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HCD-EX600/EX700/EX900
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
•
: 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
(SIDE B)
from the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(SIDE A)
the parts face are indicated.
• Abbreviation
RU
: Russian model
• Circuit Boards Location
BD76 board
LOADING board
PANEL board
HCD-EX600/EX700/EX900
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 1/4 W or less unless otherwise
specifi ed.
•
: Internal component.
f
• 2 : Nonfl ammable resistor.
• C : Panel designation.
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– BD76 Board –
no mark : CD PLAY
– Other Boards –
no mark : TUNER (FM/AM)
: Impossible to measure
*
• Voltages are taken with VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: TUNER (FM)
F
f
: TUNER (AM)
J
: CD
: USB
E
: DVD/PC IN
q
• Abbreviation
RU
: Russian model
TUNER board
REGULATOR board
(EX700/EX900)
EFX-MODULE board
AMP SMPS board
• Waveforms
– BD76 Board –
1
IC101 2 (RFOUT)
(CD play mode)
0.6 to 1.5 Vp-p
200 mV/DIV, 500 nsec/DIV
2
IC101 us (XOUT)
2.6 Vp-p
16.934 MHz
1 V/DIV, 20 nsec/DIV
3
IC901 7 (CF2)
3.1 Vp-p
12 MHz
1 V/DIV, 20 nsec/DIV
20
20
– PANEL Board –
1
IC302 qd (Sub Clock)
3.3 Vp-p
32.768 kHz
1 V/DIV, 10 sec/DIV
2
IC302 qh (Main Clock)
2.9 Vp-p
20 MHz
1 V/DIV, 50 nsec/DIV
– TUNER Board –
1
IC502 ql (X2)
0.6 Vp-p
32.768 kHz
200 mV/DIV, 5 sec/DIV
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