QT-CD132H - Sharp Audio Service Manual (repair manual). Page 21

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QT-CD131H/132H
– 21 –
NOTES ON SCHEMATIC DIAGRAM
  1. Tuner
(  ): AM mode
Marking except for (  ): FM mode
2. CD
(  ): Play mode
Marking except for (  ): Stop state
3. Deck section
(  ): Record mode
Marking except for (  ): Playback mode
Display / Control section:
(  ): Active state
Marking except for (  ): CD Function mode at stop state
• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
• Parts marked with “      ” (
          ) are important for
maintaining   the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
• Resistor:
To differentiate the units of resistors, the symbol as K and M
are used: the symbol K means 1000 ohm and the symbol M
means 1000 kohm and the resistor without any symbol is an
ohm resistor. The resistor designated "Fusible" is a fuse type
resistor
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic capacitor,
the expression “capacitance/withstand voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• The indicated voltage in each section is the one measured by
Digital Multimeter between such a section and the chassis
with no signal given.
SW102
RECODE/PLAYBACK
OFF—ON
SW201
FUNCTION/POWER
TAPE—TUNER— CD/
OFF—ON
SW202
SURROUND (132H ONLY)
OFF—ON
SW203
X-BASS
OFF—ON
SW501
BAND
OFF—ON
SW502
TUNER DOWN
OFF—ON
SW503
TUNER UP
OFF—ON
SW504
MEMORY
OFF—ON
REF. NO
DESCRIPTION
POSITION
SW505
PRESET UP
OFF—ON
SW506
PRESET DOWN
OFF—ON
SW601
TAPE MAIN
OFF—ON
SW702
PICKUP IN
OFF—ON
SW761
CD LID OPEN/CLOSE
OFF—ON
SW771
PLAY/REPEAT
OFF—ON
SW772
STOP
OFF—ON
SW773
TRACK UP/CUE
OFF—ON
SW774
TRACK DOWN/REVIEW
OFF—ON
Figure 21 TYPES OF TRANSISTOR
REF. NO
DESCRIPTION
POSITION
E C B
(S) (G) (D)
(1) (2) (3)
FRONT
VIEW
2SA673-C
2SC1815 GR
2SC1674 K
E C B
FRONT
VIEW
S8050D
E B C
FRONT
VIEW
S9012H
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