Technics SL 1700 MK2 Schematic Diagram 1

Page 1

SL-1 7OOMK2

l SCHEMATIC DIAGRAM 1 (Control Circuit Board)

3 I

4

10 .

11

13 .

14

1 . 2
To drive circuit ® terminal
To drive circuit ® terminal
To drive circuit ® terminal
To drive circuit ® terminal
A To drive circuit terminal
To drive circuit (9 terminal
To drive circuit terminal
- rm.
(A/[Hi
/\(()l|i(lilllli 0i lllll ll uiiilml
lllI((1/\IN) -
B
PL]
C [9.0) (I (hit)
I)
ESVll Mimi)
5405 l2.zl (Ml lijl vii iwni I0)
4
D
Q)
_ Ami
2806:);
E
(P.
025 lL9l
0492i
' 2904):: lwrl
l0)
F
G

C432 0.1

(ML'I

;" .(tlllllz
lltll

3
Will

(lull
i

0423 0.047

5427 I00?

iii [Gil] lmii Inn) in]
lawh
35V|i'(74(lllllli
16,0] )IH l0) (lull (O)
4 5 6

loo]

To drive circuit (9 terminal
To drive circuit © terminal
To drive circuit (7) terminal
To drive circuit ® terminal
To drive circmt ® terminal
To drive circuit {5) terminal

7
Inn)

AM

)4 ul
2

D448

llLli

It

0446

C430 0.047

R440 430K

M

(in)

s 5
it'll lrvi

R428 loll

Wm

U/(lA/o/llii l

(P

. l ("l-A

l
D426

im)

6,») lull log)

)1in
I

in,

NW)

0428 um)

|i,).n'| ill ,) lwl

Lit/Ii

(mil lilo) lil'xl illiill
1 Z 3 4

C435 0.]

him

li/i!\lx

5:}Vl iJii N? i/iil

|o i; 10.1))

)0. ll Ilia) («Lil

mm "M In. m, with
.\il'i\]l L.

li/llli
VDUL, U) 'IiJ/Q

ll .
l1 9

[all lust; li/iil [Mil

l
fiVIth flllll"
)li'i. liuil
3 4 5 7

(Pl)

R449 1.5K

ll',;'
75 ERG/l l

I, 1, 1/

(Li)

(:1 W)

+

C431 lGVlD
+

11)

R487 470K

5 i lllll;
" I 7 iw
W1. «A;
lull Ml lUl ili/i. 1W

5 7

l IC l

I)
HUAZL) fiVIuPC (4812

I
Vi Lil

To power transformer secondary

BR" To power transformer secondary

R485 470K

117.0)

Jim)

I

(ml) (110]

.lil
1

[0i

in)
2

lol

(11 ill

SW) (340 (SUP

ml
3

R465 680

lol

)0)
limo

l0)
a

mo)
Iii/(Ml

[0]

liml
5

lm

SVl i 1. momul
llml )liil) mill

lill
3

4

5

9
)Iill]

U
6

9
(mil

6

l

a 9
[ll] Will )i7.U] l0) |17,0)
ll 17
SVlTii 0i IBP
in) [170) lilxl lo) Iii) (120) [11.4)
7 i 4 5 6

R466 5.6K

R470 5.6K

R471 47K

(17le [lYUl

3

in) will lllfl) mm in) lino] in)

(who
r:\lllt2/loilt5lJ

)(l lll .i/iil ii) (llll) Will

1 Z 3 4 6

R473 470K

)0) (17.0) (12,0;

)0]

R462 100K

R476 47K

9
(.1201 (19.0) (17,01 in)
((3455
SVIT0401 l BlJ
0) [0) (17.0] [mi] [ill in] lo]
1 3 4 5 6

(.170) [If/h] lUl

R460 22K R459 47K

47K

04.57st

MAI50

0456. 451
28D636

C456 50VD.47

l0]

057 ms um

(ii/l 47K

Ul lul mss M

17.0) R483 12K

R432 22K

9 8

(12.1)) (Mil) li)ii in) [vol )l/(ll In)

(ii/oh
SVIILVlOI il-IlP

(1111) ((1) lo) ill/l] llil llil [ill

1 2 3 4 5 S 7

To motor drive circuit
terminal

To motor drive circuit
03 terminal

To motor drive circuit
63 terminal

To motor drive circuit
® terminal

To motor drive circuit
® terminal

To motor drive circuit
terminal

To motor drive circuit
@ terminal

To motor drive circuit
® terminal

To motor drive circuit
terminal

NOTES:

1. S401: Stop switch in "OFF" position. (not»push
condition)

2. S402: Speed selector switch (33 rpm.) in "ON
position. (push condition)

3. 8403: Speed selector switch (45 r.p.rn.) in "OFF
position. (not»push condition)

4. S404: Cueing switch in OFF position. (not-
push condition)

5. $405: Pitch control switch in "ON positon.
(Center position)

5. S406: Stylus-illuminator switch in "OFF" posi-
tion.

7. S407: Cueingup detector switch in "ON" posi-
tion. (Arrri Lift-down position)

8. S408: Cueing-down detector switch in ON"
position. (Arm Lift-down position)

9. 8501: Auto-return switch in "ON" position.

10. 8601: Power switch in "ON position.

(1. S701: Muting switch in "OFF position.

12. [:J Indicated voltage values are the voltage when
the arm lift is at a stop in the lowest position.

13. i ) Indicated voltage values are the voltage when
the arm lift is moving up. (The arm drive motor is
rotating reversely at a high speed.)

14. l ] Indicated voltage values are the voltage when
the arm lift is moving down. (The arm drive motor
is rotating in forward direction at a low speed.)
The drive circuit IC voltage and wave form are

not indicated inside the circuit. 80, refer to the
Voltage and Wave Form of Each IC Terminal.

15. Indicated voltage values are the standard values for
the unit measured by the DC electronic circuit
tester (high impedance) with the chassis taken as
standard, Therefore, there may exist some errors
in the voltage values, depending on the internal
impedance of the DC circuit tester.

16. This schematic diagram may be modified at any

time with the developent of new technology.