Revox C221 User Manual

Rd/ox
C221 @
Player
Service Manual
5
Test
points
/ alignment
5.1
Test
points
-
seruo
board
The following
test
points
are located
on
the
servo board:
P5
-12
V supply
voltage
-
only if
PSON
signal
=
"0"
P6 +20 V
(V
PYRAMIDE)
-
independent of PSON
P7 +5 V STBY
-
independent of PSON
P8
-5
V
supply
voltage
-
only if PSON signal
=
"0"
P9 Star
point ground
P10
TL signal
-
low
if no track
(title)
P11 +5 V supply
voltage
-
only
if PSON
=
"0"
P12
PSON signal
-
*On
if supply voltage
is
available
P13 +12V supply
voltage
-
only
if PSON
=
"0"
P14 SDAB signal
-
subcode data
P15
HF
signal
P16
SWAB/SSM
signal
-
start/stop signal for disc motor
P17 SCAB signal
-
subcode clock
P'18 MCES
signal
-
motor
speed control
P19 0Vsignal
-HFmeasurement
P2O
EFAB
signal
-
error flag, changes to
"1"
on error
P21 DAAB signal
-
lls
(l'S
or
llS)
bus data
P22
CLAB
signal
-
lls
bus clock
P23 WSAB signal
-
lls bus word
select
P24 FO
signal
-
focus
drive signal
P25 MBUS signal
-
master
bus
P26 SBUS signal
-
slave bus
P27 RED
signal
-
radial error
P29
SI/RD
signal
-
on/off for focus
servo system
P30 Test
point,
laser
voltage
P31 Test
point,
focus voltage
P33 RA signal
-
radial
drive
P34 VC signal
-
disc motor
drive
P36
TRMOT
signal
-
drawer motor drive
(tristate
=
flo ffiove,
low
=
outwards,
high
=
inwards)
38

Revox C221 Specifications

General

Brand	Revox
Model	C221
Category	CD Player
Language	English