Kenwood TK-250 Service Manual page 13

TK-250
REALIGNMENT
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6. PC mode
• Preface
The TK-250 transceiver is programmed by using a personal
computer, programming interface (KPG-22) and program-
ming software (KPG-23D).
The programming software can be used with an IBM PC or
compatible. Figure 1 shows the setup of an IBM PC for pro-
gramming.
• Connenction procedure
CD
Connect the TK-250 to the personal computer with the in-
terface cable.
IBM- PC
Fig. 1
• KPG-22 description
(P.C. programming interface cable: Option)
The KPG-22 is required to interface the TK-250 to the com-
puter. It has a circuit in its D-subconnector (25-pin) case that
converts the RS-232C logic level to the TTL level.
The KPG-22 connects the side panel jacks of the TK-250 to
the computers RS-232C serial port.
• Program ming
software description
The KPG-23D Programming Disk is supplied in 5-1/4" and
3-1/2" disk format. The Software on th is disk allows a user
to program TK-250 radios via Programming Interface cable
(KPG-22).
cv Hold down the [LAMP] and [LO] keys, and turn the POWER
switch on. (Hold down the [LAMP] key for at least two sec-
onds.) When the PC rnode in entered, "-PC-" is displayed
on the LCD.
When data transmitting from transceiver the red LED goes
on.
Wh en data receiving to transceiver the green LED goes on.
Notes:
• Do not connect the interface cable in the normal receive
mode .
• The data stored in the personal computer must match VHF,
UHF, and IF when it is written into the E2PROM.
• Do not press the [PTT] key during data transmission or
reception .
• Change the TK-250 to PC mode. then plug in.
• Programming with IBM PC
If data is transferred to the transceiver from an IBM PC with
the KPG-23D, the destination data (basic radio information)
for each set can be modified. Normally, it is not necessary to
modify the destination data because their values are deter-
mined automatically when the frequency range (frequency
type) is set.
The values should be modified only if necessary .
Data can be programmed into the E2PROM in RS-232C for-
mat via the SP MIC plug.
In this mode the PTT and CLN lines operate as TXD and
RXD data lines respectively.
( KPG-23D Instruction Manual )
Parts No: B62-0476-08
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