Kenwood TK-80, Service Manual

Page: 51 / 125

TK-80
50
Item Condition
Measurement Adjustment
Specifications/Remarks
Test-
equipment
Unit
Terminal
Parts Unit Method
ADJUSTMENT
3. IF AMP 1) M CH: 08 SSG Rear ANT TX-RX L44 Repeat adjustment
adjustment [DATA]: 1 push panel L48 2 to 3 times.
[MODE]: 1 push AF V.M EXT.SP L49 AF output: MAX
Mode: USB Oscilloscope L51
SSG f.: 14.151MHz DM. SP L75
SSG OUT: –113~–119dBm L76
(0.501~0.25
µ
V)
4. MIX BAL 1) M CH: 09 VR1 Noise minimum
adjustment AIP: OFF
SSG OUT: OFF
5. IF GAIN 1) M CH: 10 Front AF VOL AF output: 0.63V
adjustment SSG f.: 14.150MHz panel
SSG OUT: –103dBm (1.58 µ V)
2) SSG OUT: –113dBm (0.501 µ V) TX-RX VR4 AF output: 0.4V ± 0.05V
3) SSG OUT: –103dBm (1.58
µ
V) Check 0.63V
±
0.05V
6. S-meter 1) Power ON while holding the Front [MODE] 1 push
adjustment [SCAN] and [DATA] keys. panel or
S1 (Service adjustment mode) [DATA]
Menu No.: 29
SSG f.: 14.101MHz
SSG OUT: –107dBm (1
µ V)
S9 2) Menu No.: 30
SSG OUT: –81dBm (19.9 µ V)
Full scale 3) Menu No.: 31
SSG OUT: –41dBm (1.99mV)
7. SQL 1) Menu No.: 32 1 push
threshold SSG OUT: OFF
adjustment SQL VR: Center
8. SQL VR 1) Menu No.: 33 1 push
adjustment SSG OUT: OFF
SQL VR: Center
9. CLARI VR 1) Menu No.: 34 1 push
adjustment SSG OUT: OFF
CRARI VR: Center
10. Beep sound 1) Menu No.: 37 TX-RX VR9 0.25V ± 6dB
adjustment
11. Sidetone 1) Menu No.: 38 VR10 0.2V ± 6dB
adjustment
12. ROM data 1) Turn the [DIAL] to select Menu No. 39. Display (READY) → Press [MODE] or [DATA] → Write → Finish (GOOD)
writing
13. NB check 1) Press [MENU] key one time, Noise Check Noise decreases
set to the menu number “02” generator
by pressing [DATA] or [MODE] D.V.M
key, and NB is ON for turning
the [DIAL].
Adjust the noise generator to
S1, S9 level, then check.
After the check, press the
[MENU] key one time.