Sony XES-Z50 Service Manual page 106

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• IC Block Diagram
– MAIN Board –
IC503 MM1175XF-T1
BUS ON
1
OUT
RESET
RESET
2
SWITCH
OUT
BATT
3
BATT
SWITCH
CLK
4
OUT
VREF 5
DATA
6
IN/OUT
GND
7
IC515 NM24C04EM8-FL63
START CYCLE
START/
STOP
LOGIC
CONTROL
LOGIC
SLAVE ADDRESS
REGISTER &
TE
L 13942296513
COMPARATOR
A0
1
A1
WORD
2
A2 ADDRESS
3
COUNTER
R/W
4 VSS
D OUT
ACK
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VCC
14
RESET
13
IN
BUS ON
12
IN
CLK
11
IN
BATT
10
CHECK
9
DATA IN
8 DATA OUT
VCC 8
H.V. GENERATION
NC 7
TIMING & CONTROL
6
SCL
EEPROM
X
DECODER
32 x 16 x 8
32
4 16
4
Y
DECODER
8
CK
D OUT
DATA
D IN
REGISTER
5
SDA
x ao
y
i
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8
IC516 AT24C08N-10SI-SL383B
START
STOP
LOGIC
LOAD
Q Q
3 6 7 1 3
DEVICE
ADDRESS
COMPARATOR
A0 1
R/W
A1 2
ADDR/COUNTER
A2
3
GND 4
D
IN
D
OUT
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.
2 9 9 4 2 8
SERIAL
EN
H.V. PUMP/TIMING
CONTROL
LOGIC
COMP
1 5 0 5 8 2 9 9 4
DATA RECOVERY
LOAD INC
DATA WORD
2
E PROM
Y DEC
SERIAL MUX
D /ACK
OUT
LOGIC
m
co
9 9
8 VCC
2 8 9 9
7 TST
6 SDL
SDA
5