TCM-900DV
8
z
Waveforms
VOLT/DIV : 1 V AC
TIME/DIV : 0.2
VOLT/DIV : 1 V AC
TIME/DIV : 10
– MAIN SECTION (1/3) –
– MAIN SECTION (3/3) –
– SW SECTION –
– MAIN SECTION (2/3) –
Note on Schematic Diagram: MAIN SECTION
• 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.
•
f
: internal component.
•
C
: panel designation.
Note:
Note:
The components identi-
Les composants identifiés
fied by mark
0
or dotted par une marque
0
sont cri-
line with mark
0
are cri- tiques pour la sécurité.
tical for safety.
Ne les remplacer que par
Replace only with part
une piéce portant le
number specified.
numéro spécifié.
•
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 3V 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 (DPC OFF)
(
)
: REC
<
>
: PLAY (DPC AUTO)
• 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.
• Signal path.
E
: PB
a
: REC
VOLT/DIV : 1 V AC
TIME/DIV : 0.2
SECTION 4
DIAGRAMS
VOLT/DIV : 1 V AC
TIME/DIV : 0.2
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