Sony CDP-D12 Service Manual page 38

IC
SM5902AF (NPC)
SHOCK PROOF MEMORY CONTROLLER FOR CD PLAYER
—TOP VIEW—
34
35
36
37
38
39
40
41
42
43
44
INPUTS
: 16.9344 MHz CLOCK
CLK
RESET
: SYSTEM RESET
TEST
: TEST
YBLKCK : SUBCODE BLOCK CLOCK
YDMUTE : FORCED MUTE
YFCLK : CRYSTAL-CONTORLLED FRAME CLOCK
YFLAG : SIGNAL PORCESSOR IC RAM
OVERFLOW FLAG
YLRCK : AUDIO SERIAL LR CLOCK
YMCLK : MICROCONTROLLER INTERFACE
SHIFT CLOCK
YMDATA : MICROCONTROLLER INTERFACE
SERIAL DATA
YMLD : MICROCONTROLLER INTERFACE
LATCH CLOCK
YSCK : AUDIO SERIAL BIT CLOCK
YSRDATA : AUDIO SERIAL DATA
19
YBLKCK
CONTROL
18
YFCLK
INPUT1
17
YFLAG
25
YMDATA
26
MICRO-
YMCLK
24
CONROLLER
YMLD
21
INTERFACE
ZSENSE
7
DIT
COMPRESSION
2-6 GENERAL
UC1 - UC5
PORT
23
YDMUTE
CONTROL
20
RESET
INPUT2
8
TEST
9
3-4
PIN
PIN
I/O SIGNAL
NO. NO.
1 23
—
V 2
CC
22
2 24
I/O UC1
21
3 I/O 25
UC2
20 4 26
I/O UC3
5 I/O 27
UC4
19
28
6 I/O UC5
18
7 O 29
DIT
17
TEST
8 I 30
16 9 31
I CLK
10 — 32
GND
15
33
11 I YSRDATA
14
12 I 34
YLRCK
13
13 I 35
YSCK
12 14 36
O ZSCK
15 O 37
ZLRCK
38
16 O ZSRDATA
17 I 39
YFLAG
40
18 I
YFCLK
41
19 I YBLKCK
RESET
20 I 42
43
21 O ZSENSE
22 — 44
V 1
CC
OUTPUTS
A0 - A10 : DRAM ADDRESS
CAS CAS
: DRAM CONTROL
CAS2 CAS
: DRAM2 CONTROL
DIT : DIGITAL AUDIO INTERFACE
RAS RAS
: DRAM CONTROL
WE WE
: DRAM CONTROL
ZLRCK : AUDIO SERIAL LR CLOCK
ZSCK : AUDIO SERIAL BIT CLOCK
ZSENSE : MICROCONTROLLER
INTERFACE STATUS
ZSRDATA : AUDIO SERIAL DATA
INPUTS/OUTPUTS
D0 - D3 : DRAM DATA
UC1 - UC5 : MICROCONTROLLER
INTERFACE EXTENSION
OTHERS
V 1, V 2 : SUPPLY
CC CC
15 14 16 12 13 11
OUTPUT INTERFACE INPUT INTERFACE
ATTENUATOR INPUT BUFFER
THROUGH
MODE MODE
DECODER ENCODER
DRAM INTERFACE
34 28 27 33 35-40 29-32
TC9246F(TP1) (TOSHIBA)
DIGITAL AUDIO CLOCK GENERATOR
—TOP VIEW—
I/O SIGNAL
REF 1
IN
I YDMUTE
I YMLD PD 2
OUT
I
YMDATA
I YMCLK V 3
CCA
CAS2
O
A10/
CAS
O AMPI 4
IN
I/O
D2
I/O D3 AMPO 5
OUT
I/O D0
I/O GND 6
D1
WE
O
RAS
O XI 7
IN
O A9
O A8 XO 8
OUT
O
A7
O A6
O
A5
O A4
1
REF
O A0
REF
O
A1
PHASE
O A2 2
PD
COMPARATOR
O
A3
4
AMPI
5
AMPQ VCO
7
XI
8
XQ SELECTOR
TOTX178A (TOSHIBA)
TRANSMITTER MODULE FOR DIGITAL AUDIO
3 2 1
1
: GND
2 : V
CC
3
: INPUT
3 2 1
INPUTS
AMPI : LPF OR OSCILLATOR 1 OPERATIONAL
16 V
CC
AMPLIFIER
M1, M2 : MODE SELECT
15 LOCK
OUT
S1, S2 : PARALLEL MODE/SERIAL MODE
: REFERENCE
REF
14 S2
IN
XI : OSCILLATOR 3 OPERATIONAL AMPLIFIER
13 S1
IN
OUTPUTS
AMPO : LPF OR OSCILLATOR 1 OPERATIONAL
12 M2
IN
AMPLIFIE
CKO : OSCILLATED CLOCK
11 M1
IN
: LOCK DETECT
LOCK
PD : PHASE ERROR
10 CKO
OUT
XO : OSCILLATOR 3 OPERATIONAL AMPLIFIER
9 GND
OTHER
V : ANALOG SUPPLY VOLTAGE
CCA
LOCK
15
DETECTION
LOCK
CIRCUIT
VAR
14
S2
13
S1
12
M2
11
M1
10
CKQ
CDP-D12