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TEAC
SCHEMATIC DIAGRAM
BXx-500
1
2
IN/OUTPUT PCB
SW PCB
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MAIN PCB
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VOLTAGE
SELECTOR
MAIN PCB
2aov RED
220v_
VIO
Ff
U301, U302
NJM45590D
Q111, 0211
2SC1815 (GR)
D101 ~ D104
182473
Foor
3
303
HA12002
Q112, 0212
28949 (Y)
D201 ~ 0204
0.1#1200/300v
Sy
(CD
Q113, 0213
2SC2229 (Y)
Bye
tose)
182471
.
117V
BRN
Q101, Q201
2SA1015 (GR)
Q114, 0214
2SC2235 (Y)
D205 ~ 0207
AC 100V
AC OV
a
102, 0202
2SB737 (S) or (R)
Q115, 0215
2SA965 (Y}
0108, 0208
HZ6A3U
>
4ov
A\},001
3
103, Q203
2SD786 (S) or (R)
7,
Q104, 0204
28C1815 (GR)
0116, 0216
280718 (0)
D301, D302
HZ12BIL
Q105, 0205.
2SC2240 (GR)
Q117, 0217
2SB680 (0)
0303
WZ270
TA/I25V
Q118, 0218
2SC2240 (GR)
D304
182471
Q106, 0206
2SC2240 (GR)
D305
3D4B41
°
Q107, Q207
2SA995 (F)
Q301
2SC1815 (GR)
0306, D307
WZ150
108, 0208
2SK 109 (C)
Q302, 0303
2SA1015 (GR)
0308
182471
(PLUG)
0109, 0209
28C2259 (F)
(JACK)
Q110, 210
2SA970 (GR)
VOLTAGE
SELECTOR
GENERAL
EXPORT
NOTES
1.
ALL
RESISTORS
ARE
%WATT,
5%, UNLESS
MARKED
OTHERWISE.
RESISTOR
VALUES
ARE
IN OHMS
(k= 1,000 OHMS,
M = 1,000,000 OHMS).
2.
TONE
SWITCH
IN THE
OUT
(PRE JUMP)
POSITION.
PONENTS.
THEY
MUST
ALWAYS
BE REPLACED
WITH
COMPONENTS
- REFER
TO THE
TEAC
PARTS
LIST AND
ENSURE
EXACT
REPLACEMENT.
ALL
CAPACITOR
VALUES
ARE
IN MICROFARADS
(p = PICOFARADS).
DC VOLTAGES
MEASURED
WITH
NO SIGNAL
INPUT,
AND
WITH
THE
APARTS
MARKED
WITH
THIS
SIGN
ARE
SAFETY
CRITICAL
COM-
IDENTICAL
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