hpr4232 :: Replacing backup batteries in my Kenwood TS940S HF Radio Part 6
Part 6 is the final episode it deals with fitting the new replacement PLL backup battery.
Hosted by MrX on 2024-10-22 is flagged as Explicit and is released under a CC-BY-SA license.
Amateur, Radio, DIY, repair, electronics, soldering.
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The show is available on the Internet Archive at: https://archive.org/details/hpr4232
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Duration: 00:22:13
HAM radio.
A series about all things Amateur Radio/HAM Radio.
Picture 1
Shows me attaching the leg of a resistor to the new backup battery. This
is to extend the battery terminal length so that it can be soldered
between the two connecting battery posts of the radio Printed Circuit
Board.
Picture 2
Shows the newly fitted PLL backup battery with it’s extended terminal
fitted directly below the EPROM labelled JAF7.
Picture 3
Shows the speaker sitting within a metal box. This box sits on top of
the screened metal box housing the PLL backup battery. When I was
refitting the speaker box I discovered there were extra badly soldered
grey wires attached to the speaker terminals. The other end of the wires
was covered with black electrical insulating tape. I removed these extra
grey wires from the speaker to prevent them from coming adrift and or
causing a short circuit within the radio.
I mention the trick of using blue-tak to hold a difficult screw when inserting it into a tight recess. Wikipedia article about Blu Tack