Highfields Amateur Radio Club
Repair Assistance & Modifications.

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In this area will be hints, tips and major assistance articles for the repair or modification of various pieces of equipment. If you think that a radio or other piece of equipment that you have that needs repair is beyond your capabilities then take a look at the Radio Repairers Links page.

If you have any hints, tips, mods etc. that you wish to share or any links to articles you've written yourself or found helpful in your task to get that "piece of junk" (XYLs term, not mine!) working again then please send them to: webmaster@highfields-arc.co.uk

You can also use this address to request user or service documents that I may have for the equipment concerned.

PLEASE NOTE:

• Modification of equipment may void any warranty.
• Modifications shown here may allow the use of the equipment on frequencies that your licence does not cover.
• The Highfields Amateur Radio Club, the Webmaster and the Original Author of any modification cannot be held responsible for loss, damage, improper use etc.

UPDATED Content AnyTone AT-5555 Repairs & Modifications Various mods, dat files etc.	Radio Wiring Pin Outs & Microphone Wire Colours. (in Contructors Corner).	De-coding Glass Fuses. Equipment Fuse markings and Coloured spots and bands de-coded. (in Contructors Corner).
Icom IC-AT100 / AT500 AC/DC Power Connection. (in Contructors Corner).	Icom IC-251/ 351/ 451/ 551 AC/DC Power Connection. (in Contructors Corner).	Icom IC-735 Optical Encoder Repair. When the tuning goes awry! Article (and downloadable PDF).
Icom IC-756 PRO Damaged PCB Repair. External page by Jose, EB5AGV.	Kenwood TS-850S Various Repairs. External page by Jose, EB5AGV.	UPDATED Kenwood / Trio MC-60A Microphone Repairs. RFI problem, broken yoke & battery tray.
Kenwood / Trio R-600 Repair. No display, No tuning.	Let's Fix It (.co.uk). General DIY repair & Hints & Tips website. Including: appliance repair, plumbing and central heating.	Re-celling Alinco EBP20N Battery Pack. Tired rechargeables replaced.
Re-celling Remington Hair Clippers. Tired rechargeables replaced.	Re-celling Uniden Scanner Battery Pack. Tired rechargeables replaced.	Stereo Headphones Plug / Wiring Plug come adrift? Let's replace it!
Tag Board Problem (could also affect circuit boards).	Transistor Equivalents (1964) (in Contructors Corner).	Transistor (& more) Equivalents (on NTE Electronics site).
Valve Equivalents (1948) (in Contructors Corner).	Valve Equivalents (1958) (in Contructors Corner).	Yaesu FT-847 Power switch replacement and modification.