— 2 —
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH
MARK 0ON 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
PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
1. Check theareaof yourrepair forunsoldered orpoorly-soldered
connections. Checkthe entire board surfacefor 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
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
4. Look for parts which, through functioning, show obvious signs
of deterioration. Point them out to the customer and
recommend their replacement.
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 soldering
or unsoldering.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
TABLE OF CONTENTS
4. PRINTEDWIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS ··········································4-11
• VC-260 (CAMERA A/D CONV., TIMING
GENERATOR, CAMERA SIGNAL PROCESS,
IRIS/FOCUS/ZOOM DRIVE, DV SIGNAL PROCESS,
DV INTERFACE, RF AMP, VIDEO A/D CONV.,
LASER AVLINK, HI/CAMERA CONTROL,
MECHA CONTROL, DRUM/CAPSTAN DRIVE,
EVF VIDEO, AUDIO, IN/OUT, AUDIO A/D D/A,
STEADY SHOT, CONNECTOR, DC IN, CHARGE,
DC-DC CONVERTER)
PRINTED WIRING BOARD ·······················4-11
• VC-260 (CAMERA A/D CONV., TIMING
GENERATOR)(1/18)
SCHEMATIC DIAGRAM ····························4-15
• VC-260 (CAMERA SIGNAL PROCESS)(2/18)
SCHEMATIC DIAGRAM ····························4-17
• VC-260 (IRIS/FOCUS/ZOOM DRIVE)(3/18)
SCHEMATIC DIAGRAM ····························4-19
• VC-260 (DV SIGNAL PROCESS)(4/18)
SCHEMATIC DIAGRAM ····························4-21
• VC-260 (DV INTERFACE)(5/18)
SCHEMATIC DIAGRAM ····························4-23
• VC-260 (RF AMP)(6/18)
SCHEMATIC DIAGRAM ····························4-25
• VC-260 (VIDEO IN/OUT)(7/18)
SCHEMATIC DIAGRAM ····························4-27
• VC-260 (VIDEO A/D CONV.)(8/18)
SCHEMATIC DIAGRAM ····························4-29
• VC-260 (LASER AVLINK)(9/18)
SCHEMATIC DIAGRAM ····························4-31
• VC-260 (HI/CAMERA CONTROL)(10/18)
SCHEMATIC DIAGRAM ····························4-33
• VC-260 (MECHA CONTROL)(11/18)
SCHEMATIC DIAGRAM ····························4-35
• VC-260 (DRUM/CAPSTAN DRIVE)(12/18)
SCHEMATIC DIAGRAM ····························4-37
• VC-260 (EVF VIDEO)(13/18)
SCHEMATIC DIAGRAM ····························4-39
• VC-260 (AUDIO, IN/OUT, AUDIO A/D D/A)(14/18)
SCHEMATIC DIAGRAM ····························4-41
• VC-260 (STEADY SHOT)(15/18)
SCHEMATIC DIAGRAM ····························4-43
• VC-260 (CONNECTOR)(16/18)
SCHEMATIC DIAGRAM ····························4-45
• VC-260 (DC IN, CHARGE)(17/18)
SCHEMATIC DIAGRAM ····························4-47
• VC-260 (DC-DC CONVERTER)(18/18)
SCHEMATIC DIAGRAM ····························4-49
4-3. WAVEFORMS ······························································4-93
4-4. MOUNTED PARTS LOCATION ·································4-95
6. REPAIR PARTS LIST
6-2. ELECTRICAL PARTS LIST ········································6-17
