Sharp XL-UR27H (serv.man2) Service Manual ▷ View online
XL-UR27H
5 – 2
IC3
IC3
IC3
IC3
IC3
IC1
IC3
IC3
IC3
TXD1
USB_REQ
D +
D -
RESET
88
87
89
1
80
79
71
92
93
RXD1
12
14
15
18
17
16
IC7
IC7
9
10
22
IC7
12
23
21
13
19
20
AIN
BCKI
LRCKI
SDTO
LRCK
SCLK
XL-UR27H
5 – 3
[2] IC Voltage
XL-UR27H
6 – 1
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
resistor without any symbol is ohm-type resistor.
Besides, the one with “Fusible” is a fuse type.
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 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
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
improvement without prior notice.
improvement without prior notice.
• The indicated voltage in each section is the one
measured by Digital Multimeter between such a
section and the chassis with no signal given.
section and the chassis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
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.
( ) 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 “
“ (
) are
important for maintaining the safety of the set. Be
sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
[2] Types Of Transistor And LED
REF. NO
DESCRIPTION
POSITION
SW701
POWER ON /STAND-BY
ON—OFF
SW702
FUNCTION
ON—OFF
SW703
PLAY/PAUSE
ON—OFF
SW704
STOP
ON—OFF
VR701
VOLUME
MAX—MIN
KTA1504 GR
KRC102 S
KRC104 S
KTC3875 GR
KTA1544 T
KRC107 S
KRA102 S
KRC102 S
KRC104 S
KTC3875 GR
KTA1544 T
KRC107 S
KRA102 S
B
(3)
E
(1)
C
(2)
TOP
VIEW
TOP VIEW
KTA1271 Y
KIA78L05
KTC2874 B
KTC3203 Y
KTA1023 Y
KIA78L05
KTC2874 B
KTC3203 Y
KTA1023 Y
VIEW
FRONT
E C B
(S)(G)(D)
(1)(2)(3)
MA111
1N4004
1N4004
HSS4148
1N4148
1N4148
D3SBA60F
A C
A C
VIEW
FRONT
FRONT
VIEW
VIEW
304VT2H
XL-UR27H
6 – 2
[3] Schematic Diagram
Figure 6-1: MAIN AND USB SCHEMATIC DIAGRAM (1/6)
AUDIO IN SOCKET
B043AW
FM SIGNAL
CD SIGNAL
AUDIO SIGNAL
CD SIGNAL
AUDIO SIGNAL
USB PWB-A4
MAIN PWB-A1
A
B
C
D
E
F
G
H
1
2
3
4
5
6
Click on the first or last page to see other XL-UR27H (serv.man2) service manuals if exist.