Sony DVCAM DSR-50, Руководство по обслуживанию

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1. Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly transis-
tors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recom-
mend their replacement.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
5. Check the B+ voltage to see it is at the values specified.
6. Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C
during repairing.
• Do not touch the soldering iron on the same conductor of
the circuit board (within 3 times).
• Be careful not to apply force on the conductor when sol-
dering or unsoldering.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED
LINE WITH MARK
0
ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
PHONES Stereo phone jack
–
∞
to –19 dBu, adjustable
DC IN 12V XLR 4-pin, male, 12 V
Control
CONTROL Stereo mini-minijack
REMOTE Stereo minijack
(Edge High, Edge Low, Level
High, Level Low) (Tally)
CONTROL S Stereo minijack
General
Power requirements
DC12 to 17 V, more than 2.0 A
(4.0 A at the peak)
Power consumption
15 W (during playback)
Operating temperature
5
°
C to 40
°
C
(41
°
F to 104
°
F)
Storage temperature
–20
°
C to +60
°
C
(–4
°
F to +140
°
F)
Dimensions Approx. 279
×
99
×
315 mm
(11
×
4
×
12 1 /
2
inches)
(w/h/d, including projecting parts
and controls)
Mass Approx. 3.9 kg (8 lb 10 oz)
Supplied accessories
LCD protection board (1)
(installed at the factory)
Cleaning cassette (1)
Operating instructions (1)
Design and specifications are subject to change
without notice.
183.3 (7 1 /
4
)
289 (11
1
/ 2
)
247 (9 3 /
4
)
92.5 (3
3
/ 4
)
22 (
7
/ 8
)
Unit: mm (inches)
279 (11)