How To Change The Channel; Adjustment; Adjustment Standard (Handset) - Panasonic KX-TC2106UAB Service Manual

8.2.

How to change the channel

8.3.

Adjustment

Adjustment Items Test Mode
(A) Battery Low 3ch Talk
Confirmation
(B) TX VCO 3ch Talk
Adjustment
(C) RX VCO 3ch Talk
Adjustment
(D) TX Frequency 3ch Talk
Confirmation
(E) TX Power 3ch Talk
Adjustment
(F) RX Sensitivity 3ch Talk
Confirmation
(2nd IF output)
(G) Noise Squelch 3ch Talk
Confirmation
(H) Speaker 3ch Talk
Output Level
Confirmation
(I) Mic Modulation 3ch Talk
Factor
Confirmation
(J) Data 3ch Talk
Modulation
Confirmation
*: The connections of adjustment equipment are as shown in Adjustment Standard (Handset) (P.24).
S.S.G. Frequency: 30.175 MHz
Adjustment
Point
- 1. Adjust the power supply voltage to DC 3.60V and confirm so that the
reading of oscilloscope is High.
2. Adjust that power supply voltage to DC 3.40V and confirm so that the
reading of oscilloscope is Low.
• • • • Adjust T803 so that the reading of the Digital Voltmeter is 1.5 ± 0.3 V.
T803
• • • • Adjust T804 so that the reading of the Digital Voltmeter is 1.0 ± 0.3 V.
T804
• • • • Confirm so that the reading of the frequency counter is 39.875MHz ±
-
700Hz.
• • • • Adjust T802 so that the reading of the RF VTVM is more than 5dBm.
T802
T801 1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev.
0KHz).
2. Confirm 2nd IF output so that the reading of AF VTVM is the maximum
value (more than 20mV).
- 1. Measure the S.S.G. output level when the noise squelch changes from
Low to High. (modulation frequency 1KHz, dev.3KHz)
2. Confirm that the S.S.G. output level is -113dBm ~ -118dBm.
- 1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev.
3KHz).
2. Confirm that the reading of AF VTVM is more than 30mV.
(Distortion:less than 7%) (volume High)
- 1. Apply a MIC signal (1KHz, 4mV at 600Ω load).
2. Confirmation so that the reading FM Deviation Meter is 2.4 ± 0.5KHz.
• • • • Confirm for 5.0KHz ± 1.5KHz FM Deviation Meter reading.
-
KX-TC2106UAB / KX-TC2106UAS / KX-TC2106UAT / KX-TC2106UAW
*Procedure
23
Check or
Replace
Parts
IC801
IC801, X801,
T803, DV1
IC801, X801,
T804,C831
IC801,
DPX1,
T802
IC801, Q802,
Q804, T802,
DPX1
DPX1, T801,
CF801,
CF802
IC801, DPX1
IC801
IC801, DV1
Q802, Q804,
T802, DV1,
DPX1