Subject: DJ500 Mod THIS MOD IS FOR THE ALINCO DJ-500T, IF YOU HAVE LITTLE OR NO SOLDERING EXPERIENCE DO NOT
!!! REPEAT DO NOT TRY THIS MOD ON YOUR RADIO IT IS NECESSARY TO REMOVE A CHIP RESISTOR FROM THE CPU BOARD.
TOOLS YOU WILL NEED:# 0 PHILLIPS SCREWDRIVER 25 WATT SOLDERING PENCIL, EXACTO KNIFE I RECEIVED A SCHEMATIC
AND BOARD LAYOUT FROM ALINCO FREE PHONE 1-213-618-8616 1 REMOVE THE BATTERY PACK 2 REMOVE 3 SCREWS FROM
THE BACK OF THE RADIO 3 REMOVE 2 SCREWS FROM THE BOTTOM (FRONT PANEL SIDE) 4 SPLIT THE CASE CAREFULLY 5.
PUT THE RADIO FACE DOWN ON THE TABLE WITH THE TOP AWAY FROM YOU THE SPEAKER AT THE BOTTOM 6 FIND THE "D"
SHAPED GOLD PADS UNDER THE SPEAKER ON THE RIGHT SIDE OF BOARD 7 THE CHIP RESISTOR IS TWO PADS UP FROM THE
"D" SHAPED ONES THE NEXT STEPS CAN CAUSE GREAT ILLNESS TO THE RADIO !!!!! 8 VERY CAREFULLY HEAT ONE END OF
THE CHIP AND PRY WITH KNIFE 9 THEN HEAT THE OTHER END AND REPEAT UNTIL RESISTOR IS OFF THE BOARD 10 HOLD
THE BATTERY PACK IN CONTACT WITH BOTTOM OF RADIO, TURN ON RADIO, PRESS THE RESET BUTTON WITH TOOTHPICK (HOLE
UNDER PTT SWITCH) 11 CHECK THAT YOU HAVE THE NEW FREQUENCIES THEN REASSEMBLE THE RADIO YOU CAN NOW PROGRAM
130.00 MHz TO 169.995 MHz 340.00 MHZ TO 379.995 MHz 420.00 MHz TO 469.995 MHz 870.00 MHz TO 899.995 MHz
WARNING !!!!!!! TRANSMITTING OUT OF THE HAM BANDS IS ILLEGAL !!!!!!! SINCE YOU HAVE THE SOLDERING IRON HOT
YOU CAN BUILD A NICE ACCESSORY REMOTE MICROPHONE AND SPEAKER TO MAKE A CABLE YOU HAVE TO BUY:1/8" STEREO
PLUG "RS #274-284" 1/8" TO 3/32" STEREO ADAPTER "RS # 274-373" 10 K OHM 1/4 WATT RESISTOR "RS # 271-1335" 10
MICROFARAD 35 VOLT CAP "RS # 272-1013" MATE PLUG FOR YOUR SPARE MICROPHONE PLASTIC MINI BOX I MADE ONE WITH
A 8 PIN STANDARD MIC PLUG SO I CAN USE MY SPARE HAND MIC IN THE CAR WITH A 6" SPEAKER SPEAKER MIC
CONNECTIONS:SHELL GROUND TIP REC AUDIO RING PTT & AUDIO IN CONNECT SHIELD, PTT COMMON AND SPEAKER COMMON TO
THE SHELL CONNECT SPEAKER PLUS TO THE TIP CONNECT A 10K OHM RESISTOR AND 10 MICROFARAD CAP TO THE RING.
CONNECT THE PTT SWITCH BETWEEN THE SHELL AND THE 10K RESISTOR CONNECT THE MIC PLUS TO THE 10 MICROFARAD CAP.
NOW YOU CAN USE A REAL SPEAKER AND REAL MICROPHONE THAT WILL ALSO WORK FOR PACKET BUT USE A .1 MICROFARAD
CAP NOT 10 MF... |_____| SHELL | | | | ring V tip WELL THATS ALL FOLKS........ 73'S FROM BRYAN (N2KZH)
---------------------------- Note:I haven't tried or verified this, proceed at your own risk WA2ISE ------------------------------
Source QRZ: The Windows Ham Radio CDROM |
