Sony CDX-C90R Service Manual page 27

IC721 BU2624FV-E2
REFERENCE
XIN 1
DIVIDER
CE 2
I/O
CK 4
SHIFT REGISTER LATCH
CTL
DA
5
CD 6
P0 7
P1 9
10
P3
IC851 TA2051FN(EL)
24 23 22 21 20
NOISE FILTER NOISE
SOM1
AMP AMP DET
AF AGC NOISE AGC
DET DET
IF AGC
DET
2ND IF
DET
AGC
AMP
1 2 3 4 5
IC921 MSM6685JSDR1
TEST
1
TIMING
RWCK
2
GENERATOR
NC 3
TEST
4
TEST 5
8,388,608DATA
REGISTER
9
TEST
TEST 10
DIN 11 COLUMN DECODER
NC
12
COLUMN ADDRESS
VSS 13
COUNTER
WRITE CLOCK
GENERATOR
PHASE
DET
MAIN
PRESCALER
COUNT
IF COUNT
CTL
20BIT COUNT
19 18 17 16
NFB NFB
GATE AMP
SOM2
SUB MAIN
GATE
GATE
PHASE
SHIFTER
BUFFER
(CH1)
BUFFER
PHASE
SHIFTER
SUB
MAIN
GATE
GATE
NFB
NFB
REG
GATE
AMP
6 7 8 9
REFRESH TIMER
REFRESH ADDRESS
COUNTER
ROW ADDRESS
COUNTER
ROW ADDRESS
REGISTER
IC600 BA6285FP-E2
20 XOUT
19
VSS
18 PD
17 VDD
16 FMIN
15 AMIN
14 P2
13 IFIN
12 SD
11 P4
IC761 µPD4066BG
15 14 13
(CH2)
10 11 12
IC722, 941 TCW66FU
26 VCC
25
RS/A
24 RFSH
23 SAD
22 SAS
18
TAS
CS
17
WE
16
15 DOUT
14 NC
– 67 –
VREF
CONTROL
DRIVER DRIVER
7
6 5 4 3 2
13
8 9 10 11 12
8 7 6 5
1 2 3 4
1
14