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#1
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weller EC2002C soldering station
I was given this Weller soldering station. The display is not working. It
does flash 888 on it when first turned on. The tip does heat up, but I have not determined if I can vary the heat or not. Also have an extra soldering pencle that plugs in it. Changed them to see if the display would light, but it didnot. Any hints on it ? Also how do I open it up ? Screws under the 4 rubber feet ? |
#2
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weller EC2002C soldering station
Ralph Mowery wrote:
I was given this Weller soldering station. The display is not working. It does flash 888 on it when first turned on. The tip does heat up, but I have not determined if I can vary the heat or not. Also have an extra soldering pencle that plugs in it. Changed them to see if the display would light, but it didnot. Any hints on it ? Also how do I open it up ? Screws under the 4 rubber feet ? I have same model unit with same exact problem. Yest it does regulate the temperature. I haven't figured out the display problem either and the thermistor in the iron seems to "ohm out" properly. Let me know what you find. I never could find schematics for it. I used it just today on a PIC project. Shame to throw it out, but I would like to read the temperature. -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
#3
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weller EC2002C soldering station
I think something is getting hung during the self-test. It should flash 888 for two seconds at start-up. The sensor is a platinum RTD. Pretty fancy for a soldering iron! Too bad this model has earned a reputation for being unreliable. There's a "tech sheet" with trouble shooting info but I've never found it online. We had one of these irons at work and replaced it with a WTCP station. RFI-EMI-GUY wrote in : I have same model unit with same exact problem. Yest it does regulate the temperature. I haven't figured out the display problem either and the thermistor in the iron seems to "ohm out" properly. Let me know what you find. I never could find schematics for it. I used it just today on a PIC project. Shame to throw it out, but I would like to read the temperature. |
#4
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weller EC2002C soldering station
"RFI-EMI-GUY" wrote in message ... I have same model unit with same exact problem. Yest it does regulate the temperature. I haven't figured out the display problem either and the thermistor in the iron seems to "ohm out" properly. Let me know what you find. I never could find schematics for it. I used it just today on a PIC project. Shame to throw it out, but I would like to read the temperature. -- Joe Leikhim K4SAT I found several schematics for different models. Never did find the one that matches mine. I opened it up and it seems there is a ceramic board with surface devices on it. Almost no user replicable parts. Atleast for my skill level. I was hoping it would be the discrete parts. I can work with them. Oh well, it was free and is a good soldering iron even without the display. I do have a couple of spare parts for it also. de KU4PT |
#5
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weller EC2002C soldering station
I used to work for a company (ARCO Oil) that used a bunch of those. Weller
closely guarded their schematics and even now they will not release them. We sent them in for repair but they charged about as much as to buy a new one. Here is what I found over fixing a dozen or so. 1) The wire nuts came loose inside 2) Intermittent wires in the cable going to the soldering iron. Flex the cable while ohming end to end. 3) The surface mount electrolytics go bad. These were MOST of the failures and I ended up changing all of them in the rest of the 25 irons we used over about 3 years. 4) The cheap temperature set wire wound pot gets worn out. Most of the parts in this unit are consumer rated parts and are available. Never had any problems with the ceramic boards in the units or with the printed resistors on them. Had a couple of chips fail. It's an A to D with a seven segment driver built in. They are available still. Other than the above, they are really a darn good soldering iron and keep the tip temperature regulated fairly closely. I still have 2 of them so if you decide to throw them away, send them to me and I can use them for parts to keep mine in repair. I will reimburse you for your shipping. I have more info If you need it. Rich Klesstinez 3728 Crestline Rd Fort Worth Tx 76107 Email: (my name, lower case, no spaces) at charter (dot) net "Ralph Mowery" wrote in message ... "RFI-EMI-GUY" wrote in message ... I have same model unit with same exact problem. Yest it does regulate the temperature. I haven't figured out the display problem either and the thermistor in the iron seems to "ohm out" properly. Let me know what you find. I never could find schematics for it. I used it just today on a PIC project. Shame to throw it out, but I would like to read the temperature. -- Joe Leikhim K4SAT I found several schematics for different models. Never did find the one that matches mine. I opened it up and it seems there is a ceramic board with surface devices on it. Almost no user replicable parts. Atleast for my skill level. I was hoping it would be the discrete parts. I can work with them. Oh well, it was free and is a good soldering iron even without the display. I do have a couple of spare parts for it also. de KU4PT |
#6
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weller EC2002C soldering station
Rich Klestinez wrote:
I used to work for a company (ARCO Oil) that used a bunch of those. Weller closely guarded their schematics and even now they will not release them. We sent them in for repair but they charged about as much as to buy a new one. Here is what I found over fixing a dozen or so. 1) The wire nuts came loose inside 2) Intermittent wires in the cable going to the soldering iron. Flex the cable while ohming end to end. 3) The surface mount electrolytics go bad. These were MOST of the failures and I ended up changing all of them in the rest of the 25 irons we used over about 3 years. 4) The cheap temperature set wire wound pot gets worn out. Most of the parts in this unit are consumer rated parts and are available. Never had any problems with the ceramic boards in the units or with the printed resistors on them. Had a couple of chips fail. It's an A to D with a seven segment driver built in. They are available still. Other than the above, they are really a darn good soldering iron and keep the tip temperature regulated fairly closely. I still have 2 of them so if you decide to throw them away, send them to me and I can use them for parts to keep mine in repair. I will reimburse you for your shipping. I have more info If you need it. Rich Klesstinez 3728 Crestline Rd Fort Worth Tx 76107 Email: (my name, lower case, no spaces) at charter (dot) net "Ralph Mowery" wrote in message ... "RFI-EMI-GUY" wrote in message ... I have same model unit with same exact problem. Yest it does regulate the temperature. I haven't figured out the display problem either and the thermistor in the iron seems to "ohm out" properly. Let me know what you find. I never could find schematics for it. I used it just today on a PIC project. Shame to throw it out, but I would like to read the temperature. -- Joe Leikhim K4SAT I found several schematics for different models. Never did find the one that matches mine. I opened it up and it seems there is a ceramic board with surface devices on it. Almost no user replicable parts. Atleast for my skill level. I was hoping it would be the discrete parts. I can work with them. Oh well, it was free and is a good soldering iron even without the display. I do have a couple of spare parts for it also. de KU4PT Rich; Since the temperature control on mine seems to be working can I assume the variable pot, the Iron cable and the Iron thermistor are OK? Mine flashes "EEE" on turn on and then the display goes blank. There are a number of leaded capacitors on the display board (Mine is actually an older model 2002-A version). I will try "shotgunning" a;; of the capacitors with new ones and keep you in mind for the disposal if I buy a replacement. -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
#7
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weller EC2002C soldering station
Joe: The ones that I have. One board is with the distplays on it has a
couple of regular caps. The other board is ceramic and it had all surface mount parts. The ceramic board is the one that seems to always give me the problems. Anyway give it a try. rich "RFI-EMI-GUY" wrote in message ... Rich Klestinez wrote: I used to work for a company (ARCO Oil) that used a bunch of those. Weller closely guarded their schematics and even now they will not release them. We sent them in for repair but they charged about as much as to buy a new one. Here is what I found over fixing a dozen or so. 1) The wire nuts came loose inside 2) Intermittent wires in the cable going to the soldering iron. Flex the cable while ohming end to end. 3) The surface mount electrolytics go bad. These were MOST of the failures and I ended up changing all of them in the rest of the 25 irons we used over about 3 years. 4) The cheap temperature set wire wound pot gets worn out. Most of the parts in this unit are consumer rated parts and are available. Never had any problems with the ceramic boards in the units or with the printed resistors on them. Had a couple of chips fail. It's an A to D with a seven segment driver built in. They are available still. Other than the above, they are really a darn good soldering iron and keep the tip temperature regulated fairly closely. I still have 2 of them so if you decide to throw them away, send them to me and I can use them for parts to keep mine in repair. I will reimburse you for your shipping. I have more info If you need it. Rich Klesstinez 3728 Crestline Rd Fort Worth Tx 76107 Email: (my name, lower case, no spaces) at charter (dot) net "Ralph Mowery" wrote in message ... "RFI-EMI-GUY" wrote in message ... I have same model unit with same exact problem. Yest it does regulate the temperature. I haven't figured out the display problem either and the thermistor in the iron seems to "ohm out" properly. Let me know what you find. I never could find schematics for it. I used it just today on a PIC project. Shame to throw it out, but I would like to read the temperature. -- Joe Leikhim K4SAT I found several schematics for different models. Never did find the one that matches mine. I opened it up and it seems there is a ceramic board with surface devices on it. Almost no user replicable parts. Atleast for my skill level. I was hoping it would be the discrete parts. I can work with them. Oh well, it was free and is a good soldering iron even without the display. I do have a couple of spare parts for it also. de KU4PT Rich; Since the temperature control on mine seems to be working can I assume the variable pot, the Iron cable and the Iron thermistor are OK? Mine flashes "EEE" on turn on and then the display goes blank. There are a number of leaded capacitors on the display board (Mine is actually an older model 2002-A version). I will try "shotgunning" a;; of the capacitors with new ones and keep you in mind for the disposal if I buy a replacement. -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
#8
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weller EC2002C soldering station
"Rich Klestinez" wrote in message ... I used to work for a company (ARCO Oil) that used a bunch of those. Weller closely guarded their schematics and even now they will not release them. We sent them in for repair but they charged about as much as to buy a new one. Here is what I found over fixing a dozen or so. 1) The wire nuts came loose inside 2) Intermittent wires in the cable going to the soldering iron. Flex the cable while ohming end to end. 3) The surface mount electrolytics go bad. These were MOST of the failures and I ended up changing all of them in the rest of the 25 irons we used over about 3 years. 4) The cheap temperature set wire wound pot gets worn out. Most of the parts in this unit are consumer rated parts and are available. Never had any problems with the ceramic boards in the units or with the printed resistors on them. Had a couple of chips fail. It's an A to D with a seven segment driver built in. They are available still. Other than the above, they are really a darn good soldering iron and keep the tip temperature regulated fairly closely. I still have 2 of them so if you decide to throw them away, send them to me and I can use them for parts to keep mine in repair. I will reimburse you for your shipping. I have more info If you need it. Rich Klesstinez 3728 Crestline Rd Fort Worth Tx 76107 Email: (my name, lower case, no spaces) at charter (dot) net Thanks for the reply. I will probably keep the soldering station. It seems to work fine, just no display. Weller made another modle that seemed to be the same unit without the display. I guess that if Weller did repair them, they probably just changed out the controller board. Similar to what the Commador computer people did. They had a flat repair rate. Don;t recall exectally,but it was something like the board cost them $ 50 and they charged about $ 70 to repair the computer. All they did was throw away the old insides and replace them. Seems this way is cheeper than the labor to repair them. |
#9
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weller EC2002C soldering station
Ralph Mowery wrote:
"Rich Klestinez" wrote in message ... I used to work for a company (ARCO Oil) that used a bunch of those. Weller closely guarded their schematics and even now they will not release them. We sent them in for repair but they charged about as much as to buy a new one. Here is what I found over fixing a dozen or so. 1) The wire nuts came loose inside 2) Intermittent wires in the cable going to the soldering iron. Flex the cable while ohming end to end. 3) The surface mount electrolytics go bad. These were MOST of the failures and I ended up changing all of them in the rest of the 25 irons we used over about 3 years. 4) The cheap temperature set wire wound pot gets worn out. Most of the parts in this unit are consumer rated parts and are available. Never had any problems with the ceramic boards in the units or with the printed resistors on them. Had a couple of chips fail. It's an A to D with a seven segment driver built in. They are available still. Other than the above, they are really a darn good soldering iron and keep the tip temperature regulated fairly closely. I still have 2 of them so if you decide to throw them away, send them to me and I can use them for parts to keep mine in repair. I will reimburse you for your shipping. I have more info If you need it. Rich Klesstinez 3728 Crestline Rd Fort Worth Tx 76107 Email: (my name, lower case, no spaces) at charter (dot) net Thanks for the reply. I will probably keep the soldering station. It seems to work fine, just no display. Weller made another modle that seemed to be the same unit without the display. I guess that if Weller did repair them, they probably just changed out the controller board. Similar to what the Commador computer people did. They had a flat repair rate. Don;t recall exectally,but it was something like the board cost them $ 50 and vethey charged about $ 70 to repair the computer. All they did was throw away the old insides and replace them. Seems this way is cheeper than the labor to repair them. ================================================ On the topic of Weller soldering irons , I would appreciate info on the following : At a fleamarket I acquired a Weller soldering iron with a DIL16 de-soldering pad (very handy to remove ICs with up to 16 pins. However , the heater element (Weller part nr 24410 , 24V-50W) is defective (open circuit) By Googling I haven't been successful finding a US supplier for the heater element. Can someone on this NG please help with US supplier info ( in the hope the cost of a replacement element will not make it necessary for me having to talk to my bank manager). TIA for any advice Frank GM0CSZ / KN6WH |
#10
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weller EC2002C soldering station
On Nov 1, 4:23*pm, Grumpy The Mule wrote:
We had one of these irons at work and replaced it with a WTCP station. I cannot say how much I love the WTCP's for being a rugged reliable workhorse. Tim N3QE |
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