Casio BG-153, Service Manual & Parts List, Page: 7 / 12

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3. DRAWINGS : QW-2285 / 2286
3-1. BLOCK DIAGRAM
T1
AC
BD2
VDD
XTB
Xtal
CT
XT
N1
N2
N3
N4
C4
BAT
KI4
KI3
KI8
KI5
KI6
KI7
KC4
KC3
KC2
KC1
KI2
KI1
BD1
LL1
LD
EL
FRONT
BACK
R
VSS2
LC1~LC5 L8~L48 L49~L52 L1~L7
VCH VSS1 VSS3
LSI
TOTAL
BONDING 87PINS
80PINS
VC VCC
PZ
Tr
C1
C5
+
C2
C6
C3
V
C7
+
S4
S3
SA
S2
S1
LCD
1
1
1
3
3
1
2
1. No bonding.
2. KC2-KI5 : QW-2285 : Short (Soldering).
QW-2286 : Open (No soldering).
3. KC3-KI5 : Open (No soldering).
Tr3
TE
PE
PF
TB
Tr2
Tns1
SE
SF
SEG.
COM.
LC1 LC2 LC3 LC4 LC5
L 8
X2Y0 X2Y4
X3Y0
COL1
e7
f7
b7
f6
b6
b8
e6
g8
f8 f0
a9
b9
g9
X1Y4
a11
DASH
X3Y4
X0Y4
b11
a10
b10
f10
c0
d0
e0
c1
X1Y2
X2Y2
X3Y2
X0Y2
X1Y0
X0Y0
SIG
HYP
e11
d11
a7
d10
a6
a8
a0
a1
f1
b2
X1Y1
X2Y1
X3Y1
X1Y3
X2Y3
X3Y3
X0Y1
DST
d7
g7
c7
g6
c6
c8
d6
d8
e8
h8
c9
d9
b0
g0
b1
g1
e1 d1
X0Y3
ALM
f11
g11
c11
g10
c10
DAYS
e10
X7Y5
X8Y5
X9Y5
X11Y5
X12Y5
X16Y0
X10Y5
X15Y0
c4
e3
d5
c5
X15Y4
b4
a4
f4
f5
PM
X16Y2 X16Y4
a5
X15Y2
X7Y6
X8Y6
X9Y6
X11Y6
X12Y6
d4
e5
X16Y1
X10Y6
X15Y1 X15Y3
COL0
g4
e4
g5
AM
X16Y3
b5
X14Y0
X13Y0
X12Y0
X10Y0
X9Y0
X8Y0
X11Y0
X7Y0
X13Y4
X14Y4
X10Y4
X11Y4
X7Y4
X14Y2
X13Y2
X12Y2
X10Y2
X9Y2
X8Y2 X8Y4
X11Y2
X7Y2
X14Y1
X13Y1
X12Y1
X10Y1
X9Y1
X12Y4
X9Y4
X8Y1
X11Y1
X7Y1 X7Y3
X14Y3
X13Y3
X12Y3
X10Y3
X9Y3
X8Y3
X11Y3
X6Y0
X5Y0
X4Y0
(w3c)
(w6c)
X5Y4
X6Y4
(w0c)
(w9c)
X6Y2
X5Y2
X4Y2
(w2c)
(w12) (w10)
(w7c)
X6Y1
X5Y1
X4Y1
(w4c)
X4Y4
(w14)
(w5c)
X6Y3
X5Y3
X4Y3
(w1c)
(w13)
(w11)
(w8c)
L 9
L 10
L 11
L 12
L 13
L 14
L 15
L 16
L 17
L 18
L 19
L 20
L 21
L 22
L 23
L 24
L 25
L 26
L 27
(w9a)
(w4a)
(w2b) (w9b)
(w5a)
(w5b)
(w0a)
(w7a)
(w2a)
(w0b)
(w4b)
(w7b)
(w8a)
(w3a)
(w6a)
(w1a)
(w1b)
(w3b)
(w8b)
(w6b)
L 3
L 4
L 5
L 6
L 7
L 28
L 29
L 30
L 31
L 32
L 33
L 34
L 35
L 36
L 37
L 38
L 39
L 40
L 41
L 42
L 43
L 44
L 45
L 46
L 47
f9
X5Y5
X6Y5
X4Y5
c3
d2
a2
a3
f3
f2
e9
X5Y6
X6Y6
c2
d3
X4Y6
g2
b3
g3
e2
L 49
L 50
L 51
L 52
L 48
d0
g0
a0
c0
b0
f0
e0
d1
g1
a1
c1
b1
f1
e1
d6
g6
a6
c6
b6
f6
e6
d7
g7
a7
c7
b7
f7
e7
d8
g8
h8
a8
c8
b8
f8
e8
d9
g9
a9
c9
b9
f9
e9
d10
g10
a10
c10
b10
f10
e10
d11
g11
a11
c11
b11
f11
e11
DAYS
Y6
X0 X16
Y0
L8 L9
L10 L11 L12 L13 L14 L15 L16 L17 L18 L19 L20 L21 L22 L23 L24 L25
LC1 LC2 LC3 LC4 LC5
L48 L47 L46 L45 L44 L43 L42 L41 L40 L39 L38 L37 L36 L35 L34 L33 L32 L31 L30 L29 L28 L27 L26
PM
DASH
AM
COL0
COL1
HYP
DST
SIG
ALM
d4
g4
a4
c4
b4 f4
e4
d3
g3
a3
c3
b3 f3
e3
d2
g2
a2
c2
b2 f2
e2
d5
g5
a5
c5
b5
f5
e5