Sony HCD-RG60, Руководство по обслуживанию

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HCD-RG60
SECTION 6
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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 M
Ω
).
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.
C E
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 board
VIDEO OUT board
SUB TRANS board
MAIN board
POWER AMP board
PANEL board
KEY board