Tape Mechanism Adjustment; Diagram - Pioneer H-2000 Service Manual

H-2000
H-2001
5.5
TAPE MECHANISM ADJUSTMENT
Prior
to
adjustments, demagnetize
the
head and
clean
the parts where the
tape
threads (such
as
head, capstan, guide, etc.)
with a soft
cotton
cloth
or
swab moistened
with
a
little
alcohol
or
cleaning
fluid
Be
sure
to
adjust
for
crosstalk
and
azimuth
when replacing
the
head
or
cam,
or
changing-
their positions. Adjust
alternately
because
they
are closely related.
O
ADJUSTMENT TOOLS AND MEASURING
INSTRUMENTS
1.
VTVM
2.
Test Tape (P-328,
PST
-4.2)
3.
Screw
Driver
4.
Bond and Screw
Lock
5.5.1 CROSSTALK ADJUSTMENT
1.
When
the
cartridge
door
is
opened
and
a
program is
set
to I
visually,
be sure
the
head
is
positioned almost
at the
same
height
as
the
positions
of
the
upper end
of
the
tape
running
of
the
tape guide and the
detection
outlet
(L
side)
of the head.
(Fig.20)
2.
When
a program
is
changed
over
to 4,
be
sure
the
position of
the head is
almost at
the
same
height
as
those
of the lower
end
of
the
tape
running and the
head
detection outlet
(R side).
(Fie
.
2I)
3.
Connect according
to Fig.
19 and insert test
tape Pr328.
4.
Change
program
to
2, and adjust by turning
crosstalk adjusting screw
(Fig
.
22)
so
as
to
minimize VTVM
needle
vibration both
in
Lch and
Rch. After
adjustment,
sec-ure ad-
justing
screw
with
bond and screw lock.
O
TEST TAPE
O
HOOK
UP
DIAGRAM
TAPE
GU
IDE
(cx
A-526-0)
F
is. 19
TAPE
GUIDE
(cxA-5
26-0l
---
-Tast
Tape
Item
\\
P
-328
PST-4.2
Recording Track
1
,3,5,7
F
u
ll
Tracks
Frequency
4OO
Hz B kHz
Lever
o
dB
13 dB
Application Crosstalk Azimuth
E$tr
E+E
HEAD
(cPB-013-0)
F
is. 20
CAM
ASSE
M
B
LY
(CXA-529-O)
HEAD
(cPB-013-0)
Fig.
21
CROSSTALK
ADJUSTING
SC
REW
Fig.22
l2