Table of Contents
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■
ut- 11
=
111','
Ref. No.
I
Part No.
Part Name & Description
1
2
I
■
SCHEMATI C DIAG RAM
COILS
MAIN CIRCUIT BOARD
L 1, 2
QLM9Z9K
M.P.X. Coil
L 3, 4
OLOX0332KWA Peaking Coil
0
L 5, 6
OLOX0343KWA Trap Coil
L 7
OLB0205K
Bias Oscillation Coil
A
COMBI NATION PARTS
CR
EXRP102K 103W
CR 3, 4
EXRP220K124
1
FLUORESCENT DISPLAY TUBE
FL 1
OSiFL012F
FL Meter
TRANSFORMERS
T 1 [OJ 0. QLPD96ELE
AC Power Transformer
B
1 [BJ 0. OLPD97ELE
AC Power Transformer
T 1 [N]IF)
{J) 0. OLPN94ELE
AC Power Transformer
T 1 [A) 6. O LPA82ELE
T
AC Power Transformer
FUSES
F 1
[D][B) 6. ! XBAQ0004
Fuse (T 1 A)
t� )! ]
kE�Cif-'_, 1 .1"8•:� .. HlAC
F 2, 3
_
r,;:-i
n3
.M
[D][B) 6.1 X BAQ0007
Fuse (T 400mA)
--+
.Cl· .....:;.� : ►+-
F 4 [N][F)
1
-,.,,_�I
(J) 6. XBA2E03NR5
Fuse (0.3A)
J
,!.,
0 1
1- --...
1 4
C
2SC2603E
SWITCHING
SWITCHES
S 1
OSSA209TA
Slide Switch (Record/
Playback Selector)
S 2, 3, 4
OSWX318A
Push Switch (Dolby NR/
Dubbing Speed/Dubbing/
Mixing)
S 6
QSB0251 i U
Leaf Switch !PLAY)
S 7
QSB0314
Leaf Switch !FF/REW)
S B
QSB0251 i U
Leaf Switch !PLAY)
5 9
QSB0314
Leaf Switch !FF/REW)
S 1 0
QSB0313C
Leaf Switch (Play EOIAuto
Tape Selector)
l l NE IN
lU4
IM
IC,
S 1 1
QSB0251 i U
Leaf Switch (Pause)
S 12, 1 3
OSB0313C
Leaf Switch (Play EQIAuto
017,
18
D
2SK381 D
Tape Selector)
MIX AMP
S 14, 1 5
QSB01 95
Leaf Switch (Motor)
- Cll
S 16
6. OSW1 1 1 7AT
Push Switch
SI W I
0 1 7
(Power ON/OFF)
5 1 7
[Bl OSR1407H
AC Power Voltage
[N][F][J) 6.
Selector
JACKS
J 3
QJA0269H
M i crophone Jack
J 4
QJA0267H
Headphones Jack
CONN ECTORS
E
CN 1
QJS1 921TN
3 P Socket
CN 2
OJS1 920TN
2 P Socket
CN 3
QJT1054
Contac1
CN 4
QJP1 920TN
2P Plug
CN 5
QJP1 921TN
3 P Plug
CN 6
QJP1 923TN
9 P Plug
CN 7
SJT777
Pin Terminal
CN 8
QJT005�
Check Pin
CN 9
QJP1 924TN
1 2 P Plug
CN 1 0
QJS1 923TN
9 P Socket
CN 1 1
OJS1 924TN
1 2 P Socket
CN 1 2
QJT1090
Check Pin
F
G
- 13 -
3
6
4
5
1S5133
D14
o
027
015, 16, 21
07,
13
054
1 SR35200
152473
f ! .lt
D10
MC911
2SA1115EF
10,
a�
TAPE 1 MUTING
�6�
7
au
CONTROL
2SA11 1 5EF
2SC2603E
DTA1 14F
OTA114F
TAPE 2 CIR MUTE TAPE 2 CIA MUTE
044
045
041
TAPE 1 SPEED CONTROL
TAPE 1 CIR MUTE CONTROL
CONTROL
CONTROL
020
042
043
250471K
DTA144F
2SA952K
DTA144F
BIAS OSC CONTROL
AUTO TAPE SELECTOR
AUTO TAPE SELECTOR
TAPE 1 CONTROL
CIRCUIT
- 14-
7
8
9
10
P. l'32
020
IC,
032
034
. .
031
033, 34
2SC2tiU3E
Cr0
/0FF SWITCHING
1
'--+------------+-----------Ii
D18
041
019 ,
42, 43
- - --
.e
0
r
MC911
��s
,
s� ;
s
MC921
1
5
200
, , )- ---!...J
.1. ,-/ =
·, ,
:
33
.
1
046
Si l l :
047
041
049
:
2SA1115EF
2SC2603E
L _ ___
,
2SC26)3E
2SA1115EF
I
I
TAPE 1 MUTING TAPE 1 MUTING
LINE MUTING
LINE MUTING
I
CONTROL
CONTROL
CONTROL
CONTROL
059
2SC2603E
SWITCHING
1 1
1 2
1 3
FL METER CIRCUIT BOARD
m
1 1 ,t OUT
n.
(.__p
ICH
IC301, 302
� f-----.-�
BA6146
DRIVE
Fl METER
. .
P.212
.;7'0�
j
IC 302
,
-
0301, 302
ll
2SC2603E
,-
Mftrlt
PEAK SETI
; --�
n
RESET
•
A
._
___
......
D2t
"""
,
IOK
"
4U, '8)
-•
0301
D301
MTZ8R2B
YA302
R301
3.':K
D44
0 1 SR35200
••
I
. .
I
L
I
I
058
035.....,37
2SD985K
TLR205
SWITCHING
- 15 -
1 4
1 5
1 7
NOTES:
1 6
1 . s1-1 �s1 -1 0 : Record/playback switcn (shewn i n playback position).
G) . . . Playback. � . . . Record
2. S2-1 , S2-2
DolDy NR switch (shown in OUT position).
(D ... Dolby OUT, @ . . . Dolby I N
· - · - 7
3. 53-T�S3-4
Dubbing/M ix ing switch (shown in OUT position).
, - -·-
(D . . . Dubbint/Mixing OUT, @ . . . Dubbi ng/Mix ing I N
: Dubbing speed switch (shown in normal position).
B
(D . . . Normal, @ . . . High
54·1, S4-2
4.
: Tape � pl ayback switch (shown i n stop position).
5. S6
6. 57
: Tape � FF/REW switch (shown in stop position).
t,
I
7.
: Tape m playback switch (shown in stop position).
Si1
8. S9
: T�pe m FF/REW switch (Shown in stop position).
9. S10
: Tape m playback E O. switch {shown i n 70µs position).
SB
I
10. S12
· Auto tape selector (for Metal mode).
11. S1 3
Auto tape selector (for CrO, mode).
12. S1 4
: Tape m motor switch (shown i n OFF position).
SI� 1/
�
00
13. S1 5
: Tape � motor switcn (shewn in OFF position).
0.01
I
14. S1 6
Power ON/OFF switch (shown in OFF position).
15. S1 7
: AC power voltage selector.
[For United Kingdom .)
1 6. VR1, 2
: Tape m playback gain adjustment VR.
,. I
1 7. VR3, 4
. Tape [l] pl ayback gain adjustment VA
�c
18. VRS, 6
: Tape � input level control.
1 9. VR7, 8
: Tape � overall gain adjustment VR.
20. VR9, 10
: Tape � bias current adjustment VA.
--- · --- · - - - · -'
21 VR301 , 302 : FL meter adjustment VR (for 0 d B).
• For [§] mark area:s.
22. L1, 2
MPX coil.
23. L3, 4
Peaking coil.
24. L5, 6
: Trap coi l.
25. L7
: Bias osci llation coil.
26. Resistance are in ohms (Q), 1 /4 watt unless specified otherwise.
1 K = 1 ,000(Q), 1 M = 1 ,000 K(Q).
27. Capacity are in micro-farads (µF) unless specified otherwise
28. All voltage values shown in circuitry are under no signal condition and
playback mode with volume control at minimum position otherwise
specified.
I
)
. . . . . . Voltage value at record mode.
29. For measurement use VTVM.
( ...,_I indicates the
of the playback signal .
I
• •
•) indicates the flow of the recordi ng signal.
flow
I indicates
B
+ (bias).
1
_±_§_
I
�
I
indicates B
(bias).
-
30. Important safety notice.
Components identified
.6,
mark have special characteristics important for
safety.
by
When replacing any of these components, use only manufaclurer's specified
parts.
31 The part No. of transistors, IC and diodes mentioned in the schematic
diagram stand for production part No. Recording lhe part No. with
mark,
i=:· -- · -- · --
the production part No. are d i fferent froll'.1 the replacement part No.
• For �[EJQ] mal1< areas.
Therefore, when placing an order for replacement part, please use the part
O
--· -'
No. i n the replacement part l ist.
• This schematic diagram may
modified at any time with the development of
new technology.
be
1
-
[ - - -
DJI AC POWER SUPPLY
CIRCUIT BOARD
I
I
■
EQU IVALENT CI RCUIT
IC301 , 302 : BA6146
I
611
t,
C/GO
O.Ol
t,
CHS
• W .'ICOO ._ __________
--,
1
• For � m.ark areas.
t=::· -- - · -- - - -- -
__J
SPECI FICATIONS
* I n put level control . . . MAX
NOTES:
Playback S/N rat io
G reater than 45 d B
(Q] . . . . . . For all European areas
Test tape . . . QZZCFM
*
except U n ited Kingdom.
Overall d i stortion
[§] . . . . . For U n ited Kingdom.
Test tape
·
*
[El] . . . . . . For Asia, Lat i n America,
. . . QZZCRA for Normal
Less t h a n 4 %
Middle East and Africa areas.
. . . QZZCRX for CrO
For Australia.
2
!Al . . . . . .
. . . QZZCRZ for Metal
[El . . . . . . For Asian PX.
Q] . . . . . . For European PX.
Overal l S/N ratio
G reater t h a n 45 d B
Test tape . . . QZZCRA
(without NAB f i lter)
*
15
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