Chapter 5. Circuit Description; Notes On Schematic Diagram; Types Of Transistor And Led - Sharp SD-AS10H(S) Service Manual

SD-AS10H
E Market SD-AS10H Service Manual SD-AS10H Audio
CHAPTER 5.
CIRCUIT DESCRIPTION

[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 without any symbol is ohm-type resis-
tor. 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 sym-
bol 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
REF NO. DESCRIPTION
SW2 DISC PLAY POSITION
SW4 MODE CAM HOME POSITION
SW5 DISC STOCK POSITION
SW7 DRUM CAM OVERRUN
SWP1 COMPONENT VIDEO OUTPUT/
SCART OUTPUT SELECTOR
SWP780 DISC5
SWP781 DISC4
SWP782 DISC3
SWP783 DISC2

[2] Types of transistor and LED

FRONT
VIEW
E C B
(S)(G)(D)
(1)(2)(3)
KRC102 M
KRC106 M
KTA1266 GR
KTA1273 Y
KTC2875 B
KTC3203 Y
FRONT
VIEW
A C A C
D5SB60
POSITION
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
B
(3)
TOP C
VIEW (2)
E
(1)
2SB709 AR KRC102 S
2SK208 KRC104 S
KRA102 S KRC107 S
KRA105 S KTA1504 GR
KRA106 S KTC3875 GR
KRA107 S CPH3418
TOP VIEW
B C E
KTC4375 Y
KDS120E
KDS121E
KDS160
KDS226
• Schematic diagram and Wiring Side of P.W.Board for this model are
subject to change for improvement without prior notice.
• The indicated voltage in each section is the one measured by Digi-
tal Multimeter between such a section and the chassis with no sig-
nal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the CD section, the CD is stopped.
• Parts marked with "
taining the safety of the set. Be sure to replace these parts with
REF NO.
SWP784 DISC1
SWP785 STOP
SWP786 F FWD
SWP787 PLAY
SWP788 REWIND
SWP789 VOLUME DOWN
SWP790 VOLUME UP
SWP791 TINER (BAND)
SWP792 FUNCTION
SWP793 OPEN/CLOSE
SWP794 POWER
FRONT
VIEW
304BCB32
SARS03
304VT2H3
50AWC2E46
A104GD2A
ACL110NB
FRONT
VIEW
1: DC input (Vin)
2: DC output (Vo)
1 2 3 4
3: GND
4: ON/OFF control
KIA278R09
5 – 1
" ( ) are important for main-
DESCRIPTION
FRONT
VIEW
1: Anode
2: Not connect
1 2 3 3: Kathode
FRONT
VIEW
1: VCC
2: OUT
3: GND
1 2 3 4 5
4: INV
5: STBY
BD9701T
POSITION
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
ON-OFF
FMLG22S