Service manual

4343
6-5. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
C
B
These are omitted.
E
Q
B
These are omitted.
CE
Q
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• 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
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
• Indication of transistor.
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
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
• U : B+ Line.
• V : B– Line.
• 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
J : CD PLAY
E : MD PLAY
j : MD REC (ANALOG)
l : MD REC (DIGITAL)
d : TAPE IN (PLAY)
G : TAPE OUT (REC)
• Abbreviation
HK : Hong Kong model
KR : Korean model
TW :Taiwan model
• Circuit Boards Location
MD DIGITAL board
AMP board
TUNER UNI
T
SP board
POWER board
PANEL board
SW board
BD (MD) board
BD (CD) board
LOADING board
MAIN board
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.