Sony STR-DH540, Руководство по обслуживанию

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STR-DH540
47
IC2112 TC7WH157FK (DIGITAL BOARD (2/7))
IC3002 MFI341S2162 (DIGITAL BOARD (5/7))
1 NC
MODE1
3 NC
4 RESET
5 VCC
6 NC
7 NC
8 NC
9
NC
10 NC
2
20
19
18
17
16
15
14
13
12
11
NC
NC
NC
NC
NC
NC
MODE0
12C_SDA
12C_SCL
VSS
System control
Security logic
RNG
WDT
FMU
Voltage monitoring circuit
HB/300H CPU
I/O port
ROM (112 kbytes)
Internal data bus
RAM (4 kbytes)
EEPROM (16 2 kbytes)
Interval timer 1
Interval timer 2
Modular multiplication
coprocessor
On-chip
oscillator
Power-on
reset circuit
Internal address bus
Register
(612 bytes)
IC2111 TC74VHC393FT (ELK) (DIGITAL BOARD (1/7))
14 13 12 11 10 9 8
1 2 3 4 5 6 7
Q
A
Q
B
Q
C
Q
D
A CLEAR
Q
A
Q
B
Q
C
Q
D
A
CLEAR
RDA CKA Q1A Q2A Q3A Q4A
GND
Q4B Q3B Q2B RDB Q1B CKB VCC
SELECT 11 6
STROBE 11 7
A 1
2
3
A
B
Y 5
Y
B
GND 4
VCC
8
Y
EN G
Y