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Enable TV reception for ICOM IC-7000

 

 
 

Contact author: Duke - NA1A

 

 

 

 

1.

 

Remove CPU/DSP unit by unscrewing three silver screws holding it down (the silver 

box on the top of the radio with copper taped sides) and pull up. 

2.

 

Locate four shift registers and bank of diodes - shift registers are 4094's. There are 
two next to each other and then a couple more. We'll call the two stacked the "left" 
ones 

3.

 

The "middle" shift register if looking from the front of the radio is the target. 

4.

 

Locate bank of SMT diodes (silver with "K" on top on one side) in front of the target 
shift register. They are in two columns, "left" and "right" 

5.

 

Unsolder one side of the second diode from the front on the left and lift up one side 
(or remove, slip to the side, whatever turns you on) 

 

Thanks to Luma for this piucture. 

 

  

   

 

 

 

Summary of Contents for IC-7000

Page 1: ...5 on the scale 4 bars First remove the top cover and remove the fan from the radio take a 100ohm resistor and solder a length of wire to each end and cover with heat shrink tubing Cut the red wire to...

Page 2: ...There are two next to each other and then a couple more We ll call the two stacked the left ones 3 The middle shift register if looking from the front of the radio is the target 4 Locate bank of SMT d...

Page 3: ...D2154 The solder pads are in the shape of half circles connected by a thin printed trace The thin pc trace can be easily cut with an exacto type knife If present this method eliminates unsoldering th...

Page 4: ...There are two next to each other and then a couple more We ll call the two stacked the left ones 3 The middle shift register if looking from the front of the radio is the target 4 Locate bank of SMT d...

Page 5: ...thout any additional modifications Forgot to mention when you goto solder the lead to the red wire of the fan please place a rag or something undeneath the area you will be working in its pretty tight...

Page 6: ...o vary the speed of the fan 3 Strip the insulation of the red wire to the fan back just enough to make a solder connection to the 100ohm resistor 100ohm pot We used a lighter to burn away a bit of the...

Page 7: ...w to do Remove the top cover of the radio and unplug the speaker Remove the spring clip of the audio Power Amplifier IC2602 see picture Remove the CPU Logic unit Silver box Remove the DDS unit B6294L...

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Page 10: ...PDF version http www qsl net va3iul Files IC7000_audio_noise pdf Downloaded from mods dk Good luck 73 s Iulian Rosu YO3DAC VA3IUL http www qsl net va3iul...

Page 11: ...ot have the DSP TX equalizer that I feel should have been implemented The IC 7000 is an excellent radio on transmit but with the HM 151 it s a bit to bassy and it sounds to muffled This can be improve...

Page 12: ...microphone I know of This is why it will allow a lot of bass to pass through and this is why it will sound bassy compared to other icom hand mics First you must get your hands on the replacement capac...

Page 13: ...or both Ragchew and DX Only use COMP if necessary Note If your IC 7000 has been modified internally microphone preamp you will probably not notice any difference with this modification This is the cas...

Page 14: ...plug to the REMOTE jack on the rear panel While pushing and holding P AMP ATT and TUNE CALL turn the transceiver power ON Enter TX adjustment mode Push F 2 TX CAUTION Connect a dummy load to the anten...

Page 15: ...move the CPU Logic unit Silver box 3 Remove the DDS unit 4 Remove all coaxial plugs and ribbon cables from the board Be extremely careful when removing the two ribbon cables at the front of the radio...

Page 16: ...Label on IC 7000 box 8 Export model Remove the CPU Logic unit Step 1...

Page 17: ...Unclip the spring clip situated at the back mid right hand side of the radio Step 2...

Page 18: ...Remove the DDR unit first then the main board Step 3 Very carefully unplug ribbon cables Don t pull on them Step 4...

Page 19: ...Original 5 5 MHz SMD ceramic filters Step 5 New 6 MHz Ceramic Trap Filters Step 6...

Page 20: ...r on the blue screen Press Yes that you acknowledge the warning The radio reverts to the original frequency you had the radio on before embarking on the modification To activate the TV receiver push a...

Page 21: ...urface device soldering station OM Eddie Leu ZL3TEL for his assistance and photos of the New Zealand expanded frequency range OM Paul Hayden VK4ZBV for information on the Australian and South African...

Page 22: ...n left and up right and remove the module The diode matrix is visible with D2168 D2169 D2170 en D2172 in place Remove all diodes 3 except D2170 D2168 D2169 D2170 D2171 D2172 1 NO NO NO NO NO 1 6 25 99...

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Page 25: ...existed METHOD 1 Remove the top cover of the radio and unclip the speaker plug 2 Remove the CPU Logic unit Silver box 3 Remove the DDS unit 4 Remove all coaxial plugs and ribbon cables from the board...

Page 26: ...into the Main board before fitting the Main board to the chassis 11 Replace all screws and tighten 12 Plug in all the cables re fit the CPU Logic unit etc 13 Replace the top cover Don t forget to plug...

Page 27: ...Remove the CPU Logic unit Step 1...

Page 28: ...Unclip the spring clip situated at the back mid right hand side of the radio Step 2...

Page 29: ...Remove the DDR unit first then the main board Step 3...

Page 30: ...Very carefully unplug ribbon cables Don t pull on them Step 4 Original 5 5 MHz SMD ceramic filters Step 5...

Page 31: ...New 6 MHz Ceramic Trap Filters Step 6 Original Diode Positions Step 7...

Page 32: ...front looking towards the back When you switch the power on a warning message will appear on the blue screen Press Yes that you acknowledge the warning The radio reverts to the original frequency you...

Page 33: ...the bottom of the screen You should now see a picture You can now fine tune the picture by rotating the VFO knob Once everything is tuned perfectly press the volume control set button to store the sta...

Page 34: ...who have purchased the American model I am working on a modification to change the NTSC system to PAL It involves changing a number of parts on the main board It won t be difficult but procuring the...

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