5
GM21 LCD TV
4
3
2
1
D D
C C
CONTENTS
SCHEMATIC
01. Contents
02. Input
03. GM5221
04.SPI/RESET/KEYPAD
05. LVDS_ Out
06. TTL_ Out
07. Power
08. VIDEO DECODER
SHEET
1
2
3
4
5
6
7
8
09.AUDIO 9
B B
Approval
A A
SignatureOrganization
Date
CHY 04-05-17
Title
GM21
Size Document Number Rev
040108 chy
B
of
Date: Sheet
5
4
3
2
110Tuesday, December 21, 2004
1
5
AV1-R
R2
R
0 0 0 0 0 0
C537
10u 25V
D D
C C
B B
+5V
0
L505
100uH
C512
10n
0
C513
47U 25V
0
0
J503
DB15HD
10u 25v
C515
0
C518
3.3P
C519
3.3P
+5V
MCSCL
MCSDA
C511
56P
C516 10n
C517 56P
0
R506
10K
+5V
6
1
11
7
2
12
8
3
13
9
4
14
10
5
15
C510
100n PE
X501
18.433M1
0
C552
1n
100
AV1-L
MSP34*0G
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
R508
L504
R535
R
C536
10u 25v
0
IC502
AVSUP
ANA-IN+
ANA-INANA-IN2+
TESTEN
XTAL-IN
XTAL-OUT
TP
AUD-CL-OUT
NC
NC
D-CTR-I/O1
D-CTR-I/O0
ADR-SEL
STANDBYQ
NC
R507
100
Y_L
Y_R
PC_R PC_L
R537
R540
R
R
C553
C554
1n
43
ASG
SC1-IN-L
SC2-IN-R
I2S-DA-OUT
I2S-DA-IN1
ADR-DA
C534
10u 25v
0
40
SC2-IN-L
ADR-WS
ASG
SC3-IN-R
ADR-CL
DVSUP
3u3 25v
SC3-IN-L
DVSS
C555
ASG
I2S-DA-IN2NCRESETQ
1n
C535
10u 25v
4847464544424139383433
AVSS
SC1-IN-R
MONO-IN
VREFTOP
IC204 DIP2 MSP34*5G
I2C-CL
I2C-DA
I2S-CL
I2S-WS
12345678910111213
0
C523
C522
C521
103
47u 25v
103
0
MCSCL
MCSDA
C508
C507
47P
47P
R501
220
TV_IN(CVBS)
AFT
L503
12uH
0
1n
SC4_IN_R
R502
22K
C533
353637
14
R538
R
C550
1n
0
AGNDC
SC4_IN_L
SC1-OUT-L
SC1-OUT-R
SC2-OUT-L
SC2-OUT-R
DACM-SUB
NC
NC
16
15
C524
0
CAPL-M
AHVSS
AHVSUP
CAPL-A
VREF1
DACM-L
DACM-R
VREF2
DACA-L
DACA-R
10U 25v
R503
10K
C556
1n
C532
100n PE
C509
103
0
4
R539
R
C551
1n
32
31
30
29
28
27
26
25
24
NC
23
22
NC
21
20
19
18
17
C557
0
0
R509
1K
1n
C531 1n5
C529
470p
C528 47u 25v
C527 47u 25v
R516
R515 100
C525
1000p
+5V
R510
10K
YPbPr_L
YPbPr_R
PC_R
PC_L
C530
47u 25v
D501
1N4148
0
R520 1K
100
0
RS
L506
22uH
R
C526
1000p
0
J509
1
2
3
4
5
6
0
+5V
Q506
3904
R524
R523
1K
1K
C538
1000p
+9V
0
0
L
+5V
R517
1K
+5V
Q503
3904
R514
1K
R513
1K
Audio L
0
Q502
3904
R512
1K
R511
1K
0
J504
1
2
CON5
3
4
5
+5V
R504
1
0
Q501
3904
SIF
R505
330
J502
1
2
3
4
5
6
7
8
+5V
3904
0
Audio R
Q504
R518
1K
+5V
Q505
3904
R521
1K
0
AFT
AMP_MUTE
RS
MCSCL
MCSDA
TV_IN(CVBS)
3
R519
R522
1k
2
1
丽音板
BASS
Audio-OUT L
Audio-OUT R
1k
R532
NC
+12V
R533
NC
J505
1
2
3
4
R525
AV1-L
AV1-R
1R 1/2W
C542
470u/16V
J506
1
2
3
4
5
6
C539
2n/ns
2u2/16V
+
C543
2n
C545
2n/ns
C541
D502
1N4148
C544
+
J507
J508
1
2
1
2
+
C548
220uF/25v
+
C549
220uF/25V
C540
2.2uF
1
2
3
4
5
6
7
8
2.2uF
9
10 11
R526
27k
+
C546
47u/16V
R528
10k
FOR LOUNDSPEAKER
D504
1N4148
D505
1N4148
IC503
INR
SGND
SVRR
OUTR
PGND
OUTL
TPA1517
VCC
M/SW
INL
GND GND
R527
220
3906
R530
100
1
Q508
2 3
3904
R529
100k
20
GND
19
GND
18
GND
17
GND
16
GND
15
GND
14
GND
13
GND
12
GND
+12V
D503
1N4148
+
C547
100u/16V
Q507
R531 10K
AMP_MUTE
R536
D502
1N4148
0/NS
0
IC501
+5V
A A
C506
10n
C505
47U 16V
7805
3
O
0
C502
47u 25v
2
+12V
C504
47u 25v
1
I
G
C503
10n
L502
+9V
100uH
0
L501
100uH
C501
10n
0
5
4
J501
1
2
3
4
5
0
Title
<Title>
Size Document Number Rev
<Doc> <RevCode>
C
3
2
Date: Sheet
1
of
11Tuesday, January 04, 2005
5
D D
4
3
2
1
J15
CON2
J19
C C
CON5
12345
R164
12k
CH+1 CH-1 VOL+1 VOL-1 MENU1
B B
VCC
GND
LED
IR
J20
CON4
4
123
To remote board
R165
12k
R166
12k
R167
12k
R168
12k
SOURCE1
J16
CON2
1
1
2
2
J17
CON2
J18
CON2
1
2
1
2
J21
1
2
CON2
A A
Title
GM21-key pad
Size Document Number Rev
040108 chy
B
of
Date: Sheet
5
4
3
2
110Tuesday, December 21, 2004
1
5
D D
GND
4
3
2
1
连接到
15"S
AMSUNG
屏
连接到数字板
20
19
18
17
16
15
14
13
12
11
C C
10
9
8
7
6
5
4
3
2
1
3.3V
3.3V
TXO0-
TXO0+
TXO1-
TXO1+
TXO2-
TXO2+
TXOC-
TXOC+
TXO3TXO3+
DF14A-20P-1.25H
>
B B
注意
(
右端删去了一条
!
地线需要剥
外面用导电
两端都引出带
不缠地
线;让左右两端的地线、电源线一一对应,不用相互连接
皮;相配对的 信号线和邻近的地线应做成绞线,并且要缠得较密,
网丝包裹,最外层用绝缘套;另外长度在原来的基础上变为 ;
有接地环(直径 )的带绝缘层的地线各 。让连接线成两端接地!
3 3 4 16 , 14 15
第 脚多余的电源线;右端删去了第 、 、 脚的多余地线 第 、 脚可以
+ -
200MM
5MM 60MM
)
DF14A-30P-1.25H
GND
CN3
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
长度: ;插头结构如上所示: 和
A A
200MM DF14A-20P-1.25H DF14A-
5
TXE1-
4
3
30P-1.25H
2
1