Sony UWP-V1, Service Manual

Page: 35 / 164

2-15
UWP Series
S301
ON
OFF
CT401
(Transmitter
frequency)
RV104
(Transmitter output : L)
CT101
(Transmitter output)
RV102
(Transmitter output : H)
RV2 (Max.
frequency deviation
RV101
frequency deviation)
RV103
(Tone signal level)
RV1 (Max.
frequency deviation)
MB-1137 board (A side)
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-1137 board
Transmission channel
U30 model ; 30-01 channel (566.125 MHz)
U42 model ; 42-01 channel (638.125 MHz)
CE62 model ; Group 00, 62-01 channel (798.125 MHz)
CE67 model ; Group 00, 67-01 channel (838.125 MHz)
KR model
; 59-01 channel (740.125 MHz)
Attenuation setting : 0 dB
Accumulated time setting : “00 : 00”
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 2-2-2.)
Procedure
1. Set the POWER switch (S301) on the MB-1137 board to
ON.
2. Check the DC Voltage of the + terminal on the C212 to
the specified voltage as below :
Specification :
+
terminal DC Voltage =
+
3.3
±
0.1Vdc
3. Check the DC voltage of the
+
terminal on the C211 to
the specified voltage as below :
Specification : + terminal DC voltage = + 5.0
±
0.1Vdc
S301
ON
OFF
MB-1137 board (A side) MB-1137 board (B side)
_ +
GND
DC voltmeter
C211
C212
Adjustment Location