Service manual

ER-A242U CIRCUIT DIAGRAM AND PWB LAYOUT
– 19 –
(BUSY:FOR BOOT)
/CI 5V
100ohm*5
1000pF*5
EFCB322513TS X 8
P6 7
/R S
P7 4
RD RD
/CI
/CD
P7 7
/DR
/SD
/S9
/ER
P6 4 P9 1
/SD
/R S
P6 6 P7 5
/DR /C S
/CD
P7 6
/C S
/ER
P76 P66 P77 P91 P75
/S9
P64 P74 P67
VCC
VCC
VCC
C87 0.1uF
C8 6
0.1uF
CN9
DB R50-09K1300
1 2 3 4 5 6 7 8 9
R2 47
10 K
FB8
Q14
KRC 111S
C91
R2 42 10 K
C8 5
0.1uF
C84
0.1uF
IC14
HIN 211
12 14 15 16
7 6
20 21
8 5
26 22 19 24
13 17 2 3 1 28 9 4 27 23 18 25
1110
C1+ C1- C2+ C2- T1IN T2IN T3IN T4IN R1OUT R2OUT R3OUT R4OUT R5OUT /EN
V+
V-
T1OUT T2OUT T3OUT T4OUT
R1IN R2IN R3IN R4IN R5IN
/SHDN
VCC10
FB11
R1 09
C93
FB12 FB9 FB13
R2 43
10 K
FB10
C89 0.1uF
R1 08
FB14
+
C88 10uF /50V
R1 10 R1 11
C94
D16
1SS3 55
FB15
C90 C92
R1 12
A B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A
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