Sharp HT-SB200 (serv.man2) Service Manual ▷ View online
HT-SB200
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
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.
• 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
SW701
POWER ON/STAND-BY
ON—OFF
SW702
VOLUME DOWN
ON—OFF
SW703
VOLUME UP
ON—OFF
SW704
SURROUND
ON—OFF
SW705
FUNCTION
ON—OFF
KiA1117F
B(1) C(2) E(3)
TOP VIEW
TOP VIEW
MA111G
KDS226
KDS226
KRC101S
KRC107S
KRA107S
KRC104S
KRC107S
KRA107S
KRC104S
B
(3)
E
(1)
C
(2)
TOP
VIEW
PCL194H
PCL165S
COM
DIG 1
DIG 1
DIG 2
DIG 2
DIG 2
4
COM
5
A
B
C
D
E
F
G
15 13
1
3
2 14 16
10 12
8
6
7 11
9
A
B
C
E
F
B
G
D
A
C
D
E
F
G
HT-SB200
6 – 2
[3] Schematic Diagram
Figure 6-1: MAIN SCHEMATIC DIAGRAM (1/2)
MAIN PWB-A1
AUDIO SIGNAL
A
B
C
D
E
F
G
H
1
2
3
4
5
6
HT-SB200
6 – 3
Figure 6-2: MAIN SCHEMATIC DIAGRAM (2/2)
PWM_IN
PWM_IN
PWM_IN
D_GND
PWM_IN
T
O AMPLIFIER SECTION
(CNP901)
T
O AMPLIFIER SECTION
(CNP801)
7
8
9
10
11
12
HT-SB200
6 – 4
Figure 6-3: POWER SCHEMATIC DIAGRAM (1/2)
POWER PWB-A2
AUDIO SIGNAL
TO MAIN SECTION
LINE IN 1
LINE IN 2
A
B
C
D
E
F
G
H
1
2
3
4
5
6
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