Panasonic PV-M2738 Operating, Руководство по обслуживанию

Страница: 135 / 151

7-1
REPLACEMENT PARTS LISTS
BEFORE REPLACING PARTS, READ THE FOLLOWING:
REPLACEMENT NOTES
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) DE-
VICES" section of this service manual.
4. Parts with no Ref. No. in "EXPLODED VIEW" 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. The parts which "AKEI" is indicated in Remarks column
will be supplied from AKEI factory.
Mechanical Replacement Notes
1. Section No. of parts shown in Exploded Views are
indicated in the Remarks column.
2. Capstan Rotor Unit, Capstan Holder Unit, and Stopper
are supplied as Capstan Rotor Kit (Ref. No. 51) only.
3. Capstan Stator Unit, Capstan Rotor Unit, Capstan
Holder Unit, and Stopper are supplied as a Capstan
Stator Kit (Ref. No. 52) only. However, IC2501
(AN3845SC) is available separately as a replacement
part. When installing the IC2501 or Capstan Stator unit,
be sure to apply Silicon Grease (VFK1301). Refer to
"Capstan Stator Unit" of "DISASSEMBLY/ASSEMBLY
PROCEDURES OF MECHANISM" section.
4. Since the UHF/VHF TUNER/TV DEMODULATOR UNIT
(Ref. No. E21) has already been pre-adjusted at the
factory, do not try to adjust the UHF/VHF TUNER/TV
DEMODULATOR UNIT. The UHF/VHF TUNER/TV
DEMODULATOR UNIT replacement part is available as
a complete assembly unit only.
5. The Infrared Remote Control Unit (Ref. No. 123)
replacement part is available as a complete assembly
unit only. Do not try to disassemble the Infrared Remote
Control Unit. However, the battery cover is available
separately as a replacement part.
6. Cut Washers (Ref. No. 417 and 441) are not reusable.
If removed, install a new one.
7. Main Cam Push Nut (Ref. No. 414) is not reusable.
If removed, install a new one.
Electrical Replacement Notes
1. Item numbers with capital letter E (Example: E1, E2,...)
in the Ref. No. column are shown in the exploded views.
The E item numbers are also printed on the same page
at the top of the column.
2. The parts with " " mark are supplied individually or as a
unit. The parts with " " mark are supplied individually or
as a unit, and are included in " " parts listed directly
above in the parts list.
3. Unless otherwise specified;
All resistors are in ohms, 1/4W, +/-5%, carbon,
K = 1,000 ohm, M = 1,000 kohm.
All capacitors are in microfarads, P = micromicrofarad,
+/-10%.
All coils are in microhenries, M = 1,000 microhenry,
+/-10%.
4. 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
C.B.A.: Circuit Board Assembly
P.C.B.: Printed Circuit Board
E.S.D.: Electrostatically Sensitive Devices
5. SERVICE OF CHIP PARTS
When servicing chip parts, please use a soldering iron of
less than 30 watts. Refer to "IC, TRANSISTOR AND
CHIP PART INFORMATION" page.
6. The parts with " " are 0 ohm resistor. When replacing,
a wire can be substituted for a 0 ohm resistor.
COMPARISON CHART OF MODELS & MARKS
PV-M2738 A
PV-M2768 B
PV-M2768-K C
MODEL MARK