Vco And Rx Adjustment Specification; Tx Adjustment Specification - Alinco DR-135 Service Manual

2) VCO and RX Adjustment Specification

ITEM CONDITION
Adjustment 224.90MHz
Frequency TX
VCO 225.00MHz
Adjustment RX
VCO 224.99MHz
Confirmation TX
Rx Signal 223.50MHz
Sensitivity
Adjustment
216.05MHz
223.50MHz
250.05MHz
Squelch 223.50MHz
Adjustment SSG OFF
Indication 01
S Meter 223.50MHz
Adjustment SSG20dBu 1KHz
3.5KHz/DEV

3) Tx Adjustment Specification

ITEM CONDITION
HI POWER 223.50MHz
Adjustment HI POWER
MID POWER 223.50MHz
Adjustment MID POWER
LOW POWER 223.50MHz
Confirmation LOW POWER
Maximum 223.50MHz
Deviation MOD
Adjustment 1KHz40mVemf
WIDE
Maximum 223.50MHz
Deviation MOD
Adjustment 1KHz40mVemf
NARROW
Mic Gain 223.50MHz
Adjustment MOD
1KHz4mVemf
WIDE
CTCSS 223.50MHz
Modulation 88.5Hz
Level
Confirmation
DCS 223.50MHz
Modulation 255 Code
Level
Adjustment
1750Hz 223.50MHz
Modulation 1750Hz
Level
Confirmation
DTMF 223.50MHz
Modulation
DTMF 1
Level
Press the V/M
Confirmation
key during TX
UNIT ADJ.SPOT
MAIN TC101 Adjust so that Tx Frequency
becomes within 224.90MHz±100Hz
VCO L503 Adjust so that PD voltage becomes
2.2V
VCO Confirm if PD voltage becomes less
than 6.2 V
MAIN L105, L104 Repeatedly adjust so that the Rx
L103, L107 sensitivity becomes in maximum.
L102 Confirm:
At -7dBu SINAD more than 12dB
At -8dBu SINAD more than 12dB
At -3dBu SINAD more than 12dB
MAIN VR101 Adjust so that the squelch stops at
perfectly close location
MAIN VR102 Adjust so that all the indicator
appears
UNIT ADJ.SPOT
MAIN VR103 Adjust to 25.0±1.0W
MAIN VR104 Adjust to 10.0±1.0W
MAIN Confirm if it becomes 4.5±1.0W
MAIN VR107 4.5±0.1KHz/DEV
MAIN VR105 2.2±0.1KHz/DEV
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MAIN VR106 3.0±0.1KHz/DEV
MAIN 800±300Hz/DEV 3KHz LPF ON
MAIN VR108 800±100Hz/DEV 3KHz LPF ON
MAIN 3.0±0.5KHz/DEV
MAIN 3.0 ±0.5KHz/DEV
ADJUSTING METHOD
ADJUSTING METHOD
51
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