JVC AV-32S565 Series Service Manual page 6

2.3 TECHNICAL INFORMATION
2.3.1 MAIN MICRO COMPUTER (CPU) FUNCTION
Pin No. Pin name I/O
1 BS_RXD - Not used
2 /MICON_V I V. sync for OSD
3 LB_PRO I Low B protect detection [Detect: H]
4 NC - Not used
5 /RST I CPU reset [Reset: L]
6 FORMAT_EDGE O NC
7 /TEST O Operation test for CPU
8 OSD_YS I Ys (blanking) for OSD
9 SDA4 I/O Data for Inter IC control (for DIST)
10 SYNCSEL O Not used
11 A_MU O Audio muting [Muting: H]
12 /MICON_H O H. sync for OSD
13 M_MU O NC
14 OSDXI O Keep for OSD oscillation
15 OSDXO O Keep for OSD oscillation
16 SDA2 I/O Data for Inter IC control (for MTS)
17 AC_IN I AC(60Hz) for timer clock
18 SCL2 O Clock for Inter IC control (for MTS)
19 TU_POW - Not used
20 VCOI I LPF
21 PDO I LPF
22 /IP_RESET I Reset for DIST [Reset: L]
23 OSD_YM I YM (transparence) for OSD
24 OSD_B O Blue for OSD
25 POWER_LED O Lighting for POWER LED [Lighting: H]
26 OSD_G O Green for OSD
27 OSD_R O Red for OSD
28 VREF I Reference voltage for OSD
29 IP_ERR I AMDP program load error detection [Detect: L ]
30 IREF O Reference current for OSD
31 COMP O Phase adjust for OSD
32 AVDD I +3.3V
33 CLL O For low clamp level
34 VREFLS I Reference voltage in for sub CCD
35 SUB_CCD I Composite video for sub CCD
36 NC - Not used
37 VSS - GND
38 MAIN_CCD O Composite video for main CCD
39 VREFHS O Reference voltage for main CCD
40 CLH O For high clamp level
41 VDD/VPP I +3.3V
42 SCL4 O Clock for Inter IC control (for DIST)
Function Pin No.
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
Pin name I/O
P74 - Not used
ON_TIM - Not used
SBO0 - Not used
SBD0 - Not used
SBT1 I Use for on board writing [for factory]
TS_PC_DET - Not used
SRQ - Not used
BS1.5CTL - Not used
EE_ABL - Not used
ABL/ACL O ABL/ACL control
CHROMA I Not used
DC_COTL I Black level DC reproduce control
FMT1 - Not used
FMT2 - Not used
AFC_1 I Sub AFT voltage
/LOB_POW O Low B power control [Power on: L]
COMPLINK I/O AV compulink lll control
/POWERGOOD I Power condition check
/MECA_ON O Power SW interrupt [Pushing:L]
/MAIN_POW I Main power control [Power on: L]
NC - Not used
/B1_POW O B1 power control [Power on: L]
C/N I Main AFT voltage
X_RAY_M I X-ray protect detection [Protect: 0.7V]
EE_CDS - Not used
KEY2 I/O Key scan for front key (CH+ Vol-/+)
KEY1 O Key scan for front key (Menu CH-)
SCL1 O Clock for Inter IC control (for Memory)
SDA1 I/O Data for Inter IC control (for Memory)
REMO I Remote control [No input: H]
POW_DET - Not used
VSS - GND
OSC2 O System clock oscillation (4MHz)
OSC1 I System clock oscillation (4MHz)
VDD I +3.3V
SCL0 O Clock for Inter IC control (for Generally)
VOUTENB - Not used
SDA0 I/O Data for Inter IC control (for Generally)
P57 - Not used
BS_TXD - Not used
BS_TXD - Not used
P_MUTE O Picture muting [Muting: H]
Function
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