17
17
D-EJ750/EJ751/EJ753/EJ755/EJ756CK/EJ758CK
5-6. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) – • Refer to page 18 for Notes.
R801
R802
R803
R813
R815
R818
R820
R821
R826
R828
R829
R830
R831
R833
R835
R836
R837
R827
R834
CN901
R825
R822
R817
R814
S801
R819
C817
C802
10
µ
0.1
µ
0.1
µ
0.1
µ
C801
S803
C812
C810
C806
C803
S802
CN801
C809
C813
C811
C827
C815
C807
C808
C804
C805
0.1
µ
2.2
µ
0.1
µ
0.1
µ
C819
C818
VDR810
VDR807
VDR806
D805
100k
100k
100k
100k
0.1
µ
0.1
µ
100k
220k
100k
10k
1k
4.7k
10k
22k
10k
1k
4.7k
10k
2.2k
2.2k
FLASH ROM
PROGRAM
22k
100k
100k
100k
(OPEN/CLOSE)
100k
4700p
4700p 4700p
30PIN
4700p
4700p
4700p
4V
4700p
AVR-M1608C080
AVR-M1608C080
AVR-M1608C080
MA2ZD1400
GND
OP
VCPU 2V
B1
AGC PW
M
AD RMKEY
AD SEL
W
AKEUP
B3
BEEP
DCINMNT
CHGMNT
BATTMNT
RESET
COM
0
COM
1
COM
2
COM
3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
RESET2
TEST
P_SDTO
P_SCK
P_SEL
P_SCK
P_SDTO
P_SDTI
P_SEL
P_SDTI
COM0
COM1
COM2
COM3
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
SEG14
OPSTB
OPGSW
SCOR
GRSCOR
AMUTE
XSOE
XLAT
M
SDTI
M
SDTO
M
SCK
FOK
R4M
XPOWLT
XRST
*
LCD DISPLAY
LCD DISPLAY
SOUND
PLAY MODE
REPEAT/ENTER
VOL +
VOL -
CHG
SWITCH UNIT
G-PROTECTION
HOLD
ON
OFF
ON
OFF
*
821
220k
22k
FR
FR
EXCEPT
EXCEPT
US
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 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299