Roadstar LTD1088 Schematic

10.2” LCD TV/Monitor and DVD Player

Model No:LTD1088

BLOCK DIAGRAM

2

MPEG

BLOCK DIAGRAM

3

TV ELECTRICAL SPECIFICATION

REVISION 0

MODEL NO:

SUPPLY VOLTAGE DC:12V LOAD:8 Ohm

DESCRIPTION UNIT LIMIT NOMINAL No.1 NO.2 NO.3 NO.4

LTD1088 SECOM

OUTPUT:50mw

VL BAND
TUNING RANGE HIGH MHz 208 208
LOW MHz 55.75 55.75
COLOR/USABLE SENS
CH.2
CH.3 dB 32/50 22/46 24/43
CH.4 dB 32/50 22/46 24/45
IF REJ. CH.2 dB
IMAGE REJ. CH.4 dB
VHF BAND
TUNING RANGE HIGH MHz 280 280
LOW MHz 216 216

CH.10
CH.13
CH.25 dB 32/50 22/46 23/44

dB 32/50 22/46 25/46

dB 32/50 22/46 22/45 COLOR/USABLE SENS
dB 32/50 22/46

40
50

>40
>50

44
53

22/45

IF REJ. CH.10 dB
IMAGE REJ.
CH.25

LOW
COLOR/USABLE SENS

CH.14
CH.35
CH.45
CH.55
CH.69
IF RFJ. CH.14 dB
IMAGE REJ. CH.69 dB

dB

MHZ 791 791
MHZ 599.25 599.25

dB 36/52 22/46 33/48
dB 36/52 22/46 33/47
dB 36/52 22/46 35/49
dB 36/52 22/46 32/50
dB 36/52 22/46

40
50

40
50

>40
>50

>40
>50

50
52

30/50

45
52

TUNING RANGE HIGH

4

TV ELECTRICAL SPECIFICATION

MODEL NO

DESCRIPTION UNIT LIMIT NOMINAL NO.1 NO.2 NO.3 NO.4

H.V. MAX. Vp-p 1500±200 1500
L1 +12VDC V 12±1.0 11.8

L3 +5VDC V
U9 PIN2 +2.5VDC V 2.5±0.2 2.51

U10 PIN2 +3.3VDC V 3.3±0.2 3.3
DC CONSUMPTION(SOUND

MAX.)

SOUND (RF modulation deviation,SECAM
system,15K±5K)

MAX.OUTPUT
REF.THD/50mW
S/N
MIN. HUM

RESPONSE FH 6KHz FL 125Hz

LTD1088 SECOM

OUTPUT:50mw SUPPLY VOLTAGE DC:12V LOAD:8 Ohm

5.0+0.8-

0.2

W 15±2 14

W 0.7±0.2 0.7
％

dB >30 35

MV 10 5

dB 0±6 3
dB 0±6 3

2 1

5.03

5

ELECTRICAL SPECIFICATION

Production Type:DVD

Model NO:

escription Condition Unit Limit Nominal No.1 No.2 NO.3 NO.4

LTD1088 SECOM

Output: 1W/8 ohm Supply voltage:DC 12V

Video signal level
Vp-p 0.7

0.1
Sync level

0.1
Video out level

0.3

Audio out
level

Singal-to-noise radio
Dynamic range 1KHZ -60 dB dB
L/R Cross sound 1KHz/0 dB/L&R dB

1KHz Channel
unbalance

Power Consumption

Eccentricity
Scratch
Black dot
Finger Print
Vertical deviation

CD 1KHZ 0dB

DVD 1KHZ 0dB

75%color bar/75

Infinity / ∞ dB L&R

1KHz/0 dB/L&R dB 3
Standby W 4 <4

Rating
(DVD+MINOTOR)
A BEX TDV­552(DVD9)
A BEX TDV­541(DVD9)
A BEX TDV­545(DVD9)
A BEX TDV­545(DVD9)
A BEX TDV­563(DVD9)

Vp-p

Vp-p

3.0 ±

0.5

3.2 ±

0.5

dB

W

um 100
mm 1.6
mm 0.8
mm 0.065
mm 0.6

0.7 ±

0.3 ±

1.0 ±

3.2 3.2

3.4 3.4

55±5

≧50
≧50

≦20

0.3

1.0

55
55
55

＜3

15.5

＞100

＞1.6
＞0.8

＞0.065

＞0.6

6

ELECTRICAL SPECIFICATION

Production Type:AUX

Model NO:

AV IN (1KHZ. 1V –5dBm)

Description Condition Unit Limit Nominal NO.1 NO.2 NO.3 NO.4

L 1KHz, 1V mW
HEADPHONE
OUTPUT

MAX SPK.
OUTPUT

REF THD (SPK) 1KHz, 1V % 3.0 2.0
S/N (SPK) 1KHz, 1V dB 35.0 40

R 1KHz, 1V mW

L 1KHz, 1V W

R 1KHz, 1V W

LTD1088 SECOM

Output:1W/8 ohm Supply voltage:DC 12V

23±2

23±2
1±0.3
1±0.3

23
23

1.0

1.0

Luminance
White signal NIT

Bri max/Con max
Luminance

White signal NIT
Bri max/Con 50%

Amplifier FREQ
RESP(spk)

Headphone

FREQ RESP

91-EF-8004

300±

100

300±

100

20HZ dB
125HZ dB
10KHZ dB
20KHZ dB
20HZ dB
125HZ dB

10KHZ dB
20KHZ dB

±10 ±7

±3 ±1
±3 ±1
±3 ±1
±3 ±1

±3 ±1

±3 ±1
±3 ±1

300±50

300±50

7

IC BLOCK DESIGNATION

T101A

8

IC BLOCK DESIGNATION

NJM2880U

IN A1

IN B1

IN A2

IN B1

IN A11

IN B11

A/B

AD8509

V01

V02

V011

NC

NC

NC
INA1
INB1
INA2
INB2
INA3
INB3
INA4
INB4
INA5
INB5
INA6
INB6
INA7
INB7
INA8
INB8
INA9
INB9

NC

NC

NC

1
2
3
4
5
6
7
8

9
10
11
12

(Not to Scale)

13
14
15
16
17
18
19
20
21
22
23
24

AD8509

TOP VIEW

48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25

NC

NC
NC
NC
V

CC

GND
VO1
VO2
VO3
VO4
V

CC

GND
VO5
VO6
VO7
VO8
VO9
GND

V

CC

A/B
NC

NC
NC

NC

9

STK6011

IC BLOCK DESIGNATION

10

IC BLOCK DESIGNATION

24LC08B

24LC08B

FA7711V

11

IC BLOCK DESIGNATION

TDA7496L

HEF4066

12