Sony SAL135F28 Service Manual ▷ View online
1-2
SAL135F28 (STF 2.8(T4.5)/135) (135mm F2.8 [T4.5] STF)
1-4.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety checks before releasing the set to the customer.
1.
Check the area of your repair for unsoldered or poorly-soldered 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 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-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
PUBLISHED BY SONY.
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
0
SUR 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.
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.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
Replace only with the same or equivalent type.
1-3
SAL135F28 (STF 2.8(T4.5)/135) (135mm F2.8 [T4.5] STF)
1-5.
TROUBLESHOOTING
1-5-1. Aperture Trouble
Ver 1.2 2007.01
NG
NG
OK
OK
OK
NG
NG
NG
NG
OK
NG
OK
Check operation of
the preset ring.
Replace the
defective part.
Check operation of the
preset ring, and replace
the defective part.
Perform the aperture
diameter adjustment.
(See page 4-17.)
Perform the aperture
diameter check.
(See page 4-13.)
Check the iris
operation of iris
control block.
Function NG
F No. NG
Aperture trouble
Replace the defective part.
Replace the defective part.
END
Perform the aperture
diameter check.
(See page 4-13.)
Replace the
defective part.
A aperture
M aperture
Check operation of
the M aperture
operation ring.
Check the iris
operation of M iris
control block.
1-4
SAL135F28 (STF 2.8(T4.5)/135) (135mm F2.8 [T4.5] STF)
1-5-2. Focus Trouble
NG
OK
OK
OK
OK
NG
NG
NG
NG
OK
Check the operation
again.
Replace the defective part
or apply the grease.
Function NG
Position NG
Focus trouble
Check the distance
scale tube, focus ring,
fixed sleeve, and
2 group move
frame block.
END
Check pattern
of the main flexible unit.
Clean the pattern of the
main flexible unit.
Replace the
main flexible unit.
Check the position of
contact piece and
deformation of terminal
of brush
(for focus ring).
Adjust the position of contact
piece of brush (for focus ring),
or replacethe brush
(for focus ring).
Perform the focus
brush position
adjustment and
pattern check.
(See page 4-33.)
2-1
SAL135F28 (STF 2.8(T4.5)/135) (135mm F2.8 [T4.5] STF)
Cut and remove the part of gilt
which comes off at the point.
(Be careful or some
pieces of gilt may be left inside)
which comes off at the point.
(Be careful or some
pieces of gilt may be left inside)
2. DISASSEMBLY
NOTE FOR REPAIR
• Make sure that the flat cable and flexible board are not cracked of bent at the terminal.
Do not insert the cable insufficiently nor crookedly.
• When remove a connector, dont’ pull at wire of connector. It is possible that a wire is snapped.
• When installing a connector, dont’ press down at wire of connector.
It is possible that a wire is snapped.
• Do not apply excessive load to the gilded flexible board.
UNIVERSAL WRENCH
In case of the following notches or holes are located in the lens block, etc during disassembling/
assembling the lens, Use the universal wrench.
assembling the lens, Use the universal wrench.
How to Use
Attach the chip-A or chip-B to the universal wrench.
For the notches: chip-A
For the holes:
For the notches: chip-A
For the holes:
chip-B
Match the universal wrench to the holes or notches of the lens block, etc.
Notches
Holes
Universal wrench
J-6082-609-A
J-6082-609-A
Chip-A for
universal wrench:
J-6082-609-1
universal wrench:
J-6082-609-1
Chip-B for
universal wrench:
J-6082-609-2
universal wrench:
J-6082-609-2
Notches
Chip-A
Chip-A
Chip-B
Chip-B
Chip
Chip
Match the universal wrench
to the width of holes or notches.
to the width of holes or notches.
Universal wrench
Holes
Ver 1.2 2007.01
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