Kenwood TK-7185 Service Manual Addendum page 23

Receiver Section
Item Condition
1. Sensitivity 1) Adj item: [SENS1]
adjust Adjust: [✳✳✳]
2) Adj item: [L SENS1] →
[L' SENS1] → [C SENS1] →
[H' SENS1] → [H SENS1]
Adjust: [✳✳✳]
2. Sensitivity [Panel test mode]
check 1) CH-Sig: 1-1
SSG output
Wide: –117dBm (0.32µV)
(MOD: 1kHz/±3kHz)
Narrow: –116dBm (0.35µV)
(MOD: 1kHz/±1.5kHz)
3. Squelch 1) Adj item: [n SQL]
(Preset) Adjust: [✳✳✳]
adjust SSG output: 12dB SINAD level
• Narrow (MOD: 1kHz/±1.5kHz)
2) Adj item: [nL SQL] →
[nC SQL] → [nH SQL]
Adjust: [✳✳✳]
• Wide 3) Adj item: [w SQL]
Adjust: [✳✳✳]
SSG output: 12dB SINAD level
(MOD: 1kHz/±3.0kHz)
4) Adj item: [wL SQL] →
[wC SQL] → [wH SQL]
Adjust: [✳✳✳]
4. Low RSSI 1) Adj item: [n LRSSI]
adjust Adjust: [✳✳✳]
• Narrow SSG output: 12dB SINAD level
(MOD: 1kHz/±1.5kHz)
2) Adj item: [nL LRSSI] →
[nC LRSSI] → [nH LRSSI]
Adjust: [✳✳✳]
• Wide 3) Adj item: [w LRSSI]
Adjust: [✳✳✳]
SSG output: 12dB SINAD level
(MOD: 1kHz/±3.0kHz)
4) Adj item: [wL LRSSI] →
[wC LRSSI] → [wH LRSSI]
Adjust: [✳✳✳]
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
SSG Rear ANT Front
panel panel
AF VTVM EXT. SP
Oscilloscope
TK-7185
Adjustment
Parts Method
[ ],[ ] Enter the following Note: After replacing the EE-
adjustment values PROM (IC401) align sensitiv-
to the transceiver by ity.
pressing [ ] and
[ ] keys.
[L SENS1]: 135
[L' SENS1]: 155
[C SENS1]: 175
[H' SENS1]: 200
[H SENS1]: 240
After setting the
adjustment value,
press [B] key.
The adjustment
value will be stored
in memory.
Check 12dB SINAD or more
After input signal After adjusting SQL, check
from SSG, press [B] SQL open/close.
key. That numeric SSG 12dB SINAD level + 4dB
will be stored in : Open
memory. SSG 12dB SINAD level – 6dB
: Close
[nC SQL] MOD 1kHz/±1.5kHz
[wC SQL] MOD 1kHz/±3.0kHz
After input signal The following erroneous
from SSG, press [B] performance may occur if any
key. That numeric irregular RSSI adjustment,
will be stored in such as pressing the [B] key
memory. assigned for determination
when it is the ANT OPEN
state, is performed.
• The antenna bar ( ) cannot
• Scan does not stop.
Specifi cations / Remarks
appear correctly.
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