Utx-B2 - Sony UWP-V1 Service Manual

4-1. UTX-B2

Audio-IN
"MIC"
VOLUME
CONTROL
ATT
(40dB)
"LINE"
RF-131
DC-DC
CONVERTOR
(IC11, Q14)
POWER SWITCH
REGULATOR
(IC12)
LR6 x 2
(IC471)
(IC431, Q431)
PRE-
LIMITER COMPRE-
EMPHASIS
AMP
SSOR
AMP
(50usec)
COMPARATOR
AF LEVEL
DETECTOR
EEP-ROM
+5V RESET
CPU
(IC601)
+3.3V
LC
LED
(LCD Back)
UTX-B2 UTX-B2
AF
AF SW
CONTROLED
AMP
OSCILLATOR
INVERTER
32.000kHz
(X511)
(IC511)
AF MUTING
INVERTER
(IC621)
8MHz (X621)
LOCK DATA
+
LED
CPU-422
4-2 4-2
(CP321)
VOLTAGE
POWER
DRIVE
LPF
AMP
AMP
LPF
PLL IC
(IC301)
RF POWER
(H/L)
ANTENNA
ISOLA-
TOR
UTX-B2
UWP Series