Sharp HT-DV40H (serv.man4) Service Manual ▷ View online
HT-DV40H
5 – 10
Q 804
Q 806
Q 807
QM 7
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
1
2.70m
1
1.97
1
1.93
1
1.90
2
5.40
2
1.97
2
1.37
2
2.90m
3
23.40m
3
7.00
3
1.30
3
3.00m
QM 8
QM 9
QM 16
QM 17
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
1
3.40
1
2.68
1
8.55
1
0.76
2
8.40
2
8.50
2
4.19
2
0.70
3
3.40
3
2.70
3
8.62
3
0.70
4
8.50
4
3.60
IC 900
QM 23
Q 013
Q 014
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
1
0.39
1
0.73
1
2.70
1
2.70
2
1.03
2
0.74
2
1.50
2
1.58
3
2.80
3
0.74
3
1.60
3
1.67
4
0.01
5
0.00
6
12.44
PC 901
IC 901
IC 902
7
1.14
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
8
0.35
1
25.56
1
2.47
1
3.87
2
24.46
2
0.00
2
0.00
Q 906
3
2.14
3
24.46
3
8.08
PIN
NO
VOLTAGE
(V)
4
12.33
D
0.00
Q 901
Q 904
G
356.70
Q 901
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
S
0.00
PIN
NO
VOLTAGE
(V)
E
-34.3
E
0.00
E
-9.15
C
-59.5
C
0.58
Q 908
C
-17.03
B
-34.9
B
0.74
PIN
NO
VOLTAGE
(V)
B
-9.77
E
0.00
C
3.32
B
0.00
HT-DV40H
5 – 11
-MEMO-
HT-DV40H
6 – 1
Audio
CD-DV650W
Service Manual
CD-DV650W
Market
E
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 “Fus-
ible” 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 “Fus-
ible” 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
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.
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.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the main section, DVD is being played back.
3. In the power section, DVD is being played back.
4. In the DVD section, the DVD is stopped.
chassis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the main section, DVD is being played back.
3. In the power section, DVD is being played back.
4. In the DVD section, the DVD 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.
these parts with specified ones for maintaining the safety
and performance of the set.
[2] Types Of Transistor And LED
REF. NO
DESCRIPTION
POSITION
SW501
POWER ON/STANDBY
ON—OFF
SW507
DVD/CD/USB PLAY/PAUSE
ON—OFF
SW508
DISC/USB STOP
ON—OFF
SW509
FUNCTION
ON—OFF
SW510
DISC OPEN/CLOSE
ON—OFF
VR501
VOLUME
MIN—MAX
KRA107 S
KRC102 S
KRC104 S
KRC107 S
KTA1504 GR
KTC3875 GR
KTK5133 S
KTC2875 B
SK536
KTA1298 Y
SC3928 AR
KDS226
KRC102 S
KRC104 S
KRC107 S
KTA1504 GR
KTC3875 GR
KTK5133 S
KTC2875 B
SK536
KTA1298 Y
SC3928 AR
KDS226
B
(3)
E
(1)
C
(2)
TOP
VIEW
KIA78L05
KTA1023 Y
KIA431 A
KTA1023 Y
KIA431 A
VIEW
FRONT
E C B
VIEW
FRONT
1 2 3
(S)(G)(D)
(1)(2)(3)
KIA7809
KIA7812
KIA7812
STH102CF
FRONT
VIEW
VIEW
304VT2H
503BC2E
503BC2E
HSS4148
1N4004
FH3+++
MA111
2SA2012
FH3+++
MA111
2SA2012
TOP VIEW
HT-DV40H
6 – 2
[3] Schematic Diagram
Figure 6-1: MAIN SCHEMATIC DIAGRAM (1/8)
TO DVD PWB-C
TO DISPLAY PWB-B2
MIC_IN
A
B
C
D
E
F
G
H
1
2
3
4
5
6
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