Sharp CD-DH790N, Руководство по обслуживанию

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CD-DH790N
6 – 1
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Notes On Schematic Diagram
[2] Types Of Transistor And LED
• 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
VR701 VOLUME MAX -- MIN
DESCRIPTION POSITION
• 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 main section, a tape is being playback.
3. In the power section, a tape is being playback.
4. In the CD section, the CD is stopped.
•
taining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the
set.
SW701 ON/STAND-BY ON -- OFF
SW702 FUNCTION ON -- OFF
SW703 DISC/USB/TAPE STOP/TUNING DOWN ON -- OFF
SW704 DISC/USB/iPod PLAY or PAUSE/
TAPE PLAY/TUNING UP ON -- OFF
SW705 OPEN/CLOSE ON -- OFF
Parts marked with “ ” ( ) are important for main-
KRA102S
KRC107
KRC104S
H1A
KTA1504GR
KTC3875GR
KRA107S
B
(3)
E
(1)
C
(2)
TOP
VIEW
TOP VIEW
TOP VIEW
S8550
KTA1274Y
S8050
KTC3199
KTA1266
KTC3203Y
VIEW
FRONT
E C B
(S)(G)(D)
VIEW
FRONT
VIEW
FRONT
VIEW
FRONT
1
B C E
(1)(2)(3)
1N4004
DRL204F
MA111
TOP VIEW
HSS4148
FRONT
VIEW
343VC3F
TDA8920CJ B772
KIA7805A
050N60P
B C E
HD
10XB60F
AC AC - +
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