aiko FP-L4020 User manual

SERVICE MANUAL
FP-L4020 (LC-40ILF4)
40inch TFT-LCD TV/MONITOR
2006. 10.27

1
CONTENTS
1. SAFETY PRECAUTION ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 2
2. BLOCK DIAGRAM ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 3
3. GENERAL SPECIFICATION ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 10
4. TROUBLE SHOOTING ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 13
5. CONTROLS OF FRONT PANEL ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 16
6. CONNECTIONS OF BACK PANEL ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 17
7. REMOTE CONTROL HANDSET ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 18
8. PCB LAYOUT ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 19
9. SCHEMATIC DIAGRAM ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 22
10. EXPLODED VIEW‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 32
11. REPLACEMENT PARTS LIST ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 33

2
1. Safety Instructions
Important Safety Notice
Many electrical and mechanical parts in this chassis have special safety-related characteristics.
These parts are identified by in the Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check.
Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water
Pipe, Conduit, etc) and the exposed metallic parts. Measure the AC voltage across the resistor using AC
voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug of the AC cord into the AC outlet and repeat
AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt
RMS, which is, corresponds to 0.5mA. In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.
AC Volt-meter
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
1.5 Kohm/10W
0.15uF
To Instrument’s
exposed
METALLIC PARTS
AC Volt-meter
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
1.5 Kohm/10W
0.15uF
To Instrument’s
exposed
METALLIC PARTS

3
2. BLOCK DIAGRAM
■BLOCK DIAGRAM
SVP PX56
HDMI1 RGB
Tuner
Y Pb Pr R L S-VIDEO AV1 S/PDIF
EEPROM
226,227 RXC-/+
230,231 RX0-/+
234,235 RX1-/+
238,239 RX2-/+
EEPROM
2
SCL,SD
A
44 DSCL
45 DSDA
RX0~C
2
SCL,SD
A
2
H,V
2
R,G,B
3
41 AIN_HS
42 AIN_VS
22 PC_G
30 PC_R
38 PC_B
Y,Pb,Pr
3
Y_G1 19
PB_B1 35
PR_R1
27
STV 8218
79 SC4_IN_L
80
SC4_IN_R
Y,C
2
YG_3 21
C 31
COMP_L,
R
2
23 SC3_IN_L
24
SC3_IN_R
CVB
S
Y_G2 20
PB_B2 36
PR_R2
28
U-COM
PB_B3 37 SC1_CVBS
SC1_F
B
FB1 12
SC1_F
S
FS1 10
TV_OUT
CVBS_OUT1
2
9 SC1_IN_L
10 SC1_IN_R
1 SC1_OUT_L
2
SC1_OUT_R
TV_L,R
2 SC1_L,
R
2
SC2_Y_CVBS
PR_R3
29
SC2_
C
FB2 11
SC2_F
S
FS2 9
MONITOR_OUT
CVBS_OUT2
1
14 SC2_IN_L
15
SC2_IN_R
SC2_L,
R
2
SC2_OUT_L,
R
2
47
AUDIOCLK
48 SCK
49 WS
50 SD0
I2
S
4
Buffer
Amp Amp
S/PDIF_OUT 45
LS_L 28 LS_R
29
CVBS1
8
AM_MONO
SI
F
73 SIF
78 MONO_IN
18 SC2_OUT_L
19
SC2_OUT_R
PC_L,
R
2
EEPROM
2
SCL,SD
A
SCL,SD
A
2
SCL,SD
A
2
2
SCL,SD
A
39 SCL
40 SDA
SCL 106
SDA 105
SCL0 34
SDA0 33
110 RESET
RESET_H 35 CLK0
HDMI_HOTPLUG 25 TA1in
BOOS
T
7027
+3.3V_STB
Y
10 RESET
LOCAL KEY
KEY1,
2
T
X
LED_R,
G
2
2
FLASH ROM
8051 A0~7
8
8051 A
19
8
8051 AD
8051 AD0~7
8
INVERTER2 INVERTER1 LVDS OUTPUT
INVERTER_ON
10+2
+5
V
+24V
TA~E,TCLK-/+
DDR
DQM0~3
4
DQ
S
M
D
MA 32
12
DM0,2 23,24
DM1,3 56 57
DQS 94
SVP-PX56 BLOCK DIAGRAM
196~200 ,203~207,210~211 MA11~0
135~138,144~146,149~152,157~160 MD0~15
163~166,171~174,177~180,185~188 MD16~31
139,153,167,181 DM0~3
170 DQS
93~100 AD0~7
83~90 ADDR0~7
60
I2S_PCM_CLK
61 I2S_SCLK
62 I2S_LR_CLK
63 I2S_DATA0
Level
Shift
91 P103/AN3
Buffer
88 P106/AN6/K12
89 P105/AN5/K11
P10/D8 78
AV1 AUDIO
OUT
AUDIO_OUT_L,R
HDMI2
HDMI S/W
EEPROM

4
■ IC FUNCTIONAL BLOCK DIAGRAM (SVP-PX52)

5
■ IC PIN ASSIGNMENT (SVP-PX52)

6
■IC BLOCK DIAGRAM (M30300SAGP#U5C)

7
■IC PIN OUT (M30300SAGP#U5C)

8
■IC BLOCK DIAGRAM (STV82*8 (TQFP80) ST)
■IC PIN OUT (STV82*8 (TQFP80) ST)

9
■ IC BLOCK DIAGRAM (MP7720)
■ IC PIN OUT (MP7720)
3. General Specification
No Item Specification Remark
Min Typ Max Unit
1. Video Input 1) NTSC M
2) NTSC 4.43
3) PAL
4) SECAM
3.579545 / 60 Hz
4.433618 / 60 Hz
4.433618 / 50 Hz
4.286 / 50 Hz
2. Component Input 480i/59.94/60Hz
576i/50Hz
480p/59.94/60Hz
576p/50Hz
720p/50/59.94/60Hz
1080i/50/59.94/60Hz
Table 1.
(Component)
3. RGB DTV Input 480i/59.94/60Hz
576i/50Hz
480p/59.94/60Hz
576p/50Hz
720p/50/59.94/60Hz
1080i/50/59.94/60Hz
Table 2.
(RGB DTV)
4. RGB PC Input VGA (640x480)
SVGA (800x600)
XGA (1024x768)
SXGA (1280x1024)
MAC
Table 3.
(RGB PC)

10
No Item Specification Remark
Min Typ Max Unit
5. HDMI(DVI) DTV Input 480i/59.94/60Hz
576i/50Hz
480p/59.94/60Hz
576p/50Hz
720p/50/59.94/60Hz
1080i/50/59.94/60Hz
Table 4.
(DVI DTV)
6. HDMI(DVI) PC Input VGA (640x480)
SVGA (800x600)
XGA (1024x768)
SXGA (1280x1024)
MAC
Table 3.
(DVI PC)
8. Input Voltage AC 100 ~ 240 V, 50hz / 60hz
RGB PC/RGB DTV
Input
1 D-Sub 15 Pin
PC Sound Input 1 Ear-phone Jack
(RGB PC,HDMI 공용)
HDMI(DVI) Input 1 HDMI Connector
COMPONENT Input 1 RCA 3P
Component L/R 1 RCA 2P
Full SCART
Half SCART
AV
1
1
1
SCART JACK
SCART JACK
RCA 3P (Side)
S-VIDEO Input 1 S-VIDEO JACK
S-VIDEO Audio Input 1 RCA 2P
9. External Interface
SPDIF Input 1 OPTICAL JACK
■< Table 1. > Component Signal Resolution
No Resolution H-freq(KHz) V-freq.(Hz) Pixel clock(MHz) Proposed
1. 720x480 15.73 59.94 13.500 SDTV,DD 480i(525i)
2. 720x480 15.75 60.00 13.514 SDTV,DD 480i(525i)
3. 720x576 15.625 50.00 13.500 SDTV,DD 576i(525i)
4. 720x480 31.47 59.94 27.000 SDTV 480p 59Hz
5. 720x480 31.50 60.00 27.027 SDTV 480p 60Hz
6. 720x576 31.25 50.00 27.000 SDTV 576p 50Hz
7. 1280x720 44.96 59.94 74.176 HDTV 720p 59Hz
8. 1280x720 45.00 60.00 74.250 HDTV 720p 60Hz
9. 1280x720 37.50 50.00 74.25 HDTV 720p 50Hz
10. 1920x1080 33.72 59.94 74.176 HDTV 1080i 59Hz
11. 1920x1080 33.75 60.00 74.250 HDTV 1080i 60Hz
12. 1920x1080 28.125 50.00 74.250 HDTV 1080i 50Hz

11
■< Table 2. > RGB -DTV Signal Resolution
■< Table 3. > RGB –PC , HDMI(DVI) -PC Signal Resolution
No Resolution H-freq(KHz) V-freq.(Hz) Pixel clock(MHz) Proposed
1. 720x480 31.47 59.94 27.000 SDTV 480p 59Hz
2. 720x480 31.50 60.00 27.027 SDTV 480p 60Hz
3. 720x576 31.25 50.00 27.000 SDTV 576p 50Hz
4. 1280x720 44.96 59.94 74.176 HDTV 720p 59Hz
5. 1280x720 45.00 60.00 74.250 HDTV 720p 60Hz
6. 1280x720 37.50 50.00 74.25 HDTV 720p 50Hz
7. 1920x1080 33.72 59.94 74.176 HDTV 1080i 50Hz
8. 1920x1080 33.75 60.00 74.250 HDTV 1080i 60Hz
9. 1920x1080 28.125 50.00 74.250 HDTV 1080i 59Hz
No Resolution H-freq(KHz) V-freq.(Hz) Pixel
clock(MHz) Proposed
1. 640x350 31.469 70.08 28.32 DOS
2. 720x400 31.469 70.08 28.32 DOS
3. 720x400 37.927 85.03 35.50 DOS
4. 640x480 31.469 59.94 25.17 VESA(VGA)
5. 640x480 37.861 72.80 31.50 VESA(VGA)
6. 640x480 37.500 75.00 31.50 VESA(VGA)
7. 640x480 43.269 85.00 36.00 VESA(VGA)
8. 800x600 35.156 56.25 36.00 VESA(SVGA)
9. 800x600 37.879 60.31 40.00 VESA(SVGA)
10. 800x600 48.077 72.18 50.00 VESA(SVGA)
11. 800x600 46.875 75.00 49.50 VESA(SVGA)
12. 800x600 53.674 85.06 56.25 VESA(SVGA)
13. 832x624 49.725 74.55 57.28 Macintosh
14. 1024x768 48.363 60.00 65.00 VESA(XGA)
15. 1024x768 56.476 70.06 75.00 VESA(XGA)
16. 1024x768 60.023 75.02 78.75 VESA(XGA)
17. 1024x768 68.677 85.00 95.62 VESA(XGA)
18. 1280x768 47.7 60.00 (WXGA)
19. 1280x768 60.1 75.06 (WXGA)
20. 1280x768 68.5 85.02 (WXGA)
21. 1360x768 49.0 60.00 (WXGA)
22. 1366x768 49.0 60.00 (WXGA)
23. 1280x1024 64.000 60.00 108.000 VESA(SXGA)

12
■< Table 4. > HDMI(DVI)- DTV Resolution
No Resolution H-freq(KHz) V-freq.(Hz) Pixel
clock(MHz) Proposed
1. 720x480 31.47 59.94 27.000 SDTV 480p 59Hz
2. 720x480 31.50 60.00 27.027 SDTV 480p 60Hz
3. 720x576 31.25 50.00 27.000 SDTV 576p 50Hz
4. 1280x720 44.96 59.94 74.176 HDTV 720p 59Hz
5. 1280x720 45.00 60.00 74.250 HDTV 720p 60Hz
6. 1280x720 37.50 50.00 74.25 HDTV 720p 50Hz
7. 1920x1080 33.72 59.94 74.176 HDTV 1080i 50Hz
8. 1920x1080 33.75 60.00 74.250 HDTV 1080i 60Hz
9. 1920x1080 28.125 50.00 74.250 HDTV 1080i 59Hz

13
4. TROUBLE SHOOTING
No RASTER
Check
Power B/D P801
Main B/D P703
Connector?
Check
Power B/D P802
PANEL INVERTOR
Connector?
Faster P801 &
P703 Connecto
r
Check
Main B/D P300
PANEL
Connector?
Check
Main B/D P705
Remote Control B/D
Connector?
Contact A/S Team
Faster P802
Connecto
r
Faster P300
Connector
Faster P705
Connector
No RASTER YES
YES
YES
YES
NO
NO
NO
NO
YES

14
Replace
IC706
Replace
X400
Replace
X400
No Picture
Check
IC706
PIN2 High?
Check
IC705
PIN2 High?
Check
IC703
PIN2 High?
Check
IC704
PIN2 High?
Contact A/S Team
Replace
IC705
Replace
IC703
Replace
IC704
No
PICTURE
YES
YES
YES
YES
NO
NO
NO
NO
YES
Check
X400
Check
X300
YES
YES
NO
NO

15
Replace
IC504, 505
Replace
IC502, 503
No Sound
Check
IC504, 505
PIN3 High?
Check
X500
Check
IC600
PIN2 High?
Check
IC601
PIN2 High?
Contact A/S Team
Replace
X500
Replace
IC600
Replace
IC601
No SOUND YES
YES
YES
YES
NO
NO
NO
NO
Check
IC502, 503
PIN2 High?
YES
YES
NO
YES

16
5. CONTROLS OF FRONT PANEL

17
6. CONNECTIONS OF BACK PANEL

18
7. PCB LAYOUT
■MAIN TOP SILK

19
■MAIN BOTTOM SILK