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Bosch BLAUPUNKT artech MX-70 Service Manual page 5

Mainamplifier

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DRIVE AMPLIFIER
INPUT
°
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| INPUT-LEVEL|
THERMO
SENSOR
PROTECT
IND.
(Wy
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a
Q730, 732, 734, 736, 738, 740, 742
|
|
VARIABLE BIAS
& LIMITER
O723,:Je0. 1¢1
O729:.. 734.733
O735,.737, 139
Q74|
PRE DRIVER
WITH CURRENT
MIRROR
OPED;
LL
O79. 721
1, POWER
LED'S
»COMPRESSOR
DRIVER
|.
POWER LEVEL
INDICATOR
POWER AMP.
DRIVER
"
Q601, 603, 605
Q607, 609, 61 |
RIGHT CH. IC'S
1, IC905, IC904
Q743, 745
|
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RIGHT CH. TRANSISTORS.
+ Q602, 604. 606
| Q608 610, 612.614
DC-SERVO
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OVERLOAD
DETECT
DC DETECT
RY802
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SPEAKERS
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RY803
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REGULATOR
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SPEAKERS
Q80!1~Q808
B
TO LEVEL IND.
.
Q809~Q818
RY8O
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POWER TRANSFORMER
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|
« SPEAKER SWITCHES
|
TO POWER
ite
.
32
TRANSISTORS
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POWER SWITCH
]
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| 220V~/ S0Hz
RYSO |
POWER
SUPPLY
RIGHT CH. TRANSISTORS
Q702, 704, 706, 708, 710, 712,714
RIGHT CH. IC
Q716, 718, 720, 722, 724, 726, 728
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