JVC UX-G6 Service Manual page 14

UPD780023 (IC701) : System control
1.Pin layout
64 ~ 49
1 48
16 33
17 ~ 32
3.Pin function
Pin No. Symbol
1,2 JOG1A,B
3,4 JOG2A,B
5 CLOSE
6 OPEN
7 CLOSESW
8 OPENSW
9 VSS0
10 VDD0
11
12 FLOFF
13 FLBK
14 FLLAT
15
16 FLSOUT
17 FLSLK
18 COMMAND
19 STATUS
20 CLK
21 READY
22 P.ON
23 SMUTE
24 VDD1
25 AVSS
26 PRT
27 DLOCK
28~32
33 PANELKEY
34 AVREF
35 AVDD
36 RESET
37 XT2
38 XT1
39 VPP
40,41 X2,X1
42 VSS1
43~46 KEYI1~4
47~49 KEYO0~3
50~59
60 POWERLED
61 STBYLED
62 LEDDIM
63 JOG1BLU
64 JOG2BLU
2.Key matrix
KEYO1
KEYI1
KEYI2
KEYI3 PLAYMODE
KEYI4 RECMODE
I/O
I Rotary encoder input from JOG1(JS701)
I Rotary encoder input from JOG2(JS702)
O Front panel close control signal output to IC901
O Front panel open control signal output to IC901
I Front panel close switch detection terminal from SW912
I Front panel open switch detection terminal from SW911
- Connect to GND
- Power supply
- Non connect
O FL OFF output (At Eco mode)
O FL driver I/F (valiable by dimmer)
O FL driver I/F (latch)
- Non connect
O FL driver I/F
O FL driver I/F
I System micom I/F to XT-UXG6
O Status signal output (System micom I/F to XT-UXG6)
I Clock signal input (System micom I/F to XT-UXG6)
I Ready input (System micom I/F to XT-UXG6)
O Power ON control output H:Power ON
O System mute
- Power supply
- Connect to GND
I Speaker protector
I Panel lock : 95h~00h(200ms)
- Connect to GND
I Key input (S7001~S7004)
- Power supply +5V (Standard AD)
- Power supply +5V (Connect to Vdd)
I Reset input
- Non connect
- Connect to GND
- Connect to GND
I/O Oscllation terminal (8MHz)
- Connect to GND
I Key matrix input terminal
O Key matrix output terminal
- Connect to GND
O Power ON LED control terminal H:Lighting
O Power OFF LED control terminal H:Lighting
O LED dimmer control
O
LED control for JOG1(JS701) Lighting when power ON, Blinking when operating
O
LED control for JOG2(JS702) Lighting when power ON, Blinking when operating
KEYO2
CLOCK/TIMER
SET
CANCEL
Function
L:It is dark.
UX-G6/FS-G6
KEYO3
TITLE/EDIT
DISPLAY/CHARA.
ENTER
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