Notes On Schematic Diagram; Type Of Transistor And Led - Sharp MD-M3 Service Manual

MD-M3/M1
• 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 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 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
• Schematic diagram and Wiring Side of P.W.Board for this model are
subject to change for improvement without prior notice.
REF.NO. DESCRIPTION
SW1 CD Lid
SW2 Pickup In
SW1952 Dirtect
SW1953 Lead In
SW1954 Play
SW1955 Rec
SW1956 Loading
SWD01 POWER
SWD02 DISPLAY
SWD08 MD EJECT
SWD10 SURROUND
SWD11 EQUALIZER
SWD12 X-BASS
SWD13 AUX
(FRONT VIEW)
FRONT
VIEW
E C B
B C E
2SB1375 KTA1023 Y
2SD2012
FRONT VIEW
1N4004S 1SS133
KV1236Z23F

NOTES ON SCHEMATIC DIAGRAM

POSITION
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF

TYPE OF TRANSISTOR AND LED

FRONT
FRONT
VIEW
VIEW
E C B
E C
(S) (G) (D) (S) (G) (D)
(1) (2) (3)
(1) (2) (3)
HSC1815 GR
HSA1015 GR
KRA107 M KTA1266 GR
KRC104 M KTA1270 Y
KRC107 M KTA1271 Y
KTC3199 GR KTC3203 Y
2SC2878 A
2SC380 O
Figure 26 TYPES OF TRANSISTOR/DIODE AND LED
– 26 –
• 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 CD section, the CD is stopped.
• Parts marked with "
" (
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. DESCRIPTION
SWD14 TUNER
SWD15 CD
SWD16 MD
SWD19 FF
SWD20 REV
SWD21 PLAY
SWD22 STOP
SWD23 HIGH (MD-M3 ONLY)
SWD24 NORMAL (MD-M3 ONLY)
SWD24 CD MD EDIT (MD-M1 ONLY)
SWD25 REC
MEMORY
SWD26
SWD28 VOLUME
SWR11 DEMO
B
(D)
(3)
C
TOP
(G)
VIEW
E
(2)
(S)
(1)
B RNC1404
RN1406
RN2404
RNC1407
2SA1162 G
2SC2412 KR
2SK2909
SLI342UCB
) are important for maintaining
POSITION
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
FRONT FRONT
VIEW VIEW
G D S B C E
2SK1473 2SA1314 C
TOP VIEW TOP VIEW
SB007-03Q
SB0209CP
FRONT
VIEW
AC AC
TS4B03GM