★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked
⚠
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
I
J
K
L
M
N
YMC-700/YMC-500
78
DIGITAL 4/8
CB341
IC449
IC450
IC444
IC441
IC448
IC347
IC347
IC347
IC346
IC348
IC446
IC447
1.4
1.4
1.4
3.3
1.9
2.4
1.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
0.6
0
3.3
0
3.3
3.3
3.3
3.3
0
0
3.3
3.3
3.3
3.3
0
3.3
3.3
3.3
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0.5
3.3
0
0.3
0.4
0
3.3
0.3
0.4
3.3
0
0.3
0.6
0
3.3
3.3
0
3.3
0.2
2.7
1.3
2.4
1.4
0
1.7
2.2
1.4
1.4
1.4
2.6
1.8
2.8
1.7
2.9
1.8
3.3
0
3.3
3.3
2.9
1.7
3.1
0
3.3
0.4
3.3
0
0.3
0.4
0
3.3
0.3
0.5
3.3
0
0.3
2.3
0
3.3
3.3
0
3.3
1.2
2.7
1.3
2.4
1.4
0
1.7
2.2
1.4
1.4
1.4
2.6
1.8
2.8
1.7
2.9
1.8
3.3
0
3.3
3.3
2.9
1.7
0.4
0
0
0
1.3
0
1.3
1.4
1.4
1.7
0
3.3
3.3
3.3
3.3
0
2.4
1.8
1.4
1.8
1.7
2.8
2.9
2.6
0
3.3
0
0
0.4
0.4
3.1
0.4
2.3
0.5
3.3
0.3
0.6
0.3
0.3
0.3
0.4
0.3
3.3
0
3.3
1.4
0.5
0.4
3.3
3.3
0
3.3
0
3.3
0
3.3
0
3.3
0
0.2
3.3
0
3.3
3.3
0
0
3.3
0
3.2
3.3
0
0.2
0
0
0
0
0
0.9
0
0
0
0
3.3
3.1
3.3
0
0
0
0
0
3.3
0
0
3.3
0
1.3
3.3
3.3
0
0
1.7
0
1.3
3.3
0
0
0
0
3.3
3.3
3.3
0
3.3
3.3
3.3
0
0
0
0
0
3.3
3.3
0.2
0
3.3
0.6
1.4
3.3
0
0.2
0.2
1.9
0.2
1.3
0.2
0.2
0.2
1.8
3.3
0
0
0
0
3.3
1.4
1.7
0
0
0
0
0
0
1.9
1.9
0
0
0
0
0
0
0
3.3
3.3
0
0.3
0.3
0.3
0.4
3.3
0
0
0
0
0
0
0
0
3.3
3.3
0
3.1
0.4
0.4
0.6
0.3
0.3
0.3
0.5
3.3
0
0
0
0
0
0
0
0
3.3
3.3
0
0
0
0
1.3
1.4
1.3
1.7
1.4
3.3
0
0
0
0
0
0
0
0
0
3.3
3.3
0
1.4
1.8
1.7
1.8
2.9
2.8
2.6
1.4
3.3
3.3
3.3
3.3
0
3.3
0
0.4
0.4
0.5
2.3
0.3
0.3
0.3
0.4
0
3.3
3.1
0.4
0.4
0.6
0.3
0.3
0.3
0.5
0
3.3
2.4
0
0
0
0
0
1.3
0
0
0
0
0
3.3
2.7
3.3
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
2.6
2.8
2.9
3.3
0
1.8
1.4
1.3
1.4
3.3
0
1.7
1.8
1.4
1.4
1.7
1.2
3.3
2.9
3.3
3.3
0.2
1.7
2.2
1
R4429
(+3.3EX)
(13 pin)
IC341 2
POWER ON
POWER OFF
1
R4429
(+3.3EX)
(13 pin)
IC341 2
POWER OFF
POINT
E 1 / R4429 (+3.3EX), 2 / Pin 13 of IC341
E
1
2
POWER ON
1
R4429
(+3.3EX)
(13 pin)
IC341 2
IC341
: AD91089ZSKBC
Microprocessor
PPI/GPIO
L1 data
memory
JTAG test
and emulation
Voltage
regulator
L1 instruction
memory
Memory
management
unit
Core/System bus interface
Real time clock
UART port IrDA®
Serial port (2)
DMA controller
Boot ROM
SPI port
External port FLASH,
SDRAM control
Event controller/
Core timer
Watch dock timer
Timer0, Timer1, Timer2
IC445
: LE25LA322M-TLM-E
32 k-bit serial SPI EEPROM
SERIAL INTERFACE
Y ·DECODER
1
2
3
4
VSS
WP#
SO
CS#
SI
SCK
HOLD#
VDD
8
7
6
5
X ·
DECODER
EEPROM
Cell Array
CONTROL
LOGIC
I/O BUFFERS
and
DATA LATCHES
ADDRESS
BUFFERS
and
LATCHES
CS#
SCK
SI
SO
WP#
HOLD#
IC448-450
: 74LVC1G08GW
Single 2 input AND gate
1
B
A
2
3
GND
5
4
Vcc
Y
IC349, 441-444
: 74LVC245APW,118
Octal bus transceiver with direction pin
with 5 V tolerant input/outputs (3-state)
1
DIR
2
A0
A1
A2
A3
A4
A5
A6
A7
3
4
5
6
7
20 Vcc
19
18
17
16
15
14
8
9
10
13
12 B6
B5
B4
B3
B2
B1
B0
OE
11 B7
GND
IC342, 343
: K4S560832J-UC75000
256 M synchronous DRAM
Bank Select
CLK
Row Decoder
I/O Control
Output Buffer
Sense AMP
Address Register
Data Input Register
Column Decoder
Latency & Burst Length
Programming Register
16M x 4 / 8M x 8 / 4M x 16
16M x 4 / 8M x 8 / 4M x 16
16M x 4 / 8M x 8 / 4M x 16
16M x 4 / 8M x 8 / 4M x 16
Col. Buffer
Row Buffer
Refresh Counter
ADD
LCKE
LRAS
CLK
LRAS
LCAS
Timing Register
LCBR
LWE
LDQM
DQi
LDQM
LWE
LWCBR
CKE
CS
LCBR
WE
L(U)DQM
RAS
CAS
1
V
DD
V
SS
V
SS
V
SS
N.C/RFU
UDQM
CLK
CKE
A12
A11
A9
A8
A7
A6
A5
A4
V
SSQ
V
SSQ
V
DDQ
V
DDQ
DQ15
DQ14
DQ13
DQ12
DQ11
DQ10
DQ9
DQ8
V
DD
V
DDQ
V
DD
V
DDQ
V
SSQ
V
SSQ
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
LDQM
WE
CAS
RAS
CS
BA0
A0
A1
A2
A3
BA1
A10/AP
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
54
53
52
51
50
49
48
47
46
45
44
IC344
: K8P6415UQB-PI4B000
64 Mb page mode NOR flash
I/O
Interface
and
Bank
Control
Bank 0
Cell Array
Bank 0
Address
Bank 3
Address
Bank 1
Address
Y Dec
Latch and
Control
X
Dec
Vcc
Vss
CE
OE
WE
RESET
RY/BY
WP/ACC
A0-A21
DQ0-DQ15
1
A15
A14
A13
A12
A11
A10
A9
A8
A19
A20
A18
A17
A7
A6
A5
A4
A3
A2
A1
A21
WE
RESET
WP/ACC
RY/BY
A0
CE
OE
DQ0
DQ8
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
Vcc
DQ4
DQ12
DQ5
DQ13
DQ6
DQ14
DQ7
DQ15
Vss
N.C
A16
Vss
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
28
29
30
25
26
27
31
32
33
34
35
36
37
38
39
40
41
42
43
48
47
46
45
44
Bank 3
Cell Array
Bank 1
Cell Array
Y Dec
Y Dec
X
Dec
Block
Inform
Erase
Control
X
Dec
Latch and
Control
Latch and
Control
High
Voltage
Gen.
Program
Control
IC348, 446
: 74LVC32APW
Quad 2 input OR gate
1
1A
2
1B
3
1Y
4
2A
5
2B
6
2Y
7
14 Vcc
13 4B
12 4A
11 4Y
10 3B
9
3A
8
3Y
GND
IC447
: 74LVC00APW
Quad 2 input NAND gate
1
1A
2
1B
3
1Y
4
2A
5
2B
6
2Y
7
14 Vcc
13 4B
12 4A
11 4Y
10 3B
9
3A
8
3Y
GND
IC347
: 74LVC14APW
Hex inverter schmitt trigger with 5 V tolerant input
1
1A
1Y
2
3
2Y
4
2A
3A
5
6
3Y
7
14 Vcc
13
12
6A
11
6Y
10
9
4A
8
4Y
5A
5Y
GND
IC345
: SN74LV123APWR
Dual retriggerable monostable multivibrators with schmitt-trigger inputs
1B
1CLR
2CLR
1A
A
B
Q
Q
CLR
2B
2A
VCC
1Q
2Q
GND
1Q
2Q
2Cext
2Rext/Cext
Rext/Cext
Cext
1Rext/Cext
1Cext
2
3
4
5
6
7
8
1
15
14
13
12
11
10
9
16
R
IC346
: 74LVC08APW
Quad 2 input AND gate
1
1A
2
1B
3
1Y
4
2A
5
2B
6
2Y
7
14 Vcc
13 4B
12 4A
11 4Y
10 3B
9
3A
8
3Y
GND
EEPROM
SDRAM
BUS BUFFER
SDRAM
FLASH MEMORY
No replacement part available.
YMC-500
to DIGITAL 5/8
to DIGITAL 8/8
to DIGITAL 8/8
to DIGITAL 3/8
to DIGITAL 8/8
to DIGITAL 8/8
to DIGITAL 3/8
to DIGITAL 8/8
to DIGITAL 8/8
to DIGITAL 3/8
to DIGITAL 3/8
to DIGITAL 6/8
to DIGITAL 6/8
to DIGITAL 6/8
to DIGITAL 6/8
to DIGITAL 5/8, 6/8
to DIGITAL 6/8, 7/8
to DIGITAL 5/8
YMC-700
w
w
w
.
x
i a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299