LG V9120W Service Manual page 90

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DECK MECHANISM ADJUSTMENT
1. Mechanism Assembly Mode Check
Purpose of adjustment : To make tools normally operate by positioning tools accurately.
Fixtures and tools used
• Blank Tape (empty tape)
1) Turn the VCR on and take the tape out by pressing the
eject button.
2) Separate both top cover and plate top, and check both
the hole (A) of gear cam and the hole (A') of chassis cor-
respond (Fig. C-2).
3) If it is done as in the paragraph 2): Turn the gear cam as
in No.2) after mantling the motor assembly L/D.
CHECK DIAGRAM
4-13
VCR (VCP) status
• Eject Mode
(with cassette withdrawn)
BOTTOM VIEW
TOP VIEW
4) Undo the screw fixing the deck and the main frame, and
separate the deck assembly. Check both the hole (A) of
gear cam and the hole (A') of chassis correspond (Fig.
C-1).
5) Check the mode S/W on the main P.C. board locates at
a proper position as in (B) of the Fig. (C-1).
6) Connect the deck to the main P.C. board and perform all
types of test.
Gear Cam
(C)
Gear Drive
Correspondence of the gear cam hole (O)
and the gear drive hole (O)
Fig. C-1
Motor Assembly L/D
Gear Cam
(A')
Chassis Hole
Fig. C-2
Checking Position
• Mechanism and Mode Switch
Mode S/W
(B)
(A)
Gear Cam Hole

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