Yamaha Clavinova CLP-920 Service Manual page 21

uPD63200GS-E1 (XP867A00) DAC (Digital to Analog Converter)
PIN
NAME I/O FUNCTION
NO.
1 4/8F I 4/8 Fs selection
2 D.GND Digital ground
3 16 BIT I 16bit/18bit selection
4 D.GND Digital power supply
5 A.GND Analog ground
6 R.OUT O Channel R output
7 A.VDD
Analog power supply
8 A.VDD
YMZ702-D (XR632A00) KSN2 (Key Scanner)
PIN
NAME I/O FUNCTION
NO.
1 BK5 O
2 BK4 O
3 BK3 O
Key block (open drein)
4 BK2 O
5 BK1 O
6 BK0 O
7 MK15 I
8 MK14 I
9 MK13 I
First make contact
10 MK12 I
11 MK11 I
12 MK10 I
13 MK05 I
14 MK04 I
15 MK03 I
Second make contact
16 MK02 I
17 MK01 I
18 MK00 I
19 XIN I Crystal osc. input (4 MHz)
20 XOUT O Crystal osc. output (4 MHz)
DM: [CLP-920] IC 4, [CLP-930] IC 9
PIN
NAME I/O FUNCTION
NO.
9 R.REF Channel R voltage reference
10 L.REF Channel L voltage reference
11 L.OUT O Channel L output
12 A.GND Analog ground
19 WDCK I Word clock
20 RSI I Channel R series input
21 SI/LSI I Series input/Channel L series input
22 CLK I Clock
PIN
NAME I/O
NO.
21 GND Ground
22 VDD Power supply
23 SO O Serial data
24 ACK I Acknowledge/mode select
25 XCK I Clock for serial data
26 /IC I Initial clear
27 TST1 I Test mode
28 TST2 I (L,L: normal mode, others: test)
29 XCKINH I Inhibit of serial clock
30 BK14 O
31 BK13 O
32 BK12 O
33 BK11 O
34 BK10 O Key block (open drein)
35 BK9 O
36 BK8 O
37 BK7 O
38 BK6 O
39 GND Ground
40 VDD Power supply
CLP-920/CLP-930
AEXL-88L: KSN2
FUNCTION
21