Service manual

CA-8
CA CIRCUIT DESCRIPTIONS
Memory
The EEPROM, IC6001, is a small but vital part of the CA receiver. This 512 byte memory chip is respon-
sible for storing servicer adjustments, channel information, and user settings, even when power is removed
from the set. This information is transferred on the clock and data lines from the micro into pins 5 and 6.
The EEPROM is powered by the +5VSBF source at pin 8.
1
2
3
45
6
7
8
IC6001
R6049
R6050M
+5VSBF
L6003
C6020
C6021M
1
2
3
4
5
+5VSBF
R6072R6039M
C6019M
R6046M
R6045M
R6047M
R6048M
C6047MC6048MC6049MC6050M
IDENT
DATA2DATA1
CLOCK2CLOCK1
R6041R6042MR6043R6044M
CLOCK2
DATA2
(IC6000) 3536373839
Clock & Data
for Tuner, Video
and Audio
4G9
<<Figure CA-7>>