JVC HX-Z9V Service Manual page 64

4.26 UPD784975AGF312 (IC810) : Main micon
• Pin Layout
100
1
~
30
31
• Pin function
Pin No. Name I/O
1 AVDD -
2 SPIDTI I
3 MSI I
4 MPX I
5 H/P I
6 KEY1 I
7 KEY2 I
8 KEY3 I
9 VOL- I
10 VOL+ I
11 SLCPLAY I
12 SLCKEY I
13 PHOTO I
14 AVSS -
15 VSS1 -
16 X1 I
17 X2 -
18 VDD1 -
19 ICVPP -
20 VC3RESET I/O VC3 reset
21 MSTAT I/O VC3 status input
22 KCMND I/O VC3 KCMND(serial data)
23 SCKO O
24 NC -
25 BUZZER I/O Buzzer on
26 REMIN INT Remocon input
27 SMUTE I/O System mute
28 SLCCE I/O SLC chip enable
29 CK I/O SLC / tuner clock
30 DATAOUT I/O SLC / tuner data out
31 DATAIN I/O Tuner data in
32 SM- I/O Soundmode reverse
33 SM+ I/O Soundmode forward
1-64 (No.22041)
~ 81
80
~
51
~ 50
Function
AD VDD, same as VDD1
SPI analog input
Music scan input
Tuner stereo indicator
SW vol IC btw bi-amp & dyn & off
relay
Key 1 input
Key 2 input
Key 3 input
Volume decrease
Volume increase
SLC detect play
SLC key input
SLC photo
AD VDD, same as VSS1
GND
Oscillation
Oscillation
Powersupply
Connect to VSS1
Serial clock output
Not used
Pin No. Name I/O
34 ECHO1 I/O Echo 1 data
35 ECHO2 I/O Echo 2 data
36 SPI A I/O SPI A data
37 SPI B I/O SPI B data
38 SPI C I/O SPI C data
39 PBMUTE I/O Playback mute
40 VSS0 - GND
41 VDD0 - Power supply
42 RESET I Micom reset
43 INH I/O Back-up mode detect
44 LATCH I/O Latch for vol IC
45 VOLDA I/O Volume data
46 VOLCK I/O Volume clock
47 RELAY I/O Relay out
48 POUT I/O Power on
49 ECON I/O Ecology mode
50 PRT I/O Protector in
51 NC - Not used
52 TUCE O Tuner chip enable
53 NC O Available pin
54 NC O Available pin
55 EXTDA O External IC data
56 EXTCK O External IC clock
57 EXTCE O External IC strobe
58 OEEXT O Output enable for external IC
59 VOLLED I/O Volume led
60 FSEARCH I/O Forward skip
61 RSEARCH I/O Reverse skip
62~78 S21~S5 I/O FL segment
79 VDD2 - Power supply
80 VLOAD I/O Negative power supply(-30V)
81~84 S4~S1 I/O FL segment
85~100 G16~G1 I/O FL display grid
Function