Clarion PS-2760D, Service Manual

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PS-2760D
EXPLANATION OF IC
Main section
051-5027-10 LC75412W H-UC
Electric volume with Tone Controller
051-6052-20 LC75817NTRH8720-UC-E
LCD Driver with Key Scan
Terminal Description
pin 1: KS OUT 6 : O : Key scan output.
pin 2: KS OUT 5 : O : Key scan output.
pin 3: KS OUT 4 : O : Key scan output.
pin 4: KS OUT 3 : O : Key scan output.
pin 5: KS OUT 2 : O : Key scan output.
pin 6: KS OUT 1 : O : Key scan output.
pin 7: COMMON 1 : O : The common signal output.
pin 8: COMMON 2 : O : The common signal output.
pin 9: COMMON 3 : O : The common signal output.
pin 10: COMMON 4 : O : The common signal output.
pin 11: COMMON 5 : O : The common signal output.
pin 12: COMMON 6 : O : The common signal output.
pin 13: COMMON 7 : O : The common signal output.
pin 14: COMMON 8 : O : The common signal output.
pin 15: COMMON 9 : O : The common signal output.
pin 16: SEG 60/ COM10: O : The segment signal output./The common
signal output.
pin 17: SEG 59 : O : The segment signal output.
pin 18: SEG 58 : O : The segment signal output.
pin 19: SEG 57 : O : The segment signal output.
pin 20: SEG 56 : O : The segment signal output.
pin 21: SEG 55 : O : The segment signal output.
pin 22: SEG 54 : O : The segment signal output.
pin 23: SEG 53 : O : The segment signal output.
pin 24: SEG 52 : O : The segment signal output.
pin 25: SEG 51 : O : The segment signal output.
pin 26: SEG 50 : O : The segment signal output.
pin 27: SEG 49 : O : The segment signal output.
pin 28: SEG 48 : O : The segment signal output.
pin 29: SEG 47 : O : The segment signal output.
pin 30: SEG 46 : O : The segment signal output.
pin 31: SEG 45 : O : The segment signal output.
pin 32: SEG 44 : O : The segment signal output.
pin 33: SEG 43 : O : The segment signal output.
pin 34: SEG 42 : O : The segment signal output.
pin 35: SEG 41 : O : The segment signal output.
pin 36: SEG 40 : O : The segment signal output.
pin 37: SEG 39 : O : The segment signal output.
pin 38: SEG 38 : O : The segment signal output.
pin 39: SEG 37 : O : The segment signal output.
pin 40: SEG 36 : O : The segment signal output.
pin 41: SEG 35 : O : The segment signal output.
pin 42: SEG 34 : O : The segment signal output.
pin 43: SEG 33 : O : The segment signal output.
pin 44: SEG 32 : O : The segment signal output.
pin 45: SEG 31 : O : The segment signal output.
pin 46: SEG 30 : O : The segment signal output.
pin 47: SEG 29 : O : The segment signal output.
pin 48: SEG 28 : O : The segment signal output.
pin 49: SEG 27 : O : The segment signal output.
pin 50: SEG 26 : O : The segment signal output.
pin 51: SEG 25 : O : The segment signal output.
pin 52: SEG 24 : O : The segment signal output.
pin 53: SEG 23 : O : The segment signal output.
pin 54: SEG 22 : O : The segment signal output.
pin 55: SEG 21 : O : The segment signal output.
pin 56: SEG 20 : O : The segment signal output.
pin 57: SEG 19 : O : The segment signal output.
pin 58: SEG 18 : O : The segment signal output.
pin 59: SEG 17 : O : The segment signal output.
pin 60: SEG 16 : O : The segment signal output.
pin 61: SEG 15 : O : The segment signal output.
pin 62: SEG 14 : O : The segment signal output.
pin 63: SEG 13 : O : The segment signal output.
pin 64: SEG 12 : O : The segment signal output.
pin 65: SEG 11 : O : The segment signal output.
pin 66: SEG 10 : O : The segment signal output.
pin 67: SEG 9 : O : The segment signal output.
pin 68: SEG 8 : O : The segment signal output.
pin 69: SEG 7 : O : The segment signal output.
pin 70: SEG 6 : O : The segment signal output.
pin 71: SEG 5 : O : The segment signal output.
pin 72: SEG 4 : O : The segment signal output.
pin 73: SEG 3 : O : The segment signal output.
pin 74: SEG 2 : O : The segment signal output.
pin 75: SEG 1 : O : The segment signal output.
pin 76: DI : IN : Serial data input.
pin 77: CLOCK : IN : Clock pulse input.
pin 78: CE : IN : Chip enable signal input.
pin 79: DO : O : Serial data output.
pin 80: INHIBIT : IN : The inhibit command input.
pin 81: OSC IN : IN : Oscillation input.
pin 82: OSC OUT : O : Oscillation output.
pin 83: CN VSS : IN : Connect to VSS.
pin 84: VSS : - : Negative supply voltage.
pin 85: V LCD 4 : - : 0/4 bias voltage for the LCD.
pin 86: V LCD 3 : - : 1/4 bias voltage for the LCD.
pin 87: V LCD 2 : - : 2/4 bias voltage for the LCD.
pin 88: V LCD 1 : - : 3/4 bias voltage for the LCD.
pin 89: V LCD 0 : O : 4/4 bias voltage for the LCD.
pin 90: V LCD : - : Positive supply voltage for the LCD driver.
pin 91: VDD : - : Positive supply voltage.
pin 92: GPO 4 : O : The general purpose output.
pin 93: GPO 3 : O : The general purpose output.
pin 94: GPO 2 : O : The general purpose output.
pin 95: GPO 1 : O : The general purpose output.
pin 96: KS IN 5 : IN : Key scan input.
pin 97: KS IN 4 : IN : Key scan input.
pin 98: KS IN 3 : IN : Key scan input.
pin 99: KS IN 2 : IN : Key scan input.
pin100: KS IN 1 : IN : Key scan input.
Gain
adjust
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
R Sel out
R VR in
R CT
NC
NC
NC
R F1 C1
R F1 C2
R F1 C3
NC
NC
NC
R F3 C1
R F3 C2
R F3 C3
R T out 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Vo
lu
m
e
with
Loudness
Control
To
n
e
C
o
n
tr
o
l
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Fader
Control
Gain
adjust
Vo
lu
m
e
with
Loudness
Control
To
n
e
C
o
n
tr
o
l
Fader
Control
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33 L Sel out
L VR in
L CT
NC
NC
NC
L F1 C1
L F1 C2
L F1 C3
NC
NC
NC
L F3 C1
L F3 C2
L F3 C3
L T out
Digital
Controller
RV
re
f
LV
re
f
R
F
ader
in
R
F
ront
out
RR
e
a
ro
u
t
T
ime
Set
NC
R
A
VSS
Mute
in
Chip
Enable
in
Data
in
Clock
in
D
VSS
TEST
L
A
VSS
L
R
ear
o
ut
L
F
ront
out
L
F
ader
in
R5P
o
si
R5N
e
g
a
R4 R3 R2 R1 R6 Vr
e
f
VDD L6 L1 L2 L3 L4 L
5
Nega
L
5
Posi