Sony MZ-R50 - MD Walkman MiniDisc Recorder Service Manual page 45

IC802 RS5RJ29261
OSC
1
VSS
CE 2
VD OUT 3
4
VD IN
IC807 AK93C45AV-L
4
DO
INSTRUCTION
3
DI
REGISTER
2
SK
1
CS
–
VLX LIMITER 8
LX
VFM
7 EXT
+
SOFT START
VREF 1
6
VDD
+ VREF 2
+
5
V OUT
REGISTER
INSTRUCTION
DECODE
CONTROL
&
CLOCK
GENERATION
DATA
R/W AMPS
&
AUTO ERASE
VTEF
VPP
GENERATOR
VPP SW
ADD
DECODER
BUFFERS
– 63 –
5 GND
NC
6
EEPROM
7 NC
1024BIT
64X16
8 VCC