10
Decode board elements diagram 1
D2 (N C)
1N 400 1
C h a n g e P I N 4 7 f r o m L I M I T t o A D I N
2
A V CC
+12 V
+
CE 5
22 0uF /16 V
R23 0
4.7 K
Servo 3.3V
Chang C47 48 51 52 55 56 57 58 53 54 49 50 from 100pF to
47p F
LD O_ A V 33
+
CE 13
22 0uF /16 V
CB 12
0.1 uF
f r o m P I N 4 6 t o P I N 1 3 6
A d d C E 1 1 0 u F
L8
FB
MT1389E
2 0 0 3 .6 . 1 5
V 3 3
G ND
[ 2,3,4,5 ]
V 3 3
CB 7
0.1 uF
Change R25 from 392R to 560R
OP AMP.
V 3 3
RF 5V
Chang c78 80 88 89 86 84 82 from 22pF to
NC
-12 V
[ 4,5 ]
URS T#
CB 6
0.1 uF
G N D
2
A V G N D
CB 1
0.1 uF
History
V CC
2
L2
FB
U2
G9 60T 63 U
3
1
2
V I
G ND
V O
LDO_AV33
CB 5
0.1 uF
2 0 0 3 .9 . 2 6
Power ON alive source
2 RF, SERVO & MPEG - MT1389E
V 1 8
A d d t h e l o w r e s i s t a n c e o u t p u t c i r c u i t
MT1389E (LQFP256) DVD Demo Board for KHM280 PUH
R e m o v e 7 4 H 0 4
D1 (N C)
1N 400 1
2
+
CE 12
22 0uF /16 V
2
C h a n g c 2 9 f r o m C t o 0 . 1 u F ( T o i n c r e a s e l u m i n a c e S N R )
V CC
-P 12 V
CB 2
0.1 uF
-12V
2
+
CE 14
22 0uF /16 V
+12V
2
V 1 8
[ 2 ]
2 0 0 3 .9 . 9
P WR _S TB Y
D2 3
5.1 V
2 0 0 3 .7 . 1 7
+
CE 2
22 0uF /16 V
+P 12 V
A d d t h e A u d i o D A C p o w e r t o r e f e r e n c e f i l t e r i n g
V4
V CC
[ 2,3,4,5 ]
CB 14
0.1 uF
1
A V CC
2
Digital 3.3V
C h a n g e L 2 3 f r o m 8 9 V 3 3 t o D V 3 3 A
5 AUDIO DAC WMA8746&WMA8720 AND AUDIO OUT
2 0 0 3 .9 . 8
+12 V
2
5
LD O_ A V 33
4 VIDEO OUT
L6
10
2
URS T#
1 INDEX & POWER, RESET
DEVICE
L9
FB
L4
220 R
+
CE 9
22 0uF /16 V
CB 4
0.1 uF
V CC
C h a n g e C 3 2 f r o m 1 5 n F t o C
2
DV 33
Audio 5V
2
DV 33
V C C_ A U DI O
L5
220 R
L6 5
FB
Audio -12V
C h a n g e C 3 f r o m C t o 2 2 0 0 p F
Laser Diode 3.3V
P WR _S TB Y [ 2 ]
+P 12 V
A A V D D
AVCC
DV 33
[ 2,3,4,5 ]
CB 13
0.1 uF
C h a n g e t h e V i d e o o u t p u t c i r c u i t
V CC
2 0 0 3 .9 . 1 8
C h a n g e R 6 7 f r o m R t o 1 0 k
+P 12 V
5
V 1 8
C9 8
0.1 uF
OP AMP.
C h a n g e R 2 5 f r o m 1 . 5 k t o 1 . 8 k
DV33
1
V1
2
Date
R e m o v e d L 1 8 a n d c h a n g e 8 9 V 3 3 t o D V 3 3
2
NAME
4
V2
A V CC
[ 2 ]
2
V18
2
- 1 2 V
MT1389E
S T B Y
P#
V C C_ A U DI O
RF V 3 3
TP 1
URS T#
A d d U S B / d o w n l o a d c o n n e c t o r
2 0 0 3 .9 . 2 6
V 3 3
2
C h a n g e R 1 0 , r 1 5 f r o m 7 5 0 k t o 6 8 0 k
SD33
+
CE 4
22 0uF /16 V
+
CE 11
10u F/16 V
R2
10 k
2
+12 V
[ 4,5 ]
V CC
C h a n g e t h e L I M I T s i n g a l
DVDD
2
C h a n g e C E 1 1 f r o m 1 0 u F t o 1 0 0 u F
L7
FB
C h a n g e C 1 f r o m 1 0 0 p F t o 3 9 0 p F
VCC
3 MEMORY - SDRAM, FLASH/EEPROM
C h a n g t h e T R I N & T R O U T p u l l
h i g h p o w e r f r o m 5 V t o 3 V 3
MT1389E
+ 5 . 0 V
C h a n g e C 2 f r o m 0 . 1 u F t o C
+ 5 . 0 V
Digital 1.8V
AVDD
D3
1N 414 8
G ND
C h a n g e s p d i f o u t p u t p o r t
2
2
COMMOND89_KHM280_V3
Audio DAC
SUPPLY
2
DV 33
C h a n g e R 3 8 f r o m 0 t o R
2
Digital 3.3V
c h a n g e J 1 a n d J 4 c o n n e c t o r d i r e c t i o n
2
C h a n g e C E 1 1 f r o m 1 0 0 u F t o 1 0 u F
TYPE
RF V 3 3
2
V3
2
Audio +12V
Chang c77 79 87 85 83 81 from 10pF to NC
CB 10
0.1 uF
SDRAM
3
4
Rev
The original released.
V 1 8
-12 V
C h a n g e R 3 7 f r o m 0 t o R
R23 2
100R 1/2W
V 3 3
URS T#
[ 2 ]
-P 12 V
P G ND
Digital 5V
C h a n g e R 1 7 , R 1 9 f r o m 3 9 0 k t o 1 5 0 k
C h a n g e R 4 , R 5 , R 6 , R 8 , R 1 2 f r o m 1 k t o R
RFV33
V C C_ A U DI O
[ 5 ]
+
CE 19
22 0uF /16 V
A G N D
P WR _S TB Y
C h a n g e M T 1 3 8 9 p i n 1 0 0 V S D A - > V S T B a n d P i n 1 0 1 V S T B - > V S D A
A d d L C c i r c u i t
+ 1 2 V
J1 2
P WR, 8P ,P IT CH=2.54 M /M
1
2
3
4
5
6
7
8
V CC
A d d C 7 4 2 2 0 0 p F
2
-12 V
U1
A Z 1117 H-1. 8
S O T22 3
1
2
3
G
N
D
OU T
IN
Audio DAC
PICKUP HEADER
R e m o v e d L 1 2 , L 1 3 , L 1 4 , L 1 5 , L 1 6 , L 3 7 a n d c h a n g e t h i s p o w e r t o R F V 3 3
5
+
CE 6
22 0uF /16 V
Audio 5V
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