– 41 –
– 42 –
– 39 –
– 40 –
ZS-D55
r
Waveforms (CD Section)
1
IC701
ed
(RFO)
PLAY MODE
VOLT/DIV : 200 m V AC
TIME/DIV : 0.5
µ
sec
0.7 – 1.1
Vp-p
2
IC701
6
(FEO)
PLAY MODE
VOLT/DIV : 0.2 V AC
TIME/DIV : 0.2 msec
3
IC701
rg
(TO)
PLAY MODE
VOLT/DIV : 0.2 V AC
TIME/DIV : 0.5 msec
4
IC702
wl
(PCO)
VOLT/DIV : 0.5 V AC
TIME/DIV : 1
µ
sec
5
IC702
r;
(LRCKI)
VOLT/DIV : 1 V AC
TIME/DIV : 5
µ
sec
6
IC702
ua
(XTAO)
VOLT/DIV : 0.5 V AC
TIME/DIV : 20 nsec
0.6 Vp-p
0.7 Vp-p
2.2 Vp-p
5.75
µ
sec
4.8 Vp-p
22.75
µ
sec
2.0 Vp-p
16.44 MHz
Note:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
•
: B+ Line.
• Power voltage is dc 12V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD
6-6. SCHEMATIC DIAGRAM (CD SECTION)
r
Waveforms (MAIN Section)
1
ERASE HEAD
ATT : 1/10
VOLT/DIV : 1 V AC
TIME/DIV : 5
µ
sec
2
3
4
Q304 COLLECTOR
VOLT/DIV : 5 V AC
TIME/DIV : 5
µ
sec
5
Q302, 303 EMITTER
VOLT/DIV : 5 V AC
TIME/DIV : 5
µ
sec
T301
ATT : 1/10
VOLT/DIV : 1 V AC
TIME/DIV : 5
µ
sec
T301
VOLT/DIV : 2 V AC
TIME/DIV : 5
µ
sec
25.8 Vp-p
16.65
µ
sec
61 Vp-p
16.65
µ
sec
13.7 Vp-p
16.65
µ
sec
17.6 Vp-p
16.65
µ
sec
17.6 Vp-p
16.65
µ
sec