Sony HCD-GNX700 Service Manual page 52

HCD-GNX700/GNX800
• WAVEFORMS
– CD BOARD – – MAIN BOARD –
1 1
IC101 wa
TEI
0.15 Vp-p
0.2V/DIV, 0.2 msec/DIV
2 2
IC101 wd FEI
0.4 Vp-p
0.1V/DIV, 1 msec/DIV
3 3
IC101 ra
RFAC
±
0.9 0.4 Vp-p
0.2V/DIV, 0.5 µ sec/DIV
4
HCD-GNX700/GNX800
– PANEL BOARD –
1
IC401 qa IC902 is
XC-OUT
2.7 Vp-p
32.768 kHz
1V/DIV, 10 µ sec/DIV 1V/DIV, 0.2 µ sec/DIV
IC401 qd X-OUT
2.0 Vp-p
16 MHz
1V/DIV, 50 nsec/DIV
T301 5
TAPE REC only
67 Vp-p
µ
10.5 sec
50V/DIV, 10 µ sec/DIV
T301 4 TAPE REC only
82 Vp-p
10.5 µ sec
50V/DIV, 10 µ sec/DIV
• IC Block Diagram
– DRIVER Board –
IC701, 712 BA6956AN
X OUT
3.1 Vp-p
4 MHz
1 2 3
– CD Board –
IC251 BA5947FM-E2
28
27 26 25
10k
50k
Pre
Vcc
SW
1 2 3 4
52 52
– PANEL Board –
IC904 NJM2760V-TE2
TSD
IN1 1
IN2 2
CONTROL LOGIC
BUF1OUT 3
4 5 6 7 8 9
BPF2IN1 4
BPF2IN2 5
BPF3IN1 6
BPF3IN2 7
BPF4IN1 8
BPF4IN2 9
GND 10
24 23 22 21 20 19 18 17 16
50k
100k
POW
D D D
PIN3
VCC
50k
(ch3, 4)
10k 19k
POW POW
VCC VCC
50k
50k
6.5k
50k 50k
Vref
Vref PIN26
POW
VCC
D
D D
(ch1, 2)
5 6 7 8 9 10 11 12 13
20 BPF2OUT
DET 19 BPF1IN1
BPF
18 BPF1IN2
RECOUT
17
DET 16 BPF4OUT
BPF DET 15 BPF3OUT
BPF DET 14 BPF2OUT
13 BPF1OUT
BPF DET
12
NC
11 VCC
15
D
D
14