Sanyo DC-DAV821, Руководство по обслуживанию

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IC BLOCK DIAGRAM & DESCRIPTION
IC132 NJM4560(OP AMP)
1 A: OUT
A: -IN
A: +IN
V
EE
2
3
4
8 Vcc
B: OUT
B: -IN
B: +IN
7
6
5
B A
4
2
1 5
V
CC
GND
IN A
IN B
OUT Y
3
IC133,135,137 NC7SZ08P5(2 INPUT AND GATE)
4
2
1
5
V
CC
GND
IN A
NC
OUT Y
3
IC136,504 TC7SHU04FU(INVERTER)
IC131 PCM1723(D/A CONVERTER)
No. Name I/O DESCRIPTION
1 XT1 -
27 MHz x'tal oscillate input or external oscillator
2 SCKO O System clock output
3 VCP -
PLL power source
4 NC -
N.C
5 MCKO O Master clock buffer output
6 M L I
Software control latch
7 MC I
Software control clock
8 MD I
Software control data
9 RSTB I
Reset
10 ZERO O Zero data flag output
11 VOUTR O Rch. Analogue power output
12 GNDA -
Analogue ground
13 VCA -
Analogue power 5V
14 VOUTL O Lch. Analogue power output
15 CAP -
Output amplifier common
16 BCKIN I
Bit clock input for data
17 DIN I
Data input
18 LRCIN I
Basic sampling clock input
19 NC -
N.C
20 RSV -
N.C
21 VDD -
Digital power source 5V
22 GNDD -
Digital ground
23 GNDP -
PLL ground
24 XTO -
Crystal oscillator
IC112,113 74VHC244MTC (LINE DRIVER)
V0 VCC
GND
IC130 BMR-0302E(RESET)
1
2
3
4
5
6
7
8
9
10
17
18
19
20
11
12
13
14
15
16
Vcc
YB2
YB3
A3
YA1
B4
YA3
A1
YA2
B3
B1
B2
YA4
YB4
A2
GND
A4
YB1
OEA
OEB
2
4
6
8
11
13
15
17
18
16
14
12
9
7
5
3
1
19
YA1
B3
B1
B2
YA2
YB1
A2
YA3
YA4
NONINVERTING
OUTPUTS
DATA
INPUTS
OUTPUT
ENABLES
YB4
YB2
YB3
A3
A4
B4
A1
OEA
OEB
A, B YA, YB
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
INPUTS OUTPUTS
L
H
Z
L
H
X
L
L
H
OEA, OEB