Table of Contents
Advertisement
4-5. CIRCUIT BOARDS LOCATION
tuner unit
(TU10)
DISC IN SW board
LOAD SW board
KEY board
SUB board
LIMIT SW board
MAIN board
SERVO board
RELAY board
– 37 –
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
For schematic diagrams
• 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.
•
%
: indicates tolerance.
•
¢
: internal component.
• C : panel designation.
Note: The components identified by mark ! or dotted line
with mark ! are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• 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.
F
: FM
f
: MW
J
: CD
• Abbreviation
G
: German model.
For printed wiring boards
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
®
: Through hole.
•
¢
: internal component.
• b : Pattern from the side which enables seeing.
(The other layer's 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.
• Waveforms
(MODE:PLAY)
1
0V
Approx. 200mVp-p
!¢
(TE)
IC1
2
0V
Approx. 620mVp-p
!§
(FE)
IC1
3
1.2Vp-p
!¶
IC1
(RFO)
4
2.6Vp-p
7.6µsec
&ª
(MDP)
IC501
5
5.8Vp-p
22.7µsec
*¶
(LRCK)
IC501
6
5.7Vp-p
474nsec
(¡
(BCK)
IC501
7
3.2Vp-p
16.89MHz
`⁄‚‹
IC501
(XTAI)
– 38 –
Advertisement
Table of Contents
