— 2 —
WARNING!!
WHEN SERVICING, DO NOT APPROACH THE LASER
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION,
BE SURE TO OBSERVE FROM A DISTANCE OF
MORE THAN 25 cm FROM THE SURFACE OF THE
OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
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.
CAUTION:
The use of optical instrument with this product will increase eye
hazard.
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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
4. Look for parts which, though 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.
Unleaded solder
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40
°
C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°
C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
Summary of Contents for SLV-D900E
Page 39: ...3 Block Diagram 3 2E 3 1 SLV D900E D900G ...
Page 41: ...4 3 4 4 4 1 VCR Main COMPONENT SIDE ...
Page 42: ...4 6 4 5 CONDUCTOR SIDE ...
Page 43: ...4 7 4 8 4 2 DVD Main CONDUCTOR SIDE COMPONENT SIDE ...
Page 44: ...4 10E 4 9 4 3 FUNCTION Timer COMPONENT SIDE CONDUCTOR SIDE ...
Page 47: ...5 6 5 5 5 1 S M P S ...
Page 48: ...5 8 5 7 FROM TO DVD Audio Video CN4 5 2 Power Drive ...
Page 49: ...5 10 5 9 5 3 OSD VPS PDS ...
Page 50: ...5 12 5 11 5 4 NICAM ...
Page 51: ...5 14 5 13 5 5 A V ...
Page 52: ...5 16 5 15 5 6 Hi Fi ...
Page 53: ...5 18 5 17 5 7 Input Output ...
Page 54: ...5 20 5 19 5 8 TM ...
Page 55: ...5 22 5 21 5 9 SYSCON ...
Page 56: ...5 24 5 23 5 10 DVD Main Micom AV Decoder ...
Page 57: ...5 26 5 25 5 11 DVD Servo ...