Sharp HT-CN300H Schematic
HT-CN300H
SERVICE MANUAL
No. S8276HTCN300H
HOME CINEMA COMMAND
MODEL HT-CN300H
HT-CN300H Home Cinema Command consisting of HT-CN300H
(main unit), CP-CN300HF (front speakers), CP-CN300HC
(center speaker) and CP-CN300HR (surround speakers).
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
CONTENTS
Page
IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
DISASSEMBLY.................................................................................................................................................................. 6
ADJUSTMENT ................................................................................................................................................................... 8
NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................ 9
TYPES OF TRANSISTOR AND LED................................................................................................................................. 9
BLOCK DIAGRAM ........................................................................................................................................................... 10
SCHEMATIC DIAGRAM .................................................................................................................................................. 14
VOLTAGE ........................................................................................................................................................................ 31
WIRING SIDE OF P.W.BOARD....................................................................................................................................... 32
FUNCTION TABLE OF IC................................................................................................................................................ 38
FL DISPLAY..................................................................................................................................................................... 44
WIRING OF PRIMARILY SUPPLY LEADS (FOR U.K. ONLY) ........................................................................................45
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING METHOD (FOR U.K. ONLY)
SHARP CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
HT-CN300H
PROBE
AC
OUT
UNIT
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW
WITHSTANDING
VOLTAGE TESTER
IMPORTANT SERVICE NOTES (FOR U.K. ONLY)
Before returning the unit to the customer after completion of a
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
Set name set value
Withstanding Voltage Tester
Test voltage 4,240 VPEAK
3,000 VRMS
Set time 6 secs
Set current (Cutoff current) 4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzer sounds.
– 2 –
HT-CN300H
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
SPECIFICA TIONS
HT-CN300H (For U.K.)
General
Power source
Power consumption
Dimensions
Weight
Terminals
( * ) This power consumption value is obtained when the demonstration mode is
cancelled in the power stand-by mode.
AC 230 V, 50 Hz
Power on: 195 W
Power stand-by: 0.5 W (*)
Width: 230 mm (9-1/8")
Height: 377 mm (14-7/8")
Depth: 400 mm (15-3/4")
11.5 kg (25.4 lbs.)
Front speakers, Centre speaker and Surround speakers:
6 ohms
Monitor output: S-video/video
Video output (Video 1): RCA type
Audio output (Video 1): RCA type (L/R)
Video input (Video 1): RCA type
Audio input (Video 1): RCA type (L/R)
Audio input (Auxiliary): RCA type (L/R)
Video input (Video 2): RCA type
S-video input (DVD): S-terminal
Video input (DVD): RCA type
Audio input (Video 2): RCA type (L/R)
Digital input (DVD): Optical
Digital input (DVD): Coaxial
Amplifier
Output power
(2 ch)
Front speakers:
RMS: 60 W (30 W + 30 W) (10 % T.H.D., 1 kHz)
Subwoofer:
RMS: 30 W (10 % T.H.D., 100 Hz)
(Surround)
Front speakers:
RMS: 60 W (30 W + 30 W) (10 % T.H.D., 1 kHz)
Centre speaker:
RMS: 30 W (10 % T.H.D., 1 kHz)
Surround speakers:
RMS: 60 W (30 W + 30 W) (10 % T.H.D., 1 kHz)
Subwoofer:
RMS: 30 W (10 % T.H.D., 100 Hz)
Tuner
Frequency range
CP-CN300HF/CP-CN300HC/CP-CN300HR (For U.K.)
Type
Maximum input power
Rated input power
Impedance
Dimensions
Weight
Subwoofer (For U.K.)
Type
Maximum input power
Rated input power
Impedance
Specifications for this model are subject to change without
prior notice.
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Full Range Speaker System (Magnetic shield)
80 mm (3-1/8") Speaker
60 W
30 W
6 ohms
Width: 104 mm (4-1/8")
Height: 110 mm (4-3/8")
Depth: 123 mm (4-7/8")
0.8 kg (1.8 lbs.)/each
Subwoofer System (Magnetic shield)
160 mm (6-1/4") Woofer
60 W
30 W
6 ohms
HT-CN300H (Except for U.K.)
General
Power source
Power consumption
Dimensions
Weight
Terminals
( * ) This power consumption value is obtained when the demonstration mode is
cancelled in the power stand-by mode.
AC 230 V, 50 Hz
Power on: 195 W
Power stand-by: 0.5 W (*)
Width: 230 mm (9-1/8")
Height: 377 mm (14-7/8")
Depth: 400 mm (15-3/4")
11.5 kg (25.4 lbs.)
Front speakers, Centre speaker and Surround speakers:
6 ohms
Monitor output: S-video/video
Video output (Video 1): RCA type
Audio output (Video 1): RCA type (L/R)
Video input (Video 1): RCA type
Audio input (Video 1): RCA type (L/R)
Audio input (Auxiliary): RCA type (L/R)
Video input (Video 2): RCA type
S-video input (DVD): S-terminal
Video input (DVD): RCA type
Audio input (Video 2): RCA type (L/R)
Digital input (DVD): Optical
Digital input (DVD): Coaxial
Amplifier
Output power
(2 ch)
Front speakers:
RMS: 60 W (30 W + 30 W) (DIN 45 324)
Subwoofer:
RMS: 30 W (DIN 45 324)
(Surround)
PMPO: 720 W
Front speakers:
MPO: 120 W (60 W + 60 W) (DIN 45 324)
RMS: 60 W (30 W + 30 W) (DIN 45 324)
Centre speaker:
MPO: 60 W (DIN 45 324)
RMS: 30 W (DIN 45 324)
Surround speakers:
MPO: 120 W (60 W + 60 W) (DIN 45 324)
RMS: 60 W (30 W + 30 W) (DIN 45 324)
Subwoofer:
MPO: 60 W (DIN 45 324)
RMS: 30 W (DIN 45 324)
Tuner
Frequency range
CP-CN300HF/CP-CN300HC/CP-CN300HR (Except for U.K.)
Type
Maximum input power
Rated input power
Impedance
Dimensions
Weight
Subwoofer (Except for U.K.)
Type
Maximum input power
Rated input power
Impedance
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Full Range Speaker System (Magnetic shield)
80 mm (3-1/8") Speaker
60 W
30 W
6 ohms
Width: 104 mm (4-1/8")
Height: 110 mm (4-3/8")
Depth: 123 mm (4-7/8")
0.8 kg (1.8 lbs.)/each
Subwoofer System (Magnetic shield)
160 mm (6-1/4") Woofer
60 W
30 W
6 ohms
– 3 –
HT-CN300H
HT-CN300H
Main unit (with subwoofer)
1. Memory Indicator
2. Timer Play Indicator
3. Sleep Indicator
4. Extra Bass Indicator
5. Digital Theatre System Indicator
6. FM Stereo Mode Indicator
7. FM Stereo Receiving Indicator
8. Dolby Pro Logic II Indicator
9. Dolby Virtual Indicator
10. Dolby Digital Indicator
11. RDS Indicator
12. Traffic Programme Indicator
13. Traffic Announcement Indicator
14. Dynamic PTY Indicator
15. Radio Text Indicator
16. Power Indicator
17. On/Stand-by Button
18. Remote Control Sensor Socket
19. TV Monitor Output Sockets
20. DVD Video Input Sockets
21. Video and Audio Input Sockets (VIDEO 2)
22. Video and Audio Input Sockets (VIDEO 1)
23. Subwoofer
24. AC Power Lead
25. DVD Optical Digital Audio Input Socket
26. DVD Coaxial Digital Audio Input Socket
27. AM Loop Aerial Socket
28. FM 75 Ohms Aerial Socket
29. Video and Audio Output Sockets (VIDEO 1)
30. Auxiliary Audio Input Sockets
31. Speaker Terminals
NAMES OF P ARTS
12 345867
18
19
20
21
22
23
11 12 13 14
Back
16
17
9
10
15
Front
25
26
27
28
29
30
31
Remote control
1. On/Stand-by Button
2. Operation Buttons for Other Equipment
3. Remote Control Transmitter
4. Sound Mode Select Buttons
5. Dynamic Sound Select Button
6. Remote Control Sensor for Learn Function
7. Speaker Set Up Button
8. Clear Button
9. Learn Indicators
10. Volume Up and Down Buttons
11. RDS Programme Type/
Traffic Information Search Button
12. DVD Button
13. Video-1 Button
14. RDS ASPM
(Auto Station Programme Memory) Button
15. Tuner/Band Button
16. Video-2/Auxiliary Button
17. Memory 1/2 Buttons for Other Equipment
18. Label Sealing Area
19. Clock Button
20. Memory Button
21. Timer/Sleep Button
22. TV Screen Display/
RDS Display Mode Selector Button
23. Dimmer Button
24. Extra Bass/Demo Mode Button
25. Equaliser Mode Selector Button
26. Cursor Button
27. Enter Button
28. Learn/Transmit Selector Switch
29. 3.6 V DC Input Socket
30. Memory 1/2 Selector Switch
10
11
12
13
14
15
16
17
18
1
24
2456
3
26
27
78 9
30
19
20
21
22
23
24
25
17
18
28
29
– 4 –
HT-CN300H
Remote control sensor
1. Remote Sensor
2. Remote Control Indicator
3. Remote Sensor Connection Plug
HT-CN300H
1
Double-sided tape for remote control sensor:
You can fix the remote control sensor with the supplied tape.
Caution:
Carefully choose where you place the remote control sensor as the adhesive tape
may damage or peel the surface coating when the tape is removed.
Never locate the remote control sensor in an unstable place. Otherwise it may fall.
Note:
Fix the remote control sensor on a flat surface.
2
CP-CN300HF/CP-CN300HC/CP-CN300HR
1. Full-Range Speaker
2. Angle Adjusting Lever
3. Label indication
Front Speaker (right): Red
Front Speaker (left): White
Centre Speaker: Green
Surround Speaker (right): Grey
Surround Speaker (left): Blue
4. Mounting Slot
5. Speaker Terminals
6. Mounting Screw Holes
Speaker cushion:
Attach the cushions to the bottom of the speakers to prevent
them from sliding.
3
Front Side
2
1
3
Bottom
5
4
6
– 5 –
HT-CN300H
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.
2. Take off nylon bands or wire holders where they need to
be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.
3. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
HT-CN300H
STEP REMOVAL PROCEDURE FIGURE
1 Top Cover B 1. Screw ...................... (A1) x2 6-1
2 LCD Cover 1. Hexagon Screw ...... (B1) x2 6-1
3 Top Cover A/ 1. Screw ...................... (C1) x4 6-2
LCD PWB 2. Flat Cable ............... (C2) x3
3. Screw ...................... (C3) x5
4 Back Cover L/R/ 1. Screw ...................... (D1) x6 6-1
Rear Panel 2. Screw.................... (D2) x17 7-1
5 DSP PWB 1. Screw ...................... (E1) x2 7-2
2. Socket ..................... (E2) x1
3. Flat Cable ............... (E3) x4
4. PWB Holder ............ (E4) x2
6 Subwoofer Stand/ 1. Screw .......................(F1) x6 7-2
PWB Unit 2. Socket ......................(F2) x1
7 Video PWB 1. Screw ...................... (G1) x3 7-3
2. Socket ..................... (G2) x2
8 Audio PWB 1. Screw...................... (H1) x2 7-3
9
AMP. PWB
10 Speaker PWB 1. Screw ...................... (K1) x1 7-3
11 Subwoofer 1. Screw .......................(L1) x4 7-2
1. Screw ....................... (J1) x7 7-3
2. Socket ...................... (J2) x4
HT-CN300H
(A1)x2
ø3x8mm
(D1)x6
ø3x8mm
Back Cover R
Rear Panel
(C1)x2
ø4x20mm
Top Cover A
DSP PWB
Top Cover B
Top Cover A
Figure 6-1
(C2)x3
(B1)x2
ø2.5x12mm
LCD Cover
Back Cover L
(C1)x2
ø4x16mm
LCD PWB
(C3)x5
ø3x8mm
– 6 –
Figure 6-2
HT-CN300H
Rear Panel
(D2)x17
ø3x8mm
(E1)x2
ø3x8mm
DSP PWB
(E3)x2
DSP PWB
(E2)x1
Subwoofer Box
Figure 7-1
(E3)x2
Push
1 Push1
DSP PWB
Subwoofer
(G1)x2
ø3x10mm
(G2)x1
Tuner PWB
(J2)x1
Tuner
PWB
Video
PWB
(H1)x2
ø3x10mm
(G1)x1
ø3x8mm
(G2)x1
(J2)x2
Audio
PWB
(J1)x6
ø3x8mm
Speaker
PWB
Speaker
PWB
AMP.
(J2)x1
PWB
(K1)x1
ø3x8mm
AMP.
PWB
(J1)x1
ø3x10mm
Figure 7-3
Pull
2
CP-CN300HF/CP-CN300HC/CP-CN300HR
These speakers CP-CN300HF/CP-CN300HC/CPCN300HR
is available in assembles only and may not be disassembled.
PWB
Unit
(F1)x1
ø4x20mm
(E4)x2
(F2)x1
Subwoofer Stand
(F1)x1
ø4x20mm
Figure 7-2
(L1)x4
ø4x12mm
(F1)x2
ø4x25mm
(F1)x2
ø4x16mm
Remote control sensor
This Remote control sensor is available in assembles only and
may not be disassembled.
– 7 –
HT-CN300H
ADJUSTMENT
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
••
•
AM IF/RF
••
Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency Frequency
Display
AM IF 450 kHz 1,620 kHz T351 *1
AM Band — 522 kHz (fL): T306 *2
Coverage 1.4 ± 0.1 V
AM Tracking 990 kHz 990 kHz (fL): T302 *1
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
• FM IF
Notes:
1: Description of the "FM IF Adjustment" is not carried on this
Manual. It is because the IF coil in the FM front end section
has been best adjusted in the factory so that its further
adjustment is not needed at the field. When replacing the
FM front end assembly, no adjustment is needed either.
2: The parts in the FM front end section are prepared in a
complete unit, so you can't obtain each part individually.
Setting/
Adjusting
Parts
Instrument
Connection
TUNER PWB
CNP301
ANTENNA
AM LOOP
SO301
TERMINAL
FM ANTENNA
T302
AM TRACKING
fL
FE301
8
R381
TP301
T306
AM BAND
COVERAGE fL
FM MUTE LEVEL
VR351
Figure 8-1 TUNER ADJUSTMENT POINTS
AM IF
T351
L354
R357
TP302
OSD SECTION
1: Connect all cables.
2: Power ON
3: Video input (DVD IN or VIDEO 1-IN or VIDEO 2-IN) :PAL
Signal.
4: Adjust Vfc with rotated of TC432. Vfc range : 2.65 V - 2.75V
(Chick with DC voltmeter, connect (+) of DC voltmeter to pin
26 of IC401, connect (-) of DC voltmeter to pin 2 of
CNP431).
VIDEO PWB
CNP431
TC432
26
IC401
Figure 8-2 OSD. ADJUSTMENT POINTS
Vcf
(2.65 V - 2.75 V)
R522
C453
GND
– 8 –
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.
• 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
• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
HT-CN300H
• 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 power section, a tape is being played back.
• Parts marked with “ 1 ” ( ) 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.
REF. NO DESCRIPTION POSITION
SW678 ON/STAND-BY ON—OFF
FRONT
VIEW
E C B
(S) (G) (D)
(1) (2) (3)
KRC105 M
KRC107 M
KTA1266 GR
KTA1271 Y
KTA1274 Y
KTC3198 GR
KTC3199 GR
KTC3203 Y
2SB1565 F
2SB562 C
2SC2878 B
2SC380 O
2SD1898
TYPES OF TRANSISTOR AND LED
FRONT
VIEW
B C E
KTC2026 KRA107 S
B
(3)
TOP
VIEW
E
(1)
KRC107 S
C
(2)
FRONT
VIEW
333ID213
EL204GT
EL204HT
– 9 –
HT-CN300H
SO301
FM ANTENNA
TERMINAL
AM LOOP
ANTENNA
CNP301
AM TRACKING
T302 T306
FE301
FM FRONT END
8
6 7 2 5 4 3
VCC
AM BAND
COVERAGE
VT
+B3
1
CF302
CF301
X352
4.5 MHz
20 1 22 15 16
OSC
IC302
LC72131
PLL(TUNER)
FM
Q360
SWITCHING
10.7 MHz
450 kHz
AM MIX
1232 4 5 9 8 17 13
AM OSC IN
AM RF IN
21 7 18 16 12 14 15
7 9 10 21
CF303
CF303
IC303
LA1832S
FM IF DET ./FM MPX./AM IF
FM/AM
OUT
LOW PASS LOW
STEREO
11
3 4 5 6
CE0
FM/AM
MO/ST
CF303
GND
FM+B
AM IF
MPX IN FM/AM R L
L354
DO
CLK
DATA
17
FM DET
X351
456 k Hz
VCO
MO/ST
+B3
XT21
4.332 MHz
TV
MONITOR
OUT
DVD IN
VTR2 IN
VIDEO
VTR1 IN
VIDEO
VTR1 OUT
VIDEO
ICT1
LC72723
RDS DECORDER
8
X OUT
X IN
9
J420
J430
QT21
2
MPX IN
RST
TEST
RDDA
14
13
VSSD
10
7
VDDA
VDDD
RDCL
RD-ID/
READY
16
15
IC404
TK15406M
VIDEO DRIVER
5
IC405
10
NJM2279D
VIDEO
SWITCH
3
12
14
-B2
3
11
+B4
8
12
1
3
5
IC404
TK15406M
Q416
+B4
8
IC402
NJM2279D
VIDEO
SWITCH
14
-B2
MUTE
+B4
DATA
CLK
X440
17.734475 MHz
5
6
8
9
10
+B3
-B2
-B3
+B4
30
IC401
LC74763
OSD IC
CV OUT
CV IN
OSD CS
16
18
10
VTR2 IN
AUDIO
VTR1 IN
AUDIO
VTR1 OUT
AUDIO
VIDEO/AUX IN
AUDIO
J550
VTR2 IN
VTR1 IN
VTR1 OUT
VIDEO/AUX IN
TUNER L/R
DSP SECTION
Figure 10 BLOCK DIAGRAM (1/4)
– 10 –
SURROUND L/R
CENTER/SUBWOOFER
MAIN L/R
+B5
+B6
+B7
FL690
FL DISPLAY
HT-CN300H
12 3534
114 2413 3225
12
VF1 VF2
Q691
56
OSD CS
17
CLK
18
DATA
8
CEO
9
CE1
20
CE2
19
DO
1 163446 234 5
+B7
100
93
92 79
SYSTEM MICROCOMPUTER
RDS_READY
RDS_RDCL
RDS_RDDA
RDS_RESET
RESET KEY_O
10 11 12
Q682
IC602
8091 7178
IC601
IX0014BG
33 39
X611
4.194304MHz
REMOCON
+B7
20ATT
Q210
Q220
13
8
20ATT
Q240
Q230
10
IC201
LM4766T
POWER
AMP
15
2
+B1
20ATT
Q240
Q230
IC202
13
LM4766T
8
POWER
AMP
15
2
5
L
1
3
4
R
-B1
D101
10
5
4
IC203
13
LM4766T
8
POWER
AMP
L
1
3
R
F101
T6.3A L 250V
15
2
10
5
4
40
25
13
C
1
3
W
T100
MAIN POWER
TRANSFORMER
REMOTE SENSOR
12
SW678
RY250
+B3
RY230
+B3
RY210
+B3
IC10
3
+B7
SUBWOOFER
SPEAKER TERMINAL
Q202
FAN MOTOR
DRIVER
J201
CENTER
SURROUND
FRONT
+B6
M200
M
FAN MOTOR
+B3
-B2
-B3
+B4
+B5
+B6
+B7
+12V
-5V
-12V
+5V
+3V3
FANB
-VP
VF1
VF2
+5V
IC103
BA033T
VOLTAGE
REGULATOR
Q151
Q150
IC501
KA7805AP
VOLTAGE
REGULATOR
F102
T6.3A L 250V
F111
D113
D111
D112
Q112Q113
Q132
D121
D122
D131
T1.25A L 250V
D114
T1.25A L 250V
D123
T500mA L 250V
D124
D522
D523
F112
F121
D524
D525
T501
SUB POWER TRANSFORMER
Figure 11 BLOCK DIAGRAM (2/4)
– 11 –
RY511
F511
T2.5A L 250 V
L511
AC LINE
FILTER
AC POWER
SUPPLY CORD
AC 230 V/50 Hz
HT-CN300H
SDA/CDTI
K
1
Q
Q
Q
Q
IC701
TVHC574T
LATCH
1
OE
VCC
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7
10
GND
IC703
MX27L212
EPROM
A0
19
A1
18
A2
17
A3
16
A4
15
A5
14
A6
13
A7
3
A8
2
A9
31
A10
1
A11
12
A12
4
A13
A14
5
A15
11
A16
10
A17
6
DISPLAY SECTION
O0
O1
O2
O3
O4
O5
O6
O7
CK
20
19
18
17
16
15
14
13
12
11
O0
O1
O2
O3
O4
O5
O6
O7
OE
CE
VCC
VPP
GND
FROM
IC702
TVHC574T
LATCH
1
OE
VCC
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7
10
GND
2120
22
23
25
26
27
28
29
32
30
8
9
24
IC710
IX0489AW
SYSTEM
MICROCOMPUTER
20
19
O0
18
O1
17
O2
16
O3
15
O4
14
O5
13
O6
12
O7
CK
11
IC704
74HC07AF
BUFFER AMP.
FLD_SDATA
FLD_SCK
2341 202223 25262724 78
SPDIF COAX IN
8
D7
9
D6
10
D5
11
D4
14
D3
15
D2
16
D1
17
D0
RD
4
EXTMEM
21
RESET
36 18 19 20
2
1
39 38 37 36 35
65
474548
DSP_UC16
ROM
DSP_UC15
DSP_UC17
FLD_RESET
FLD_CS
RXIN
STD_LED
DD_LED
CON707
CS
SCDOUT
INTREQ
6
3
6
8
45
DSP_RESET
DSP_CS
DSP_SCLK
DSP_SCOUT
AAC_LED
DTS_LED
DPL_LED
VIR_LED
IC709
GP1FA550R
DIGITAL IN
GND
VOUT
IC706
CS493292
DSP
VD1
SCDIN
123
12
+2V5
+B5B
109
VCC
GND
131211
DSP_SCDIN
C_SP_RLY
S_MUTE
POWER
S_SP_RLY
W_SP_RLY
13
72
8.38 MHz
+5V
1
VCC
2
3
IC721
TC7WU04U
DUAL2-INPUT
NAND GATE
1
GND
3
XMT958
AUDAT0
AUDAT1
AUDAT2
SCLKN1
LRCLKN1
SDATAN2
SCLKN22
SDATAN1
SDATAN1
DGND1
DGND2
VD3
VD2
13
TC7WU04U
DUAL2-INPUT
NAND GATE
+3V3
SCL
SDA
15
+B5
29
30
82F_SP_RLY
81
80
79
14
7
X901
VCC
167
MCLK
SCLK
LRCLK
DGND3
352
24
IC707
+B4A
3Y1A
+3V3
AGND
2
+B5A
44
43
42
41
40
39
25
26
27
28
22
30
IC722
74HC153
DIGITAL
SWITCHING
1I1
6
5
14
12.288 MHz
1I0
S0
3
1A
1
6
X701
3Y
1Y
GND
7
VCC
GND
7
1Y
VCC
16
+3V3
7
8
9
10
11
12
11
2
3A
7
+B5A
MCKO
LRCK
BICK
STDO
SDTI1
SDTI2
SDTI3
XTI/EXTCL
8
4
+B7A
+3V3
+B3A
+11V
+B5A
+3V3
SWITCHING
+B4A
+5V
SWITCHING
37
RX4
+B5
+3V3
Figure 12 BLOCK DIAGRAM (3/4)
– 12 –
FROM AUDIO SECTION
HT-CN300H
KO
CK
CK
DO
TI1
TI2
TI3
I/EXTCLK
+B5
+3V3
7A
V3
B3A
1V
V3
ITCHING
41
37
RX2
RX4
AK4586VQ
ADC/DAC/DIR
CONVERTER
SDA/CDTI
SCL/CCLK
+B7
+5V
Q703
+B3
+9V
Q704
+B5B5A
Q701
+3V3
IC708
DVDD1
TVDD2
35 22 34
PVDD
+B4 +5V
ADD
23
VREFH
4213617 18
ROUT1
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
DVSS1
PVSS
RIN
LIN
AVSS
NJM4580M
OPE AMP.
33
32
31
30
29
28
27
26
IC718
IC716
NJM4580M
OPE AMP.
-B3
+B3A
+8V
8
-9V
+B3A
4
4
-9V
-B3
+B3A
+8V
8
4
-9V
-B3
+8V
8
4
-9V
-B3
3
5
+8V
ANALOG IN Lch
+B3A
ANALOG IN Rch
8
1
7
IC715
NJM4580M
OPE AMP.
SURROUND Lch
1
SURROUND Rch
7
NJM4580M
OPE AMP.
1
7
FRONT Lch
FRONT Rch
IC711
CENTER
WOOFER
1
7
3
5
3
5
3
5
VCR1 OUT
7
18
12
13
3
12
13
3
12
13
3
VCR1 IN
VCR2 IN
LC75341M
AUDIO
PROCESSOR
23
+8V
B3A
LC75341M
AUDIO
PROCESSOR
23
+8V
B3A
LC75341M
AUDIO
PROCESSOR
23
B3A
+8V
VIDEO/AUX IN
15 161011141213 9
IC720
IC713
IC712
TUNER
CLK
24
CLK
24
CLK
24
CE
2
2
CE
21
4
DI
CE
1
21
4
DI
1
TO POWER AMP
SECTION
21
4
DI
2
1
Q721
+B4
B4A
5V +5V
ITCHING
+B5B
+2V5
IC705
PQ025EZ
VOLTAGE
REGULATOR
+B5
+3V3
Figure 13 BLOCK DIAGRAM (4/4)
– 13 –
HT-CN300H
T
AMP. PWB-B3 (1/2)
FM SIGNAL
A
PROTECT
FAN_CONT
POW_LEVEL
22K THERMO
C195
390P
C263
0.001
B
R140
10K
R141
10K
C
R271
2.2K
R270
820
R259
R258
820
2.2K
C254
0.001
R272
100
B
B
R260
C
E
C
E
100
Q260
2SC2878 B
Q250
2SC2878 B
C264
(N.P.)
C255
1/50
(N.P.)
1/50
R261
22K
R273
22K
C256
22/35
(N.P.)
C265
22/35
(N.P.)
IC203
LM4766T
POWER AMP.
R274 1K
R275 270
R276 22K
R262 1K
R263 220
R264 22K
C193
330P
C192
330P
13
12
C299
0.22
5
2
GNDA
VCCA
+INA
8
-INA
GNDA
7
MuteA
VEE
VccB
+INB
GNDB
-INB
MuteB
VEE
MUTEB6MUTEA
11
10
GNDB
15
VCCB
C228
0.22
4
VEE
OUTA
3
1
OUTB
NC2
NC1
9
14
R282 10K
C196
820P
TERMINAL PWB-B5
C295
D
E
R142
10K
R143
10K
R247
2.2K
C232
0.001
R235
2.2K
C241
0.001
R246
820
R234
820
R248
100
C
B
E
C
B
E
Q240
2SC2878 B
C242
1/50
(N.P.)
Q230
2SC2878 B
R236
100
C233
1/50
(N.P.)
CNP203
R249
0.22
R237 22K
0.22
C236
4.7
22K
C243
22/35
(N.P.)
R238 1K
R239 220
C234
22/35
(N.P.)
R250
1K
R251 220
R252 22K
R240
22K
C188
330P
C186
330P
2
VCCA
8
+INA
-INA
7
GNDA
MuteA
VEE
VccB
+INB
13
12
-INB
GNDB
MuteB
VEE
MUTEB
11
CNS204
BI204
1
2
3
4
COR1
5
6
7
8
C206
C245
0.22
0.22
R253
C207
4.7
R241
1
2
3
4
5
6
7
8
0.22
5
10
GNDA
GNDB
MUTEA
6
R291 10K
C296
0.22
IC202
LM4766
POWER
AMP.
4
15
VEE
VCCB
OUTA
OUTB
NC1
NC2
9
14
3
1
C170
100/10
F
FW12
FL_PRIOUT
A_GND
FR_PRIOUT
SR_PRIOUT
A_GND
SL_PRIOUT
CT_PRIOUT
G
CNP711
DSP PWB
P23 12 - F
A_GND
SW_PRIOUT
A_GND
F_RLY
S_RLY
C_RLY
TO
W_RLY
-20DBATT
FAN_CONT
THERMO
PROTECT
POW_LEVEL
CNP122
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
19
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
1
23456
Figure 14 SCHEMATIC DIAGRAM (1/17)
R144
10K
R211
2.2K
R145
10K
D272 DS1SS133
D251 DS1SS133
D252 DS1SS133
– 14 –
C219
0.001
R223
2.2K
R222
820
C210
0.001
R210
820
C
B
E
C
B
E
Q220
2SC2878 B
R224
100
Q210
2SC2878 B
R212
100
C220
1/50
(N.P.)
C211
1/50
R213
22K
R225
C198
0.0047
22K
C212
22/35
(N.P.)
Q271
KTC3199 GR
C221
22/35
(N.P.)
C
E
B
R226 1K
R227 220
R228 22K
R214 1K
R215 220
R216 22K
Q270
KTC3199 GR
EBC
IC201
LM4766T
POWER AMP.
C190
330P
8
+INA
7
-INA
+INB
13
12
-INB
C189
330P
C272
47/50
C291
0.22
2
VCCA
MuteA
VEE
VccB
MuteB
VEE
5
GNDA10GNDB
GNDA
GNDB
MUTEB
MUTEA
6
11
R290 10K
15
VCCB
C292
0.22
4
VEE
OUTA
OUTB
NC19NC2
14
R168
56K
3
1
HT-CN300H
8
2
C296
0.22
IC202
M4766T
POWER
AMP.
OUTA
3
D201
DS1SS133
Q200
KRC107 M
2
1
3
C204
100/10
D299
DS1SS133
R200
820K
Z201
DZ3.9BSB
R209 22K
D200
DS1SS133
E
C
KTA1271 Y
B
Z200
DZ5.1BSB
Q204
R201 1K
R278
10K
R202
220K
R203 2.7K
C200
47/10
R171
10K
R170
8.2K
R187
15
DS1SS133
C269
0.12
C268
0.12
R280
15
B
D170
C
E
Q201
KTC3203 Y
R204
470K
KRC107 M
L270
0.7µH
Q170
B
C271
0.01
R281
4.7
E
C201
47/16
C
C
B
KTC3199 GR
E
D171
DS1SS133
Z202
DZ6.2BSB
R205
150(1W)
R172
3.9K
Q202
FAN MOTOR
DRIVER
C187
0.0047
D172
DS1SS133
1
2
C203
47/50
3
Q203
2SB1565 F
CON201
CNP205
M200
FAN MOTOR
1
2
M
CNS205
1
FANB
2
FANGND
4
+B1
5
-B1
6
PGND
7
M_12VA
8
PGND_A
SUBWOOFER
CNS201
2
1
TO
AMP. PWB (2/2)
P24 1 - A
OUTB
0.22
0.22
0.22
0.22
R180 10
C208
C209
0.22
C223
C214
R229 10
R181 10
R297
1K
Q255
KRC105 M
R295
1K
Q235
KRC105 M
R168
56K
R293
1K
Q215
KRC105 M
0.22
0.22
R218 10
E
B
C
E
B
C
E
B
C
RY250
D250
DS1SS133
RY230
D230
DS1SS133
RY210
D210
DS1SS133
CON210
0.12
0.12
0.12
0.12
C216
C225
C260
0.12
0.12
C215
C224
C259
R220 15
R232 15
R183 15
R184 15
R268 15
CON211
R182 15
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
R242 10K
R266 10K
R254 10K
R231 10K
R219 10K
C247
0.12
0.12
C246
R256 15
R185 15
L250 0.7µH
L260 0.7µH
L220 0.7µH
0.12
C238
0.12
C237
R224 15
R186 15
L240 0.7µH
C218
0.022
C217
0.022
R221 15
R194 15
R195 15
C227
C262
0.022
C226
C261
0.022
R233 15
R269 15
R298 15
C249
0.022
0.022
C248
0.022
0.022
R257 15
R197 15
C240
0.022
C239
0.022
R245 15
R196 15
FR_GND
FR
SR_GND
SR
CT_GND
CT
FL_GND
FL
SL_GND
SL
J201
SPEAKER TERMINAL
L210 0.7µH
C176 0.0047
C175 0.0047
C178 0.0047
C179 0.0047
C180 0.0047
C202
C267
0.22
C205
C258
1
NC2
9
10K
R265 10
R277 10
R176 10
R175 10
R162
56K
R163
56K
R165
56K
R164
56K
R166
56K
R167
56K
SPEAKER PWB-B6
7
8 9 10 11 12
Figure 15 SCHEMATIC DIAGRAM (2/17)
– 15 –
HT-CN300H
SMUTE(NO USE)
P3
C
0
Y
C
A
B
US5V_1
C625
0.022
S5V_1
C624
0.022
C623
47/50
R623
12K
Z621
DZ6.2BSB
R693
33
C693
100/10
R621
R622
P1023P1124P1225P1326P1427P1528P1629P1730P1831P1932P2034F235F1
17P518P619P720P821P922
47
47
C692
1/50
81
83P984P885P786P687P588
P1182P10
P4
C627
0.022
C
FW7
AC_RLY
D_GND
FUNC_DVD
VREC_MUTE
CLK
V_SW1
DATA
V_SW2
V_MUTE
D
OSD_CS1
CON703
DSP PWB
P20 1 - G
TO
CNP670
1
1
2
3
4
5
6
7
8
9
10
10
C698
0.022
R685
10K
R686
10K
R665 1K
FUNC_TUNER
R662 1K
R661 1K
R660 1K
R659 1K
R658 1K
R657 1K
R656 1K
R655 1K
E
C699
0.022
80
P12
79
VLOAD
78
P13
77
P14
76
P15
75
P16
74
P17
73
P18
72
P19
71
P20
70
F_SP_RLY
69
C_SP_RLY
68
S_SP_RLY
67
W_SP_RLY
66
AC_RLY
65
LMUTE
64
NO_USE3
63
FUNC_TUNER
62
FUNC_DVD
61
V_REC_MUTE
60
V_SW1
59
V_SW2
58
NTSC/PAL
57
OSD_CS2
56
OSD_CS1
55
OSD_RST
54
AAC/MPEG_LED
53
DPL_LED
52
VIR_LED
51
DTS_LED
V_MUTE
DD_LED
STD_LED
49
50
MICRO
VDD347DSP_SMUTE_IN
DSP_POWER_IN
46
48
IX
S
STAND_BY_LED
DSP_RST
44
45
I
POWER_ON_LED
43
EL204GT
F
CNP701
TO
DSP PWB
P20 1 - E
FW6
DD_LED
DSP_POWER_IN
STD_LED
DSP_SMUTE_IN
DTS_LED
G
REM_ACK_LED
VIR_LED
REMCON
DPL_LED
DSP_RST
AAC/MPEG_LED
DSP_RX_IN
DSP_STAND_BY
FLD_SDATA
L_MUTE
NC
VF2
FLD_SCK
-VP
FLD_CS
VF1
CCB_CE1
SW_5V
CCB_CE0
UN_SW_5V
CLK
D_GND
DATA
CCB_CE2
H
CNP640
1
1
2
3
4
5
6
7
8
9
10
11
N.C.
12
13
14
15
16
N.C.
17
18
19
20
21
22
23
24
25
26
27
28
29
29
RED
R699 1.5K
R698 300
LED699
LE204HT
GREEN
LED698
• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
1
23456
Figure 16 SCHEMATIC DIAGRAM (3/17)
– 16 –
C660
0.022
111213141516171819
GND
10
20
VCC
IC604
123456789
VHC541AF
BUFFER AMP.
HT-CN300H
29
P18
P1023P1124P1225P1326P1427P1528P16
P17
22
83
P984P885P786P687P588P489P390P291P192G993G894G795G696G597G498G399G2
G610G711G812G913P114P215P316P417P518P619P720P821P9
IC601
IX0014BG
SYSTEM
MICROCOMPUTER
FL690 DISPLAY
1F42F34G15G26G37G48G59
RDS_RDCL/KARA_LAC
RDS_RDDA
POWER_LEVEL
100
G1
RDS_READY
RDS_RESET
FAN_CONT
CCB_CE0
CCB_CE1
CCB_CE2
NO_USE1
FLD_SDATA
PROTECT
KRC107 M
R692
100K
VDD1
/MIC_IN
-20_ATT
RESET
VPP/IC
SPN
VDD2
DATA
CCB_DO
FLD_CS
FLD_SCK
AVSS
THERMO
TUN_SM
DIST_1
R690
3.3
C690
R691
B
C600
R602 1K
R603 1K
R604 1K
R605 1K
R606 1K
R607 1K
R608 1K
R609 1K
R615 1K
R617 1K
R618 1K
R619 1K
R620 1K
R626 1K
R627 1K
R628 1K
R629 1K
R630 1K
1K
0.022
1/50
C601
1000/6.3
R610 1K
C611
12P(CH)
X611
4.19304 MHz
R694
330K
C612
18P(CH)
R614 10K
R672 10K
R675 10K
C671
220/6.3
CNP601
N.C.
FW8
20
19
18
17
16
15
14
13
12
11
10
20
RDS_RDDA
RDS_RDCL
RDS_RST
RDS_READY
SPN
TUN_SM
-20DBATT
F_RLY
FAN_CONT
C_RLY
9
8
7
6
5
4
3
2
1
CCB_CE0
S_RLY
CLK
W_RLY
DATA
THERMO
CCB_DO
PROTECT
D_GND
POWER_LEVEL
1
CNP708
DSP PWB
P21 12 - F
TO
Q691
C
E
1
2
3
4
5
6
7
8
9
10
11
X2
12
X1
13
14
XT2
15
16
17
CLK
18
19
20
21
22
23
24
25
26
27
28
29
30
VDD347DSP_SMUTE_IN
DSP_POWER_IN
46
48
IC604
DSP_RST
45
44
40
42
43
VSS41REM_ACK_LED
SMUTE(NO_USE)
POWER_ON_LED
STAND_BY_LED
R635 1K
R667 3.3K
VHC541AF
BUFFER AMP.
DSP_RX-IN_OUT
DSP_STAND_BY
REMCON
37
38
39
R638 1.5K
R637 1.5K
R666 3.3K
2
1
SYS_STOP
36
SW678
KEY_133KEY_034AVDD35AVREF
32
R633 1KR678 10K
ON/STAND-BY
R677 10K
R676 10K
DIST_0
31
R679 68K
R636 10K
IC603
74VHC541AF
C622
4.7/50
111213141516171819
C620
0.022
GND
BUFFER AMP.
10
D681
DS1SS133
D684
D683
DS1SS133
R683
47K
Q682
KRC107 M
C
E
1N4004S
B
D682
DS1SS133
R682
100K
C682
3.3/50
C681
REGULATOR
0.022
BACK-UP
20
VCC
123456789
UN_SW_5V
SW_5V
D685
DS1SS133
C686
0.1/50
C685
0.022
D680
DS1SS133
R680
4.7K
IC602
KA7042AP
VOLTAGE
1
3
2
C680
10/50
DISPLAY PWB-B1
7
8 9 10 11 12
Figure 17 SCHEMATIC DIAGRAM (4/17)
– 17 –
HT-CN300H
27
A
41
0
1
A
DSP PWB-A1 (1/3)
[1,2,3]
SW5V
[2,3]
UNSW5V
[2]
DG_CNG
[2]
FUNCDVD
B
[2,3]
[1,2,3]
3.3V
DGND
C
D
E
+B +B
1
2
3
4
C738
0.022
DSP_A15
DSP_A14
DSP_A13
DSP_A12
DSP_A11
DSP_A10
DSP_A09
DSP_A08
+B
11
CLK
12
Q7
13
Q6
14
Q5
15
Q4
16
Q3
17
Q2
18
Q1
19
Q0
20
VCC
IC701
TVHC574T
LATCH
GND
+B
IC702
TVHC574T
C736
0.022
10
9
DSP_A07
D7
8
DSP_A06
D6
7
DSP_A05
D5
6
DSP_A04
D4
5
DSP_A03
D3
4
DSP_A02
D2
3
DSP_A01
D1
2
DSP_A00
D0
1
OE
R745
10K
DSP_A07
DSP_A06
DSP_A05
DSP_A04
DSP_A03
DSP_A02
DSP_A01
DSP_A00
DSP_A10
DSP_A11
DSP_A09
DSP_A08
DSP_A13
DSP_A14
DSP_A12
DSP_A07
DSP_A06
DSP_A05
LATCH
11
CLK
12
Q7
13
Q6
14
Q5
15
Q4
16
Q3
17
Q2
18
Q1
19
Q0
20
VCC
C739
0.022
1
A11
2
A9
3
A8
4
A13
5
A14
6
A17
7
PGMB
8
VCC
9
VPP
10
A16
11
A15
12
A12
13
A7
14
A6
15
A5
16
A4
IC703
MX27L212
EPROM
EXTMEMB
IC703
C735
10/16
10
GND
9
DSP_D07
D7
8
DSP_D06
D6
7
DSP_D05
D5
6
DSP_D04
D4
5
DSP_D03
D3
4
DSP_D02
D2
3
DSP_D01
D1
2
DSP_D00
D0
1
OE
C740
10/16
32
31
A10
30
CEB
29
DSP_D07
O7
28
DSP_D06
O6
27
DSP_D05
O5
26
DSP_D04
O4
25
DSP_D03
O3
24
GND
23
DSP_D02
O2
22
DSP_D01
O1
21
DSP_D00
O0
DSP_A00
20
A0
DSP_A01
19
A1
18
DSP_A02
A2
MX27L2000TC
17
DSP_A03DSP_A04
A3
DSP_A[00:15]
+B+B
DSP_D07
R705 10K
DSP_D06
R706 10K
DSP_D05
R707 10K
DSP_D04
R708 10K
DSP_D03
R709 10K
DSP_D02
R710 10K
DSP_D01
R711 10K
DSP_D00
R712 10K
[1]DSP_D[00:07]
+B
C706
22/16
C707
0.1
DSP_D[00:07]
[1]
R704
4.7K
+B
+B
C782
C781
0.1
47/16
PQ025EZ
VOLTAGE
4.7K
R703
DSP_D07
DSP_D06
DSP_D05
DSP_D04
DSP_D03
DSP_D02
DSP_D01
DSP_D00
REGULATOR
3.3K
R702
7
SCCLK
8
D7
9
D6
10
D5
11
D4
12
VD2
13
DGND2
14
D3
15
D2
16
D1
17
D0
+B
DSP_D[00:07]
[1]
+3.3V
5
6
1
VIN
2
VC
VO1
NC
GND
VO2
6
3
4
5
IC705
R758
C731
0.1
3.3K
10K
R701
R735
1
2
3
6
VD1
XMT4WRB5RDB
DGND1
IC706
CS493292
DSP
CSB19SCDOUT20INTB21EXTMEMB22SDATAN123VD324DGND325SCLKN126LRCKNN1
18
330
R757 330
R726 330
R727 100
42
43
44
SCLK
MCLK
LRCLK
[2]
DSP_INTREQ
[2]
[2]
[2]
[2]
[2]
[2]
F
[2]
[2]
DSP_SCDOUT
[2]
[2]
[2]
[2]
DSP_ABOUT
ROM
DSP_UC17
DSP_UC16
DSP_UC15
DSP_RESET
DSP_CS
DSP_SCCLK
DSP_SCDIN
SDA
SCL
7
8
9
10
11
12
13
14
15
16
17
18
19
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
1
23456
Figure 18 SCHEMATIC DIAGRAM (5/17)
IC704
– 18 –
14
1234567
74HC07AF
BUFFER AMP.
+B
C729
10/16
8
910111213
C725
0.022
+B
GND
R713
4.7K
R714
3.3K
R715
3.3K
R716
10K
C7
0.
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