Sony TC-FX211 - Diagrams and Schematics; Block Diagram and Signal Flow; Printed Wiring Board Layouts; Head Alignment and Level Adjustments

Record/Playback Head Azimuth Adjustment
Procedure:
1. Mode: playback
test tape
P-4-A063
(6.3kHz, -10dB)
LINE OUT
2. Turn the adjustment screw for the maximum
Output levels. If these levels do not match, turn
the adjustment screw until both of output
levels match together within 1 dB.
L-CH
peak
1d8
R-CH
Screw ? eak
position
—» angle
L-CH R-CH
peak peak
3. Phase Check
Mode: playback
test tape
P-4-063
(6.3kHz,
~-10dB)
47k2.
oscilloscope
L-CH
LINE OUT
in phase 45° 90° 135° = 180°
ne Ale ena
good wrong
Adjustment Location:
— Record/Playback head —
Adjustment screw
-within
Playback Level Adjustment
Procedure:
1. Mode: playback
test tape
P-4-1 300
(315
Hz,
OdB)
VTVM
A7kO ma
LINE OUT
Adjust
RV102
(L-CH)
and
RV202
(R-CH)
so
that
the
specification
is
met.
Specification:
Line
OUT
level:
—7.7dBs
+0.5
dB
Level
difference
between
channels:
less than 0.5 dB
Check
that
the
LINE
OUT
level
does
not
change
in
playback
mode
while
changing
the
mode
from
playback
to
stop
several
times.
Record Bias Adjustment
Setting:
REC LEVEL control: standard record
Procedure:
1. Mode: record
AF OSC
blank tape
€
Bae
CS-123
O attenuator
o's }
:
|
L,
O00
arg
6002 vA
LINE IN
1) 315 Hz =
eps } 0.05 V (— 23.8 dBs)
2. Mode: playback
recorded
VTVM
portion
pea
LINE OUT
Confirm that the 10 kHz playback output is
00.5 dB relative to the 315 Hz output. If
necessary, adjust CT-301-1 (L-CH), CT301-2
(R-CH) and repeat the steps given above.
Record Level Adjustment
Setting:
REC
LEVEL
control:
standard
record
Procedure:
1. Mode: record
AF OSC
| blank tape |
CS-123
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0) jpacanaiiaansi |
O——o
o—o
LINE IN
315 Hz, 0.05 V( — 23.8 dBs)
2. Mode: playback
recorded |
portion
3.
Playback
the
signal
recorded
in
step
j.
Confirm
that
the
signal
level
is
within
the
specification
below.
If
necessary,
adjust
RV10]1
(L-CH),
RV201
(R-CH)
and
repeat
the
step
1-3.
Specification:
LINE
OUT
level:
—
23.8
dBs
+
0.5
dB
Adjustment
Location:
audio
board
CT301-2
CT301-1
RV102
RV202
RV201 RV101
R-CH
L-CH
-
:
RCH)
(L-CH)
(LCH)
RCH)
cin
(ou
|
SECTION
3
:
DIAGRAMS
3-1.
BLOCK
DIAGRAM
J302 (1/2) :
RV301-1
REC LEVEL
- (L-CH)
D
|
i?) i
HRP
REC/PB
PB
LEVEL
HEAD
(L)
(L—2H)
'
1
! PB EQ
TAPE |
oo RY304 SWITCH
¥
Q103
| —~CH
|
R-CH
| :
ee
<
|
CT3014
|
sane
REC
BIAS
|
«0346
BIAS |
SWITCHI |
Q@309 |
HE
ERASE X
HEAD
BIAS
osc
Q315,316
—~ R-CH
SAME AS L-CH