TTI TCB-660, Service Manual

Page: 17 / 43

TCB- 66 0 Circuit Description Page 1 4
T TI 200 7 - 02 -2 3
5. Test Equipment Setup and Alignment Instructions
5-1 General Section
5-1-1 Test Equipment Required
•
DC power supply(13.8V/3A)
•
DC Voltmeter or Oscilloscope
•
RF attenuator (30dB)
5-1-2 Alignment Procedure
Step Setting Connection Adjuster Adjust for
1
RX VCO voltage Adj.
Channel & Frequency :
1CH, 26.956 MHz
Mic : Receive
Volume : Optional
Squelch : Optional
RF Gain : Optional
Mic Gain : Optional
DC voltmeter to VCO
Test point (Figure 1) L301 1.5~2.0 V DC
2 TX VCO voltage Adj.
Channel & Frequency :
1CH, 26.956 MHz
Mic : Transmit(No Mod)
Volume : Optional
Squelch : Optional
RF Gain : Optional
Mic Gain : Optional
DC voltmeter to VCO
Test point (Figure 1) L301 1.5~2.0 V DC
Figure 1