Chapter 6. Circuit Schematics And Parts; Notes On Schematic Diagram; Types Of Transistor And Led - Sharp XL-MP150 Service Manual

E XL-MP150 CHAPTER 6. Market XLMP150 Service Manual Audio
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 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
• 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 CLAMP
SW1A PICKUP IN
SW2 TRAY SW1
SW3 TRAY SW2
SW4 DISC
SW701 POWER ON/STAND-BY
SW702 CLOCK/TIMER
SW703 REC/PAUSE
SW704 PRESET UP
SW705 PRESET DOWN
SW706 REVERSE PLAY
SW707 REVERSE MODE
SW711 VIDEO/AUX
SW712 TUNER (BAND)
SW713 PLAY/REPEAT

[2] TYPES OF TRANSISTOR AND LED

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
FRONT
VIEW
E C B
(S) (G) (D)
(1) (2) (3)
KTA1271 Y KTC3203 Y
KTA1273 Y KTC3194 Y
KTA1274 Y KTC2026
KTC3199 GR KTC3205 Y
KTC3200 GR
• 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 main section, a tape is being played back.
3. In the deck section, a tape is being played back.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
• Parts marked with "
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
SW714 TUNING/TIME DOWN
SW715 TUNING/TIME UP
SW716 STOP
SW717 CD
SW718 TAPE
SW719 MEMORY/SET
SW720 EQUALIZER
SW721 X-BASS/DEMO
SW722 DIRECT PLAY
SW723 DISC 1
SW724 DISC 2
SW725 DISC 3
SW726 DISC 4
SW727 DISC 5
SW728 OPEN/CLOSE
B
(3)
TOP
C
VIEW
(2)
E
(1)
KTA1504 Y
KTA1504 GR
KTC3875 GR
KRA102 S
KRA107 S
KRC104 S
KRC102 C
6 – 1
" ( ) are important for
DESCRIPTION
FRONT
VIEW
SVC347S
SVC230C
XL-MP150
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF