Table of Contents
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1 9
1 8
1 7
1 6
■
SCHEMATIC DIAG RAM
MAIN CIRCUIT BOARD
01, 2
IC1
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09. 10
0
2SC2603E
2SC2603E
2SD1468E
M5220L
P BIEO PEAK
P BIEO AMP
SWITCHING
SWITCHING
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DTA144F
250471K
BIAS OSC CONTROL
AUTO TAPE SELECTOR
- 5 -
1 5
14
1 3
1 2
2SK381 D
021. 22
2S014SOR
2S014SOR
050
051
RIO!
TAPE 1 MOTOR SPEED CONTROL
TAPE 2 MOTOR SPEED CONTROL
·•
Dolby NRIMPX IN-OUT
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044
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2SA1115EF
2SC2603E
CONTROL
CONTROL
2SC2603E
2SA1115EF
CONTROL
CONTROL
TAPE 2 CIR MUTE TAPE 2 CIR MUTE
046
047
TAPE 1 MUTING TAPE 1 MUTING
042
043
DTA144F
2SA952K
AUTO TAPE SELECTOR
TAPE 1 CONTROL
CIRCUIT
-6-
1 1
1 0
9
037, 38
2SC2603E
2SA1115EF
2SD1468E
REC AMP CrO,!ON SWITCHING Met1IION SWITCHUIG
025, 26
IC6
031, 32
035, 36
SWITCHING
M5218L
2SC2l!03E
SWITCHING
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CONTROL
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059
2SC2603E
SWITCHING
7
6
8
5
FL METER CIRCUIT BOARD
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IC301, 302
BA6146
FL METER
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IC 302
DRIVE
0301, 302
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AC POWER SUPPLY
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CIRCUIT BOARD
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SWITCH CIRCUIT BOARD
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2SD985K
TLR205
SWITCHING
- 7 -
2
3
4
NOTES:
S1·1~S1 ·10 : Record/pl ay back swilch (shown in playback position).
Playback, ® . . . Record
1 .
2 S2- 1 , S2-2
Dolby NA SWIICh (shown In OUT position).
CD
...
Dolby OUT, ® . . . Dolby IN
3. S3·1~S3-4
Dubbing / M i x i ng swIlch (shown in OUT posilion)
· - · - 7
CD ..
Dubbint / M i x i ng OUT , ® . . . Dubb i ng/Mixing IN
4. S4· 1 , S4·2
Dubbing speed switch (shown in normal posit i on).
� . . . Normal, ® . H i g h
CD . . .
: Tape � pl aybac k switch (shown i n stop position).
5. S6
6 S7
: Tape � F F I REW switch (shown in slop posI1ion).
: Tape ffi playbac k swi1Ch (shown i n slop position).
7 S8
8. S9
: T�pe ffi FFIREW swilch (shown i n stop position).
I
: Tape ffi playback E.O. switch (shown in 70as position)
9. S10
1 0. S12
: Auto tape selec1or (tor Metal mode).
: Aulo tape selec1or ( t o r CrO, mode).
1 1
S13
I
1 2 .
S14
Tape ffi motor sw1lch (Shown in OFF position!.
: Tape � motor switch (shown in OFF position!.
1 3.
S15
'"
1 ·
14. S16
Power ON/OFF switch (shown in OFF position)
t.
AC power voltage selector.
r"
1 00
15. S17
0.01
JFor United Kingdom.)
16. VR1, 2
Tape ffi playback gai n adjustmenl VA.
1 7. VR3, 4
Tape � playback gai n adjustment VA.
•
...I
18. YRS, 6
Tape � i n put leve l control.
1 9. VR7, 8
Tape � overall gain adjustment VA.
20.
1 0
Tape � bias current ad juslmenl V A .
2 1 . VR30 1 . 302 : FL meter adjustment V R (for O dB).
22 LI, 2
MPX c o i l .
V R 9 ,
2 3 . L3, 4
Peaking coil.
24. LS, 6
: Trap coil.
25 L7
Bias oscill ation coi l .
26. Resistance are i n ohms
1 1 4 watt unless specified otherwise .
1 K = 1 .000(Q). 1 M : 1 ,000 K(Q).
27. Cap acity are in micro-farad s (µF) unless specified otherwise.
(Q).
28. All voltage values shown in circuitry are under no signa l condition and
playback mode with volume control at minimum posit i on otherwise
speci
fied.
(
I
. . . .. Voll age va lue at record mode.
29. For measurement use VTVM.
(
-+-
1 i n d i cates the llow of the playback signal .
(
. ... .
, indicates the flow ot t h e recording signal .
(
..:JL
I indicates B + (bias).
(bias).
(
�
) indicates B
-
30. Import an t safety notice.
<!:.
Components 1dent1t1ed by
6
m ark have spec ial characteristics importan t for
O, lA
"
When replacing any of these componenls. use only manutacturer·s specified
salely.
par1s.
�
AC IN
3 1 . The part No. of transistors. IC and diodes mentioned i n the schem atic
diagram st and for produc tion part No. Recording the part No. with
mark.
-- ·
- · __J
the production part No. are d i fferent from the replacement part No.
-
0
Therefore. when plac i ng an oroer for replacement pan , please use the part
No. in the replacement part l i st.
• This schematic diagram may be modified at any time with the development of
new technology .
POWER SUPPLY I
CIRCUIT BOARD
I
■
EQU IVALENT CI RCUIT
IC301 , 302 : BA6146
..---------------------------""\II
t.·,
6
6
(2))
$16
!! . ot
________ ...;
*
SPECIFICATIONS
I n put level contro l . . . MAX
NOTES:
Pl ayback S I N rat io
*
G reater than 45 d B
[Q] . . . . . . For all European areas
Test tape . . . QZZCFM
except U n i ted Kingdom.
Over al I d i stort ion
[§] . . . . . . For Un ited Kingdom.
* Test tape
[NJ . . . . . . For Asia, Lat i n America,
. . . QZZCRA for Normal
Less than 4%
M iddle East and Africa areas .
. QZZCRX for CrO,
[Al . . . . . . For Austra l i a.
. . . QZZCRZ for Metal
. .
[E] . . . . . . For Asian PX.
Q] . . . . . .
G reater than 45 d B
For European PX.
Overall S/N rat io
* Test t ape . . . QZZCRA
(without NAB filter)
- 8 -
RS-B11W
1
A
B
C
D
E
F
G
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