Yamaha CRD-HD1300 Service Manual page 41

A B
SCHEMATIC DIAGRAM (MAIN 1/2)
1
Q Q
3 7 6 3 1 5 1 5 0
2
3
4
T E
L 1 3 9 4 2 2 9 6 5 1 3
5
6
7
IC1: SN74LS06NSR IC4: PST572CMT-R
Inverter Buffer/Driver System Reset
1A 1 14 VCC
1 Vcc
1Y 2 6A
13
2A 3 12 6Y
3 Out
+
2Y 4 11 5A
w w w
3A 5 10 5Y
3Y 6 9 4A
2 Gnd
8
GND 7 8 4Y
.
9
C D E
CLOCK
2.6
0
2
1 2.5 2.5
3
5.1
2.5
5.1
0
2.5
2.5
2.6
0
2.4
5.1
0 1.7
1.1
5.1
0
5.1
0
5.1
2.5
0
0
0
0
2.6
2.5
2.5
2.6
2.5
2.5
2.5
0
0
2.3
2.6
5.1
5.1 1 2 0
0
-4.9
0
0
0.1 3 4 5.1
0 0.9
0 0
5.1 2.1
A
0 2.4
5.1 0.9
0 5.1
5.1 5.1
5.1 0
5.1 CPU 5.1
5.1 5.1
5.1 5.1
5.0 5.1
0 5.1
5.0 5.1
4.9 5.1
5.1 5.1
0 5.1
5.1 0
5.1 4.9
2.6 5.1
0 5.0
5.1
5.1 4.9
5.1 0
0 0.1
0 5.1
0 ~
5.1 3.8
IC5: MSM5118160F-60JSR1
1Mw x 16 bit DRAM
WE OE
IC7: IS41C16257-35K
13 29
DRAM
Timing
RAS 14
Generator OE
I/O
WE
Controller
LCAS 31
Output
UCAS 8 LCAS
30 I/O 8
Buffers
Controller
UCAS
DQ1~DQ8
Column
Input
10 Address 10 Column Decoders
8 8
Buffers
Buffers
I/O RAS
Internal
Sense Amplifiers 16 16
Refresh Selector
A0~A9
Address
Control Clock
Counter
x a o Input u 1 6 3
8 8 y
Buffers
Row
Row
10 Address 10 Word Memory
Deco- DQ9~DQ16
Buffers Drivers Cells
ders i
Output
8 8
Buffers
Vcc 21
A0~A8
On Chip
Vss Generator
On Chip
IVcc Generator
Vss 22
F G
http://www.xiaoyu163.com
8
~
1.3
5.1
0
5.1
~
0
~
4.9
0
B 0
ACDR ~
5.1
0
~
5.1
~
~
~
~
~
5.1
5.1
2.6
2.6
2.6
2.6
2.6
2.6
2.6
0
0
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
C
Ch 1
Q Q
3 7 6 3 1
Ch 2
5.1 5 6 1 8
5.1 5.1 0.2 0.2 4.8
0
0.2 9 2 5.1
SYSTEM
RESET 5.1
5.1
14
5.1
11 10 11 10 3 4
5.1 0 5.1 5.1 0
5.1
14 5.1
0.2 6
5
5.1
7
0
5.1
0.2
13 12
FLASH MEMORY
5.1 0 5.1
12 13 8 9
1.6 2.0
2.3 5.1
3.0 0
5.1 0 1.7 0.9
1.7 0.9 1.3 1.4
1.9 2.4 1.4 2.4
1.9 2.1 1.7 1.3
1.8 0.9 2.4 2.1
5.1 0 1.6
1.8 1.3
0.9
1.6 1.2 4.9 1.8
1.3 1.4 5.1 5.1
1.4 2.6 1.3
1.8
0
3.4 1.2
4.8 3.4 2.3 1.9
1.4 0 3.8 1.4
1.7 2.6 1.9
2.4 2.5 2.6
2.2 2.6 2.5 1.7
2.3 2.5 2.5 4.9
2.7
2.4 2.5 0
2.7 2.5 2.4 5.1
5.1 0 2.3 2.2
DRAM
IC8: TC74HC14AF-TP1
Inverter
1A 1
14
CAS WE OE
1Y 2 13
CLOCK CONTROL CONTROL
CAS WE
GENERATOR LOGICS LOGIC
2A 3 12
2Y 4 11
RAS
DATA I/O BUS
CLOCK
GENERATOR 3A 5 10
COLUMN DECODERS
SENSE AMPLIFIERS 3Y 6
REFRESH
GND 7
COUNTER
I/O0~I/O15
.
MEMORY ARRAY
ADDRESS 262,144 x 16
# All voltage are measured with a 10MΩ/V DC electric volt meter.
BUFFERS
# Components having special characteristics are marked s and must be
replaced with parts having specifications equal to those originally
installed.
# Schematic diagram is subject to change without notice.
http://www.xiaoyu163.com
H I
2 4
9 9 8
DRAM
5.1 0
5.1 ~
5.1 ~
5.1 ~
5.1 ~
5.1
5.1 2.2
5.1 ~
5.1 ~
5.1 2.2
5.1 2.5
5.1 5.1
~
5.1 ~
5.1 ~
5.1 ~
5.1 ~
5.1 0
5 1 5 0 8 9 2 4
IC11: MBM29F800BA-70PFTN
8Mbit Flash Memory
VCC
VSS
WE
BYTE
RESET
Command
CE
OE
IC9: TC9246F-TEL
Clock Generator
VDD LOCK S2 S1 M2 M1 CKO VSS
VCC 16 15 14 13 12 11 10 9
6A
Lock µ-COM Interface
Detector
6Y
Programable Counter
5A VAR Low Vcc Detector
m
5Y
Phase
VCO
Selector
Comparator
REF A0 to A18
9 c o 4A
A-1
8 4Y
1 2 3 4 5 6 7 8
REF PD VDDA AMPI AMPO VSSA XI XO
J K L
CDR-1300/CDR-1300E
Point Pin 74 of IC2
A
2
9 9
Point B Pin 129 of IC3
Point C VCC of IC4
and OUT of IC4
POWER ON
9 8 2 9 9
IC202: NJM2904M
Dual OP-Amp
V–
Q6
Q2 Q3 Q5
– Q1 Q4
Q7
INPUTS
OUTPUT
Q13
+
Q11
Q12
Q10
Q8 Q9
RY/BY DQ0 to DQ15
RY/BY
Buffer
Input/Output
Erase Voltage
Generator Buffers
State
Control
Register
Program Voltage
Generator Chip Enable
STB
Data Latch
Output Enable
Logic
Y-Decoder Y-Gating
STB
Timer for
Address
Program/Erase
Latch
8,388,608
X-Decoder
Cell Matrix
45