Chapter 6. Circuit Schematics And Parts; Notes On Schematic Diagram; Types Of Transistor And Led - Sharp CD-SW330 Service Manual

CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT

[1] Notes On Schematic Diagram

• Resistor:
To differentiate the units of resistors, such symbol as K
and M are used: the symbol K means 1000 ohm and
the symbol M means 1000 kohm and the resistor with-
out any symbol is ohm-type resistor. Besides, the one
with "Fusible" is a fuse type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used:
this symbol P means pico-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
• Schematic diagram and Wiring Side of P.W.Board for
this model are subject to change for improvement with-
out prior notice.
REF. NO DESCRIPTION
SW701 POWER ON /STAND-BY
SW702 CD
SW703 TUNER (BAND)
SW704 AUX
SW705 TAPE
SW706 STOP
SW707 PLAY
SW708 FAST FORWARD/PRESET UP

[2] Types Of Transistor And LED

FRONT
VIEW
E C B
(S)(G)(D)
(1)(2)(3)
KTA1271 Y
KTA1273 Y
KTA1274 Y
KTA1266 GR
FRONT
VIEW
1 2 3
KIA7805
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
B
(3)
TOP
VIEW
E
(1)
KRA102 S
KRC107 S
KRC102 S
KRC104 S
KTC3199 GR
KTA1504 Y
KTC3200 GR
KTC3875 GR
KTC3203 Y
KTA1504 GR
KTC3205 Y
KTA1554 T
SS8550H
TOP VIEW
KDS184
KDS226
6 – 1
• The indicated voltage in each section is the one mea-
sured by Digital Multimeter between such a section
and the chassis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
• Parts marked with "
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.
REF. NO
SW709 FAST REWIND/PRESET DOWN
SW711 DISC 1
SW712 DISC 2
SW713 DISC 3
SW714 DISC 4
SW715 DISC 5
SW716 OPEN/CLOSE
VR701 VOLUME
TOP VIEW
C
(2)
1N4004S
DRL204F
MA111
FRONT
VIEW
A C A C
TS20P05G
D10XB60F
CD-SW330
" ( ) are important
DESCRIPTION
HSS4148
FRONT
VIEW
SLR342VC
SDPB40F2A
343BD2S
503BC2E
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
MAX—MIN