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PD-7O3SO(BK)/PD-7030
.
7.2 SCHEMATIC DIAGRAM
NOTE:
4. RESISTORS.
SWITCHES:
Indicated in 2, %W,
Ye
W,25% tolerance unless otherwise noted k; k2,
MAIN
BOARD
ASSEMBLY
M; MQ,
(F); £1%,
(G); #2%, (K); +10%,
(M); +20% tolerance
St:
TEST
2. CAPACITORS:
FUNCTION
BOARD
ASSEMBLY
Indicated in capacity
(uF)/voltage (V) unless otherwise noted
S201 : OPEN/ CLOSE
p; pF. Indication without voltage is 50V except electrolytic capaci-
$202
. REPEAT
tor.
$203
: <4
(MANUAL
SEARCH)
F
rN
3, VOLTAGE
$204
wR
(MANUAL
SEARCH)
+ DC voitage (V) at no input signal
SZ08:.: PROGRAM
ra
S206 : Kd (TRACK SEARCH)
4. OTHERS:
S207 : BRI
(TRACK
SEARCH)
=> ae
route.
:
$208
: STOP / CLEAR
@ ;,Adjusting point.
:
The
mark found on some component parts indicates the im-
lg 5 ch
portance of the safety factor of the part. Therefore, when replacing,
.
be sure to use parts of identical designation.
PRIMARY
BOARD
ASSEMBLY
%& marked capacitors and resistors have parts numbers.
S401
: POWER
ON — OFF
er
OUTSIDE
OF
PC.
BOARD
ASSEMBLY
This
is the basic schematic diagram, but the actual circuit may
S101
: INSIDE
vary due to improvements in design.
S102
» CLAMP
CLAMP
—
OPEN
2
dst de £
The underlined indicates the switch position.
The waveforms at each measuring point indicated by the
—_——_—_—_—————— _ Focus servo loop line
---------——-—
Signal route
——__—_——————_
Tracking servo loop line
cer
rcercocceco
Carriage servo line
—_——__—_——_———_
Loading motor route
—-----—-—-—--—
Spindle motor route
>
Measurement point
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