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51
51
RCD-W222ES
7-1. CIRCUIT BOARD LOCATION
• WAVEFORMS
– BD BOARD –
– MAIN BOARD –
– CD-R BOARD –
– DISPLAY BOARD –
IN SW board
CONNECTOR board
CD-R board
BD board
LOAD MOTOR board
INIT/COUNT SW board
OUT SW board
SENSOR board
SENSOR 2 board
CLAMP MOTOR board
LED board
HP board
CD SW board
DISPLAY board
MAIN board
AC board
POWER SW board
RM board
3
IC101
rd
RFDC
4
IC101
t;
RFAC
1
IC101
el
FE
2
IC101
ra
TE
0.1 Vp-p
VOL/DIV : 0.1V AC
TIME/DIV : 2msec
VOL/DIV : 0.05V AC
TIME/DIV : 2msec
VOL/DIV : 0.2V AC
TIME/DIV : 1
µ
sec
VOL/DIV : 0.5V AC
TIME/DIV : 1
µ
sec
VOL/DIV : 1V AC
TIME/DIV : 20nsec
5
IC101
us
0.2 Vp-p
0.6 Vp-p
1.0 Vp-p
3.7 Vp-p
33.8MHz
1
IC1
ek
X2
3.0Vp-p
20MHz
VOL/DIV : 1V AC
TIME/DIV : 20nsec
3
IC101
rk
MCLK1
4
IC101
i;
EQRF (TP RFAC)
1
IC101
9
TE(TP TEO)
2
IC101
0
FE(TP FEO)
1.5 Vp-p
VOL/DIV : 0.5V AC
TIME/DIV : 1msec
VOL/DIV : 0.5V AC
TIME/DIV : 1msec
VOL/DIV : 2V AC
TIME/DIV : 20nsec
VOL/DIV : 0.5V AC
TIME/DIV : 500nsec
VOL/DIV : 2V AC
TIME/DIV : 20nsec
5
IC201
1.2 Vp-p
4.4 Vp-p
1.0 Vp-p
5.8 Vp-p
33.8688MHz
34.5744MHz
168
XTAL
VOL/DIV : 2V AC
TIME/DIV : 20nsec
6
IC204
4
5.4 Vp-p
34.5744MHz
1
IC760
yh
OSCO
VOL/DIV : 2V AC
TIME/DIV : 0.2
µ
sec
5.0Vp-p
0.42
µ
sec
SECTION 7
DIAGRAMS
• Indication of transistor
C
These are omitted
E
B
Q
C
These are omitted
E
B
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
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.
•
%
: indicates tolerance.
•
¢
: internal component.
•
C
: panel designation.
•
5
: fusible resistor.
For printed wiring boards.
Note:
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• AC voltage readings in the bias oscillator with a level
meter.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : STOP
( ) : PLAY
<
>: REC (CD-R only)
• 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 produc-
tion tolerances.
• Circled numbers refer to waveforms.
Note:
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
• Signal path.
F
: LINE (ANALOG)
J
: CD PLAY (ANALOG)
c
: CD PLAY (DIGITAL)
I
: CD REC
Caution:
Pattern face side:
Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.