Sony CPD-E220 - Manual (Page 16)

5-7
5-8
5-4
.
SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
Note: •
All capacitors are in µF unless otherwise noted. (pF: µµF) Capacitors without voltage indication are all 50 V.
•
Indication of resistance, which does not have one for rating electrical power, is as follows.
Pitch: 5 mm Rating electrical power 1/4 W (CHIP : 1/10 W)
•
All resistors are in ohms.
•
f
:
nonflammable resistor.
•
F
:
fusible resistor.
•
f
:
internal component.
•
p
:
panel designation, and adjustment for repair.
•
All variable and adjustable resistors have characteristic curve B, unless otherwise noted.
•
e
:
earth-ground.
•
E
:
earth-chassis.
•
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.
•
Circled numbers are waveform references.
•
s
:
B
+ bus.
•
S
:
B
– bus.
•
When replacing components identified by
]
, make the
necessary adjustments indicated. (See page 3-1)
•
When replacing the part in below table, be sure to perform the related adjustment.
•
Divided circuit diagram One sheet of D board circuit diagram is divided into four sheets, each having the code D-
a
to D-
d
. For example, the
destination ab1 on the D-
a
sheet is connected to ab1 on the
D-
b
sheet. b
1
a
Ref. No. Circuit diagram division code
Note:
The components identified by shading and mark 0
are critical for safety. Replace only with part
number specified.
Note:
Les composants identifiés par un tramé et une marque
0
sont critiques pour la sécurité. Ne les
remplacer que par une pièce portant le numéro spécifié.
Schematic diagram
Board
lllll
H
(1)
Schematic Diagram of H Board
1
A B C D
2
7
6
5
4
3
1 2 3 4
P701 4P
MENU GND
ORANGE/LED GREEN/LED
R709 17.4k 1%
R705 6.19k
R702 10.2k 1%
H
(USER CONTROL)
6
3
5 4
2
R706 3.83k
R701 2.15k 1%
1
LED701
LT6463-23-D51
SW701
B-SS3562<NH.>-H..-EPS05
(POWER)
TO D-a BOARD CN901
MENU
(h)
USER CONTROL
HV Regulator Circuit Check HV Hold-down Circuit Check Beam Current Protector Circuit Check
Part Replaced (
]
)
D board
IC502,
T501 (FBT)
D board
D538,
R521,
T501 (FBT)
D board
IC901,
R949,
T501 (FBT)