Sony MZ-E55 - Schematic Diagram

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MZ-E55
6-4. SCHEMATIC DIAGRAM
r
Refer to page 26 for IC Block Diagrams.
r
Waveform.
1
IC501 @•
5
2 6
3 7
4 8
VOLT/DIV : 200 mV AC
TIME/DIV : 5 µsec
IC901 !∞
VB
IC601 #ª
IC901 @¡
DI
IC601 $¡
IC901 @™
PWMI
IC601 $ª
VOLT/DIV : 1 V AC
TIME/DIV : 10 µsec
VOLT/DIV : 500 mV AC
TIME/DIV : 200 nsec
VOLT/DIV : 500m V AC
TIME/DIV : 20 nsec
VOLT/DIV : 0.1 V AC
TIME/DIV : 2 µsec
VOLT/DIV : 20 mV AC
TIME/DIV : 2 µsec
VOLT/DIV : 2 V AC
TIME/DIV : 2 µsec
VOLT/DIV : 1 V AC
TIME/DIV : 2 µsec
IC551 !∞
L1
743 mVp-
p
2.7 Vp-p
23
µ sec
2.6 Vp-p
482 nsec
2.0 Vp-
p
16.9344 MHz
269 mVp-p
5.76
µ
sec
63 mVp-p
5.78
µ sec
7.9 Vp-p
5.56
µ sec
3.2 Vp-p
5.68
µ sec
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
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 ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PLAY
• Voltages and currents are taken with a VOM (Input im-
pedance 10 MΩ).
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 : PLAY
*Note:
Use R1001 only with Ver.3 of
microprocessor (IC801).
Using R1001 with other micro-
processor versions will cause
operating errors so be sure to
remove it.
You can check the version with
Test Mode (page 7).