Yamaha KMA-1000 Service Manual page 16

KMA-1000/KMA-950
IC602 : YSS205B (FUNCTION P.C.B.)
Karaoke processor
(NC) 1
MD2 2
MD7 3
MD6 4
MD5 5
MD4 6
MD3 7
CDI 8
/CS 9
VDD 10
/SCK 11
DI 12
SDSY 13
BCI 14
/ANLS 15
VSS 16
(NC) 17
AVSS 18
CVB 19
BCI.SDSY.DI
DMPX
/ANLS
CVA
AIL
A/D
CNL
AIR
CHR
A/D
MIC
CHM
CUB
16
MA0
51
50 MA1
49 MA2
48 MA3
MA4
47
46 MA5
45 MA6
MA7
44
43 MA12
YSS205
42 VDD
MA14
41
40 MA10
39 MA11
38 MA9
MA8
37
36 MA13
35 DO
L/R
34
33 BCO
RD
LD
Microprocessor
interface
RA
DSP
RD
MPX
LD
LA
DA
D/A
LA
MIC
Clock
Suspected SRAM oscillate
interface
Pin no. Function name
1
(NC)
2 MD2
3 MD7
4 MD6
5 MD5
6
MD4
7 MD3
8 CD1
9 /CS
10 YDD
11
/SCK
12 DI
13 SDSY
14 BCI
15 /ANLS
16
VSS
17 (NC)
18 AYSS
19 CVB
20 MIC
21
CHM
22 CHR
23 AIR
24 AVDD
25
AIL
26
AVDD
27 CHL
28 CVA
29 AOL
30
AOR
31
AVSS
32 VSS
33 BCO
34 L/R
35
DO
36
MA13
37 MA8
38 MA9
39 MA11
40
MA10
41
MA14
/IC
42 VDD
43 MA12
44 MA7
45
MA6
/CS
46
/SCK MA5
CDI 47 MA4
48 MA3
49 MA2
50
MA1
51 MA0
BCO
L/R 52 /CE0
DO
53 /CE1
54 /OE
AOL
55
/WE
56 XO
57 XI
AOR
58 VDD
59 MCKO
60
VSS
61 /IC
62 384/256
63 MD0
64 MD1
Note) +: Pull-up terminal,
A: Analog terminal
I/O
Detail of function
I/O (Not connected)
I/O
External suspected SRAM interface data terminal
I/O External suspected SRAM interface data terminal
I/O External suspected SRAM interface data terminal
I/O External suspected SRAM interface data terminal
I/O External suspected SRAM interface data terminal
I
External suspected SRAM interface data terminal
I Microprocessor interface serial data
- Microprocessor interface chip selector
I +5V supply (digital)
I+
Microprocessor interface serial lock
I+
Digital audio input - serial data
I+ Digital audio input - L/R clock
I+ Digital audio input - bit clock
- YM7110 interface - serial data
A
GND (digital)
-
(Not connected)
A- "GND (A/D, D/A system to connect VSS at out side)"
AI "R channel, ADC center voltage of the MIC channel"
A- Inputs ADC of the analog audio MIC channel
A-
MIC inputting sample/holding condenser connector terminal
AI
AIR inputting sample/holding condenser connector terminal
A- Inputs ADC of the analog audio R channel
AI "+5V supply (A/D, D/A system to connect VDD at out side)"
A- Inputs ADC of the analog audio L channel
A-
"+5V supply (A/D, D/A system to connect VDD at out side)"
A-
AIL inputting sample/holding condenser connector terminal
AO L channel of ADC center voltage
AO Outputs DAC of the analog audio L channel
A- Outputs DAV of the analog audio L channel
-
"GND (A/D, D/A system to connect VDD at out side)"
O
GND (digital)
O Digital audio output - bit clock
O Digital audio output - L/R clock
O Digital audio output - serial data
O
External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
-
External suspected SRAM interface address terminal
O GND (digital)
O External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O
External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O External suspected SRAM interface address terminal
O
External suspected SRAM interface address terminal
O External suspected SRAM interface Chip selector = 0
O External suspected SRAM interface Chip selector = 1 (Available when two item are connected)
O External suspected SRAM interface OE terminal
O External suspected SRAM interface WE terminal
I
Crystal oscillator connected terminal
- Crystal oscillator connected terminal or External clock input terminal
O +5V supply (digital)
- Outputs the master clock (XI clock)
I GND (digital)
I+
Initial clear terminal
I/O Switches the master clock rate ('H' = 384fs, 'L' = 256fs)
I/O External suspected SRAM interface data terminal
External suspected SRAM interface data terminal