BBK AV-214T User manual

AV-214T
SERVICE MANUAL

1
2
3
7
8
10
11
12
Technical parameter
Disassembly instruction
Flow chart
Principle chart
PCB board
General chart
BOM
INDEX
12
BOM
Type Code Description Usage
06036 Diode blue light LED 2
090092 Impulse switch 1
Other volume panel material
05144 1
05169 1
05290 1
06004
Diode red light LED 1
08025 Crystal ceramic 1
090109 Touch switch 8
12015 Optical receiver 1
12251 Display screen 1
0202093 Potentiometer rotary 2
Other control panel material
0300185
Electtolytic capacitor25V 4700uF ± 20% Dia16x30
NOVA 2
05034 3
05040 2
05177 1
05191 1
05263 1
05264 1
08025 Crystal ceramic 1
10041 Relay 2
13072 Fuse 2
13076 Fuse 2
Other amplifier material
090175 AC power switch rocket type 1
11410 Transformer 1
12033 Receiver 1
B11055 Remote control 1
Other material
Other
accessories
Amplifier
B60264
Control panel
B60262
Volume
panelB60258

2
TECHNICAL PARAMETER
power output :20W 3+6W 2(RAMS)
Impedance of subwoofer : 4 OHM
Impedance of satellite speaker : 4 OHM
Frequency Response
Subwoofer 20Hz-120Hz
Satellite speaker 20Hz-20KHz
Seperation 50dB
System S/N ratio 70dB
Input voltage : AC230V 50Hz
11
GENERAL CHART

Study the cords layout carefully before any takedown. Set them as original after servicing.
DISASSEMBLY INSTRUCTION
Fig 1
D
A
10
PCB BOARD
Disassembly the amplifier
-Take down four screw A (fig1)
-Take down three screw B (fig2)
-Take down eight screw C (fig3)
-Take down SIP cable terminal D (fig1)
-Move away the amplifier PCB

Fig 2
B
Fig 3
C
9
PRINCIPLE CHART
4R09
22K
4R11
10K
4R13
22K
4C05223 4C03223
4C09
332
W1
50KB
W2
50KB
4R06
12K
4U01A
4558
4R08
12K
4C02
22P
4R10
22K
R167
10K
4R14
22K
4C06223 4C04223
C110
332
W1
50KB
W2
50KB
4R05
12K
U111B
4558
4R0712K
4C01
22P
4C08
301
4C07
301
1R20
10K
1R21
1K
0E54
22uF/16V
1R18
1K
1R19
47K
0C62
101
0Q10
TDA2030
1R12
4R7/1W
0C82
CL104
SL I
1R16
10K
1R17
1K
0E53
22uF/16V
1R14
1K
1R15
47K
0C61
101
0Q11
TDA2030
1R13
4R7/1W
0C83
CL104
SR IN
1R30
10K
1R31
1K
0E56
22uF/16V
1R28
1K
1R28
47K
0C69
101
0Q09
LM1875
1R27
4R7/1W
0C67
CL104
CE IN
1R35
10K
1R36
1K
0E57
22uF/16V
1R33
1K
1R34
47K
0C27
101
0Q07
LM1875
1R32
4R7/1W
0C70
CL104
1R24
10K
1R25
1K
0E55
22uF/16V
1R22
1K
1R23
47K
0C66
101
0Q08
LM1875
1R26
4R7/1W
0C65
CL104
0E46
3300uF/25V
0E47
3300uF/25V
0E49
100uF/16V
0E50
100uF/16V
3E02
220U/35V
3E03
100U
0E51
2200U/16V
0E52
2200U/16V
+5V
+23V
-23V
3C02
103
G
In O
0Q13
7812
G
In O
0Q12
7912
1F01
T3.15
1F02
T3.15
IN5401*4
+12V
-12V
1F03
T1.6
1F04
T1.6
3R33
1R/0.25W
3D02
4004
3C03
103
3D01
4004
3R01
150R/2W
G
In O
3Q01
7805
3R02
22R
3R34
2R/0.25W
3R03
220R
3R04
220R
3R05
10K
3Z01
5V1
-30V
AC5V
AC5V
FL I
FR I
C801
22uF/16V
C801
22uF/16V
0E59
100uF/25V
0E58
100uF/25V
SW I
FL OUT
1JK1
ÈýÁª¼ÌµçÆ÷
1JK2
ÈýÁª¼ÌµçÆ÷
FR OUT
SW OUT
SL OUT
SR OUT
CE OUT
0D09
4004
1Q09
8050
1Q10
8050
1Z01
5V1
1
8
7
3
2
4
55MIC1
CK3-6.35-104A
1
2
3
4
5
0CON7
5PINS
1
2
3
4
5
5CN1
5PINS
+23V
1R08
100K
1R09
56K
0E21
47U
8SW1
10A 125/250VAC8C01
400V/103
8C02
400V/103
8FU1
T1.6
1
2
8CON1
2PIN
1
2
8CON2
2PIN
1
2
1
2
3
4
5
6
7
4CN1
7PIN
+12V
-12V
4E02
47u
4E01
47U
-12V
+12V
0D17
4004
0D16
4004
0E48
47U
0C84
104
0D01 0D03
0D04
0D02
1R11
100R/1W
1R12
100R/1W
0R35
1K
1U07A
4558
0R52
15K
0C12
221
0R331K
1U07B
4558
0R51
15K
0C11
221
0E44
10U
0E45
10U
+12V
-12V
0R39
47K
0R43
47K
0R32
4K7
0R82
4K7
1
2
3
4
5
6
7
0CON5
7PIN
+12V
-12V
FL Y
FR Y
0C64CL104
0C68
CL104
0C71
CL104
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15 16 17 18 19 20 21 22 23 24 25 26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 41 42 43 44 45 46 47 48 49 50 51 52
3U01
PT6311
1 2 3 4 5 6 7 8 9
10
11
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
3U02
28125-VFD
6SW1
STANDBY
3SW04
AUX 3SW05
BOLBYPRO
3SW08
BYPASS
3SW03
TUNER
3SW02
VCR
3SW01
DVD/5.1
3SW06CEN MODE
3SW07
DSP
3R12
22K
3R11
22K
3R10
22K
3R09
22K
3D034148
3D044148
3D05
4148
3R15
56K
3R1615K
3R22
560R
3R1715K
3R32 560R
3R13
10K 3R07 220R
3R14
10K 3R08
220R
3Q02
8550
3Q03
8550
3R27
10K
LED1
ºìÉ«
R316
3K3
3E04
4U7
R301
2R/0.25W
3C06
104 +5v
G
O
3REM1
TL1838
PT6311
7LED1
LED
7LED2
LED
R3163K3
VOL
VOL
GND
7K01
±àÂ뿪¹Ø
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15
16
17
18
19
20
21
22
23
24
25
26
27
28
3U03
CPU
AC5V
AC5V
-30V
3x01
4MHZ
3C04 22P
3C05
22P
+5V
1
2
3
4
5
6
3CN2
6PIN
1
2
3
4
5
3CON4
5PINS
1
2
3
4
5
7CN1
5PINS
+5V
+5V
1
2
3
4
5
3CN1
5PINS
+5V
3R18
10K
+5V
MUTE
PP-IN3
PP-IN2
PP-IN1
PP-OUT
+5V
LATCH
REQ
CLK
DATA
GND
1
2
3CON2
2PIN
1
2
6CN1
2PIN
REQ
CLK
DATA
GND
+5V
1
2
3
4
5
3CN3
5PINS
AT24C01
3U04

5
E
F
Fig 4
PRINCIPLE CHART
0R01
0R04 0R02
0R03
0R05
0R08 0R06 0R07
0R09
0R12
0R10
0R11
0R41 3K6
0R17 0R20 0R18 0R19 0R21 0R24 0R22 0R23
AUX
MD/CD
VCR
SLIN SRIN CEN
5.1IN
1U06B 4558
12(X0) 13(X1) 2 (Y0) 1 (Y1) 5 (Z0) 3 (Z1) 6 (INH) 11(A) 10(B) 9 (C) 7 (VEE)
14(X) 15(Y)
4(Z)
16(VCC)
U105 4053A
12(X0) 13(X1) 2 (Y0) 1 (Y1) 5 (Z0) 3 (Z1) 6 (INH) 11(A) 10(B) 9 (C) 7 (VEE)
14(X) 15(Y)
4(Z)
16(VCC)
U106 4053B
47K *6 1K *6 47K *6 1K *6
0R13
0R16
0R14
0R15
FL IN FR IN
AV002
VEDIOIN
VEDIOOUT
SW
DVD VCR
AV002
SW OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
M62460
M62460
0C38
182
0C36
103
0C37683
0C39104
0C41104 0C40
182
0C42
683
0C43
103
0E16
47U
0E18 100U
0R93 47K
0C55
680
0C49
104
0C50
104
0R94
15K
0R95
7K5
0R89
22K
0C51
104
0R96
47K
0C56
680
C101
222
0R97
15K
0R98
7K50C52
104
0R91 22K
0E03 10U
0E04 10U
0E07 10U
0E10
47U
1R92
4M7
VRF
1R03 220K
1R04
100K
0E08
10U
0E05
100U
0C92 104
0C91
562
0E11
10U
0E12
10U
0E1310U
0E14
10U
0C46 104
0R64
20K
0R65
10K
0R81 1M
0R80
1K
0X01 4MHZ
C101
33P
C101
33P
VRF C101
222
0C33
104
0C30 821
0C31
222
0R88
10K
C101
222
1K
C101 222
0R91
330K
0E17
1U
1K
1R38 24K
1K
1K
47K47K47K47K
CT ST
SL
ST
SR SW CE
LT
FL
RT
FR
0R54
15K
0C14
473
1R40 3K6
1U05B 4558
0R57
15K
0C16
221
0R38 3K6
1U05A 4558
0R56
15K
0C15 221
0R36 3K6
1U06A 4558
0R53
15K
0C13
221
0R29
47K
1U11B
4558
0R25
330K
0C07
101
0R30
47K
1U11A 4558
0R28 330K
0C08 101
0R26
5K6
0R27
5K6
0R87 1K
0R84
1K
0R100 47K
1Q01 9014
0R32
330K
0R77
1K
0R78
100R
0R76 1M
0C17
222
-12V
+12V
0E61 10U
0E60
1U
0C74
473
C101
222
0C76
103
0R73
22K
0R74
15K
R747
51K
0D15
4148
0D14
4148
0D13
4148
0D10 4148 0D11 4148 0D12 4148
0R72
10K
0R71
100R
1U04D 324 U103C 324 1U04B 324
0E63 1U 0R68
56K
0E64
1U
0R69
56K
0E65 1U
0R70
56K
1Q11 9014
0R79
10K
+5V
0R60 10K
0R61 5K6
C101 222
1O1
2TRE1
3BASS11
4BASS12
5BASS13
6SELL
7FLIN
8NC
9FLO
10
11
12 SRO13 SWO14 NC 15 SWIN16 NC 17 SRIN18 NC 19 SL 20 NC 21 22
23
24
SELR25
FR26
NC27
FL28
BASS2329
BASS2230
BASS2131
TRE232
33
34 35
36 TIM
37 VDD
38 CLK
39 DAT
40 CE
41 VSS
42 O4 43 O3
44
LC75347
0E33 10U
0E32 10U
0E34 10U
0E36 10U 0E35
10U 0E68 10U
0E30 10U 0E28 10U 0E31 10U 0E27 10U
0E26 10U 0E29 10U
0E29 22U
0C89 332
0R34 4K7
0R41 4K7
0R42 4K7
0R40
4K7
0D19
4148
0D18
4148 0C90 104
+12V
0R31 560R
1Z03 6V2
-B
-B
-12V
1Z05 5V1
+12V
0R55
560R
1(y0) 5(y1) 3(y) 4(y3) 12(x0) 14(x1) 15(x2) 11(x3) 2(y2)
13(x)
10(A) 9(B) 7(INH) 6(INH)
VCC
U? 4052
1(y0) 5(y1) 3(y) 4(y3) 12(x0) 14(x1) 15(x2) 11(x3) 2(y2)
13(x)
10(A) 9(B) 7(INH) 6(INH)
VCC
1U09 4052
+B
+B
1R05 270R
1Z08 5V1
-C -12V
1Z06 5V1
+12V
0R59 470R
+C
+C +C
-C -C
+B
0E42 10U 0E40 10U 0E41 10U 0E43 10U
CEN I SL I SR I SW I
1 2 3 4 5 6
0CON3 6PINS
1 2 3 4 5
0CON4 5PINS
INH
INH INH
+5V
SW OUT
CT LT ST RT
C O SL O SR O SW O FL O FR O
FL O FR O SL O SR O C O SW O
MR AR VR FR ML AL VL FL
AL G AR ML G MR VL G VR FL G FR
FL FR
0E22 10U
0E23 10U
+12V
-12V
0C75
223
0R62 47K
0R44
22K
0R49
22K
0R48
22K
0R46
22K
0R47
22K
0R45
22K
1Z02 5V1
+12V
0R58 220R
+A
0E39
100U
0C77
104
0R63 100R
+A
0E15
47U
0C45
104
0R63 100R
0C44 104
VRF
0C35
104
0C35
104
0C35
104
0C35
104
0C35
104
0C35
104
0C24
224
0C24
224
0C20
104
0C22
473
0C21
473
0C19
104
0C18
104
0C54
223
0C48
223
0R92 330K
0E17
1U
0E17
1U
0R50 150R
+12V
0C53 104
+12V
-12V
0E38 100U 0E37 100U
+12V
-12V
0E09
47U
0E19
47U
SWT
SWT
FL Y FR Y
0E20 100U
0E24 470U
0R102 10K 0R108 10K
0R101 100
1Q20 A1015
0C77
104
+B
8
Disassembly the display screen
-Take down seven screw E on the display screen (fig4)
-Take down SIP cable terminal F (fig4)
-Move away the display screen

6
G
Fig 5
7
POWER
FLOW CHART
SIGNAL INPUT FRONT AMPLIFIER
DECODE AMPLIFIER
LIST /KEY CONTROL
Disassembly the earphone
-Take down two screw G (fig5)
-Move away the earphone panel