MAINTENANCE/INSPECTION PROCEDURE
4-19
(3) F/E Head
(5) Drum Assembly
(Video Head)
(4) Base
Assembly P2
(2) Tension Post
(1) Supply Reel
(6) Base Assembly P3
1. Check before starting repairs
The following faults can be remedied by cleaning and oil-
ing. Check the needed lubrication and the conditions of
cleanliness in the unit.
Check with the customer to find out how often the unit is
used, and then determine that the unit is ready for inspec-
tion and maintenance. Check the following parts.
Phenomenon
Inspection
Replace-
ment
Color beats
Dirt on Full-Erase Head
o
Poor S/N, no color
Dirt on Video Head
Vertical or
Horizontal jitter
Dirt on Audio/Control Head
Dirt on Pinch Roller
NOTE
If locations marked with
o
do not operate normally after
cleaning, check for wear and replace.
See the EXPLODED VIEWS at the end of this manual as
well as the above illustrations and see the Greasing (Page
4-21, 22) for the sections to be lubricated and greased.
o
o
o
o
Dirt on Video Head
Dirt on tape transport system
Low volume,
Sound distorted
Tape does not run.
Tape is slack
o
In Review and
Unloading (off mode),
the tape is rolled up
loosely.
Clutch Assembly D35
torque reduced
Cleaning Drum and
transport system
Fig. C-9-3
(7) A/C Head
(8) P4 Post
(10) Pinch Roller
(11) Take-up Guide Post
(9) Capstan Shaft
(12) Take-up Reel
* No. (1)~(12) Indicates the Tape Path to be traveled from Supply Reel to Take-up Reel.
Fig. C-9-1 Top View
Fig. C-9-2 Bottom View
F/E Head
Video Head
A/C Head
Pinch Roller
Belt Capston
Clutch
Assembly D35
Fig. C-9-3 Tape Transport System
Summary of Contents for DVD755VR
Page 8: ...Directions for Use ...
Page 9: ......
Page 10: ......
Page 11: ......
Page 12: ......
Page 13: ......
Page 14: ......
Page 15: ......
Page 16: ......
Page 17: ......
Page 18: ......
Page 19: ......
Page 20: ......
Page 21: ......
Page 22: ......
Page 23: ......
Page 24: ......
Page 25: ......
Page 26: ...Personal Notes ...
Page 49: ......
Page 56: ...3 32 3 33 2 TU IF NICAM A2 CIRCUIT DIAGRAM EE MODE VIDEO TU MODE AUDIO COMBI SCART ...
Page 59: ...3 38 3 39 5 SCART JACK CIRCUIT DIAGRAM OPTIONAL PART COMBI SCART ...
Page 61: ...3 42 3 43 7 TIMER CIRCUIT DIAGRAM ...
Page 65: ...3 50 3 51 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Page 66: ...3 52 3 53 2 SMPS P C BOARD LOCATION GUIDE 3 TIMER P C BOARD LOCATION GUIDE 4 KEY P C BOARD ...
Page 67: ......
Page 93: ......
Page 96: ...3 83 3 84 3 AUDIO CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17447A ...
Page 97: ...3 85 3 86 4 AV JACK CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17446A ...
Page 100: ...3 91 3 92 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Page 101: ......
Page 133: ...MEMO ...
Page 134: ...EXPLODED VIEW 1 Deck Mechanism Exploded View 5 1 CONTENTS SECTION 5 MECHANISM OF DVD PART ...