– 35 –
– 36 –
– 37 –
MZ-R37
6-6. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 44 for IC Block Diagrams.
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.
•
%
: indicates tolerance.
•
A
: B+ Line.
• Power voltage is dc 4.5 V and fed with regulated dc power
supply from external power voltage jack.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PB
(
) : REC
∗
: Impossible to measure
• 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
: PB (digital)
c
: REC (digital)
Note:
The components identi-
fied by mark
!
or dotted
line with mark
!
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
• Waveforms
1
2
3
4
Approx. 0.5Vp-p
IC501
@ª
IC601
!¡
2.8Vp-p
IC501
#•
IC601
!¶
2.6Vp-p
22.5MHz
1.0±0.3Vp-p
13.4msec
VOLT/DIV : 1V AC
TIME/DIV : 20nsec
VOLT/DIV : 0.5V AC
TIME/DIV : 1
µ
sec
VOLT/DIV : 0.1V AC
TIME/DIV : 0.1msec
VOLT/DIV : 1V AC
TIME/DIV : 5msec
(Page 42)
(Page 38)
(Page 38)
(Page 43)
(Page 42)
(Page 38)
(Page 38)
(Page 38)
