Toshiba 20VL14, Руководство по обслуживанию

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29
AV SWITCH
MM1492A
0.01
AV
SWITCH
61
4
Title Size
Document
Number
Rev
Date:
S
heet
of
VCC9A
VCC9A
VCC9A
+3.3V
+3.3V
VCC9A
VCC9A
VCC9
CVBS_1 CVBS_2 YC_Y_1 YC_C_1 YC_Y_2 YC_C_2
AUDIO_AV2_R AUDIO_AV1_R AUDIO_AV2_L AUDIO_AV1_L
AUDIO_OUT_L AUDIO_OUT_R
TV_L
TV_R
AV1_Y_or_YC_IN
AV2_YC_IN
YC_Y_2
AUDIO_AV2_L
YC_C_2
AUDIO_AV1_L
AUDIO_AV2_R
AUDIO_AV1_R
CVBS_2
AV1_Y_or_YC_IN
AV2_YC_IN
YC_Y_1 YC_C_1
AV1_Y_or_YC_IN
AUDIO_OUT_R
CVBS_1
AUDIO_OUT_L
R133 10K/0603
Q21
SMBT3904/SOT23
SMD
1
3 2
R146
NI/0603
C119 105P/0603/Y5V/50V
D5
1N4148(BAS32L)//SMD
2
1
CN14
WT-09026
1 2 3 4 5 6 7
Y C
YGND CGND
GND GND
INSERT
D7
BAV99/SMD
1 2 3
GND COM VCC
Q23 SMBT3904/SOT23
S
MD
1
3 2
R116 0/0603
Q18
KTC2875(2SC3326)/SOT23
S
MD
1
3 2
Q20
KTC2875(2SC3326)/SOT23
S
MD
1
3 2
R106
1K/0603
R104
1K/0603
CN13
RL-B223/BY/BW/AR
90
1 2 3 4 5 6 7
Y C
YGND CGND
GND GND
INSERT
CN16
RL-B322/AR/BW/BY
90
3 2 1
GND
SW
IN
C153
102P/0603/X7R/50V
C151 102P/0603/X7R/50V
R126
100/0603
R144
100/0603
R147
100/0603
C152 102P/0603/X7R/50V
C137
NI/0603/NPO/25V
CN18
RL-B223/BY/BW/AR
90
2 1
GND
IN
C122
102P/0603/X7R/50V
C121
102P/0603/X7R/50V
C154
102P/0603/X7R/50V
CN8
RL-B22/BW/BR90
2 1
GND
IN
R123
75/0603
R127
75/0603
U10
MM1492A
S
MD
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
V1-V V1-L V1-Y V1-R V1-C
S1
V2-V V2-L V2-Y V2-R V2-C
S2
V3-V V3-L V3-R STV-V STV-L STV-R
Yin2
ADR
Cin2
GND
Vout2 Rout2 Cout2 Lout2 Yout2
GND
SDA SCL MUTE
Cin1
GND
Yin1
Rout1 Lout1 Vout1
BIAS
Yout1
Vcc
Cout1
MTV-R MTV-V MTV-L
CN11
RL-B223/BY/BW/AR
90
2 1
GND
IN
CN10
RL-B22/BW/BR90
2 1
GND
IN
R131
75/0603
R122
100/0603
C132
NI/0603/NPO/25V
CN6
RL-B223/BR/BBL/AGR
90
3 2 1
GND
SW
IN
R128 75/0603
C146
104P/0603/X7R/16V
CN15
RL-B322/AR/BW/BY
90
3 2 1
GND
SW
IN
R132
75/0603
R124 75/0603
CN12
RL-B322/AR/BW/BY
90
2 1
GND
IN
C141
NI/0603/NPO/25V
C140
NI/0603/NPO/25V
R129
100/0603
R130
100/0603
+
C120 10UF/25V/4*5
R115 330/0603
R111 0/0603
R108 75/0603
C126
225P/0805/X7R/16V
Q22 SMBT3904/SOT23
S
MD
1
3 2
C125
104P/0603/Y5V/50V
R140 470K/0603
C128
225P/0805/X7R/10V
C129
225P/0805/X7R/10V
R138 470K/0603
C139
104P/0603/X7R/16V
C138
225P/0805/X7R/10V
R141 470K/0603
C134
225P/0805/X7R/10V
+
C124
100uF/16V6*5
R139 470K/0603
R119 NI/0603
CN17
RL-B322/AR/BW/BY
90
2 1
GND
IN
C135
104P/0603/X7R/16V
C131
NI/0603/NPO/25V
R121
100/0603
R135
5.1K/0603
R136
5.1K/0603
+
C145
2.2uF/50V/4*7
+
C148
2.2uF/50V/4*7
+
C149
2.2uF/50V/4*7
R143
10K/0603
+
C123 10UF/25V/4*5
C136
NI/0603/NPO/25V
R125
100/0603
R120 330/0603
R114 NI/0603
+
C150
2.2uF/50V/4*7
+
C142
22uF/16V/4*5
R145 10K/0603
R134
10K/0603
R112 75/0603
R110
75/0603
C147
104P/0603/X7R/16V
CN7
RL-B223/BR/BBL/AGR
90
2 1
GND
IN
CN9
RL-B223/BR/BBL/AGR
90
2 1
GND
IN
R142
10K/0603
R117 75/0603
L24
MLB-160808-0120L-N2/0603
C144
104P/0603/X7R/16V
C143
104P/0603/X7R/16V
L23
MLB-160808-0120L-N2/0603
D6
BAV99/SMD
1 2 3
GND COM VCC
R118
1K/0603
R113
1K/0603
R109
10K/0603
R137
10K/0603
L65
MLB-160808-0080A-N2
L64
MLB-160808-0080A-N2
R266
NI/0603
R267
NI/0603
R269
NI/0603
R271
NI/0603
R272
NI/0603
R273
NI/0603
R270
NI/0603
L67
MLB-160808-0080A-N2
L66
MLB-160808-0080A-N2
L59
BEAD/1/4W/DIP
D16 1N4148(BAS32L)//SMD
2
1
TV_IN
3
I2C_SCL
9
I2C_SDA
1,2,3,9,10,12,14
AUDIO_L_IN
10
AUDIO_R_IN
10
MTS_OUT_L
2 MTS_OUT_R
2
Y1
Cb
1
Cr
1
MUTE_AUDIO
11
AV_YC_Y
12
CVBS_OUT
12
AV_YC_C
12
OFF_MUTE
11
R L
R L
AV1
AV2
AV1
L R
AUDIO
OUTPUT