HYT TM-600 Service Manual page 73

Transmitter
Item Condition
Not enter tuning
4. TX
item,but switch to
Frequency
4CH
Each CH corresponds
to a specific TX freq;
5. TX Power enter the item " 0" , ' 1"
in turn, to tune
High/Low power.
1. Each CH
corresponds to a
specific TX freq; enter
6. Max.
the item " 2"and tune
Deviation
" 0." , " 1." , " 2." , " 3." , " 4." ,
" 5." , " and 6."
7. Modulation
Sensitivity
1. Each CH
corresponds to a
specific TX freq.
8. Modulation
Distortion
Each CH corresponds
9. CDCSS
to a specific TX freq;
Balance
enter item " 3"
Each CH corresponds
to a specific TX freq;
enter item " 4" , " 5"and
10. CTCSS
" 6" . Tune
Deviation
67Hz/151.4Hz/254.1H
zCTCSS
Measurement
Test Instrument Terminal
Radio
Communication ANT
Test Set
Radio
Communication
ANT
Test Set
Ammeter
Radio
Communication
Test Set ANT
Filter: MIC Jack
0.05-15KHz
AF:1KHz 75mV
Radio
Communication
Test Set
ANT
Filter:
MIC Jack
0.05-15KHz
AF: 1KHz
7.5mV
Radio
Communication
Test Set ANT
Filter
LPF: 300Hz
Radio
Communication
Test Set ANT
Filter
LPF: 300Hz
72
TM-600 SERVICE MANUAL
Tuning
Part Method
Tune channel
Tune VR801
frequency
Tune software High Power:
setting & PO=23 to 25W
VR101; press
[P2] to save the
Low Power:
setting and
PO=5± 0.5W
move to the
next item.
Check the deviation of
Hi/Mid/Low channel:
4.0± 0.1KHz(W)
Tune software
setting; press
Check the deviation of
[P2] to save the
Hi/Mid/Low channel:
setting and
3.2± 0.1KHz(M)
move to the
Check the deviation of
next item.
Hi/Mid/Low channel:
1. 9± 0.1KHz (N)
Check deviation:
2.6KHz-3.4KHz (W)
2.2KHz-2.7KHz (M)
1.3KHz-1.7KHz (N)
Use [▲ ] , [▼ ]
key to set
CDCSS
Tune deviation to
Use [▲ ],[▼ ]
0.75KHz± 0.10KHz (W)
key to set
0.60KHz± 0.10KHz (M)
CDCSS
0.37KHz± 0.05KHz (N)
Specification/
Remarks
Error<50Hz
Check High
Power
I≤8.0A
Check Low
Power
I≤5.0A
Check
≤5%
Check
waveform