Sony DAV-S300 (serv.man2) Service Manual ▷ View online
9
3. Miscellaneous
(1) Lens cleaning
If the value of level of RF signal is smaller than the nominal value
, clean the lens with
feather touch. Use certainly the dedicated fine swab (P/N: J-2501-023-A) for cleaning.
Clean the lens without liquid lens cleaner, otherwise unevenness may occur on the
surface of lens by wiping.
OP block of DVD is very sensitive mechanism. If you wipe strongly, it may damage.
When P-P value of RF signal recovers by cleaning lens, confirm that OP block isn’t
damaged , letting it access to the inner radius and outer radius by turns around 10 times.
(2) Compatibility with NEW and OLD board
POWER board, AUDIO board, DVD board and PW932 board have each old type and
new type. If you combine Power board with Audio board or DVD board with PW932 board,
mixing new type and old type, the malfunction may occur.
The details of recognition of boards and combination are introduced in T/N. Refer to it
and use with the correct combination.
10
Sony Corporation
Sony Corporation
Sony Corporation
Sony Corporation
Home Audio Company
Printed in Japan 2001.8
9-929-051-21 Printed by Qual
Printed by Qual
Printed by Qual
Printed by Quality Assurance Dept.
ity Assurance Dept.
ity Assurance Dept.
ity Assurance Dept.
(Shinagawa)
(Shinagawa)
(Shinagawa)
(Shinagawa)
10
Sony Corporation
Sony Corporation
Sony Corporation
Sony Corporation
Home Audio Company
Printed in Japan 2001.8
9-929-051-21 Printed by Qual
Printed by Qual
Printed by Qual
Printed by Quality Assurance Dept.
ity Assurance Dept.
ity Assurance Dept.
ity Assurance Dept.
(Shinagawa)
(Shinagawa)
(Shinagawa)
(Shinagawa)
10
Sony Corporation
Sony Corporation
Sony Corporation
Sony Corporation
Home Audio Company
Printed in Japan 2001.8
9-929-051-21 Printed by Qual
Printed by Qual
Printed by Qual
Printed by Quality Assurance Dept.
ity Assurance Dept.
ity Assurance Dept.
ity Assurance Dept.
(Shinagawa)
(Shinagawa)
(Shinagawa)
(Shinagawa)
