JVC AV-48WP30, Service Manual

Page: 9 / 118

No. 51914
AV-48WP30
8
TECHNICAL INFORMATION
■
MAIN MICRO COMPUTER (CPU) FUNCTION
(MIN102H57K)
PIN
№
№ №
№
PIN NAME
I/O I/O I/O I/O
FUNCTION
1 CONV. SW
O
OO
O
CONVERGENCE SW
2 /VSYNC
I
II
I
V.SYNC IN for OSD
3 LB PRO
I
II
I
LOW B Protection
4 NC
－
NC
5 /RST
I
II
I
Micon Reset input
6 CONV. BUSY
O
OO
O
CONV.
7 /TEST
I II I
+3.3V
8 YS
O
OO
O
OSD YS OUT
9 NC
O
OO
O
Micon test pin
10 NC
O OO O
NC
11 A_MUTE
O
OO
O
TV Sound Muting
12 /HSYNC
I
II
I
H.sync input for OSD
13 M_MUTE
O OO O
Monitor Out Muting
14 OSDXI
－
15 OSDXO
－
16 SDA2
O OO O
I
2
C BUS (SDA) for MTS
17 AC_IN
I
II
I
AC 50/60Hz in
18 SCL2
O
OO
O
I
2
C BUS (SCL) for MTS
19 TU_POW
O
OO
O
Tuner Power Control
20 VCOI
I
II
I
LPF input
21 PDO
O
OO
O
LPF output
22 /IP_RESET
O
OO
O
23 YM
O
OO
O
OSD YM out
24 B
O
OO
O
OSD Blue out
25 LED_POWER
O
OO
O
LED for Power
26 G
O
OO
O
OSD Green Out
27 R
O
OO
O
OSD Red Out
28 VREF
I
II
I
29 IP_ERR
I
II
I
AMDP program load det.
30 IREF
I
II
I
31 COMP
I
II
I
32 AVDD
I
II
I
+3.3V
33 CLL
I
II
I
For Sub CCD
34 VREFLS
I
II
I
STD VOL in for Sub CCD
35 SUB_CCD
I
II
I
For Sub CCD
36 NC
－
NC
37 VSS
I
II
I
GND
38 MAIN_CCD
I
II
I
For main CCD
39 VREFHS
I
II
I
STD VOL in for CCD
40 CLH
I
II
I
For main CCD
41 VDD
O
OO
O
+3.3V
42 LED_DATA
O
OO
O
Front control Data
PIN
№
№ №
№
PIN NAME
I/O I/O I/O I/O
FUNCTION
43 LED_CLOCK
O
OO
O
F. LED CLK
44 LED_ON_TIMER
O
OO
O
LED on timer
45 SBO0
－
46 SBD0
－
47 AP DATA
－
48 INC
－
49 ECO RST
O OO O
Eco Reset
50 ROT COIL L
O
OO
O
Picture rotation
51 ROT COIL R
O
OO
O
Picture rotation
52 H BLK
O OO O
H.BLK
53 SN COIL_R
O
OO
O
Terrestrial Magnetism Sensor
54 SN COIL_L
O
OO
O ↑
55 BS POW
O OO O
BS power control
56 I
2
C STOP
O
OO
O
I
2
C BUS STOP
57 NC
－
58 /LOB_POW
O OO O
LOB power control
59 COMPULINK
I
II
I
AV Compulink
Ⅲ
Input
60 /POWERGOOD
I
II
I
Power Condition Check
61 /MECA_ON
I
II
I
Machine SW Interrupt
62 /MAIN_POW
O
OO
O
MAIN POWER CONTROL
63 NC
－
NC
64 /B1 POW
O
OO
O
B1 POWER CONTROL
65 C / N
－
66 X-RAY
I
II
I
X-ray detection
67 EE CDS
－
68 KEY2
I
II
I
Front Key input 2
69 KEY1
I
II
I
Front Key input 1
70 SCL1
O
OO
O
I
2
C BUS (CLK) for E
2
PROM
71 SDA1
I/O
I/O I/O
I/O
I
2
C BUS (SDA) for E
2
PROM
72 REMO
I
II
I
Remocon IN
73 AP REQ
－
74 VSS
I
II
I
GND
75 OSC2
O
OO
O
4MHz OSC
76 OSC1
I
II
I
4MHz OSC
77 VDD
I
II
I
+3.3V
78 SCL0
O
OO
O
I
2
C BUS (CLK) for General
79 AP CLK
－
80 SDA0
I/O
I/O I/O
I/O
I
2
C BUS (SDA) for General
81 NC
－
82 NC
－
83 NC
－
NC
84 P MUTE
O
OO
O
Picture muting