Printed Wiring Boards - Cd Section - Sony CFD-V3 Service Manual

CFD-V3/V7/V7L
Ver 1.4 2003.06
6-17. PRINTED WIRING BOARD – CD SECTION –
1 2
OPTICAL PICK-UP
CD BOARD
A
M701
SPINDLE MOTOR
M
B
C
D
E
Refer to page 14 for Circuit Boards Location.
z
3 4
BLOCK
KSS-213C
R707
M
M702
SLED MOTOR
CNP702
A
A
FB701
NEW
TYPE
12 13
1-680-943- (12) (13)
FORMER
TYPE
Semiconductor
z
Location
Ref. No. Location
IC701 D-2
IC702 A-3
Q701 B-2
Note:
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
• : internal component.
f
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 / W or less unless otherwise
4
specified.
• : internal component.
f
Note:
Note:
The components identi- Les composants identifiés par
fied by mark 0 or dotted une marque 0 sont critiques
line with mark 0 are criti- pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part piéce portant le numéro
number specified. spécifié.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM (RADIO SECTION),
TAPE PLAY (TAPE SECTION)
( ) : AM (RADIO SECTION),
REC (TAPE SECTION)
• 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.
• Signal path.
MAIN BOARD
F
: FM
CN802
f
: AM
(Last digit:-11)
E
: PB
a : REC
MAIN BOARD
J : CD
CN802
• Abbreviation
(Last digit:-12)
CND : Canadian
IT : Italian
CET : East European & Russian
SP : Singapore
AR : Argentina
AUS : Australian
TW : Taiwan
KR : Korean
E4 : 110-120V AC/220-240V AC Changeable
30 30
• Waveforms
– CONTROL/POWER SECTION –
1
3.1Vp-p
17.95 µsec
VOLT/DIV : 1 V AC
Q301 C
TIME/DIV : 5 µsec
2
30Vp-p
17.95 µsec
VOLT/DIV : 1 V AC
T301
(ATT : 1/10)
TIME/DIV : 5 µsec
– CD SECTION –
3
1
(PLAY MODE)
0.7–1.0Vp-p
(LPC ON)
IC701 4 IC701 qd
VOLT/DIV : 0.5 V AC
(FE)
RF TIME/DIV : 0.5 µsec
4
2
(PLAY MODE)
1.1Vp-p
29.53nsec
IC701 rk IC701 qg
VOLT/DIV : 0.5 V AC VOLT/DIV : 20 V AC
XOUT (TE)
TIME/DIV : 0.2 µsec TIME/DIV :1 msec
0.6Vp-p
VOLT/DIV : 1 V AC
TIME/DIV : 1 msec
0.6Vp-p