Sony MDX-C8900R Service Manual page 56

QQ
3 7 63 1515 0
IC303 BH6511FS-E2
32 31 30 29 28 27
AMP
INTERFACE
CHARGE
PREDRIVE
PUMP.
OSC
PREDRIVE
AMP
INTERFACE
1 2 3 4 5 6
IC305 BA6287F
OUT1 1
TE
L 13942296513
VM 2
DRIVER
TSD
VCC 3
CONTROL LOGIC
POWER
SAVE
FIN 4
IC307 MSM51V4400-70TS-K
1
D1
D2 2
XWE 3
4
XRAS
NC 5
A0–A9
NC
6
NC 7
A9
8
A0 9
www
A1 10
A0–A9
A2 11
A3 12
.
VDD 13
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26 25 24 23 22 21
AMP AMP
AMP AMP
7 8 9 10 11 12
8 GND
7 OUT2
DRIVER
6 VREF
5 RIN
CLOCK OSC
COLUMN DECODER
SENSE REFRESH AMP
INPUT/OUTPUT CONTROL SWITCH
x ao
MEMORY CELL
y
(4194204 BIT)
i
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8
20 19 18 17
AMP V
INTERFACE DD
PREDRIVE
PREDRIVE
AMP
INTERFACE PSB
13 14 15 16
Q Q
3 6 7 1 3
GND
26
25 D4
24 D3
23 XCAS
22 XOE
21 NC
20 NC
19 NC
18 A8
17 A7
u163
16 A6
15 A5
.
14 A4
– 76 –
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9