Question about Digi Channel Master/tal to Analog Converter/CM-7000

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Channel master cm 7000 capacitors replacement

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Posted on Jan 02, 2017

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  • 8 Answers

SOURCE: My Channel Master CM-7000 D2A TV Converter box is

This is a common problem. There are several capacitors on the power supply and logic board that are bad. Replacement of these parts has restore all units that I have looked at.

On the power supply I would replace at a minimum:
C14 - 4.7ufd 50v UPW1H4R7MDD
C4 - 1ufd 50v UPW1H010MDD
C8 - 100ufd 25v UHE1E101MED
C10 - 470ufd 16v UHE1C471MPD
C12 - 1000ufd 10v UHE1A102MPD

There are 4 others in the supply that were not grossly bad.
C1 - 22ufd 400v EEU-EE2G220
C7 - 220ufd 25v UHE1E221MPD
C11 - Same as C10
C13 - Same as C10

Logic board:
E5 - 33uf 35v EEU-FM1A471
E6 - Same as E5

Part Numbers of replacement caps are Nichicon or Panasonic.

Note: Caps on the logic board are extremely hard to replace due to the internal ground plane.

Contact me if this is beyond your skills for possible repair.

Posted on Nov 14, 2011

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  • 8 Answers

SOURCE: I have a Channel Master

This is a common problem. There are several capacitors on the power supply and logic board that are bad. Replacement of these parts has restore all units that I have looked at.

On the power supply I would replace at a minimum:
C14 - 4.7ufd 50v UPW1H4R7MDD
C4 - 1ufd 50v UPW1H010MDD
C8 - 100ufd 25v UHE1E101MED
C10 - 470ufd 16v UHE1C471MPD
C12 - 1000ufd 10v UHE1A102MPD

There are 4 others in the supply that were not grossly bad.
C1 - 22ufd 400v EEU-EE2G220
C7 - 220ufd 25v UHE1E221MPD
C11 - Same as C10
C13 - Same as C10

Logic board:
E5 - 33uf 35v EEU-FM1A471
E6 - Same as E5

Part Numbers of replacement caps are Nichicon or Panasonic.

Note: Caps on the logic board are extremely hard to replace due to the internal ground plane.

Contact me if this is beyond your skills for possible repair.

Posted on Nov 14, 2011

  • 8 Answers

SOURCE: I lost all the tv channels on channel master

First look at the indicator lamp on the front left side.
If it is:
off - check the power cord is plugged into a working outlet.
Amber - the unit is in standby, press the on button (left most), it should turn green
Green - the unit is in operate mode, check the antenna and cable connection.
Red - when power is applied, it will be red for up to 30 seconds. If it remains red, the unit is defective. This is a common problem due to several capacitors on the power supply and logic board that have gone bad. The unit is repairable by replacing these capacitors.

Posted on Nov 14, 2011

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1 Answer

How to properly connect the channel Master antenna tuner to my TV so that I can connect an antenna to the tuner. I have the CM-7001. I'm connecting through the HDMI port on the tuner to the HDMI port


Confusing question! The CM-7001 is meant to be used for displays or monitors that have no means of connecting an antenna and don't have a built-in tuner. HDMI to HDMI would be the correct way and make sure you select the proper HDMI port. Or use the other video and audio cable connections.

Sep 03, 2014 | Channel Master CM-7001 ATSC Antenna and...

1 Answer

Channel Master Digital Analog Converter Box CM-7000


E1 is a 100 uF 16 VDC capacitor. I have been repairing these units lately and have experienced some of the same symptoms (LED goes red but doesn't transition to green after 30 seconds like it should). I have been able to repair some of these units. Make sure the power supply is working properly before spending significant time on the D2A board. The power supply is responsible for supplying 12, 5, and 3.3 VDC to the D2A board. A defective PS will measure 14.5 instead of 12, 6 instead of 5, and 2.9 instead of 3.3. The AC ripple should be about 5 mV on the 3.3 and the 5 volt supplies when loaded. The 12 volt can be as high as 50 mV on a good PS. The culprits are C12 (1000uf) and C10 (470 uf) which are the filter capacitors for the 3.3 and 5V outputs respectively. C12, the capacitor for the 3.3 V output is especially critical because it is used to feed the voltage regulator and overvoltage shutdown circuit. D7 is a hot part and can also fail sometimes. I have repaired 50% of my units just by changing these capacitors. I still have units where the D2A board is bad with a known good power supply. If anyone has more info on the D2A (like a schematic) please pass it along

Feb 25, 2012 | Televison & Video

2 Answers

My Channel Master CM-7000 D2A TV Converter box is stuck with Red Light ONLY. Does not respond to any button I press. There is no picture


This is a common problem. There are several capacitors on the power supply and logic board that are bad. Replacement of these parts has restore all units that I have looked at.

On the power supply I would replace at a minimum:
C14 - 4.7ufd 50v UPW1H4R7MDD
C4 - 1ufd 50v UPW1H010MDD
C8 - 100ufd 25v UHE1E101MED
C10 - 470ufd 16v UHE1C471MPD
C12 - 1000ufd 10v UHE1A102MPD

There are 4 others in the supply that were not grossly bad.
C1 - 22ufd 400v EEU-EE2G220
C7 - 220ufd 25v UHE1E221MPD
C11 - Same as C10
C13 - Same as C10

Logic board:
E5 - 33uf 35v EEU-FM1A471
E6 - Same as E5

Part Numbers of replacement caps are Nichicon or Panasonic.

Note: Caps on the logic board are extremely hard to replace due to the internal ground plane.

Contact me if this is beyond your skills for possible repair.

Nov 06, 2011 | Digi Channel Master/tal to Analog...

1 Answer

I have a Channel Master cm-7000. It won't turn on. The red light is on it won't turn on with the remote or by pushing the on button. I tried unpluging it and pluging it back in and all that happens...


This is a common problem. There are several capacitors on the power supply and logic board that are bad. Replacement of these parts has restore all units that I have looked at.

On the power supply I would replace at a minimum:
C14 - 4.7ufd 50v UPW1H4R7MDD
C4 - 1ufd 50v UPW1H010MDD
C8 - 100ufd 25v UHE1E101MED
C10 - 470ufd 16v UHE1C471MPD
C12 - 1000ufd 10v UHE1A102MPD

There are 4 others in the supply that were not grossly bad.
C1 - 22ufd 400v EEU-EE2G220
C7 - 220ufd 25v UHE1E221MPD
C11 - Same as C10
C13 - Same as C10

Logic board:
E5 - 33uf 35v EEU-FM1A471
E6 - Same as E5

Part Numbers of replacement caps are Nichicon or Panasonic.

Note: Caps on the logic board are extremely hard to replace due to the internal ground plane.

Contact me if this is beyond your skills for possible repair.

Sep 07, 2011 | Digi Channel Master/tal to Analog...

1 Answer

I have channel Master 700 by PCT that the red light will not turn to organge then to green.. It stays red, no matter what I do?


This is a common problem. There are several capacitors on the power supply and logic board that are bad. Replacement of these parts has restore all units that I have looked at.
On the power supply I would replace at a minimum:
C14 - 4.7ufd 50v UPW1H4R7MDD
C4 - 1ufd 50v UPW1H010MDD
C8 - 100ufd 25v UHE1E101MED
C10 - 470ufd 16v UHE1C471MPD
C12 - 1000ufd 10v UHE1A102MPD

There are 4 others in the supply that were not grossly bad.
C1 - 22ufd 400v EEU-EE2G220
C7 - 220ufd 25v UHE1E221MPD
C11 - Same as C10
C13 - Same as C10

Logic board:
E5 - 33uf 35v EEU-FM1A471
E6 - Same as E5

Part Numbers of replacement caps are Nichicon or Panasonic.

Note: Caps on the logic board are extremely hard to replace due to the internal ground plane.

Contact me if this is beyond your skills for possible repair.

Apr 25, 2011 | Digi Channel Master/tal to Analog...

1 Answer

My box will only show a red light. I have tried unplugging it to restart but it will only show a red light and is providing no input to the TV. Had been working fine before this.


This is a common problem. There are several capacitors on the power supply and logic board that are bad. Replacement of these parts has restore all units that I have looked at.
On the power supply I would replace at a minimum:
C14 - 4.7ufd 50v UPW1H4R7MDD
C4 - 1ufd 50v UPW1H010MDD
C8 - 100ufd 25v UHE1E101MED
C10 - 470ufd 16v UHE1C471MPD
C12 - 1000ufd 10v UHE1A102MPD

There are 4 others in the supply that were not grossly bad.
C1 - 22ufd 400v EEU-EE2G220
C7 - 220ufd 25v UHE1E221MPD
C11 - Same as C10
C13 - Same as C10

Logic board:
E5 - 33uf 35v EEU-FM1A471
E6 - Same as E5

Part Numbers of replacement caps are Nichicon or Panasonic.

Note: Caps on the logic board are extremely hard to replace due to the internal ground plane.

Contact me if this is beyond your skills for possible repair.

Feb 06, 2011 | Digi Channel Master/tal to Analog...

1 Answer

Red light won't turn to green


This is a common problem. There are several capacitors on the power supply and logic board that are bad. Replacement of these parts has restore all units that I have looked at.

On the power supply I would replace at a minimum:
C14 - 4.7ufd 50v UPW1H4R7MDD
C4 - 1ufd 50v UPW1H010MDD
C8 - 100ufd 25v UHE1E101MED
C10 - 470ufd 16v UHE1C471MPD
C12 - 1000ufd 10v UHE1A102MPD

There are 4 others in the supply that were not grossly bad.
C1 - 22ufd 400v EEU-EE2G220
C7 - 220ufd 25v UHE1E221MPD
C11 - Same as C10
C13 - Same as C10

Logic board:
E5 - 33uf 35v EEU-FM1A471
E6 - Same as E5

Part Numbers of replacement caps are Nichicon or Panasonic.

Note: Caps on the logic board are extremely hard to replace due to the internal ground plane.

Jan 12, 2011 | Digi Channel Master/tal to Analog...

1 Answer

Code for Channel Master CM-7000 Digital TV converter box ? I need code number for Sony TV


If you do the setting up using device codes scan correctly (page 25 in the user guide ) it worked with my sony bravia KDL-32L5000.

Oct 26, 2010 | Channel Master (9537) Remote Control

1 Answer

I lost all the tv channels on channel master cm-7000 model and do not understand how to get them back?


First look at the indicator lamp on the front left side.
If it is:
off - check the power cord is plugged into a working outlet.
Amber - the unit is in standby, press the on button (left most), it should turn green
Green - the unit is in operate mode, check the antenna and cable connection.
Red - when power is applied, it will be red for up to 30 seconds. If it remains red, the unit is defective. This is a common problem due to several capacitors on the power supply and logic board that have gone bad. The unit is repairable by replacing these capacitors.

Jun 05, 2010 | Digi Channel Master/tal to Analog...

2 Answers

My CM7000 has a red light on, and won't boot up


Most likely bad capacitors in the power supply. I have fixed several including my own. See avsforum CECB thread for more info

Mar 30, 2010 | Digi Channel Master/tal to Analog...

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