![background image](http://html.mh-extra.com/html/sony/hcd-gx255/hcd-gx255_service-manual_420762068.webp)
68
HCD-GX255/RG170/RG470
IC303
BH15FB1WG
THERMAL
PROTECTION
VOLTAGE
REFERENCE
CONTROL
BLOCK
OVER CURRENT
PROTECTION
VIN
+
−
1
GND
2
STBY
3
NC
4
V
OUT
5
– DRIVER Board –
IC701, 712
BA6956AN
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
– CD-G Board –
IC1002
MSM514400E-60TS-K
WRITE
CLOCK
GENERATOR
DATA INPUT
BUFFER
DATA OUTPUT
BUFFER
COLUMN
DECODER
SENSE AMP
I/O GATE
4M BIT
MEMORY
CELL
ROW
DECODER
ADDRESS
BUFFER
PRE-
DECODER
REFRESH
ADDRESS
COUNTER
BOARD
BIAS
GENERATOR
MODE
CONTROL
CLOCK
GENERATOR
1
CLOCK
GENERATOR
2
18
24
25
26
17
16
15
14
5
4
1
2
3
9
10
11
12
13
23
22
DQ1
DQ2
WE
RAS
A9
A0
A1
A2
A3
VCC
VSS
DQ4
DQ3
CAS
OE
A8
A7
A6
A5
A4
IC1005
SN74AHCT04NSR
14
13
12
11
10
9
8
1
2
3
4
5
6
7
VCC
GND
1
POWER SAVE
2
VOUT
3
VSAG
6
VCC
5
GND
4
VIN
75 OHM
DRIVER
LOW-PASS
FILTER
CLAMP
IC1006
NJM2561F1-TE2
Содержание HCD-GX255
Страница 104: ...104 HCD GX255 RG170 RG470 MEMO ...
Страница 137: ...33 HCD GX255 RG170 RG470 MEMO ...