Circuit Schematics And Parts Layout; Notes On Schematic Diagram; Types Of Transistor And Led; Chapter 6. Circuit Schematics And Parts - Sharp CD-DK890N 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 resis-
tor without 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 improve-
ment without prior notice.
REF. NO DESCRIPTION
JOG701 VOLUME
SW701 POWER ON /STAND-BY
SW702 CD
SW703
TAPE (1 2)
SW704 TUNER (BAND)
SW705 PLAY/PAUSE
SW706 STOP
SW707 FAST REWIND/PRESET DOWN
SW708 TUNING DOWN

[2] Types Of Transistor And LED

KTA1271 Y
KTA1273 Y
KTA1274 Y
KIA78L05
KIA7805AP
POSITION
MAX—MIN
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
B
FRONT
(3)
VIEW
E
(1)
E C B
(S)(G)(D)
(1)(2)(3)
KTC3199 GR
KTC3200 GR
KTC3203 Y
TOP VIEW
KDS184
• The indicated voltage in each section is the one
measured 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 "
•
tant for maintaining the safety of the set. Be sure to
replace these parts with specified ones for maintain-
ing the safety and performance of the set.
REF. NO
SW709
SW710
SW711
SW712
SW713
SW714
SW715
SW716
SW717
TOP VIEW
TOP
C
VIEW (2)
MA111G
KTA1504 GR
1N4004
KRA107 S
KRC102 S
DRL204F
KRC104 S
KTA1504 Y
KTC3875 GR
KRC107S
FRONT
VIEW
AC AC
D10XB60F
6 – 1
" (
DESCRIPTION
FAST FORWARD/PRESET UP
OPEN/CLOSE
DISC 5
DISC 4
DISC 3
DISC 2
DISC 1
TUNING UP
AUDIO IN/IPOD
HSS4148
FRONT
VIEW
SLR342VC
CD-DK890N
) are impor-
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF