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                             K E N W O O D
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                        Kenwood Service Centers

   Kenwood Service Corporation             Kenwood Service Center, East
   2201 East Dominguez Street              829 Lynnhaven Parkway, Suite 130
   Long Beach, California 90801            Virginia Beach, Virginia 23452
   Telephone 1-310-639-5300                Telephone 1-804-340-1702

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BULLETIN # 967
MODEL: tm-701a
SUBJECT: INTERMITTENT MEMORY LOSS

Some TM-701A owners have reported that the transceiver intermittently 
loses its memory channel information at power on. The following modification 
will absorb pulses on the CPU interrupt line (INT4) and reconfigure the 
backup switching circuit to avoid unintentional memory loss.

This modification should be performed on a Dealer level as they have the 
correct tools to disassemble the transceiver.

REQUIRED PARTS:

220uF, 6.3V ELECTROLYTIC CAPACITOR			CE04NW0J221M
0.01uF CERAMIC CAPACITOR				CK45B1H103K
0.022uF CERAMIC CAPACITOR				C90-0475-05
2.2K OHM CHIP RESISTOR					RK73FB2A222J
1K OHM CARBON RESISTOR					RD14BB2C102J
3.0V ZENER DIODE					MTZ3.0JB

1. Disconnect the power supply, antenna, and microphone.

2. Remove the top and bottom covers (12 screws). Disconnect the speaker 
   plug when the top cover is removed.

3. Remove the knobs from the front panel.

4. Remove the nut from the microphone jack and the 11mm nut from the 
   channel selector switch.

5. Remove the 4 screws that secure the front panel to the body of the 
   transceiver.

6. Pull the front panel off the transceiver to expose the Control board.

7. Remove the 3 screws from the Control board. Gently pull the board off 
   the transceiver.

8. Perform the changes shown in the accompany diagram. C202 is on the 
   component side of the Control board. All other work will be done on 
   the foil side of the board.

Time required to perform the modification is 1hr. or less.