JVC LT-Z32SX4B Service Manual page 9
Wide lcd panel television
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Also See for LT-Z32SX4B:
- Instructions manual (50 pages) ,
- Instructions manual (50 pages) ,
- Service manual (163 pages)
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2.3.3 SUB (CHASSIS) CPU PIN FUNCTION [IC7001 : DIGITAL SIGNAL PWB ASS'Y]
Pin
Pin name
I/O
1
LB_PRO
O
Not used
2
P_MU
O
Picture muting [Muting = H]
3
JP_CSB
O
Not used (NC)
4
A_MU
O
Audio muting [Muting = H]
5
M_MU
O
Audio muting (for AUDIO OUT) [Muting = H]
6
PC_SEL
O
RGB(PC) INPUT select
7
ON_TIMER
O
POWER INDICATOR (LED) brightness [LOW = L]
8
ILA0
O
Not used : LCD back light lighting
9
ILA1
O
Not used : LCD panel overshoot refresh timing
10
ILA2
O
Not used
11
POW_LED
O
POWER LED lighting [ON = H]
12
WORD
O
Not used
13
MI_CK
I
Clock for main CPU communication
14
MI_TX
I
Data receive for main CPU communication
15
MI_RX
O
Data transmission for MAIN CPU communication
16
MI_REQ
O
Data request for main CPU communication [Request = L]
17
VDD
I
3.3V power supply
18
FOSC
O
Not used (NC)
19
VSS
-
GND
20
X1
I
Not used : Low speed oscillatior
21
X0
O
Not used : Low speed oscillatior
22
VDD
I
3.3V power supply
23
OSC1
I
System clock osillation (crystal) : 16MHz
24
OSC0
O
System clock osillation (crystal) : 16MHz
25
MODE
I
Single chip mode
26
BS1.5CTL
O
Not used : Digital tuner power / reset control
27
A92RES
O
Reset for IC1001(3D YC SEP / COLOUR DEMODULAT) [Reset = H]
28
BS_RST
O
Not used: Reset for Digital tuner power / reset control
29
LIP_RST
O
Not used: Reset for Sound delay (Lip sync)
30
SOFT_OFF
O
Not used
31
VMUTE
I
Not used: Picture muting request from digital tuner
32
VOUTENB
O
Not used: Video cutoff for digital tuner
33
MDR_CON
I
Not used: System cable connection monitor for PDP
34
AVDD
I
3.3V power supply
35
BS_POW
O
Not used : Digital tuner power control
36
DsyncSW2
O
Sync select for DIGITAL-IN [Cotrolled with 99-pin]
37
LB_POW
O
Not used : Power control for low bias line
38
NC
O
Not used (NC)
39
HOTPLUG
I
Not used : Video communiation monitor for receiver unit (PDP)
40
MECA_SW
I
Mechanical monitor for POWER switch [Push = L]
41
MAIN_POW
O
Main power control [ON = L]
42
MSP_RST
O
AUDIO OUT output mode select [VARIABLE = L]
43
VREF-
I
Not used
44
AFT2
I
Not used : AFT voltage for sub tuner
45
AFT1
I
AFT voltage for VHF/UHF tuner
46
KEY2
I
Key scan data for front switch (MENU/CH+/CH-)
47
KEY1
I
Key scan data for front switch (VOL+/VOL-)
48
NC
O
Not used (NC)
49
NC
O
Not used (NC)
50
AC_IN
I
AC power pulse for timer clock
Function
Pin
53
56
69
72
81
90
92
99
100
Pin name
I/O
51
BS_TXD
O
Not used : Data transmission for digital tuner communication
52
BS_RXD
I
Not used : Data receive for digital tuner communication
NC
O
Not used (NC)
54
VREF+
I
3.3V power supply
55
PDP_TX
O
Data transmission for SUB (DRIVE) CPU communication
PDP_RX
I
Data receive for SUB (DRIVE) CPU communication
57
SDA0
I/O Data for Inter IC (serial) bus : EEP-ROM (IC7002)
58
SCL0
O
Clock for Inter IC (serial) bus : EEP-ROM (IC7002)
59
SDA_DVI
I/O Not used : Data for Inter IC (serial) bus for panel communication
60
SCL_DVI
O
Not used : Clock for Inter IC (serial) bus for panel communication
61
AVSS
-
GND
62
DIGII_PHOT
I
Not used: Photo sensor for DIGITAL-IN illegal copy protection
63
AGC
I
Not used
64
EXT_YS1
I
Not used
65
EXT_YS2
I
Not used
66
VDD
I
3.3V power supply
67
DIGI_PRO
O
Not used : For DIGITAL-IN (HDMI)
68
GCR_RST
O
Not used (NC)
GR_ON
O
Not used (NC)
70
SYNC_SEL
O
Not used : Sync select for digital tuner
71
NC
O
Not used (NC)
NC
O
Not used (NC)
73
SBD5
I/O Not used : Data for writing on board (connect CN01P : for Frash ROM type)
74
SBT5
I
Not used : Clock for writing on board (connect CN01P : for Frash ROM type)
75
NMI
I
3.3V power supply
76
COMP
I
Not used : AV COMPULINK lll control
77
REMO
I
Remote control
78
VSYNC
I
V. sync pulse
79
WAKE
I
Reset for sub(chassis) CPU
80
POWERGOOD
I
Power error detection [NG = H]
NC
O
Not used (NC)
82
RST
I
Reset for MAIN CPU [Reset = L]
83
VDD
I
3.3V power supply
84
SCL3A
O
Clock for Inter IC (serial) bus control
85
SDA3A
I/O Data for Inter IC (serial) bus control
86
SCL3B
O
Clock for Inter IC (serial) bus control
87
SDA3B
I/O Data for Inter IC (serial) bus control
88
DIGI_SYNCSEL
O
Not used
89
DIGI_LRSW
O
Not used : For DIGITAL-IN (HDMI)
DIGI_INT
I
Not used : Reset for HDMI process [Reset = L ]
91
DVI_RST
O
Not used : Reset for DVI format conversion
VSS
-
GND
93
SCL5055
O
Clock for Inter IC (serial) bus : JCC5055 (DIST process)
94
VFORMATSEL
O
Not used : Digital tuner clock control
95
SDA5055
I/O Data for Inter IC (serial) bus : JCC5055 (DIST process)
96
OSD_MODE_SEL
O
Not used : OSD mode select
97
NC
O
Not used (NC)
98
15K/OTH
O
Main video select [Fixed = H]
DsyncSW1
O
Not used : Sync select for DIGITAL-IN [Cotrolled with 36-pin]
57 BUSY
I
Busy monitor for JCC5057 (New DIST process)
Function
(No.YA209)1-9
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