BEFORE REPLACING PARTS, READ THE FOLLOWING:
17.1. REPLACEMENT NOTES
17.1.1. General Notes
1. Use only original replacement parts:
To maintain original function and reliability of repaired units,
use only original replacement parts which are listed with
their part numbers in the parts list.
2.
IMPORTANT SAFETY NOTICE
Components identified by the sign
have special
characteristics important for safety. When replacing any of
these components, use only the specified parts.
3. SPECIAL NOTE
All integrated circuits and many other semiconductor
devices are electrostatically sensitive and therefore require
the special handling techniques described under the
"ELECTROSTATICALLY SENSITIVE (ES) DEVICES"
section of this service manual.
4. Parts with no Ref. No. in "EXPLODED VIEWS" are not
supplied. And some Ref. No. will be skipped. Be sure to
make your orders of replacement parts according to the
parts list.
5. Parts different in shape or size may be used. However, only
interchangeable
parts will be supplied
as service
replacement parts.
6. Definition of Parts supplier:
a. Parts with mark "SPC" in the Remarks column are
supplied from Spare Parts Center of Panasonic AVC
Company.
b. Parts without mark in the Remarks column are supplied
from PSEC.
7. Item numbers with capital letter E (Example: E10, E20,...) in
the Ref. No. column are shown in the exploded views.
8. Parts whose Ref. Nos. are the same are interchangeable as
replacement parts. Any of these parts may be ordered and
used as a replacement part.
17.1.2. Mechanical Replacement Notes
1. Section No. of parts shown in Exploded Views are indicated
in the Remarks column.
2. Abbreviation
RTL: Retention Time Limited
This indicates that the retention time is limited for this item.
After the discontinuation of this item in production, it will no
longer be available.
17.1.3. Electrical Replacement Notes
1. Unless otherwise specified;
All resistors are in
W
, K = 1,000
W
, M = 1,000 k
W
.
2. Abbreviation
RTL: Retention Time Limited
This indicates that the retention time is limited for this item.
After the discontinuation of this item in production, it will no
longer be available.
NR: Non Repairable Board Ass´y
MGF CHIP: Metal Glaze Film Chip
C CHIP: Ceramic Chip
COMPLX CMP: Complex Component
W FLMPRF: Wirewound Flameproof
P.C.B.: Printed Circuit Board
E.S.D.: Electrostatically Sensitive Devices
3. SERVICE OF CHIP PARTS
When servicing chip parts, please use a soldering iron of
less than 30 W.
4. When replacing 0
W
resistor, a wire can be substituted for
it.
5. Parts with mark "CSP" in the Remarks column are CSP
(Chip Size Package) IC.
6. IC6006 replacement note:
When replacing this IC, be sure to write the initial data with
PC-EVR Adjustment Program.
17 Replacement Parts Lists
76
SDR-H250E / SDR-H250EB / SDR-H250EE / SDR-H250EF / SDR-H250EG / SDR-H250EP / SDR-H250GC / SDR-H250GN / SDR-H258GK
