Note For Printed Wiring Boards And Schematic Diagrams - Aiwa CX-JN10 Service Manual

6-4.

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: parts mounted on the conductor side.
x
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
Q These are omitted.
B E
Q
B C E
These are omitted.
Note on Schematic Diagram:
• 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.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• 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.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
– BD Section –
no mark : CD PLAY
– Other Sections –
no mark : FM
∗
: Impossible to measure
• 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 : TUNER (FM/AM)
E : TAPE PLAY (DECK-A)
d : TAPE PLAY (DECK-B)
G : REC
J : CD PLAY
L : AUX IN
N
: MIC INPUT
• Abbreviation
AUS : Australian model
E51 : Chilean and Peluvian models
EA : Saudi Arabia model
SP : Singapore model
TW : Taiwan model
• Circuit Boards Location
SW board
MOTOR (LD) board
CD KEY board
PANEL board
HP board
KEY board
23 23
SENSOR board
PT board
BD board
MOTOR (TB) board
TUNER PACK
DRIVER board
MAIN board
CX-JN10