Sony AVD-S50 Service Manual page 74

AVD-S50/S50ES
IC706 MSM51V18165F-60TSKR1 (DVD Board)
50 49 48 47 46 45 44 43 42
OUTPUT INPUT
BUFFER BUFFER
OUTPUT INPUT
BUFFER BUFFER
VCC VCC
1 2 3 4 5 6 7 8 9
IC808 MSM56V16160F-8TK7R1 (DVD Board)
50 49 48 47 46 45 44 43 42
OUTPUT
BUFFERS
READ
DATA
REGISTER
INPUT
DATA
REGISTER
INPUT
BUFFERS
1 2 3 4 5 6 7 8 9
74
NC
41 40 – 36 35 34 33
TIMING
GENERATOR
I/O
CONTROLLER
I/O
CONTROLLER
SENSE
AMPLIFIER
MEMORY
CELLS
VBB GENERATOR
IVCC GENERATOR
11 – 16
10 17 18
NC
41 40 39 38 37 36 35 34
TIMING
REGISTER
PROGRAMING
REGISTER
LATENCY
&
BURST
CONTROLLER
I/O
CONTROLLER
BANK
CONTROLLER
10 11 12 13 14 15 16 17 18
32 31 30 29 28
REFRESH INTERNAL
CONTROL ADDRESS
CLOCK COUNTER
ROW
COLUMN
ADDRESS
ADDRESS
BUFFERS
BUFFERS
COLUMN
DECODERS
WORD ROW
DRIVERS DECODERS
ON CHIP
VCC
ON CHIP
VCC
19 20 21 22 23
33
INTERNAL
COLUMN
COLUMN
ADDRESS
ADDRESS
BUFFERS
COUNTOR
SENSE COLUMN
AMPLIFIER DECODERS
ROW
MEMORY WORD
CELLS DRIVERS DECODERS
27 26
VCC
24 25
32 31 30 29 28 27
INTERNAL
ROW
ROW
ADDRESS
ADDRESS
BUFFERS
COUNTOR
19 20 21 22 23 24
26
25