Sony SPP-A985 - Cordless Telephone With Answering System, Руководство по обслуживанию

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IC Block Digrams
– BASE UNIT SECTION –
U3007 CAT93C86S
– HANDSET SECTION –
U1006 CAT93C86S
– BASE UNIT SECTION –
U3001 SN74HC595ADBR
1 8
2
3
4
INSTRUCTION
DECODER, CONTROL
LOGIC AND CLOCK
GENERATORS
INSTRUCTION
REGISTER
ADDRESS
REGISTER
DECODER
IOF 1024
(or 2048)
DATA OUT
BUFFER
EEPROM ARRAY 16384 BIT
& (1024X16) or (2048X8)
READ WRITE AMPS
DATA IN/OUT RESISTER
16 (or 8) BITS
HIGH VOLTAGE
GENERATOR
AND
PROGRAM
TIMER
VCC
7 NC
6 ORG
5 VSS DO
DI
SK
CS
1
2 3 4 5 6 7 8
9 10 16 15 14 13 12 11
SHIFT REGISTER
LATCH
PARALLEL DATA
OUTPUT
GND
VCC
LATCH CLOCK PARALLEL DATA OUTPUT SERIAL DATA INPUT OUTPUT ENABLE SHIFT CLOCK SERIAL DATA OUTPUT RESET
QB QC QD
QE QF
QG QH
SQH
A
QA