1919
HCD-RG60
SECTION 6
DIAGRAMS
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.
•
¢
: internal component.
• C : panel designation.
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
• Indication of transistor.
Note:
The components identified by mark ! or
dotted line with mark ! 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 produc-
tion tolerances.
no mark : FM
( ) : CD
[ ] : TAPE
• 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 : AM
E : PB (DECK A)
d : PB (DECK B)
G : REC (DECK B)
J : CD
c : digital out
THIS NOTE IS COMMON 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
6-1. CIRCUIT BOARD LOCATION
• WAVEFORMS
1
IC102 wf STOP MODE
4.1Vp-p
2
IC401 qd STOP MODE
3
IC401 qa STOP MODE
4.0Vp-p
3.0Vp-p
222ns
(4.5MHz)
63ns
(16.0MHz)
31
µ
s
(32.768kHz)
1 IC701 4 STOP MODE
5.3Vp-p
200ns
(5MHz)
– MAIN BOARD –– PANEL BOARD –
1 IC101 yj
CD PLAY MODE
6.4Vp-p
59ns
(16.9344MHz)
1.2Vp-p
2 IC101 ta
CD PLAY MODE
3 IC101 ra
CD PLAY MODE
4 IC101 el
CD PLAY MODE
400nsec/div
approx 200mVp-p
approx 170mVp-p
– BD BOARD –
TRANS board
MOTOR board
ADDRESS SENSOR board
DRIVER board
BD board
SENSOR board
SURROUND boar
VIDEO OUT board
SUB TRANS board
MAIN board
POWER AMP board
PANEL board
KEY board
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