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Refer to page 25 for IC Block Diagrams.
6-4. SCHEMATIC DIAGRAM
MZ-E44/E45
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Waveforms
2
1
4
IC601 $ª
VOLT/DIV : 500mV AC
TIME/DIV : 20nsec
3
800mVp-p
2.7Vp-p
23
µ
sec
2.6Vp-p
482nsec
2.0 Vp-
p
16.9344 MHz
IC601 $¡
VOLT/DIV : 500mV AC
TIME/DIV : 200nsec
IC601 #ª
VOLT/DIV : 1V AC
TIME/DIV : 10 µsec
IC501 @•
VOLT/DIV : 200mV AC
TIME/DIV : 5 µsec
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.
• C : panel designation.
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 1.5V 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 are taken with a VOM (Input impedance 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.3.0
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).