Kenwood TH-K40A Service Manual page 21

Item Condition
7. Battery 1) BATT terminal voltage: 7.1V
Detection PTT: ON
Check TX Power: Low
(User mode) Battery type: Li-ion
2) BATT terminal voltage: 7.8V
PTT: ON
TX Power: Low
Battery type: Li-ion
• It is not necessary to adjust the fi xed values for the DTMF-DEV, DCS-DEV, CTCSS-DEV, and MIC sensitivity.
• The TX-DEV Narrow setting uses the Wide calculated adjustment level value.
Receiver Section
Item Condition
1. Band Pass 1) Tuning point: Low, Center,
Filter High (3 points)
SSG output: –90dBm (7.08µV)
SSG DEV: 3.0kHz
2. Sensitivity 1) Tuning point: Low, Center,
Check High (3 points)
[Narrow] SSG output: –119dBm (0.25µV)
SSG DEV: 1.5kHz
3. Squelch 1) Tuning point: Low (1 point)
Level 2 Write SSG output: –120dBm (0.22µV)
[Wide] SSG DEV: 3.0kHz
2) Tuning point: Center, High
(2 points)
SSG output: –121dBm (0.2µV)
SSG DEV: 3.0kHz
[Narrow] 3) Tuning point: Low (1 point)
SSG output: –119dBm (0.25µV)
SSG DEV: 1.5kHz
4) Tuning point: Center, High
(2 points)
SSG output: –120dBm (0.22µV)
SSG DEV: 1.5kHz
4. S Meter 1 1) Tuning point: Center (1 point)
Write SSG output: –120dBm (0.22µV)
(RSSI) SSG DEV: 3.0kHz
S Meter 2) Tuning point: Center (1 point)
FULL Write SSG output: –105dBm (1.26µV)
(RSSI) SSG DEV: 3.0kHz
• The Squelch Level 1 setting uses the Squelch Level 2 calculated adjustment level value.
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power TX-RX ANT
meter BATT
terminal
DVM
Measurement
Test-
Unit Terminal Unit
equipment
SSG TX-RX ANT MCP-
DVM SP/MIC 5T
Oscilloscope connector
AF VM
MCP-
5T
MCP-
5T
TH-K40A/K40E
Adjustment
Specifi cations / Remarks
Parts Method
Check Segment display: 4 dots
Segment display: 9 dots
Adjustment
Specifi cations / Remarks
Parts Method
[Automatic Adjust-
ment]
Press [Start] button
of "Auto Tuning".
Press [Apply] button
to store the adjust-
ment value after the
automatic adjust-
ment has fi nished.
Check 12dB SINAD or more
Write
Write S Meter Icon (2 dots)
Write S Meter Icon (9 dots)
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