Sony BVW-55 Maintenance Manual page 126

OVERALL (2/3)
Block Diagram
AUX
CP-317(1/3)
REMOTE
D-SUB 9P
KY-446
RV2,3,41,51,100-103
AUDIO/VIDEO
CONTROLVR
TRACKING VR
IC109,S100-139
CONTROL PANEL
KEY/LED
MATRIX
IC103
16 MHz
CK GEN.
IC111
DIAL I/F
JOG/
SEARCH
DIAL
DIAL SENSORS
SUB LCD
DP-277
AUDIO METER
D1-57,103,S101-112
LCD PANEL
KEY/LED
MATRIX
IC110
NV-RAM
(EEPROM)
IC103
16 MHz
CK GEN.
6-6
SY-272
CN2 3P
(FACTORY USE)
INT
PIO
X201
4.91 MHz
IC105
OSC
MPU
DP-264
IC101
IC101
POWER ON
RESET
L:SYS RESET
MPU
DP-300
IC118
EVR
IC216
RS-232C
DRIVER/
RECEIVER
IC213 SW
IC115
ADDRESS
DECODE
PIO,INT,
SIO,CTC,
FRAME GEN.
IC203
SIO
LINE
DRIVER/
RECEIVER
IC206,208,209
BT101 IC120
BATTERY NV-RAM
AND
CRYSTAL RTC
IC114
DATA BUS
DATA DATA
BUFFER
IC5-8
DATA RAM ADDRESS
IC1,3
DATA SYS ROM ADDRESS
IC109-113
ADDRESS
ADDRESS
LATCH
IC108
SYS CPU
RESET CK
X101
IC104,105
40MHz
OSC 10MHz
8MHz
IC405-408
BUFFER
IC9-13
BUFFER
CN3 50P
IC306
SUPERIMPOSE
CHARACTOR
CONTROL
OSC
X300,301
IC315
IC409
MPU CONTROL
INTERFACE, BUFFER
AND PIO
RAM IC314
IC312
IC301
MPU CONTROL
INTERFACE, BUFFER
AND PIO
RAM IC311
IC302
IC307
MPU CONTROL
INTERFACE, BUFFER
AND PIO
RAM IC300
BVW-55