Sony HCD-H700 - SECTION 5 ELECTRICAL ADJUSTMENTS; Record Bias Adjustment; Record Level Adjustment

Record
Bias
Adjustment
|
DECK
B
shies
Sa
aoets
signal
recorded
in
step
become
adjust-
ment
level
as
follows.
Procedure
:
If
these
levels
do
not
adjustment
level,
adjusment
the
RV201
1.
record
mode
(L-CH)
and
RV301
(R-CH)
to
repeat
step
1
and
2.
AF
OSC
blank
tape
-123
-
Adjusment
Level
:
e)
attenuator
LINE
OUT
level:
—23.8dB+0.5dB
(29
to
33.4mV)
Adjustment Location: main board
Adjustment Location:
Mechanism deck — rear side —
RV22 REC BIAS (R)
2.
playback
mode
(MD-B
ONLY)
RV12 REC BIAS (L)
recorded
ddl
(MD~-B
ONLY)
i
q
RV72 (A/B) TAPE
HIGH SPEED
RV71 (A/B) TAPE
NORMAL PEED
Confirm
playback
the
signal
recorded
in
step
1
become
adjustment
level
as
follows.
If
these
levels
do
not
adjustment
level,
adjusment
the
RV12
(L~CH)
and
RV22
(R-CH)
to
repeat
step
1
and
2.
:
RV21
(A/B)
Adjusment
level:
Playback
output
of
315Hz
to
playback
PB
(R)
LEVEL
output
of
10kHz:
—0.5dB
to
0.5dB.
RV11
(A/B)
PB (L) LEVE
Adjustment
Location:
MD-B
board
ELEEVEL
Record Level Adjustment | DECK B
Ce
MD
BOARD
(MD-A,
MD-B)
—
component
side
—
l.
record
mode
AF
OSC
blank
tape
7
eee
CS-123
sub
board
—
component
side
€) attenuator
(o)
o—o
TP101
RV22
315Hz,
31.6mV
(-
23.8dB)
REC
BIAS
(R)
RV12
FRV301
2.
playback
mode
REC
BIAS
(L)
+
FREC
LEVEL
(R)
recorded
cy)
FRV201
:
VTVM
|
‘
3
Portion
MD-B
BOARD
|
;
~6FREC
LEVEL
(L)
TPI01
ee}
mi
TP201
“a (
a i
ae