Sony HCD-GNX80 - Page 50

HCD-GNX80
5050
HCD-GNX80
•WAVEFORMS
– MAIN BOARD –– CD BOARD – – PANEL BOARD –
2.7 Vp-p
32.768 kHz
2.0 Vp-p
16 MHz
1V/DIV, 10 µ sec/DIV
1V/DIV, 50 nsec/DIV
10.5 µ sec
50V/DIV, 10 µ sec/DIV
50V/DIV, 10
µ sec/DIV
67 Vp-p
10.5 µ sec
82 Vp-p
1 IC401 qa XC-OUT
2 IC401 qd X-OUT
3 T301 5 TAPE REC only
4 T301 4 TAPE REC only
0.15 Vp-p
0.2V/DIV, 0.2 msec/DIV
0.1V/DIV, 1 msec/DIV
0.9 ± 0.4 Vp-p
0.2V/DIV, 0.5 µ sec/DIV
0.4 Vp-p
1 IC101 wa TEI
2 IC101 wd FEI
3 IC101 ra RFAC
3.1 Vp-p
4 MHz
1V/DIV, 0.2 µ sec/DIV
1 IC902 is X OUT
– DRIVER Board –
IC701, 712 BA6956AN
• IC Block Diagram
– CD Board –
IC251 BA5947FM-E2
1 2 3 4 5 6 7 8 9
CONTROL LOGIC
TSD
VREF
OUT2 OUT1
RNF
VM
VCC
FIN
GND
RIN
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
10
LEVEL
SHIFT
F
R
R
F
R
F
F
19k
6.5k
50k
50k
100k
50k
PIN3
10k
Vref
50k 50k
PIN26
(ch1, 2)
POW
VCC
(ch3, 4)
SW
Pre
Vcc
INTER
FACE
INTER
FACE
INTER
FACE
R
F
50k 50k
POW
VCC
MUTE
Vref
POW
VCC
POW
VCC
R
F
10k
CH1OUTF
CH1OUTR
CH2OUTF
CH2OUTR
POWVCC
CNF4
GND
GND
CH2RIN
CH2FIN
CH1RIN
CH1FIN
SW
OPIN+
OPIN-
CH4OUTR
CH4OUTF
CH3OUTF
CH3OUTR
POWVCC
MUTE
GND
GND
CH3RIN
CH3FIN
CH4IN
CH4CAPA
OUTVREF
DPOUT
TREVCC
D
D
D
D
D
D
D
D
– PANEL Board –
IC904 NJM2760V-TE2
BPF1IN2
DET
IN1
1
IN2
2
BPF2IN1
4
BPF2IN2
5
18
BPF2OUT
15
BPF1IN1
19
BPF2OUT
20
BPF DET
BPF3IN1
6
BPF3IN2
7
BPF3OUT
14
BPF DET
BPF4IN1
8
BPF4IN2
9
BPF4OUT
13
BPF DET
GND
10
NC
12
BUF1OUT
3
VCC
11
RECOUT
17
BPF1OUT
16
BPF
DET