Grundig DVD-Kit1, Руководство по обслуживанию

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Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams DVD-Kit1
3 - 4 GRUNDIG Service
PIN NAME TYPE DESCRIPTION
1 PWDN Digital input Powerdown control; low is ON, high is POWER OFF; Internal pull-down
2 SCKI Digital input System clock input (256 or 384fs)
3 TEST Digital output Reserved
4 ML/I2S Digital input Latch enable (software mode) or input format selection (hardware mode); Internal pull-up
5 MC/IWL Digital input Serial control data clock input (software mode) or input word length selection (hardware mode); Internal pull-up
6 MD/DM Digital input Serial control data input (software mode) or de-emphasis selection (hardware mode); Internal pull-up
7 RSTB Digital input Reset input – active low; Internal pull-up
8 ZERO Digital output Infinite zero detect – active low; Open drain type output with active pull-down
9 VOUTR Analogue output Right channel DAC output
10 AGND Supply Analogue ground supply
11 AVDD Supply Analogue positive supply
12 VOUTL Analogue output Left channel DAC output
13 CAP Analogue output Analogue internal reference
14 BCKIN Digital input Audio data bit clock input
15 DIN Digital input Serial audio data input
16 LRCIN Digital input Sample rate clock input
17 MUTE Digital IO Mute control pin, input or automute output; Low is not mute, high is mute, Z is automute
18 MODE Digital input Mode select pin; Low is software mode, high is hardware control; Internal pull-down
19 DVDD Supply Digital positive supply
20 DGND Supply Digital ground supply
SERIAL
INTERFACE
DIGITAL
FILTERS
CONTROL INTERFACE
BCKIN (14)
(9) VOUTR
(12) VOUTL
SIGMA
DELTA
MODULATOR
MUTE/
ATTEN
(20)
DGND
(10)
AGND
(13)
CAP
(11)
AVDD
(19)
DVDD
LRCIN (16)
DIN (15)
(3) TEST
(8) ZERO
256fs/384fs
MUTE
(17)
MODE
(18)
RSTB
(7)
PWDN
(1)
MD/DM
(6)
MC/IWL
(5)
ML/I2S
(4)
SCKI
(2)
DAC
SIGMA
DELTA
MODULATOR
MUTE/
ATTEN
DAC
WM8720
WM8720
16
15
14
20
19
18
17
5
6
7
1
2
3
4
BCKIN
DIN
LRCIN
MUTE
MODE
DGND
DVDD
RSTB
MD/DM
MC/IWL
ML/I2S
TEST
PWDN
SCKI
13
12
11
8
9
10 AVDD
VOUTL
CAP
AGND
VOUTR
ZERO
WM8720
INT 0 –
CNTR
0
CNTR 1
V REF
AV
SS
RAM
ROM
C P U
A
X
Y
S
PC
H
PC
L
PS
V
SS
21
RESET
18
V
CC
1 15
CNV
SS
2 3
X
IN
19
20
SI/O(8)
Reset input
Clock generating
circuit
A-D
converter
(10)
Timer Y( 8 )
Timer X( 8 )
Prescaler 12(8)
Prescaler X(8)
Prescaler Y(8)
Timer 1( 8 )
Timer 2( 8 )
Sub-clock
Main-clock
input
X
OUT
X
CIN
X
COUT
output
Watchdog
timer
Reset
P2(8)
P3(5)
I/O port P2 I/O port P3
P4(5)
I/O port P4
I C
INT
3
4 6 8 5 7 39 41 38 40 42 9 11 13 17 10 12 14 16
P1(8)
I/O port P1
22 24 26 28 23 25 27 29
P0(8)
I/O port P0
30 31 32 3334 35 36 37
PWM
(8)
2 X
CIN
X
COUT
P4
0
/CNTR
1
P4
1
/INT
0
P4
2
/INT
1
P4
3
/INT
2
AV
SS
P4
4
/INT
3
/PWM
V
REF
V
CC
P3
1
/AN
1
P3
2
/AN
2
P0
0
P0
4
P0
5
P0
6
P0
7
P1
1
P1
2
P1
3
/(LED
0
)
P1
4
/(LED
1
)
P1
5
/(LED
2
)
P1
0
P0
1
P0
2
P3
0
/AN
0
P3
3
/AN
3
P3
4
/AN
4
P0
3
40
41
42
22
23
24
25
26
27
28
29
30
31
32
34
35
36
37
38
39
33
3
2
1
21
20
19
18
17
16
15
14
13
12
11
9
8
7
6
5
4
10
M38513M4-XXXFP M38513M4-XXXSP
P1
6
/(LED
3
)
P1
7
/(LED
4
)
P2
7
/CNTR
0
/S
RDY
P2
6
/S
CLK
P2
5
/SCL
2
/TxD
P2
4
/SDA
2
/RxD
P2
3
/SCL
1
P2
2
/SDA
1
CNV
SS
P2
1
/X
CIN
P2
0
/X
COUT
RESET
X
IN
X
OUT
V
SS
M38513