Sony HCD-D690 Service Manual - Page 72

Panel, Board, Ic601, Tmp87cm75 Display Control

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PANEL BOARD IC601 TMP87CM75 (DISPLAY CONTROL) Pin No. Pin Name I/O 1 SEG-35 O 2 V-LOAD - 3-10 LED1-LED8 O 11 Vss - 12 X-OUT O 13 X-IN I 14 RESET I 15.16 LED9•10 O 17 TEST I 18-23 LED11-16 O 24 VOL-A I 25 LED17 O 26 JOG-A I 27 CLOCK I 28 DATA I 29 LED SELECT O 30 VDD - 31 VSS - 32 MODEL I 33-37 KEY1-KEY5 I 38 DOOR SW I 39 SIRCS I 40 VOL-B I 41 JOG-B I 42-45 SPEANA1-4 I 46 L+R I 47 LED18 O 48 VASS - 49 VA REF - 50 VDD - 51-66 GR1-16 O 67-100 SEG1-34 O FL segment signal output -25V driving power for FL LED driver signal output Ground X'tal (8MHz) X'tal (8MHz) Reset signal input LED driver signal output Conected ground LED driver signal output Volume encoder signal input LED driver signal output Jog dial encoder signal input Serial clock input from main comtroller Serial data input from main comtroller LED select signal output +5V Ground Version select signal input Key matrix input Door swith ON/OFF signal input Remote commander signal input Volume encoder signal input Jog dial encoder signal input Spectrum analyzer input Spectrum analyzer (L,R) input LED driver signal output Ground Analog reference volltage (+5v) +5V FL grid signal output FL segment signal output Function - 102 -

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– 102 –
1
SEG-35
O
FL segment signal output
2
V-LOAD
–
–25V driving power for FL
3-10
LED1-LED8
O
LED driver signal output
11
Vss
–
Ground
12
X-OUT
O
X’tal (8MHz)
13
X-IN
I
X’tal (8MHz)
14
RESET
I
Reset signal input
15.16
LED9•10
O
LED driver signal output
17
TEST
I
Conected ground
18-23
LED11-16
O
LED driver signal output
24
VOL-A
I
Volume encoder signal input
25
LED17
O
LED driver signal output
26
JOG-A
I
Jog dial encoder signal input
27
CLOCK
I
Serial clock input from main comtroller
28
DATA
I
Serial data input from main comtroller
29
LED SELECT
O
LED select signal output
30
VDD
–
+5V
31
VSS
–
Ground
32
MODEL
I
Version select signal input
33-37
KEY1-KEY5
I
Key matrix input
38
DOOR SW
I
Door swith ON/OFF signal input
39
SIRCS
I
Remote commander signal input
40
VOL-B
I
Volume encoder signal input
41
JOG-B
I
Jog dial encoder signal input
42-45
SPEANA1-4
I
Spectrum analyzer input
46
L+R
I
Spectrum analyzer (L,R) input
47
LED18
O
LED driver signal output
48
VASS
–
Ground
49
VA REF
–
Analog reference volltage (+5v)
50
VDD
–
+5V
51-66
GR1-16
O
FL grid signal output
67-100
SEG1-34
O
FL segment signal output
Pin No.
Pin Name
I/O
Function
PANEL
BOARD
IC601
TMP87CM75 (DISPLAY CONTROL)