Kenwood TK-90, Руководство по обслуживанию

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TK-90
78
Item Condition
Measurement Adjustment
Specifications/Remarks
Test-
equipment
Unit Terminal Parts Unit Method
ADJUSTMENT
3. IF gain 1) Menu No. : 2 SSG Rear ANT [ ] or Check the adjust-
(13.2MHz, USB) panel [ ] ment value (A)
SSG f. : 13.201MHz Oscilloscope EXT.SP displayed on the left
SSG output : OFF AF V.M side of the display.
DM. SP
2) SSG output : –107dBm (1.0
µ
V) Change the adjust-
ment value (B)
displayed on the
right side of the
display by pressing
the [
] or [ ]
keys so that adjust-
ment value (A)
increace by 5 (A+5).
4. S/N 1) Display f. : 550kHz SSG Rear ANT
• 550kHz Mode : AM panel
PRE-AMP : ON Oscilloscope EXT.SP
*AF output : 0.45V/4
Ω
(LV7) AF V.M
SSG f. : 550kHz Distortion
SSG output : –79dBm (25
µ
V) meter
MOD : 1kHz, 60% DM. SP
Audio
2) MOD : OFF analyzer Check –10dB or less
• 13.2MHz 3) Display f. : 14.200MHz
Mode : DATA
PRE-AMP : ON
*AF output : 0.45V/4
Ω
(LV7)
SSG f. : 13.201MHz
SSG output : –121dBm (0.2
µ
V)
4) SSG output : OFF Check –10dB or less
• PRE-AMP 5) Display f. : 13.200MHz Set SINAD at 0dB.
gain Mode : DATA
PRE-AMP : ON
*AF output : 0.45V/4
Ω
(LV7)
SSG f. : 13.201MHz
SSG output : –118dBm (0.28
µ
V)
6) PRE-AMP : OFF Check –(5~15)dB
• RF ATT 7) Display f. : 13.200MHz AF level = A
Mode : DATA
ATT : OFF
*AF output : 0.2V/4
Ω
SSG f. : 13.201MHz
SSG output : –116dBm (0.35
µ
V)
8) ATT : ON Check for AF level A
±
2dB
SSG output : –96dBm (3.54
µ
V)
*: When the volume cannot be decreased, verify the value set for “Minimum Volume”.
When “Minimum Volume Type” is set to “Lowest Limit” in the FPU, the volume cannot be decreased lower than the value set for the “Minimum Volume”.
M 2
I F G : 0 4 8 0 3 3
A
M 2
I F G : 0 5 3 0 3 3
A+5 B