tx mode
same with rx audio enable {if uses most cb post 1984 dont use RX audio hard switching}
so just three pins to worry about

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1 Answer

Cloning cable motorola gp2000


You can find a schematic from here: http://www.batlabs.com/images/gp2000.jpg. Since this is a three ring audio connector, the bottom ring will be common. I would suspect that the tip and first ring would be transposed to allow simultaneous TX/RX. Should not be hard to build.

Jun 25, 2014 | Radio Communications

1 Answer

Cobra schematics


go to www.cbtricks.com look for radios ,schematics , etc.click on it the click on C . Go to cobra (dynascan) and click on that.Now look for your radio and click on it depending on what radio you have you should find what you need here.

May 07, 2014 | Radio Communications

1 Answer

148 gtl cobra cb radio and the rx/tx light stay on


This sounds like a problem with the MB3756 Regulator IC. It controls voltage regulation and TX/RX Switching. It is a common failure in these radios. Check voltages with schematic that can be found at
CB Tricks Home Page

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1 Answer

I have expanded my 25 ltd and want a rx/tx fine tune possibly using the rf gain control?


look at a schematic of a 29ltd to do that.. the 25 does'nt have it in there easily.. the 29 can be fixed to change tx/rx freq. with the delta tune

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1 Answer

Please send me Canon Ir all model Error code. How can solve it?


Error codes for iR2016i,2020i for other machines codes you need to get the specific manual, these manuals can be downloaded from Ebay, look for user ID ultimate_sacrifice A seller on Ebay.
No. Tx/Rx Description
##0100 [Tx] at time of transmission, the procedural signal has been transmitted more than
specified.
##0101 [Tx/Rx] the modem speed does not match that of the other party.
##0102 [Tx] at time of transmission, fall-back cannot be used.
##0103 [Rx] at time of reception, EOL cannot be detected for 5 sec (15 sec if CBT).
##0104 [Tx] at time of transmission, RTN or PIN is received.
##0106 [Rx] at time of reception, the procedural signal is received for 6 sec while in wait for the
signal.
##0107 [Rx] at time of reception, the transmitting party cannot use fall-back.
##0109 [Tx] at time of transmission, a signal other than DIS, DTC, FTT, CFR, or CRP is
received, and the procedural signal has been sent more than specified.
##0111 [Tx/Rx] memory error has occurred.
##0114 [Rx] at time of reception, RTN is transmitted.
##0200 [Rx] at time of reception, no image carrier is detected for 5 sec.
##0201 [Tx/Rx] DCN is received outside the normal parity procedure.
##0220 [Tx/Rx] system error (main program out of control) has occurred.
##0232 [Tx] encoding error has occurred.
##0237 [Rx] decoding error has occurred.
##0261 [Tx/Rx] system error has occurred.
##0280 [Tx] at time of transmission, the procedural signal has been transmitted more than
specified.
##0281 [Tx] at time of transmission, the procedural signal has been transmitted more than
specified.
##0282 [Tx] at time of transmission, the procedural signal has been transmitted more than
specified.
##0283 [Tx] at time of transmission, the procedural signal has been transmitted more than
specified.
##0284 [Tx] at time of transmission, DCN is received after transmission of TCF.
##0285 [Tx] at time of transmission, DCN is received after transmission of EOP.
##0286 [Tx] at time of transmission, DCN is received after transmission of EOM.
##0287 [Tx] at time of transmission DCN is received after transmission of MPS.
##0288 [Tx] after transmission of EOP, a signal other than PIN, PIP, MCF, RTP, or RTN has
been received.
##0289 [Tx] after transmission of EOM, a signal other than PIN, PIP, MCF, RTP, or RTN has
been received.
##0290 [Tx] after transmission of MPS, a signal other than PIN, PIP, MCF, RTP, or RTN has
been received.
##0670 [Tx] at time of V.8 late start, the V.8 ability of DIS front the receiving party is expected
to be detected, and the CI signal is expected to be transmitted in response; however,
the procedure fails to advance, and the line is released because of T1 time-out.
##0671 [Rx] at time of V.8 arrival, procedure fails to move to phase 2 after detection of CM
signal from caller, causing T1 time-out and releasing line
##0672 [Tx] at time of V.34 transmission, a shift in procedure from phase 2 to phase 3 and
thereafter stops, causing the machine to release the line and suffer T1 timeout.

Dec 12, 2009 | Office Equipment & Supplies

1 Answer

No tx


bad cable? tx rx need to be reverse, tx to rx rx to tx. u probably know that.

Nov 08, 2009 | IMC Networks (55-12139) (52-10195)...

1 Answer

Cannot send or receive a fax. I can hear a click when I hit tone and that?s it. It worked before but after I fixed error 6502 nothing.


(2) Service error codes
on.
- Logic board
#001 TX Document jam
#003 TX / RX Document is too long, or page time-over
#005 TX / RX Initial identification (T0 / T1) time-over
#009 RX Recording paper jam, or no recording paper
#012 TX No recording paper at the receiving machine
#017 TX Redial time-over, but no DT detected
#018 TX Auto dialing transmission error, or redial time-over
#022 TX Call failed (no dial registration)
#037 RX Memory overflow at reception of an image
#085 TX No color fax function supported in the receiving machine
#099 TX / RX Transmission terminated mid-way by pressing the Stop/Reset button
#995 TX / RX During TX (sending): Memory transmission reservation cancelled
During RX (receiving): Image data received in the memory cleared
Error code TX / RX Meaning
##100 TX Re-transmission of the procedure signal has been attempted the specified number of times, but failed.
##101 TX / RX Sender's modem speed does not match the receiving machine.
##102 TX Fallback is not available.
##103 RX EOL has not been detected for 5 seconds (or 15 seconds in CBT).
##104 TX RTN or PIN has been received.
##106 RX The procedure signal has been expected for 6 seconds, but not received.
##107 RX Fallback is not available at the sending machine.
##109 TX After DCS transmission, a signal other than DIS, DTC, FTT, CFR, or CRP has been received, and re-transmission of the
procedure signal has been attempted the specified number of times but failed.
##111 TX / RX Memory error
##114 RX RTN has been received.
##200 RX A carrier has not been detected for 5 seconds during image reception.
##201 TX / RX DCN has been received in a method other than the binary procedure.
##204 TX DTC has been received even when there is no sending data.
##220 TX / RX System error (main program hang-up)
##224 TX / RX An error has occurred in the procedure signal in G3 transmission.
##226 TX / RX The stack pointer has shifted from the RAM area.
##229 RX The recording area has been locked for 1 minute.
##232 TX The encoder control unit has malfunctioned.
##237 RX The decoder control unit has malfunctioned.
##238 RX The print control unit has malfunctioned.
##261 TX / RX A system error has occurred between the modem and the system control board.
1-7

Oct 13, 2009 | Canon PIXMA MP830 All-In-One InkJet...

1 Answer

Cannot send or receive a fax. I can hear a click when I hit tone and that?s it. It worked before but after I fixed error 6502 nothing.


(2) Service error codes
on.
- Logic board
#001 TX Document jam
#003 TX / RX Document is too long, or page time-over
#005 TX / RX Initial identification (T0 / T1) time-over
#009 RX Recording paper jam, or no recording paper
#012 TX No recording paper at the receiving machine
#017 TX Redial time-over, but no DT detected
#018 TX Auto dialing transmission error, or redial time-over
#022 TX Call failed (no dial registration)
#037 RX Memory overflow at reception of an image
#085 TX No color fax function supported in the receiving machine
#099 TX / RX Transmission terminated mid-way by pressing the Stop/Reset button
#995 TX / RX During TX (sending): Memory transmission reservation cancelled
During RX (receiving): Image data received in the memory cleared
Error code TX / RX Meaning
##100 TX Re-transmission of the procedure signal has been attempted the specified number of times, but failed.
##101 TX / RX Sender's modem speed does not match the receiving machine.
##102 TX Fallback is not available.
##103 RX EOL has not been detected for 5 seconds (or 15 seconds in CBT).
##104 TX RTN or PIN has been received.
##106 RX The procedure signal has been expected for 6 seconds, but not received.
##107 RX Fallback is not available at the sending machine.
##109 TX After DCS transmission, a signal other than DIS, DTC, FTT, CFR, or CRP has been received, and re-transmission of the
procedure signal has been attempted the specified number of times but failed.
##111 TX / RX Memory error
##114 RX RTN has been received.
##200 RX A carrier has not been detected for 5 seconds during image reception.
##201 TX / RX DCN has been received in a method other than the binary procedure.
##204 TX DTC has been received even when there is no sending data.
##220 TX / RX System error (main program hang-up)
##224 TX / RX An error has occurred in the procedure signal in G3 transmission.
##226 TX / RX The stack pointer has shifted from the RAM area.
##229 RX The recording area has been locked for 1 minute.
##232 TX The encoder control unit has malfunctioned.
##237 RX The decoder control unit has malfunctioned.
##238 RX The print control unit has malfunctioned.
##261 TX / RX A system error has occurred between the modem and the system control

Oct 13, 2009 | Canon PIXMA MP830 All-In-One InkJet...

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