Table of Contents
Advertisement
Note on Schematic Diagram:
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
/
W or less unless otherwise
4
specified.
•
¢
: internal component.
• C : panel designation.
Note:
Note:
The components identi-
Les composants identifiés par
fied by mark ! or dotted
une marque ! sont critiques
line with mark ! are criti-
pour la sécurité.
cal for safety.
Ne les remplacer que par une
piéce por tant le numéro
Replace only with part
spécifié.
number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
no mark : STOP
(
) : Play the test disk (TDYS-1)
<
> : REC
∗
: Can not be measured.
• 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.
• Signal path.
E
: PB
: REC
p : PB (digital out)
l : REC (digital in)
Note on Printed Wiring Boards:
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: parts mounted on the conductor side.
p
•
®
: Through hole.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
parts face are indicated.
• Indication of transistor
C
Q
These are omitted
B
E
B
C E
These are omitted
WAVEFORMS
– BD (1/2) SECTION –
1
0.46Vp-p
IC101 1, 2 (I, J) (PLAY mode)
2
0.1Vp-p
IC101 4 (A) (PLAY mode)
3
0.06Vp-p
IC101 8, 9 (E, F) (PLAY mode)
– BD (2/2) SECTION –
4
3.1Vp-p
22.581MHz
IC121 !§ (OSCI)
5
3.2Vp-p
44.1kHz
IC121 @¶ (LRCK)
6
3.8Vp-p
2.822MHz
IC121 @• (XBCK)
7
3.8Vp-p
11.29MHz
IC121 @ª (FS256)
8
3.2Vp-p
176.4kHz
IC121 (º (FS4)
33
33
MDS-PC2
– MAIN SECTION –
1
3.2Vp-p
10MHz
IC701 !£ (XOUT)
2
3.8Vp-p
44.1kHz
IC201 !™ (SYSCLK)
3
3.4Vp-p
2.822MHz
IC201 !¶ (LRCK1)
4
3.0Vp-p
22.581MHz
IC201 !§ (BCK)
– PANEL SECTION –
1
3.9Vp-p
2.4MHz
IC901 %• (OSCO)
Advertisement
Table of Contents
