Diagrams; Circuit Boards Location - Sony RCD-W222ES Service Manual
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Also See for RCD-W222ES:
- Operating instructions manual (32 pages) ,
- Specifications (2 pages) ,
- Limited warranty (1 page)
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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
/
W or less unless otherwise
4
specified.
•
%
: indicates tolerance.
•
¢
: internal component.
• C : panel designation.
• 5 : fusible resistor.
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.
• 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 MΩ).
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.
7-1. CIRCUIT BOARD LOCATION
CLAMP MOTOR board
BD board
SENSOR 2 board
SENSOR board
OUT SW board
INIT/COUNT SW board
LOAD MOTOR board
SECTION 7
DIAGRAMS
• Signal path.
F
: LINE (ANALOG)
J
: CD PLAY (ANALOG)
c : CD PLAY (DIGITAL)
I : CD REC
For printed wiring boards.
Note:
•
: 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 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.
• Indication of transistor
C
Q
These are omitted
B
C
E
B
E
These are omitted
IN SW board
LED board
POWER SW board
RM board
HP board
CONNECTOR board
CD SW board
CD-R board
DISPLAY board
• WAVEFORMS
– BD BOARD –
1
IC101 el FE
VOL/DIV : 0.05V AC
TIME/DIV : 2msec
2
IC101 ra TE
VOL/DIV : 0.1V AC
TIME/DIV : 2msec
3
IC101 rd RFDC
VOL/DIV : 0.2V AC
TIME/DIV : 1 µ sec
4
IC101 t; RFAC
VOL/DIV : 0.5V AC
TIME/DIV : 1 µ sec
5
IC101 us
33.8MHz
VOL/DIV : 1V AC
TIME/DIV : 20nsec
AC board
MAIN board
51
51
– CD-R BOARD –
1
IC101 9 TE(TP TEO)
1.5 Vp-p
0.1 Vp-p
VOL/DIV : 0.5V AC
TIME/DIV : 1msec
2
IC101 0 FE(TP FEO)
1.2 Vp-p
0.2 Vp-p
VOL/DIV : 0.5V AC
TIME/DIV : 1msec
3
IC101 rk MCLK1
4.4 Vp-p
0.6 Vp-p
34.5744MHz
VOL/DIV : 2V AC
TIME/DIV : 20nsec
4
IC101 i; EQRF (TP RFAC)
1.0 Vp-p
1.0 Vp-p
VOL/DIV : 0.5V AC
TIME/DIV : 500nsec
5
XTAL
IC201
168
3.7 Vp-p
5.8 Vp-p
33.8688MHz
VOL/DIV : 2V AC
TIME/DIV : 20nsec
6
IC204 4
5.4 Vp-p
34.5744MHz
VOL/DIV : 2V AC
TIME/DIV : 20nsec
RCD-W222ES
– MAIN BOARD –
1
IC1 ek X2
3.0Vp-p
20MHz
VOL/DIV : 1V AC
TIME/DIV : 20nsec
– DISPLAY BOARD –
1
IC760 yh OSCO
5.0Vp-p
0.42 µ sec
VOL/DIV : 2V AC
TIME/DIV : 0.2 µ sec
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