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240 VAC
TB1-1
TBl-6
TB1-2 TO TB1-3
TBl-7TOTBl-8
902
············································1········· .. , ' ................. , ..
+8VDC
Fl
SA
+8V
+20V
Maintenance
r------------------------------------------------------_______________________
+~5~V~D~C~J3~~~TOA~2-4
+5 VDC REGULATOR
R3
1
RS
1
Rl
500
TP7
+SV
+5V
R17
715
~
~6ci
C4
0.001
R14
2210
CR2
6.8V
:· .. ········,····1····································· ....................................................................... .
+
12 VDC REGULATOR
02'
R7
1.2
.--_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ --'+..!:12o...;V:.!;D:::C--+-4 3 )---@--"TOASJ2-2
TP6
+12V
.--....... - - - - _ - -...... -
~12V
+SV
R21
5000
C5
220 pF
C12
200
R8
2.75
R9
-12 VDC REGULATOR
03'
),-_ _ _ _...-"V
1
V·
5
'r---_----......
- - - - + - - - -__
-_----.t___,.........;.-..:.-1!!.2..:::V.::::OC:::....-
L4
5
r--®--
TO ASJ2-3
Cll
O.OS
R35
390
R34
56
R33
110
R2B
12K
R13
680
~~-~~-d\P-~--_...--+-----------------------------~----------------------------4----------------------------------~+~2~OV~D~C~J2~3~TOA1Jl-l
CRS
CRG
~
I
~~~~J ~3t-/J-4---'R~ET.:..:R~A~C~T~SW:.:.:I.:..:TC~H~C:.:L~OS=E~D--------------------------------------------------------------,
' :
~TP2
DCGRD
SERVO CONTROL
J2
5
R36
4700
~
~
C7r-ICR7
1000
+5V...LI
4:~
R26
47K
cV
~
1~
/,_J,.:l---' E :....N_E..:.RG:....IZ::;E:..;S;.:E.c:. RV .:..: O :;..R:...;E:.:L:..:.AY:...--'"_ ..... _ - - - - - - < U . - 4 l
U3
~9
U5C
I
;
10
8
I
+SV --'R V 9"'1
"""""'U..-.:!J
4
I
1000
L . . . -
R39
2200
U5B
5
6
t-V
CR13
R43
2200
R42
1000
016
!?'
\!:::
015.----4-....--..--
NOTE:
ASTERISK IDENTIFIES PARTS LOCATED
ON ASSEMBLY 07901-60009. ALL
OTHER PARTS ARE MOUNTED ON
ASSEMBLY 07901-60011.
12
USD
~\!L
~
R38
1000
L::
~
+20
V'4~_---<~_-----
...... - -_
___+-+----...,.----~"v_----_...----~-----_---....:....--
___
~J4::..~:; 2~
TO RETRACT SWITCH S8
.
BTl
-.L
CR20
~
I
I
I
-12V
+12V
+12V
A67
2370
R56
RSS
R63
100
100
1000
~~~~3.C ~ 2~
(+-_....:::;CU::;.R:.:.;R:.:E:..:.NT:...;C::.;:O::.;M:;;;M:;.:AN:...;O"-----'_-"./V\,.-...j....< ...... _ _ _ _
-=4
I
I
I
R37
R
10K
R24
A25
3300
560
-12V
....
SERVO AMPLIFIER
CR9
CR15
......
R73
1000
CA8
+12V
012
!?'
I>--
KO
R48
S10
013
C20
0.001
R49
R69
180
56
C17
RS3
0,082 100
.----
Rn
R70
180
0,1
R74
47
04'
!?
RSO
~
100
,
OUTPUT
VOLTAGE
05'
R46
~ \!:::
5100f
~1~
R51
~~6
-12V
R75
~01-o22
0
~R7B
C2l 1000
180
0.01
~-20V
CR17
CR16
R71
0.1
R83
5100
R84
1000
CR18
014
~
' - - -
-20V
R52
1300
BT2...I....
BT3
..I....
NC
~
I
NC :
NO
I
I
R85
I
Kl
SERVO
82
RELAY
-20V
CR21
CA12
R86
CRll
~
R79
1.5
+8V
I
I
I
I
20
r-_.J<,I\fv-_-;_----'--------J::.;:6:....~/
1
>---
??diTCpUo~~i,~~ ~~~~,
R87
20
I
J5
~
1
LINEAR
MOTOR
L4
I
~
3 /
i
POWER GROUND
0.1
i
~L:....l.--~~:"'::'::_=:':':_C- __ -_-_~_-_-_.-._ . . ~ . . - . _ . - . _ . - . . - . . - . . - . . . - . . - . . - . . - . . - . . - . . - . . - . . . - . . - . . -.- . . - . . - . . - . . . - . . - . . - . . - . . - . . - . . -.- . . - . . . - . . - . . - . . - . . - . . - . . - . . - . . . - . . - . . - . . - . .
+ .. - . . - . .. -.. -.. - .. """' . . . . . . . - . . - . . -, .- . . -.. - .. - .. - . . - . . - . . - . .. -.. - .. - .. - . . - . . - . . - . .. -.. - -...... - . .. -.. - .. - .. - . . - . . - . . - . . - . ..
- . - - - - - - - - - - - - - - - - < t - - . . . . J o " I I I V - " 1
r
- - - - - .. - .. - .. - . . - . .. -.. -.. -.. - .. -. --.- .. -.. -.. -.. -.. - . . - . .
"1 ..
rL. ..... -.-.-.-.-.-.-.-.-.- ..
~
..
-.-.-.-.-.-.-.-.~--.~~--.,~~-.-~~--~~--.~~--.,~~-.-~~:~~~~~~
__
-_-_-~~~~J","6'-~~~: ~(TOdiTC~o~7il~~'6~L~
DING REV A
Figure 5-22. Disc Drive Power Supply and Servo Amplifier/
Regulator PC Assembly A4, Schematic Diagram
5-27
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