Samsung Electronics
4-3
Troubleshooting
CHANGE 2401-004704
FL
FR
(OPEN)
(OPEN)
-27V
-21V
-18V
25V
-25V
5V
5V
5.6V
(OPEN)
OPEN
-5V
-13V
R27
SPK-R
SPK-L
+VFD
ST-5.6
P-ON
DGND
D5V
A5V
AGND
-A5V
GVDD-12V
-PVDD-25V
SGND
+PVDD25V
-VFD
-VP
9
8
7
6
5
4
3
2
19
18
17
16
15
14
13
12
11
10
1
PCON1
IRC2
IRR21
IRR20
IRR19
IRR9
IRR10
IRR2
IRR7
IRD1
IRR17
IRR8
IRC8
IRR16
IRC15
IRC18
IRC1
IRR1
IRR6
IRR5
IRC5
IRR4
IRC6
IRC10
IRR12
IRC7
IRC13
IRC16
IRC12
IRR15
IRC14
IRC17
IRR3
IRC3
IRC4
IRC9
IRR11
IRC19
IRR26
IRC21
IRR27
IRD20
IRC23
IRD7
IRD21
IRR52
IRR37
IRC26
IRR38
IRR39
IRD6
IRR49
IRD3
IRD22
IRR46
IRR54
7
6
5
4
3
2
1
IRF4
IRR64
IRC36
IRC37
IRC38
IRR66
IRR65
IRR53
IRR51
IRR50
7
6
5
4
3
2
1
IRF3
IRR48
7
6
5
4
3
2
1
IRF2
IRR63
IRC34
IRC35
IRR60
IRC31
IRC32
IRR62
IRC33
IRR61
IRC43
IRC44
IRC41
IRR70
IRC42
IRR72
IRR74
IRR73
IRL2
IRR71
IRC39
IRR67
IRC40
IRR69
IRC45
IRC46
2
1
SPK2
IRR14
R1
IRR13
IRR23
IRR22
IRR25
IRC20
IRR28
IRR33
IRR31
IRR29
IRC22
IRR30
IRR32
IRC24
IRC25
IRR36
IRR35
IRR43
IRD5
IRD2
IRR47
IRR45
IRR44
7
6
5
4
3
2
1
IRF1
IRR40
IRQ1
IRR42
IRR59
IRC29
IRC30
IRR56
IRQ3
IRR57
IRQ2
IRR58
IRD4
IRR41
IRC27
IRL1
IRR68
IRC28
IRR55
2
1
SPK1
IRR24
IRR34
MGND1
9
8
7
6
5
48
47
46
45
44
43
42
41
40
4
39
38
37
36 35 34 33 32 31 30
3
29 28 27 26 25
24
23
22
21
20
2
19
18
17
16
15
14
13
12
11
10
1
IRIC1
IRC11
-PVDD-25V
+PVDD25V
+PVDD25V
-PVDD-25V
GVDD-12V
GVDD-12V
GVDD-12V
+PVDD25V
-PVDD-25V
-PVDD-25V
GVDD-12V
+PVDD25V
+VFD_-18V
-VFD_-21V
820OHM
10OHM
10OHM
8.2KOHM
AGND
220OHM
75V
6.8KOHM
50V
POWER_ON
100NF
50V
50V
22KOHM
AGND
10UF
50V
10NF
1.5KOHM
5.6KOHM
4.7KOHM
ST_5.6V
19-217/R6C-AL1M2VY/3T
-VP_-27V
100NF
50V
470UF
1.5OHM
100NF
50V
50V
S_GND
47KOHM
390OHM
1/10W
1/10W
IRF6645
1OHM
27KOHM
1OHM
50V
100NF
100NF
50V
100KOHM
150V
PRF21BB471QB5RA
1KOHM
330OHM
12KOHM
10OHM
1/10W
27KOHM
100V
100NF
10OHM
2.2NF
50V
2.2NF
50V
2.2KOHM
10OHM
470NF 100V
DCP
47NF 25V
1/10W 10KOHM
MMBT2222A
CSD_DISCHARGE
22OHM
-A5V
100NF
1/10W
150V
BAV20WS-V
6.8KOHM
820OHM
10KOHM
25V
10UF
10UF 25V
10KOHM
1NF
1.5OHM
47KOHM
100NF
47KOHM
D3.3V
A5V
4.7OHM
A5V
D5V
1OHM
10UF
100OHM
AUDIO_R
AGND
1NF
50V
AGND
AGND
UNDEFINED
10OHM
1/10W1KOHM
IRF6645
400V
19-217/R6C-AL1M2VY/3T
390OHM
10UF
1UF
4.7OHM
2.2KOHM
2.2KOHM
CSD_DISCHARGE
S_GND
UNDEFINED
DCP
47UF 6.3V
6.3V
1NF
16V
1/10W
DGND
68KOHM
12KOHM
1N4148WS
1/10W
470NF 100V
100NF
200V
ES1D-13-F
-A5V
100V
2.2KOHM
1/10W
S_GND
16V
10UF
82KOHM
10OHM
S1G
-A5V
50V
1NF
50V
1UF
1NF
10KOHM
10OHM
50V
S_GND
1/10W
68KOHM
S_GND
MMBT2222A
10KOHM
1/10W
2SA1037AK
1/10W 100OHM
D3.3V
47UF
ES1D-13-F
200V
2.2NF
50V
-A5V
50V
100V
50V
S_GND
0OHM
0OHM
100NF
100NF
47KOHM
1NF
10KOHM
S_GND
1OHM
47KOHM
100NF
AGND
IR_RESET_POWER
6.3V
47UF
8.2KOHM
1/10W
25V
82KOHM
6.8KOHM
-A5V
19-217/R6C-AL1M2VY/3T
10OHM
IRF6645
S_GND
S_GND
0OHM
1/10W
75V
1N4148WS
6.8KOHM
1/10W
0OHM
50V
10OHM
0OHM
IR_SD_POWER
100NF
50V
10KOHM
10UF
AUDIO_L
100NF 100V
25V
10OHM
S_GND
S_GND
BAV20WS-V
DCP
50V470UF
50V
100NF
50V
IRF6645
5267-02A
5267-02A
25V
50V2.2NF
10KOHM
50V
10OHM
50V
100NF
1KOHM
100NF
50V
22KOHM
100NF
S_GND
-A5V
E
B
C
E
B
C
CLIP2
NC
COMP1
DCP
FAULT
CLIP1
CLIP3
VS1
NC
VS2
HO2
VB2
CSH2
VCC2
LO2
LO1
NC
CSH1
VB1
HO1
HO3
VB3
CSH3
NC
LO3
COM2
VCC
COM
OTP3
OTP2
OTP1
NC
VS3
GND
VSS
GND
CSD
COMP2
IN1
VAA
IN2
IN3
DS
COMP3
NC
OCSET
VREF
DT
E
B
C
IR AMP, page 7-8
W_CON1
DSIC5
IPIC1
K_CON1
UIC1
AIC1
PCON1
DSIC1
ADIC1
U1
SPK-R
SPK-L
MAIN PCB Top, page 6-6
<Fig. 4-2>
2
2
2
Содержание HW-C450
Страница 15: ...Samsung Electronics 3 3 Disassembly Reassembly No Description Description Photo 4 1 Separate Speaker L R ...
Страница 16: ...3 4 Samsung Electronics MEMO ...
Страница 35: ...Samsung Electronics 4 19 MEMO ...
Страница 50: ...6 2 Samsung Electronics PCB Diagram 6 2 VFD PCB Top CN1 ...
Страница 51: ...Samsung Electronics 6 3 PCB Diagram 6 3 VFD PCB Bottom ...
Страница 52: ...6 4 Samsung Electronics PCB Diagram 6 4 KEY PCB Top ...
Страница 53: ...Samsung Electronics 6 5 PCB Diagram 6 5 KEY PCB Bottom IC1 ...
Страница 56: ...6 8 Samsung Electronics PCB Diagram TP1 TP2 6 6 2 Test Point Wave Form TP4 TP6 TP7 TP8 TP9 TP10 ...
Страница 57: ...Samsung Electronics 6 9 PCB Diagram 6 7 MAIN PCB Bottom TP3 TP5 DIIC1 DSIC3 PWIC1 IC1 ...
Страница 58: ...6 10 Samsung Electronics PCB Diagram 6 7 1 Test Point Wave Form TP3 TP5 ...
Страница 59: ...Samsung Electronics 6 11 PCB Diagram 6 8 SMPS PCB Top 1 CN2 CN1 ...
Страница 61: ...Samsung Electronics 6 13 PCB Diagram 6 9 SMPS PCB Bottom ...
Страница 62: ...6 14 Samsung Electronics MEMO ...
Страница 72: ...7 10 Samsung Electronics MEMO ...