Hitachi CML152XW Service Manual page 29

1 2
INTERNAL EEPROM CHOICE "R1 & R8"
EXTERNAL EEPROM CHOICE "R2 & R9"
5VCC
R4 rework
A
CREFCLK
CREFCLK
R5 R6 R7
4.7K 4.7K 4.7K
R8 0
PCDETECT
1 2
PCDETECT
SCL
SCL
SDA
SDA
9884_CTL
9884_CTL
5VCC
R10 R11 R12 R13 R14
4.7K 4.7K 4.7K 4.7K 4.7K
B
C7 C8 C9 C10 C11
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
*All Res. and Cap. is 0603 except C15 is 0805.
C
Inverter Connector L1 BLM21P300S
RC0805D
2 1
C13
0.1uF
CN1
1
2
3
R22 1K
4
2 1
D
5
5VCC
6
7
E&T_96113-0703
1 2
3
5VCC
R1 0 C1 0.1uF
1 2 1 2
1 2
R2 0#
C4 22pF
2 1
U2
C5 22pF
35
EA/VP
2 1 Y1 R3
21
XTAL1
14.318MHz 1M
R4 22
1 2 20
XTAL2
RESET
10
RESET
RESET
22
VSS
MCINT
14
MCINT
INT0
MCU_LEDY
15
INT1
MCU_LEDG
16
T0
R9 0#
17
T1
MCA16
1 2
2
P1.0
3
P1.1
4
P1.2
5
P1.3
6
P1.4
7
P1.5
8
P1.6
9
P1.7
KEY-UP Fn [<-]
KEY-DOWN Fn [->]
KEY-R Value [+]
KEY-L Value [-]
KEY-POWER Power
RS232 Debug Connector
+12V_I
+12V_I
C14
0.1uF
5VCC
BLON
BLON
BRIGHT
BRIGHT 1
TXD
2
RXD
3
4
HEADER 4
3
4 5
5VCC
EXTERNAL
C2 0.1uF
EEPROM
1 2
MCAD0
43
P0.0
42 MCAD1
P0.1
MCAD2
41
P0.2
MCAD3
40
P0.3
MCAD4
39
P0.4
MCAD5
38
P0.5
MCAD6
37
P0.6
MCAD7
36
P0.7
MCA8
24
P2.0
MCA9
25
P2.1
MCA10
26
P2.2
MCA11
27
P2.3
MCA12
28
P2.4
MCA13
29
P2.5
MCA14
30
P2.6
MCA15
31
P2.7
MCRD# C6
19
RD MCRD#
MCWR#
18
MCWR#
WR
PSEN#
32
PSEN
MCALE
33
MCALE
ALE/P
TXD
13
5VCC
TXD
RXD
11
RXD
8051
PLCC-44
MCA8
MCA8
MCA[0..15]
User mode
5VCC
EEPROM
C12 0.1uF
2 1
8
SDA
5
SCL
6
4
AT24LC16
Keyboard Connector
R17
MUTE
1
MUTE
C15 C16
4.7uF/10V 0.1uF
C0805D
LED-Y
LED-G
CN3
KEY-UP
KEY-DOWN KEY-DOWN
KEY-R
KEY-L
KEY-POWER
4 5
6
5VCC
MCAD[0..7]
C3 0.1uF#
1 2
U1 74HCT373#
20
VCC
MCAD0 MCA0
3 2
D0 Q0
MCAD1 4 5 MCA1
D1 Q1
MCAD2 MCA2
7 6
D2 Q2
MCAD3 MCA3
8 9
D3 Q3
MCAD4 MCA4
13 12
D4 Q4
MCAD5 MCA5
14 15
D5 Q5
MCAD6 MCA6
17 16
D6 Q6
MCAD7 MCA7
18 19
D7 Q7
MCALE
11 1
G OC
10
GND
5VCC
27C010#
U3
PSEN#
24
OE
0.1uF#
MCA16
2 1 32 2
VCC A16
MCA15
30 3
VCC A15
MCA14
29
A14
MCA13
31 28
VCC/WE A13
MCA12
4
A12
MCA11
22 25
CE A11
MCA10
23
A10
MCA9
1 26
NC A9
MCA8
27
A8
MCAD7 MCA7
21 5
D7 A7
MCAD6 MCA6
20 6
D6 A6
MCAD5 MCA5
19 7
D5 A5
MCAD4 MCA4
18 8
D4 A4
MCAD3 MCA3
17 9
D3 A3
MCAD2 MCA2
15 10
D2 A2
MCAD1 MCA1
14 11
D1 A1
MCAD0 MCA0
13 12
D0 A0
16
GND
SO-8
U4
7
VCC TEST
3
SDA A2
2
SCL A1
1
GND A0
LED Pull high 5VCC
design
422
2 22K
MCU_LEDY
2
22K
CN2
1
2
3
Del R18,R19,C17,C18
4
5
6
7
8
9
10
Title
E&T_96113-1003
Size
A3
Date:
6
7 8
3
COLLECTOR
DTC124EK
SOT-23B
2 1
BASE EMITTER
5VCC
R15 R16
270 270
LED-Y LED-G
22K
Q1 MCU_LEDG Q2
2
DTC124EK 22K DTC124EK
SCHEMATIC, CTRL BD. VL-515
Document Number Rev
401A26 1H
5
Friday, December 01, 2000 Sheet 2 of
7 8
A
B
C
D