Diagrams - Aiwa CX-JDS20 Service Manual

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.
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
• f : internal component.
• C : panel designation.
Note: The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
No mark: CD STOP
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : TUNER
J : CD
d
: AUX
E
: PB (TAPE)
a : REC (TAPE)
N : MIC
• Abbreviation
AUS : Australian model.
E51 : Chilean and Peruvian model.
MX : Mexican model.
RU : Russian model.
• Waveforms
– DS-PANEL Board –
1
IC604 0 (XCIN)
1.2 Vp-p
30.4 µ s
500 mV/DIV, 10 µ s/DIV
2
IC604 qg (XIN)
2.3 Vp-p
62.5 ns
1 V/DIV, 40 ns/DIV
CX-JDS20/JDS50
SECTION 6

DIAGRAMS

For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side B) the parts face are indicated.
• Indication of transistor.
C
Q
These are omitted.
B E
B C E
These are omitted.
• Circuit Boards Location
DS-PANEL board
DS-VOL board
DS-PAI/HP/MIC board
DS-MAIN board
21 21
CX-JDS20/JDS50
DS-CONN board
DS-AMPLIFIER board
BD board
DS-POWER board