TK-3230
5
ADJUSTMENT
Receiver Section
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
1. Sensitivity
(Wide)
1) Test mode
CH: RX low, high
SSG output: –117dBm (0.32µV)
SSG MOD: 1kHz
SSG DEV: ±3kHz
SSG
Oscilloscope
AF V.M
Distortion
meter
ANT
Jig cable
SP/MIC
jack
Check
SINAD: 12dB or more
(Narrow)
2) Test mode
CH: RX low, high
SSG output: –116dBm (0.35µV)
SSG MOD: 1kHz
SSG DEV: ±1.5kHz
2. Squelch
level (open)
1) PC tune
CH: RX center (Wide)
SSG output: –121dBm
SSH MOD: 1kHz
SSG DEV: ±3.0kHz
PC
key
Adjust to open the
squelch.
2) PC tune
CH: RX center (Narrow)
SSG output: –120dBm
SSH MOD: 1kHz
SSG DEV: ±1.5kHz
Adjustment Points
PTT
TXD
LCD
ANT
3C
3T
LV
RSSI
BUSY
3M
TX-RX unit
Component side
BATT+
INT. SP+
INT. SP–
SB
BATT–
VR301
S1
PTT
J300
EXT. SP/MIC
VR300
TX-RX unit
Foil side
TC1
BATT+
BATT–
LV
BPF
MIC
BATT+/–: External power supply
terminal (Fasten it with an alligator clip)
TC1: VCO lock voltage adjustment
LV: VCO lock voltage measurement
VR300: DQT balance adjustment
