![background image](http://html.mh-extra.com/html/sony/hcd-xb88avk/hcd-xb88avk_service-manual_1329765022.webp)
– 27 –
– 28 –
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
p
: parts mounted on the conductor side.
•
®
: Through hole.
•
¢
: internal component.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
U
: B+ Line.
•
V
: 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.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal pro-
duction 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
I
: PHONO
Note: The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
• Indication of transistor
C
These are omitted
E
B
Q
C
These are omitted
E
B
IC103
@¶
MDP
1
2
3
4
5
WAVEFORMS
– CD SECTION –
IC101
#£
RFO
IC101
2
FEI
IC101
$¶
TEI
IC103
^™
RFCK
6
IC103
^º
XPCK
7
IC103
&¢
WFCK
IC103
*ª
XTAI
8
500mV/DIV, 500nsec/DIV
1.3Vp-p
200mV/DIV, 1
µ
sec/DIV
0.5Vp-p
50mV/DIV, 1msec/DIV
0.2Vp-p
7.8
µ
sec
2.5Vp-p
230
µ
sec
5Vp-p
135
µ
sec
5Vp-p
135
µ
sec
5Vp-p
16.9344MHz
2.6Vp-p
1
IC601
!™
X-OUT
– DISPLAY SECTION –
1
IC602
@¢
XTAL
– MAIN SECTION (1/5) –
1
2
IC701
!£
XT2
IC701
0
X2
– MAIN SECTION (2/5) –
8MHz
4.8Vp-p
32.768kHz
5.2Vp-p
8MHz
4Vp-p
8MHz
5.5Vp-p
Содержание HCD-XB88AVK
Страница 4: ... 4 Front Panel 1 7 8 9 º ª 2 3 4 6 º ª º ª º º º ª 5 SECTION 1 GENERAL ª ...
Страница 29: ... 41 42 6 10 SCHEMATIC DIAGRAM MAIN 3 5 SECTION See page 35 for Printed Wiring Board HCD XB88AVK XB88K ...
Страница 30: ... 43 44 6 11 SCHEMATIC DIAGRAM MAIN 4 5 SECTION See page 35 for Printed Wiring Board HCD XB88AVK XB88K ...
Страница 33: ... 49 50 6 14 SCHEMATIC DIAGRAM DECK SECTION See page 81 for IC Block Diagrams HCD XB88AVK XB88K Page 45 Page 45 ...
Страница 35: ... 53 54 6 16 SCHEMATIC DIAGRAM POWER SECTION See page 81 for IC Block Diagrams HCD XB88AVK XB88K ...
Страница 39: ... 61 62 6 20 SCHEMATIC DIAGRAM TC CD PANEL 1 SECTION HCD XB88AVK XB88K Page 55 Page 55 ...
Страница 40: ... 63 64 HCD XB88AVK XB88K 6 21 SCHEMATIC DIAGRAM HP MIC SECTION See page 81 for IC Block Diagrams ...
Страница 43: ... 69 70 6 24 SCHEMATIC DIAGRAM CD MOTOR SECTION See page 81 for IC Block Diagrams HCD XB88AVK XB88K Page 40 ...
Страница 44: ... 71 72 6 25 PRINTED WIRING BOARD TRANS SECTION See page 16 for Circuit Boards Location HCD XB88AVK XB88K ...
Страница 45: ... 73 74 6 26 SCHEMATIC DIAGRAM TRANS SECTION HCD XB88AVK XB88K ...