Denon DP-80 - Page 5

SCHEMATIC DIAGRAM OF MODEL DP-80
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KU-265
KU- 263
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NORM, ROT, START (ON) KU-265
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2SA673(C)
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TR3:2SB568(C)
TR4:2SC2168
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BRAKE (OFF)
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C NORM. ROT
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START, BRAKE: (ON) (OV)
VO6C 4.7k(2w) VOEC
REVERSE VOLT. SUPPRESS.
POWER AMP.
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NOTES: 1. ALL RESISTERS ARE IN OHMS, AND CAPACITORS IN
uF UNLESS SPECIFIED.
2. SPECIFIED COMPONENTS MUST BE USED FOR THOSE
* A MARKS.
3. ALL TRANSISTORS AND DIODES UNLESS SPECIFIED
ARE:
TRANSISTORS PNP....... 2SA673(C) OR EQUIVALENT
NPN....... 25C458(C) OR (D)
. FRQUENCY SHOWN AT 33 RPM. AND 45 RPMIN( _).
. WAVEFORMS UNLESS SPECIFIED ARE OBSERVED
AGAINST GROUND TERMINAL.
. CIRCUIT PART VALUES IN( ) ARE USED UNTIL 600
PRODUCTION MODELS.
. CIRCUIT DIAGRAM SHOWING BASIC CIRCUIT IS SUB-
JCTTO MODIFICATION FOR IMPROVEMENT.
KU -263 0.45 mS —+t =
TR1 COLLECTOR |
14
5v
Ov
TR2 COLLECTOR
OAmS—-} be ~eli1.3mS)
1C4: FS-7805M
TRS:2SC458(D) TR6:2SD669A(C)
1C2,3: TA7I2Z2AP(C) or(BASII) TRI~4:2SC458(0)
33 STROBOSCOPE
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R28 22k
REVRS: L
R31! 47k A
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VOO Vss Q-IN Q-OUT FV-OUT FG-OUT
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(2006014108 )
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