Kenwood TK-250 Service Manual page 10

TK-250
REALIGNMENT
4. Test mode
In the test mode, the dealer initializes E2PROM data, and tun-
ing the trsansceiver and sets functions and channel data.
• Procedure
1) Press LAMP, DIA together and turn power on. Hold LAMP
and DIA until " SEL " appears on LCD.
Test mode display
tl·,'j'
,~t/-'1
,iT;;
-- )fiX!
/fj /f}
ij
& :.':
0" 0 0' ..........• 0
2) If the [LAMP] key is held down and the [LO] key pressec
when SEL is displayed, E2PROM data (except destinatior
data) is initialized. When the [LO] key is pressed, the tunin~
mode is entered. When the [TA] key is pressed, the sel
programmnig mOde(function-setting mode) is entered
When the [DIA] key is pressed, the self programmin~
mode(channel-setting mode) is entered.
I ---------,
I I
I I
I I
I I
I I
: Self programmnig mode :
•...- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _I
10
[LAMP]
[LO]
4-1 Self programming mode (Clear function)
The clear function initializes the memory before the dealer
sets functions and channels. The memory is not initial-
ized at the factory. If the [LAMP] key is held down and
the [LO] key pressed in the test mode, the rnemory is
initialized(then display indicate CLR while it is being
cleared), and the test mode returns.
4-2 Self programming mode(Channel-setting mode)
In the self programming mode(channel-setting mode), the
receive frequency, receive signaling, transmit frequency,
and transmit signaling for each channel are set.
NOTE:
Self program ming mode is function for 32ch model.
When entered Self programming mode, channel setting
has been 32ch. To 160ch version , set on for using FPU.
1) Receive frequency setting mode
If there is no data stored in the E2PROM , " - - - - - " is
displayed. If the [LO] key is pressed, the initial frequency
is displayed. If there is data stored in the E2PROM, the
frequency is displayed.
If the [TA] key is pressed, the step changes between 5
kHz and 6.25kHz. (Initial value : 6.25kHz)
If the channel selector is turned, the frequency changes
in steps. If the [LAMP] key is held down and the channel
selector turned, the 1MHz digit is incremented or decre-
ment. If the [PTT] key is pressed, the display frequency
is written into the E2PROM, and the receive signaling setting
mode is entered.
2) Receive signalling setting mode
If there is no data stored in the E2PROM , " - - - " is
displayed. If the [LO] key is pressed, the initialOT value
of " 67.0 " is displayed. If the [LO] key is pressed again,
the inital DOT value of " 023N " is displayed. If there is
data stored in the E2PROM, the signalling is displayed.
Test mode
[DIA]
[TA]
Test mode
[DIA]
Channel setting
[PTT]
1. Receive trequency setting
[PTT]
2. Receive signalling setting
[PTT]
3. Transmit trequency setting
IPTT]
4. Transmit signalling setting
[PTT]
5. SCAN Deletel Add tor each channel
[PTT]
6. Busy channellockout
[PTT]
7. RF power
[PTT]
8. Beat shift
[PTT]
[DIA]