Kenwood TK-790 Service Manual page 71

Item Condition
• Med power 1) CH-SIG : 1-1
model Select _POW_XXX
(High power) in tune mode
PTT : ON
(Low power) 1) CH-SIG : 1-1
Select LPOW_XXX
in tune mode
PTT : ON
9. Maximum 1) Select _ _L
deviation MXDV_XXX
• Wide in tune mode
PTT : ON
Deviation meter filter
HPF : OFF
LPF : 15kHz
De-emphasis : OFF
AG : 1kHz/50mV
2) Select _ _C
MXDV_XXX
in tune mode
PTT : ON
3) Select _ _H
MXDV_XXX
in tune mode
PTT : ON
• Narrow 1) Up/down knob : Set the narrow
n_L
MXDV_XXX in tune mode
PTT : ON
2) Select n_C
MXDV_XXX
in tune mode
PTT : ON
3) Select n_H
MXDV_XXX
in tune mode
PTT : ON
10. MIC 1) CH-SIG : 1-1
sensitivity PTT : ON
Wide only Deviation meter filter
HPF : OFF
LPF : 15kHz
De-emphasis : OFF
AG : 1kHz/5mV
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power meter Rear ANT TX-RX VR1
Ammeter (C/3)
Panel
Power meter Rear ANT Panel
Deviation
meter
AF VTVM Panel MIC
AG
Oscilloscope
TX-RX VR501 Check
(B/3)
TK-790/
Adjustment
Parts Method
Maximum clockwise 47W or less
45W adj. 45W±1W, 12A or less
PF3 key Check 45W±1W
PF4 key
5W adj. 5W±1W
PF3 key Wide ±4.1kHz ± 0.1kHz
PF4 key
Narrow ±2.05kHz ± 0.05kHz
2.75~3.25kHz
( B ) /H ( B )
Specifications/Remarks
71