Diagrams; Circuit Boards Location - Sony CDP-CX455 Service Manual

SECTION 6

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. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in and 1 / W or less unless otherwise
4
specified.
• : internal component.
¢
• C : panel designation.
Note: Note:
The components identi- Les composants identifiés par
fied by mark ! or dotted une marque ! sont critiques
pour la sécurité.
line with mark ! are criti-
cal for safety. Ne les remplacer que par une
Replace only with part piéce por tant 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.
no mark : STOP
• Voltages are taken with a VOM (Input impedance 10 M ).
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
c : digital out
• Abbreviation
CND : Canadian model
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : 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.
• Indication of transistor
C
Q
These are omitted
B E
B C E
These are omitted
Waveforms
1
IC104 yd XO
3.8Vp-p
59ns
1V/DIV, 20ns/DIV
2
IC103 qg (RFAC)
(PLAY) 1.3Vp-p
500mV/DIV, 1 s/DIV
3
IC101 ra TE
1.65V
APPROX 500mVp-p (PLAY)
200mV/DIV, 20ms/DIV
4
IC101 el FE
1.65V
APPROX 500m Vp-p (PLAY)
200mV/DIV, 4ms/DIV
5
IC101 wg MDP
2.1 Vp-p
7.5 s
1V/DIV, 4 s/DIV
6
IC501 ek X2
3.5 Vp-p
62.5 ns
1V/DIV, 20ns/DIV

6-1. Circuit Boards Location

D. SENS (IN) board
DISP board
D. SENS
(OUT) board
KEYBOARD board
T. SENS board
29 29
LED board
MAIN board
D. MOTOR board
DOOR SW board
JOG board
BD board
LOADING SW board
LOCK SW board
CDP-CX455
TRANS board
L. T. MOTOR board