Marantz DV2400, Руководство по обслуживанию

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27
IC4:BH7862FS
12. MICROPROCESSOR AND IC DATA
Pin No. Pin name Pin description Input/output equivalent circuit
3
12
14
CIN
PbIN
PrIN
5
8 YIN
PYIN
Signal input terminal.
Input terminal for chroma signal and color-difference
signal.
Bias type input.
The input impedance is 20k
Ω
.
Signal input terminal.
Input terminal for luminance signal.
Di clamp input.
24
25
29
30 MIXFB
MIXOUT
YFB
YOUT
Signal output terminal.
Output terminal for luminance signal (interlaced type).
Signal output terminal.
Output terminal for Y/C MIX signal.
Signal output terminal.
Output terminal for chroma signal.
32 COUT
20k
Pin No. Pin name Pin description Input/output equivalent circuit
17
19 PrOUT
PbOUT
Signal output terminal.
Output terminal for color-difference signal.
21
22 PYFB
PYOUT
Signal output terminal.
Output terminal for luminance signal
(progressive type).
1
27
10
16
CTPAP
YTRAP
PYTRAP
PrTRAP
Terminal for LC resonance.
6
11
V
CC
Power supply voltage.
V
CC
is separated into 6 pin and 11 pin.
That is to say, C, MIX and Y are partitioned by 6 pin
and PY, Pb and Pr by 11 pin.
They and not connected internally.
Connect them externally when using.
4
7
9
13
20
23
26
28
GND Grounding terminal.
2 MUTE1
Mute control terminal.
C, MIX and Y are muted simultaneously by setting
MUTE to "L".
Pin No. Pin name Pin description Input/output equivalent circuit
12 MUTE2
Mute control terminal.
PY, Pb and PR are muted simultaneously by setting
MUTE to "L".
31 TEST
Test terminal.
Usually, short-circuit this terminal to GND when using it.
18 N.C.
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
10
32
31
30
29
28
27
26
25
24
22
21
20
19
18
17
23
1.5-6M
BPF
COUT CTRAP
MUTE1
CIN
GND
GND
YIN
PYIN
V
CC
GND
V
CC
PbIN
PYTRAP
PrIN
MUTE2
GND
PrTRAP
TEST
MIXOUT
MIXFB
GND
GND
GND
GND
YTRAP
YOUT
PYOUT
YFB
PYFB
PbOUT
PrOUT
N.C.
MUTE1 TEST
20k
20k
6M
LPF
12M
LPF
6M
LPF
20k
6M
LPF
CLAMP
75
Ω
6dB
75
Ω
6dB
75
Ω
6dB
75
Ω
6dB
75
Ω
6dB
75
Ω
6dB
MUTE2
CLAMP