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Manual dla

KENWOOD TM-701A

KENWOOD TM-701E


SQ9MLI

[Medyk]

Kenwood TM-701 MODS
Extended RX / TX on KENWOOD TM-701

The Kenwood TM-701 A is capable of transmitting and receiving from 136-175 MHz. and from 340-512 MHz. when the following mods.

Cut the GREEN jumper wire on the Control PC Board behind the front panel.
The control PCB # is X57-3350-00. Add Diode D207 and D 209 (1ss181 or equiv) a 1n914 should work fine. Anode goes to the switches and the cathode to the IC (IC201).

2. Reset the microprocessor by holding in the "MR" key as the power is turned on.

to access the Control PCB:
remove top bottom covers.
remove knobs pulling them straight off of the front panel.
Remove plastic faceplate.
remove 4 screws on front panel metal spacer and remove panel.
remove plastic panel/LCD by pulling straight off of the rig toward front.
remove the 3 screws from the Control PCB and pull straight off of the chassis.
Diodes mount on the back of the PCB at S205 and S209. The Andoe goes toward the switches and the cathode goes away from the switches.
D209 goes to S205 (TONE switch)
D207 goes to S209 (MR switch)
D208 goes to S204 CAUTION remove D208 only if you want to change the split from +- 5 Mc to +- 1.6 and - y6 Mc (european split).
replace all parts in reverse order. There is no RF circuit adjustments needed for this mod.
If there are any questions please call me at N4LDG PBBS Miami or write me at 11102 S.W. 117 Street Miami, Fl 33176 Hope you can now enjoy a nice rig!
John KA4ZAY Miami

73

SQ9MLI