Sharp XL-HF401PH (serv.man5) Service Manual ▷ View online
XL-HF401PH
7
– 2
-MEMO-
XL-HF401PH
– 1
-MEMO-
7 – 3
XL-HF401PH
8 – 1
CHAPTER 8. 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.
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
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
REF. NO
N
I
M
-
-
X
A
M
E
M
U
L
O
V
1
0
7
R
V
DESCRIPTION
POSITION
type
•
Schematic diagram and Wiring Side of P.W.Board for this model are
subject to change for improvement without prior notice.
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.
tal Multimeter between such a section and the chassis with no sig-
nal given.
1. In the tuner section,
indicates AM
indicates FM stereo
indicates AM
indicates FM stereo
2. In the CD section, the CD is stopped.
•
Parts marked with “
(
) are important for main-
taining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the
set.
specified ones for maintaining the safety and performance of the
set.
F
F
O
-
-
N
O
Y
B
-
D
N
A
T
S
/
N
O
F
F
O
-
-
N
O
N
O
I
T
C
N
U
F
1
0
7
W
S
F
F
O
-
-
N
O
E
S
U
A
P
/
Y
A
L
P
2
0
7
W
S
F
F
O
-
-
N
O
REVERSE
3
0
7
W
S
F
F
O
-
-
N
O
OPEN / CLOSE
4
0
7
W
S
F
F
O
-
-
N
O
P
O
T
S
5
0
7
W
S
SW706
FORWARD
SW707
ON -- OFF
“
PWB Switch Location
KRA102S
KRC104S
KTC3875GR
KTC2875B
KRC104S
KTC3875GR
KTC2875B
B
(3)
E
(1)
C
(2)
TOP
VIEW
G
(2)
S
(1)
D
(3)
TOP
VIEW
KTA1271Y
VIEW
FRONT
E C B
(S)(G)(D)
VIEW
FRONT
B C E
(1)(2)(3)
TOP VIEW
343VC3F
KIA7805A
KIA7809A
KTB772Y
KIA7809A
KTB772Y
DA1010
GS1GLTP+
GS1GLTP+
TOP VIEW
EXA680WJ
EXA694WJ
EXA696WJ
EXA607WJ
EXA718WJ
EXA723WJ
EXA738WJ
EXA704WJ
EXA704WJ
2SK3018
KMA204P
KMA204P
FRONT VIEW
A
C
A
C
XL-HF401PH
8 – 2
[3] Schematic Diagram
Figure 8-1: MAIN SCHEMATIC DIAGRAM (1/2)
MAIN PWB-A1
FOR
MICOM REFLASH
ONL
Y
FROM
SMPS PWB-B
CON2
SUBWOOFER
PRE-OUT
FROM
SMPS PWB-B
CON2
L-CH
R-CH
AUDIO (ANALOG)
AUDIO (DIGITAL)
SIGNAL FLOW
7
8
9
10
11
12
A
B
C
D
E
F
G
H
1
2
3
4
5
6
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