Sony UWP-V1 Service Manual page 78

Adjustment Location
MIC LINE
S1
CT401
(Transmitter frequency)
RV102
(Transmitter output)
RV101
RV103
frequency deviation)
(Tone signal level)
S301
MB-1094 board
(A side)
2-58
RV1
(Max.
frequency deviation)
RV2
(Max.
(Reference
frequency deviation)
1. Power Supply Voltage Check
Equipment and Tools
. DC power supply
DC output voltage : +3.0 ± 0.1 Vdc
. DC ammeter
. Digital volt meter (or Digital multimeter)
Switch and Control Setting
MB-1094 board
Transmission channel
U30 model ; 30-01 channel (566.125 MHz)
U42 model ; 42-01 channel (638.125 MHz)
U6264 model ; 62-01 channel (758.125 MHz)
U6668 model ; 66-01 channel (782.125 MHz)
CE62 model ; Group 00, 62-01 channel (798.125 MHz)
CE67 model ; Group 00, 67-01 channel (838.125 MHz)
Attenuation setting
Accumulated time setting
MIC/LINE Select Switch (S1) : MIC
n
Take note of the settings before starting the confirmation
work.
After confirmation is completed, return the settings to
the original setting before change.
Connections
(For connecting the DC power supply, refer to step
"3. Connecting the DC power supply" in Section 2-6-2.)
MB-1094 board (A side)
S301
Procedure
1. Set the POWER switch (S301) on the MB-1094 board to ON.
2. Check the DC Voltage of the 3.3 V test point to the
specified voltage as below :
Specification : + terminal DC Voltage = +3.3 ± 0.1Vdc
3. Check the DC voltage of the 5 V test point to the speci-
fied voltage as below :
Specification : + terminal DC voltage= +5.0 ± 0.1Vdc
: 0 dB
: "00 : 00"
MB-1094 board (B side)
3.3V
5V
GND
+ _
DC voltmeter
UWP Series