Philips DCC170/00 - Electrical Adjustments; Preparation and Disassembly for Electrical Adjustments

O
ELECTRICAL
ADJUSTMENTS
o
Disassembly
1.
Complete
disassembly
instruction
Ref.
No. 1
on
page
3.
(Tape
speed
adjustment)
2.
Complete disassembly instruction
Ref.
No. 2 on
page
3.
(Other
adjustments)
3.
With
the unit disassembled,
plug
the
accessory
AC Adaptor
(or
other
6V
DC
power
supply)
into
the unit's DC lN
jack.
4.
Connect a measuring instrument
to the LINE
OUT
jack.
Note:
Use
the
in-ear
phones
for
audio monitoring.
TP1 :
Test land
Íor
playback
ITP
J2o2
|
: For rec
current adj.
(C
SET voltage
check)
Fig. 1 MAIN PCB
(P503)
I
R211
I
: Rec current adj.(DCC)
l-El:
Playback
level adj.(Rch)
I
R12?
l:
Playback
level adj.(Lch)
I
Rlíl
: High rJrqr"n.y
response
adj.(Lch)
I
R152
|
: High Íerquency
response adj.(Rch)
Í
TPTI
l
ol : For rec current
adj.
(RD
MUX level
check)
Fig.2
MECHANISM PCB
(P103)
lTPoil
: For rec
current adj.
(Read
lC AGC
cancel)
lRusil:
Motor
speed
adj.
JMO1
JMO2
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79
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