Re: [Repeater-Builder] MTR2000 UHF Service manual
It doesn`t exist. Motorola insists it can only be serviced by them at their depot. Keep your Micors. - Original Message - From: Camilo So To: Repeater-Builder@yahoogroups.com Sent: Monday, October 20, 2008 7:15 PM Subject: Re: [Repeater-Builder] MTR2000 UHF Service manual Oh I forget to mention that I did order a service manual from Motorola 6681096E25 its don't have any circuit diagram on it, What is the correct manual number to order that have a circuit diagram. - Original Message - From: Camilo So To: Repeater-Builder@yahoogroups.com Sent: Monday, October 20, 2008 9:08 PM Subject: [Repeater-Builder] MTR2000 UHF Service manual Need help to order a MTR2000 service manual that have the schematic diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on my bench with a dummy load on the TX out, and apply signal on the RX input with a IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB Sinad, when signal was increased to about 1.0 micro-volts or higher the receiver drop out, as if the agc is overloaded that cut out completely and also drop the TX, Have anyone ever experience this problem before, This is the first time I have seen this kind of problem , and its hard to fix it w/o a diagram. any help is highly appreciated. de w4cso Camilo -- No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.175 / Virus Database: 270.8.2/1738 - Release Date: 10/21/2008 2:10 PM
Re: [Repeater-Builder] MTR2000 UHF Service manual
Hi Milt its nice for your advice,Yes I have work on surface mount way back
maybe 17 years ago at Motorola depot in plantation Florida, and MTR2000 is
totally new to me
and I like to learn something about this unit, I like to remain active so my
old brain won't get frosted, and its boring when you retired doing nothing,
Just got this unit off Ebay, it comes with power cord, two fan blower on the PA
and power supply side, got the programming software RVN4148M MTR2000 Station
RSS R03.02.06 Win, and also ordered the programming cable, now I am a novice
trying to learn from you guys like Eric, I just ordered the Depot manual from
Motorola the price was up $217.00
and I just buy a 11 X 17 Scanner, in case Eric wanted a copy of the manual. and
thanks to all that reply.
73
W4CSO Camilo
- Original Message -
From: Milt
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, October 21, 2008 8:00 AM
Subject: Re: [Repeater-Builder] MTR2000 UHF Service manual
For the benefit of everyone on the list let me advise all of you concerning
the new world of Motorola service; at least when compared to the "old days"
when the MSF5000 was considered the top of the line and the "days of antiquity"
when the Micor was king. I will not even try to find adjectives to describe
the days of the Motrac as the king of the hill as most Motorolans today have no
idea what a Motrac was.
***Disclaimer*** What follows is personal opinion and in no way reflects the
views of the list owners or others on the list. It is also not a timeline.
When Motorola created the MSF5000 they crossed over from the conventional
crystal based designs of many years to a new world of microprocessor based
design. The letters MSF stood for "Maximum Station Flexability" and the MSF
was a very capable station. By using software or the R1800 programmer the
parameters could be changed easily in the field, repeatedly. It covered wide
swaths of RF spectrum in a single radio. Along with the other microprocessor
based radios that Motorola was developing it completely changed the direction
that most radio shops were going.
The new world of radios created a servicing nightmare. The guy on the bench
who had been dealing with crystal based designs and leaded componets all his
life now had to decide to either update his skills or maybe look elsewhere. A
lot of turnover started to take place in the service environment. And then
there was that part about being on a mountaintop with a non functioning radio;
how did you drag all the items needed to troubleshoot and repair a PLL circuit
based radio with you? Or did you drag the station back to the shop?
Motorola made a decision that the generation of station equipment that
followed the MSF5000 would be based on the concept of Field Replacable Units.
Basically break the radio down into building blocks that can easily be swapped
out wherever theradio is located with a minimum amount of effort and equipment.
Thus the Quantar radio was designed to be a series of modules in a backplane.
Initially no service information was released beyond simple, basic in/out
diagrams. A similar philosophy holds true with the MTR2000 radio and will, I
am sure, continue into the future. One reason is the complexity of the
circuitry and the extensive use of leadless componets and new generation chips
which combine a multitude of functions in a single device. Another is the need
for specialized test and rework equipment in order to even attempt to
troubleshoot or repair the circuit boards.
As Eric pointed out, you can procure a Depot level manual from Motorola which
will have all the required information and schematics. If you are equipped to
deal with high density surface mount rework, then go for it. Otherwise there
is the depot.
Good Luck
Milt
N3LTQ
- Original Message -
From: Camilo So
To: Repeater-Builder@yahoogroups.com
Sent: Monday, October 20, 2008 9:15 PM
Subject: Re: [Repeater-Builder] MTR2000 UHF Service manual
Oh I forget to mention that I did order a service manual from Motorola
6681096E25 its don't have any circuit diagram on it, What is the correct manual
number to order
that have a circuit diagram.
- Original Message -
From: Camilo So
To: Repeater-Builder@yahoogroups.com
Sent: Monday, October 20, 2008 9:08 PM
Subject: [Repeater-Builder] MTR2000 UHF Service manual
Need help to order a MTR2000 service manual that have the schematic
diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on my
bench with a dummy load on the TX out, and apply signal on the RX input with a
IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB Sinad, when
signal
was increased to about 1.0 micro-volts or higher the receiver drop out,
as if the agc is overloaded that cut o
Re: [Repeater-Builder] MTR2000 UHF Service manual
For the benefit of everyone on the list let me advise all of you concerning the new world of Motorola service; at least when compared to the "old days" when the MSF5000 was considered the top of the line and the "days of antiquity" when the Micor was king. I will not even try to find adjectives to describe the days of the Motrac as the king of the hill as most Motorolans today have no idea what a Motrac was. ***Disclaimer*** What follows is personal opinion and in no way reflects the views of the list owners or others on the list. It is also not a timeline. When Motorola created the MSF5000 they crossed over from the conventional crystal based designs of many years to a new world of microprocessor based design. The letters MSF stood for "Maximum Station Flexability" and the MSF was a very capable station. By using software or the R1800 programmer the parameters could be changed easily in the field, repeatedly. It covered wide swaths of RF spectrum in a single radio. Along with the other microprocessor based radios that Motorola was developing it completely changed the direction that most radio shops were going. The new world of radios created a servicing nightmare. The guy on the bench who had been dealing with crystal based designs and leaded componets all his life now had to decide to either update his skills or maybe look elsewhere. A lot of turnover started to take place in the service environment. And then there was that part about being on a mountaintop with a non functioning radio; how did you drag all the items needed to troubleshoot and repair a PLL circuit based radio with you? Or did you drag the station back to the shop? Motorola made a decision that the generation of station equipment that followed the MSF5000 would be based on the concept of Field Replacable Units. Basically break the radio down into building blocks that can easily be swapped out wherever theradio is located with a minimum amount of effort and equipment. Thus the Quantar radio was designed to be a series of modules in a backplane. Initially no service information was released beyond simple, basic in/out diagrams. A similar philosophy holds true with the MTR2000 radio and will, I am sure, continue into the future. One reason is the complexity of the circuitry and the extensive use of leadless componets and new generation chips which combine a multitude of functions in a single device. Another is the need for specialized test and rework equipment in order to even attempt to troubleshoot or repair the circuit boards. As Eric pointed out, you can procure a Depot level manual from Motorola which will have all the required information and schematics. If you are equipped to deal with high density surface mount rework, then go for it. Otherwise there is the depot. Good Luck Milt N3LTQ - Original Message - From: Camilo So To: Repeater-Builder@yahoogroups.com Sent: Monday, October 20, 2008 9:15 PM Subject: Re: [Repeater-Builder] MTR2000 UHF Service manual Oh I forget to mention that I did order a service manual from Motorola 6681096E25 its don't have any circuit diagram on it, What is the correct manual number to order that have a circuit diagram. - Original Message - From: Camilo So To: Repeater-Builder@yahoogroups.com Sent: Monday, October 20, 2008 9:08 PM Subject: [Repeater-Builder] MTR2000 UHF Service manual Need help to order a MTR2000 service manual that have the schematic diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on my bench with a dummy load on the TX out, and apply signal on the RX input with a IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB Sinad, when signal was increased to about 1.0 micro-volts or higher the receiver drop out, as if the agc is overloaded that cut out completely and also drop the TX, Have anyone ever experience this problem before, This is the first time I have seen this kind of problem , and its hard to fix it w/o a diagram. any help is highly appreciated. de w4cso Camilo
Re: [Repeater-Builder] MTR2000 UHF Service manual
I am very sorry Eric if I have offended you, I have good intention I know this is a problem no body have encounter, and its a very interesting trouble to look into, what cost the cutout if stronger signal is apply, anyway sorry and thank you for your help. 73 Camilo - Original Message - From: Eric Lemmon To: Repeater-Builder@yahoogroups.com Sent: Monday, October 20, 2008 9:56 PM Subject: RE: [Repeater-Builder] MTR2000 UHF Service manual Negative. I do not perform testing for Motorola. You can send it to Motorola yourself for testing and/or repair. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Camilo So Sent: Monday, October 20, 2008 6:47 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] MTR2000 UHF Service manual Thank you Eric, Do you want me to sent you the receiver module so you can test it,seeing is believing, there is always a first time, and then after that you can sent it to Motorola on my behalf, and charge me for all the expenses in return. 73 Camilo W4CSO - Original Message - From: Eric Lemmon <mailto:[EMAIL PROTECTED]> To: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder@yahoogroups.com> Sent: Monday, October 20, 2008 9:29 PM Subject: RE: [Repeater-Builder] MTR2000 UHF Service manual Camilo, The modules in the MTR2000 station are not user-serviceable, so the field service manuals do not contain schematic diagrams. If you believe that the receiver module is defective, you should send it to the Motorola Infrastructure Depot for repair. I currently have six MTR2000 stations in service, but have never seen the problem you describe. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> [mailto:Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Camilo So Sent: Monday, October 20, 2008 6:09 PM To: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> Subject: [Repeater-Builder] MTR2000 UHF Service manual Need help to order a MTR2000 service manual that have the schematic diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on my bench with a dummy load on the TX out, and apply signal on the RX input with a IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB Sinad, when signal was increased to about 1.0 micro-volts or higher the receiver drop out, as if the agc is overloaded that cut out completely and also drop the TX, Have anyone ever experience this problem before, This is the first time I have seen this kind of problem , and its hard to fix it w/o a diagram. any help is highly appreciated. de w4cso Camilo
RE: [Repeater-Builder] MTR2000 UHF Service manual
Negative. I do not perform testing for Motorola. You can send it to
Motorola yourself for testing and/or repair.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Camilo So
Sent: Monday, October 20, 2008 6:47 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] MTR2000 UHF Service manual
Thank you Eric, Do you want me to sent you the receiver module so you can
test it,seeing is believing, there is always a first time, and then after
that you can sent it to Motorola on my behalf, and charge me for all the
expenses in return.
73 Camilo W4CSO
- Original Message -
From: Eric Lemmon <mailto:[EMAIL PROTECTED]>
To: Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder@yahoogroups.com>
Sent: Monday, October 20, 2008 9:29 PM
Subject: RE: [Repeater-Builder] MTR2000 UHF Service manual
Camilo,
The modules in the MTR2000 station are not user-serviceable, so the
field
service manuals do not contain schematic diagrams. If you believe
that the
receiver module is defective, you should send it to the Motorola
Infrastructure Depot for repair. I currently have six MTR2000
stations in
service, but have never seen the problem you describe.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder%40yahoogroups.com>
[mailto:Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Camilo So
Sent: Monday, October 20, 2008 6:09 PM
To: Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder%40yahoogroups.com>
Subject: [Repeater-Builder] MTR2000 UHF Service manual
Need help to order a MTR2000 service manual that have the schematic
diagram
of the receiver unit, Got this unit from Ebay, Hook up the unit on
my bench
with a dummy load on the TX out, and apply signal on the RX input
with a
IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB
Sinad,
when signal
was increased to about 1.0 micro-volts or higher the receiver drop
out, as
if the agc is overloaded that cut out completely and also drop the
TX, Have
anyone ever
experience this problem before, This is the first time I have seen
this kind
of problem , and its hard to fix it w/o a diagram. any help is
highly
appreciated.
de w4cso Camilo
Re: [Repeater-Builder] MTR2000 UHF Service manual
Thank you Eric, Do you want me to sent you the receiver module so you can test it,seeing is believing, there is always a first time, and then after that you can sent it to Motorola on my behalf, and charge me for all the expenses in return. 73 Camilo W4CSO - Original Message - From: Eric Lemmon To: Repeater-Builder@yahoogroups.com Sent: Monday, October 20, 2008 9:29 PM Subject: RE: [Repeater-Builder] MTR2000 UHF Service manual Camilo, The modules in the MTR2000 station are not user-serviceable, so the field service manuals do not contain schematic diagrams. If you believe that the receiver module is defective, you should send it to the Motorola Infrastructure Depot for repair. I currently have six MTR2000 stations in service, but have never seen the problem you describe. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Camilo So Sent: Monday, October 20, 2008 6:09 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] MTR2000 UHF Service manual Need help to order a MTR2000 service manual that have the schematic diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on my bench with a dummy load on the TX out, and apply signal on the RX input with a IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB Sinad, when signal was increased to about 1.0 micro-volts or higher the receiver drop out, as if the agc is overloaded that cut out completely and also drop the TX, Have anyone ever experience this problem before, This is the first time I have seen this kind of problem , and its hard to fix it w/o a diagram. any help is highly appreciated. de w4cso Camilo
RE: [Repeater-Builder] MTR2000 UHF Service manual
The UHF Depot Manual contains the schematics. Order 6881096E35. It costs
about $195. It is not available for download, since it is copyrighted and
still in print.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Camilo So
Sent: Monday, October 20, 2008 6:16 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] MTR2000 UHF Service manual
Oh, I forget to mention that I did order a service manual from Motorola,
6681096E25. It doesn't have any circuit diagrams in it. What is the
correct manual number to order
that has a circuit diagram?
- Original Message -
From: Camilo So <mailto:[EMAIL PROTECTED]>
To: Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder@yahoogroups.com>
Sent: Monday, October 20, 2008 9:08 PM
Subject: [Repeater-Builder] MTR2000 UHF Service manual
Need help to order a MTR2000 service manual that have the schematic
diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on
my bench with a dummy load on the TX out, and apply signal on the RX input
with a IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB
Sinad, when signal
was increased to about 1.0 micro-volts or higher the receiver drop
out, as if the agc is overloaded that cut out completely and also drop the
TX, Have anyone ever
experience this problem before, This is the first time I have seen
this kind of problem , and its hard to fix it w/o a diagram. any help is
highly appreciated.
de w4cso Camilo
RE: [Repeater-Builder] MTR2000 UHF Service manual
Camilo, The modules in the MTR2000 station are not user-serviceable, so the field service manuals do not contain schematic diagrams. If you believe that the receiver module is defective, you should send it to the Motorola Infrastructure Depot for repair. I currently have six MTR2000 stations in service, but have never seen the problem you describe. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Camilo So Sent: Monday, October 20, 2008 6:09 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] MTR2000 UHF Service manual Need help to order a MTR2000 service manual that have the schematic diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on my bench with a dummy load on the TX out, and apply signal on the RX input with a IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB Sinad, when signal was increased to about 1.0 micro-volts or higher the receiver drop out, as if the agc is overloaded that cut out completely and also drop the TX, Have anyone ever experience this problem before, This is the first time I have seen this kind of problem , and its hard to fix it w/o a diagram. any help is highly appreciated. de w4cso Camilo
Re: [Repeater-Builder] MTR2000 UHF Service manual
Oh I forget to mention that I did order a service manual from Motorola 6681096E25 its don't have any circuit diagram on it, What is the correct manual number to order that have a circuit diagram. - Original Message - From: Camilo So To: Repeater-Builder@yahoogroups.com Sent: Monday, October 20, 2008 9:08 PM Subject: [Repeater-Builder] MTR2000 UHF Service manual Need help to order a MTR2000 service manual that have the schematic diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on my bench with a dummy load on the TX out, and apply signal on the RX input with a IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB Sinad, when signal was increased to about 1.0 micro-volts or higher the receiver drop out, as if the agc is overloaded that cut out completely and also drop the TX, Have anyone ever experience this problem before, This is the first time I have seen this kind of problem , and its hard to fix it w/o a diagram. any help is highly appreciated. de w4cso Camilo
[Repeater-Builder] MTR2000 UHF Service manual
Need help to order a MTR2000 service manual that have the schematic diagram of the receiver unit, Got this unit from Ebay, Hook up the unit on my bench with a dummy load on the TX out, and apply signal on the RX input with a IFR1200, The squelch open at 0.12 micro-volt at 0.15 uv its 12 DB Sinad, when signal was increased to about 1.0 micro-volts or higher the receiver drop out, as if the agc is overloaded that cut out completely and also drop the TX, Have anyone ever experience this problem before, This is the first time I have seen this kind of problem , and its hard to fix it w/o a diagram. any help is highly appreciated. de w4cso Camilo
