JVC HR-XV28SEF, Service Manual

Page: 22 / 131

1-22 (No.YD068)
4.3.2 Mechanism Assembly Mode Check
Purpose of adjustment : To make tools normally operate by positioning tools accurately.
Gear Cam
Gear Drive
(C)
Mode S/W
(B)
Motor Assembly L/D
Gear Cam
Chassis Hole
Gear Cam Hole
(A)
(A')
Fixtures and tools used VCR (VCP) status Checking Position
Fig. C-1
Fig. C-2
CHECK DIAGRAM
BOTTOM VIEW
TOP VIEW
Blank Tape (empty tape)
Eject Mode
(with cassette withdrawn)
Mechanism and Mode Switch
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 co-
rrespond (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.
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.
Correspondence of the gear cam hole (O)
and the gear drive hole (O)