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SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
W ARNING!!
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.
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.
This appliance is classified as
a CLASS 1 LASER product.
The CL ASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
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.
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.
CAUTION:
The use of optical instrument with this product will increase eye
hazard.
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TABLE OF CONTENTS
Service Note
1 Connection of Jig (Extension Cable) ··················\
················ 4
2 Disc Removal Procedure (at Power off) ··················\
··········· 5
1. General
Hookups and Settings ··················\
··················\
··················\
1-3
Basic Operation ··················\
··················\
··················\
········· 1-6
Recording ··················\
··················\
··················\
··················\
1-9
Playback ··················\
··················\
··················\
··················\
1-11
Erasing and Editing ··················\
··················\
··················\
· 1-14
DV Dubbing ··················\
··················\
··················\
············ 1-16
Settings and Adjustments ··················\
··················\
·········· 1-17
Additional Information ··················\
··················\
·············· 1-19
2. Disassembly
2-1 Top Case ··················\
··················\
··················\
··················\
· 2-1
2-2 Front Panel Section-1 ··················\
··················\
················· 2-1
2-3 Front Panel Section-2 ··················\
··················\
················· 2-2
2-4 Video Deck Assy ··················\
··················\
··················\
····· 2-2
3. Block Diagrams
1) Video Block Diagram ··················\
··················\
················· 3-1
2) Audio Block Diagram ··················\
··················\
················ 3-3
3) Video Input/Record Path ··················\
··················\
············ 3-5
4) Video Output Path ··················\
··················\
··················\
···· 3-7
5) Audio Input Path (Tuner, AV & DV1394) ··················\
···· 3-9
6) FLD/u-Com/Tuner ··················\
··················\
··················\
· 3-11
7) Power: Main Board ··················\
··················\
··················\
3-13
4. Schematic Diagrams
4-1 Frame (1/2) ··················\
··················\
··················\
················ 4-1
4-2 Frame (2/2) ··················\
··················\
··················\
················ 4-3
4-3 Power ··················\
··················\
··················\
··················\
······· 4-5
4-4 Mpeg Encoder ··················\
··················\
··················\
··········· 4-7
4-5 Mpeg Decoder ··················\
··················\
··················\
··········· 4-9
4-6 Video Decoder & DV1394 Phy ··················\
··················\
· 4-11
4-7 I/O ··················\
··················\
··················\
··················\
·········· 4-13
4-8 Key ··················\
··················\
··················\
··················\
········ 4-15
4-9 Jack ··················\
··················\
··················\
··················\
········ 4-17
4-10 Timer ··················\
··················\
··················\
··················\
····· 4-19
4-11 Waveforms ··················\
··················\
··················\
··············· 4-21
4-12 Circuit Voltage Chart ··················\
··················\
················· 4-23
5. Printed Wiring Boards
5-1 Main Board ··················\
··················\
··················\
················ 5-1
5-2 I/O Board ··················\
··················\
··················\
··················\
· 5-3
5-3 Key/Timer Board ··················\
··················\
··················\
······· 5-7
5-4 Jack Board ··················\
··················\
··················\
················· 5-9
6. Troubleshooting ··················\
··················\
············· 6-1
7. Repair Parts List
7-1 Exploded Views ··················\
··················\
··················\
········· 7-1
7-1-1 Cabinet and Main Frame Section ··················\
··················\
7-1
7-1-2 Packing Accessory Section ··················\
··················\
·········· 7-2
7-2 Electrical Parts List ··················\
··················\
··················\
··· 7-3
