Schematic Diagrams And Printed Wiring Boards; Circuit Boards Location - Sony CPD CPD-520GS Service Manual

5-3. CIRCUIT BOARDS LOCATION

Note: The components identified by shading and mark
D A2
! are critical for safety. Replace only with part
number specified.
Note: Les composants identifiés par un tramé et une
marque ! sont critiques pour la sécurité. Ne les
G
remplacer que par une pièce portant le numéro
spécifié.
L2
• All voltages are in V.
• Readings are taken with a 10 M digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production
tolerances.
• * : Can not be measured.
H6 • Circled numbers are waveform references.
s
• : B + bus.
H5
S
J • : B – bus.
Terminal name of semiconductors in silk screen
5-4. SCHEMATIC DIAGRAMS AND PRINTED
printed circuit ( * )
WIRING BOARDS
Device Printed symbol Terminal name
Collector
1
Transistor
Note:
Base Emitter
All capacitors are in µF unless otherwise noted. (pF: µµF)
Collector
Capacitors without voltage indication are all 50 V. 2 Transistor
Base Emitter
Indication of resistance, which does not have one for rating
electrical power, is as follows. 3 Cathode
Diode
Anode
Pitch: 5 mm
Cathode
Rating electrical power 1/4 W (CHIP : 1/10 W) 4
Diode
Anode (NC)
• All resistors are in ohms.
Cathode
f
5
Diode
• : nonflammable resistor.
Anode (NC)
Ï
• : fusible resistor.
Common
¢
• : internal component. 6 Diode
p
Anode Cathode
• : panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, Common
7
Diode
Anode Cathode
unless otherwise noted.
e
Common
• : earth-ground.
E 8
Diode
• : earth-chassis.
Anode Anode
[
• The components identified by in this basic schematic diagram
Common
9
have been carefully factory-selected for each set in order to Diode
Anode Anode
satisfy regulations regarding X-ray radiation.
Common
Should replacement be required, replace only with the value 0 Diode
Cathode Cathode
originally used.
]
• When replacing components identified by , make the Common
!¡
Diode
necessary adjustments indicated. (See page 3-1)
Cathode Cathode
• When replacing the part in below table, be sure to perform the
Anode Cathode
!™ Anode
Diode Anode
related adjustment.
Cathode Anode
]
Part replaced ( ) Transistor Source
!£
Drain
(FET) Gate
HV Regulator D Board IC901, T902
G
Source
Circuit Check • Mounted D board Transistor
!¢ Drain
(FET) Gate
HV Protector D Board Q660, Q661, D916, D935,
D
Transistor Source
Circuit Check C924, R665, R667, R940, !∞
Drain
(FET)
Gate
R980, T902
S
• Mounted D board Emitter
!§
Transistor Collector
G Board PH680, Q680, Q683, D680, Base
R680, R685, R686, R687,
– Discrete semiconductot
R688, R689
(Chip semiconductors that are not actually used are included.)
• Mounted G board
Beam Current D Board IC901, D904, D907, D908,
Protector Circuit R011, R908, R909, R921,
Check R925, R926, R929, R930,
T902
• Mounted D board
5-9
D
-COM,
DEFLECTION
— D BOARD (Conductor Side) —
1 2
A
Circuit
B
C
D
D D
G
S S
D
G G
S
E
Ver.1.5
5-10
• D BOARD SEMICONDUCTOR LOCATION
IC 2
Q660 D–2
2
Q661 D–2
( Conductor ) ( Component )
3 4
Side Side Q701 D–1 D–4 –
IC001 E–2 Q703 C–1 C–4 –
Q704 C–1 C–4 –
IC002 E–3
Q705 C–1 C–4 –
IC003 D–2 D–3
IC004 E–2 Q706 D–1 D–4 –
Q707 D–3 2
IC005 D–3
Q708 C–1 C–4 –
IC006 E–1 E–4
1
Q901 C–2
IC007 D–3
Q902 A–3 2
IC008 D–1 D–3
Q904 C–2 1
IC009 D–2
2
Q905 C–3
IC010 E–4
Q908 D–2 D–3 –
IC011 E–1 E–4
Q909 C–2 C–3 –
IC013 E–3
2
Q911 D–3
IC502 A–4 A–1
IC505 D–3
IC701 D–1 D–4
DIODE
IC702 E–4 E–1
IC703 E–4 ( Component )
Side *
IC901 A–2
7
D004 E–2
D009 E–2 3
TRANSISTOR D010 E–2 3
7
D012 E–2
( ) ( )
Conductor Component
* D013 E–2 7
Side Side
7
Q001 D–4 2 D014 E–2
7
1 D015 E–2
Q003 D–1
D016 E–2 7
Q004 D–4 2
6
Q005 E–1 1 D019 E–1
1 D020 E–4 7
Q006 D–3
D025 D–4 3
Q007 D–3 2
6
Q501 A–3 1 D026 E–2
1 D027 E–2 6
Q502 B–3
D028 E–2 6
Q503 A–3 1
6
1 D029 E–2
Q504 D–4
1 D032 D–2 3
Q505 D–4
D035 D–3 8
Q506 D–4 D–1 –
3
D050 E–1
Q507 B–4 B–1 –
D501 B–4 3
Q508 C–4 C–1 –
D502 B–4 B–1 –
Q509 D–3 1
3
1 D503 D–4
Q510 C–3
D504 D–4 D–1 –
Q511 A–3 A–2 –
Q512 D–2 2 D505 C–3 C–1 –
1 D506 B–3 B–2 –
Q517 D–4
D507 B–3 B–2 –
Q522 D–2 D–3 –
Q523 D–2 D–2 – D508 B–3 B–2 –
D509 D–4 D–1 –
Q524 D–3 D–2 –
D510 C–3 C–2 –
Q525 D–3 D–2 –
Q526 D–3 D–2 – D511 B–3 B–2 –
D512 C–4 C–1 –
Q527 C–3 C–2 –
D513 E–1 3
Q528 C–3 C–2 –
: Refer to Terminal name of semiconductors in silk screen printed circuit (see page 5-9)
*
— D BOARD (Component Side) —
D514 A–4 A–1 –
D516 D–2 3
1
D517 D–2 3
3
D518 A–3
D519 B–4 B–1 –
D520 B–3 B–2 –
3
D521 B–3
D660 D–2 3
D701 D–4 3
3
D704 D–4
D705 D–1 3
A
D706 E–4 3
D709 E–4 E–1 –
D713 C–1 C–4 –
D714 C–1 C–4 –
D715 C–1 C–4 –
D718 D–4 3
D720 C–2 C–3 –
D721 D–1 D–4 –
D901 C–3 3
3
D902 A–2
D903 A–2 A–2 –
D904 A–2 3
3
D905 A–2
D906 A–2 3
D907 A–2 3
B
3
D908 A–2
D909 C–2 3
D910 B–2 B–3 –
3
D911 C–3
D913 A–3 3
D915 A–2 A–2 –
D916 B–2 B–3 –
D917 A–2 A–3 –
D919 A–2 A–2 –
D921 E–3 3
D922 A–2 3
3
D923 A–2
D935 B–2 3
D1092 E–3 6
3
D1501 D–3
C
D1502 D–2 3
D1503 D–2 3
CRYSTAL
( Conductor ) ( Component )
Side Side
X001 D–3 D–2
D
E
NOTE:
The circuit indicated as left contains high voltage of over
600 Vp-p. Care must be paid to prevent an electric shock in
inspection or repairing.
5-11
2 3 4
5-12