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- ALR72T
-
- EXTENDED FREQUENCY RX AND TX OF THE ALR72T & ALR72HT
- ALINCO 70 CENTIMETER RADIOS.
-
- BEWARE OF ANY STATIC WHEN WORKING WITH THIS RADIO !!!
-
- 1 Remove the top and bottom covers of the radio.
-
- 2 Remove the 4 screws that hold the front panel assembly to the main
- chassis.
-
- 3 Pull front panel away from the main chassis very gently.
-
- 4 Locate the Volume\Squelch pot on the left side of the radio.
-
- 5 Locate the VFO control on the left side of the radio.
-
- 6 Between the two above units is an IC that runs vertically between
- the two units. (ONLY THE 12 PINS OF THE IC ARE SEEN FROM THE BACK)
-
- 7 After locating the IC locate 3 sets of unsoldered jumper pads between
- the IC pins.
-
- 8 Make a solder bridge between the top 2 pads,then the middle 2 pads,then
- between the bottom 2 ONLY of the bottom set of 3 pads.
-
- REAR VIEW OF FRONT PANEL
-
- / ------\ 12 PIN O * O /---------\
- / VOLUME \ IC -> |<-SOLDER BRIDGE / \
- / CONTROL \ O * O / \
- / \ / VFO \
- \ / O * O \ CONTROL /
- \ / |<-SOLDER BRIDGE \ /
- \-----/ O * O \--------/
-
- O * O
- * DO NOT SOLDER THE TOP PAD
- O |< O OF THESE 3 PADS
- * \SOLDER BRIDGE HERE
-
- 9 RE-ASSEMBLE RADIO .
-
- 10 RESET MICROPROCESSOR.
-
-
-
- GOOD LUCK AND HAPPY MODING 73 CARL VE3ZCO@VE3GYQ
- CARL@HAMSTER.UWO.BUSINESS.CA.NA [129.100.22.100]
- CARL VE3ZCO [44.135.80.8]