Circuit Boards Location - Sony CDX-F7710S Service Manual

CDX-F7710/F7710S/F7715X/F7750/F7750S

3-4. CIRCUIT BOARDS LOCATION

SENSOR board
DISPLAY board
• WAVEFORMS
— SERVO BOARD —
(CD PLAY)
4
1 IC2 uj (RFI)
IC2 4 (FEI)
0 V
Approx. 100 mVp-p
50 mV/DIV, 5 msec/DIV 0.5 V/DIV, 0.5 µ sec/DIV
2 5
IC2 6 (TEI) IC2 of (FNI2), og (FNI1)
0 V
Approx. 400 mVp-p
200 mV/DIV, 5 msec/DIV 0.5 V/DIV, 0.5 µ sec/DIV
3 6
IC2 wd (XI) IC2 oh (FPI2),
0.6 Vp-p
16.9344 MHz
0.2 V/DIV, 0.2 µ sec/DIV 0.5 V/DIV, 0.5 µ sec/DIV
CDX-F7710/F7710S/F7715X/F7750/F7750S
SERVO board
SPEAKER board
tuner unit
(TUX501)
MAIN board
RELAY board
7
IC3 ia (X1)
Approx.
1Vp-p
1.1 Vp-p
12 MHz
0.5 V/DIV, 0.2 µ sec/DIV
1.5 Vp-p
oj (FPI1)
1.5 Vp-p
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
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. (p: pF)
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.
• f : internal component.
• C : panel designation.
Note:
Note:
Les composants identifiés par
The components identi-
fied by mark 0 or dotted une marque 0 sont critiques
line with mark 0 are criti- pour la sécurité.
Ne les remplacer que par une
cal for safety.
Replace only with part piéce portant le numéro
number specified. spécifié.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• CD mechanism section (1/2), (2/2)
no mark : CD PLAY
• Main (1/4), (2/4), (3/4), (4/4) and Display sections
no mark : FM
( ) : AM/MW/LW
< > : CD PLAY
∗
: Impossible to measure
• 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.
J
: CD PLAY
F
: FM
f
: AM/MW/LW
L : BUS AUDIO
— MAIN BOARD —
1
IC550 9 (XTI)
1.1 Vp-p
8.664 MHz
0.5 V/DIV, 0.2 µ sec/DIV
2
IC303 uk (X1)
0.7 Vp-p
32.768 kHz
0.2 V/DIV, 20 µ sec/DIV
18 18
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
a : Through hole.
• : 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.
C
Q
These are omitted
B E
B E C
These are omitted
E C B
These are omitted
— DISPLAY BOARD —
3 1
IC801 i;(X0) IC901 qs (X1)
1.1 Vp-p
18.432 MHz
0.5 V/DIV, 0.1 µ sec/DIV 0.2 V/DIV, 0.2 µ sec/DIV
0.6 Vp-p
5 MHz