Sharp CD-MD3000H Service Manual

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CD-MD3000H/CD-MD3000W
IC1202 RH-iX2474AFZZ: 4Mbit D-RAM (IX2474AF)
Pin No.
Function
Terminal Name
1, 2 I/O1, I/O2 Data input/Data output
3 WE Write enable
4 RAS Row address storobe
5 A9 Address input
6-9 A0-A3 Address input
10 Vcc Power (3.3V)
11-15 A4-A8 Address input
16 OE Output enable
17 CAS Column address storobe
18, 19 I/O3, I/O4 Data input/Data output
20 GND Ground
Figure 105-1 BLOCK DIAGRAM OF IC
IC1301 VHiFTD2005/-1: Head Driver (FTD2005)
IC1302 VHiCPH5608/-1: Head Driver (CPH5608)
D2
S2
S2
G2
D1
S1
S1
G1
5
6
7
8
4
3
2
1
G1 S G2
D1 D2
1 2
345
Figure 105-2 BLOCK DIAGRAM OF IC
Figure 105-3 BLOCK DIAGRAM OF IC
IC1402 VHi58X2402T-1: EEPROM (58X2402T)
Pin No.
Function
Terminal Name
1-3 A0~A2 Device address
4 VSS Ground
5 SDA Serial data input/output
6 SCL Serial clock input
7 WP Write protect
8 VCC Power supply
Figure 105-4 BLOCK DIAGRAM OF IC
1234
8765
A0 A1 A2 VSS
VCC
WP
SCL
SDA
4
RAS
5
17
15
CAS
A0
A9
WE
DQ0~DQ3
20
V
SS
V BB
17
CAS
Clock Generator
CBR Refresh
Counter
Row Address
Buffer
Memory
Cell
I/O
Selection
Write Clock
Generator
Data Input
Buffer
Data Output
Buffer
Row Address
Buffer
On ChipVBB
Generator
Row Decoder
Column Decoder Sense Amp.
Word Driver
SELF Refresh
Timer
MN42V4400 Only
3
OE
16
2
18
19
1

Sharp CD-MD3000H Specifications

General

Brand	Sharp
Model	CD-MD3000H
Category	Stereo System
Language	English