Service Manual
V, Inc
320A Kalmus Drive Costa Mesa, CA 92626
TEL : +714-668-0588 FAX :+714-668-9099
-TOP Confidential -
Model #: VIZIO P50HDM
VIZIO P50HDM Service Manual
Table of Contents
CONTENTS PAGE
Sections
1. Features 1-1
2. Specifications 2-1
3. On Screen Display 3-1
4. Factory Preset Timings
4-1
5. Pin Assignment
5-1
6. BLOCK DIAGRAM 6-1
7. Main Board I/O Connections 7-1
8. Theory of Circuit Operation 8-1
9. Waveforms 9-1
10. Trouble Shooting 10-1
11. Spare Parts List 11-1
12. Complete Parts List 12-1
Appendix
1. Main Board Circuit Diagram
2. Main Board PCB Layout
3. Assembly Explosion Drawing
Block Diagram
VINC Service Manual
VIZIO P50HDM
VIZIO P50HDM Service Manual
COPYRIGHT © 2000 V, INC. ALL RIGHTS RESERVED.
IBM and IBM products are registered trademarks of International Business Machines
Corporation.
Macintosh and Power Macintosh are registered trademarks of Apple Computer, Inc.
VINC and VINC products are registered trademarks of V, Inc.
VESA, EDID, DPMS and DDC are registered trademarks of Video Electronics Standards
Association (VESA).
Energy Star is a registered trademark of the US Environmental Protection Agency (EPA).
No part of this document may be copied, reproduced or transmitted by any means for any
purpose without prior written permission from VINC.
FCC INFORMATION
This equipment has been tested and found to comply with the limits of a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy, and if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that the interference will not occur in a particular installation. If this equipment
does cause unacceptable interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures -- reorient or relocate the receiving
antenna; increase the separation between equipment and receiver; or connect the into an
outlet on a circuit different from that to which the receiver is connected.
FCC WARNING
To assure continued FCC compliance, the user must use a grounded power supply cord and
the provided shielded video interface cable with bonded ferrite cores. Also, any unauthorized
changes or modifications to Amtrak products will void the user’s authority to operate this
device. Thus VINC Will not be held responsible for the product and its safety.
CE CERTIFICATION
This device complies with the requirements of the EEC directive 89/336/EEC with regard to
“Electromagnetic compatibility.”
SAFETY CAUTION
Use a power cable that is properly grounded. Always use the AC cords as follows – USA (UL);
Canada (CSA); Germany (VDE); Switzerland (SEV); Britain (BASEC/BS); Japan (Electric
Appliance Control Act); or an AC cord that meets the local safety standards.
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Page 1-1
File No. SG-0173
Chapter 1 Features
Wall-mountable
New WIDE HD Plasma Panel:1366 x 768 (H x V)
TruSurround XT sound system and DCDi by Faroujia video image
High definition digital interface – HDMI
HDCP supportive
Multiple-screen display (picture-on-picture/picture-in-picture)
Selectable picture mode
4-language On Screen Display
2 S-video and Composite video inputs
2 Component video inputs
2 HDMI inputs
6 audio stereos, 1 PC Mini-Jack
Supporting DVI converted to HDMI
Closed caption
Gloss front bezel
The thinnest model of this size: 99 mm
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File No. SG-0173
Chapter 2 Specification
1. OPTICAL CHARACTERISTICS
Item Specification
Display Pixels 1366 (H) x 768 (V) pixels
Pixel Pitch 0.810 mm (H) X 0.810mm (V)
Pixel Type Non-stripe
Color Depth 1,024 (R) x 1,024 (G) x 1,024 (B) colors
Active Display Area 1106.5 mm (H) x 622.1 mm(V)
Brightness (panel spec) 1000 cd/m2 (Typical)
(w/glass filter) Min.300 cd/m
Contrast ratio (panel spec) 8000:1 (Typical, dark room)
Color Coordinates (typical)
White (Panel spec) x=0.300±0.02, y=0.300±0.02
White (w/glass filter) Warm (5400K)
Standard (6500K)
Cool (9300K):
2. INPUT SOURCE
RGB Signal： H: support to 30-80KHz
V: support to 60-85Hz
Pixel Clock: support to 108MHz
HDMI Signal： H: 15.734KHz V: 60Hz (480i)
H: 31KHz V: 60Hz (480p)
H: 45KHz V: 60Hz (720p)
H: 33KHz V: 60Hz (1080i)
S-Video： Video (Y): Analog 0.1Vp-p/75Ω
Video (C): Analog 0.286p-p/75Ω
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Composite Video signal: H: 15.734KHz V: 60Hz (NTSC)
Component signal: YPbPr/YCbCr
H: 15.734KHz V: 60Hz (NTSC-480i)
H: 31KHz V: 60Hz(NTSC-480p)
H: 45KHz V: 60Hz(NTSC-720p)
H: 33KHz V: 60Hz(NTSC-1080i)
3. INPUT CONNECTORS
Input Label Connector Type Input Label Connector Type
SERVICE RJ-11 x 1 ANALOG HD1 YPb/Cb Pr/Cr RCA Jack x 3
Audio RCA Jack x 2
DIGITAL HD1 19 pin HDMI x 1
Audio RCA Jack x 2
ANALOG HD2 YPb/Cb Pr/Cr RCA Jackx 3
Audio RCA Jack x 2
DIGITAL HD2 19 pin HDMI x 1
Audio RCA Jack x 2
AV1 RCA Jack (CVBS) x 3
S-video 4 pin mini DIN x 1
RGB D-sub 15 pin x 1
Mini Jack x 1 (Audio
input)
AV2 RCA Jack (CVBS) x 3
S-video 4 pin mini DIN x 1
4. OUTPUT CONNECTORS
a. Audio RCA Jack x 2
b. 3.5mm Mini-jack earphone x 1
5. POWER SUPPLY
Consumption: 550W MAXPower OFF: less than 3W
6. SPEAKER
Output 8Ω/10W (max) X2
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7. ENVIRONMENT
Operating
a. Temperature: 0~40℃
b. Relative humidity: 20%~80% RH
c. Altitude: 0~6,560 ft
Non-operating
a. Temperature: -20~60℃
b. Relative humidity: 10%~90% RH
c. Altitude: 0~9,840 ft
8. DIMENSIONS
a. Height: 871 mm
b. Width: 1241mm
c. Depth: 310 mm (with standard), 99 mm (without standard)
9. WEIGHT
a. Net: 55.2 +/- 0.5 kgs
b. Gross: 65.2 +/- 0.5 kgs
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File No. SG-0173
Chapter 3 On Screen Display
Main unit button
POWER
MENU
▲
▼
VOL-/W
VOL+/X
INPUT
OSD Adjustment
Mode
Image Settings
VIDEO
Picture Mode(User, Vivid,
Movie, Game, Sport)
Brightness(0~100)
Contrast(0~100)
VIDEO Saturation(0~100)
VIDEO Hue(-50~50)
VIDEO Sharpness(0~24)
Advanced
VIDEO Noise Reduction
VIDEO Motion(0~16)
VIDEO Digital(0~64)
VIDEO Fleshtone Off, High, Moderate, Low
VIDEO
Dynamic Contrast
(0, 1, 2, 3)
PC Auto Adjustment
PC Image Position
PC Phase
PC Clocks / Line
PC Color Temp
PC Warm(5400K)
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PC Standard(6500K)
PC Cool(9300K)
PC User
PC Red(0~100)
PC Green(0~100)
PC Blue(0~100)
Display Settings
VIDEO Aspect Ratio
Wide, Normal,
Zoom, Panoramic*
PC Aspect Ratio Wide, Normal
PIP
PIP Mode
Off, Large PIP, Small PIP,
POP
PIP Position
Top-Left, Top-Right,
Bottom-Left,
Bottom-Right
PIP Input**
Audio Settings
Bass(0~20)
Treble(0~20)
Balance(-10~10)
SRS TS XT(Off, On)
Auto Volume(On, Off)
Speakers(On, Off)
Audio Out***
Fixed Volume,
Variable Volume
Parental Controls
VIDEO Password
VIDEO
Settings
VIDEO TV Rating
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File No. SG-0173
VIDEO TV Youth
(Unblocked,
Blocked)
VIDEO TV Youth 7
(Unblocked,
Blocked)
VIDEO TV G (Unblocked,
Blocked)
VIDEO TV PG (Unblocked,
Blocked)
VIDEO TV 14 (Unblocked,
Blocked)
VIDEO TV MA (Unblocked,
Blocked)
VIDEO Unblocked
VIDEO Movie Rating
VIDEO Movie G
(Unblocked,
Blocked)
VIDEO Movie PG
(Unblocked,
Blocked)
VIDEO Movie PG-13
(Unblocked,
Blocked)
VIDEO Movie R
(Unblocked,
Blocked)
VIDEO Movie NC-17
(Unblocked,
Blocked)
VIDEO Movie X
(Unblocked,
Blocked)
VIDEO
Unblocked
Block Unrated (No, Yes)
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File No. SG-0173
VIDEO
Change Password
VIDEO
Please enter new
password
VIDEO
Please re-enter new
password
VIDEO
Clear All (No, Yes)
Setup
Closed Caption
Display
Off, CC1, CC2, CC3,
CC4, TEXT1, TEXT2,
TEXT3, TEXT4
Captions on mute
(On, Off)
Language English, Français,
Español, Italiano
Factory Reset (Yes, No)
Image Cleaner
Firmware Version
* HDMI and Component 720P/1080i inputs do not support Panoramic.
** See below for detailed information regarding the PiP sources.
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File No. SG-0173
Main \ Sub
AV1
(S-VIDEO)
AV2
(S-VIDEO)
AV1
(VIDEO)
AV2
(VIDEO)
Analog
HD1
Analog
HD2
Digital
HD1
Digital
HD2
RGB
AV1
(S-VIDEO)
x x x x x x x x
AV2
(S-VIDEO)
x x x x x x x x
AV1
(VIDEO)
x x x x x x x x
AV2
(VIDEO)
x x x x x x x x
Analog
HD1
x x x x x x
Analog
HD2
x x x x x x
Digital
HD1
x x x x x x
Digital
HD2
x x x x x x
RGB
x x x x x x
Remark：
(1)：“x” – Indicates which inputs are available for PIP and POP modes.
(2)：For AV1 and AV2, S-Video has priority. If a signal is connected to AV1 S-Video by itself or
signals are connected to AV1 S-Video and AV1 Video simultaneously, then S-Video will
be the only choice for AV1. If a signal is connected to AV1 Video only, then Video will be
the only choice for AV1. The same input priority scheme applies to AV2.
*** When Speakers off
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File No. SG-0173
Chapter 4 Factory preset timings
This timing chart is already preset for this plasma monitor.
1. PC analog preset modes
Mode
No.
Resolution
Refresh
Rate
(Hz)
Horizontal
Frequency
(KHz)
Vertica l
Frequency
(Hz)
Horizontal
Sync
Polarity
(TTL)
Vertica l
Sync
Polarity
(TTL)
Pixel Rate
(MHz)
Remark
1 640x480 60 31.5 59.94 N N 25.175 Windows
2 640x480 75 37.5 75.00 N N 31.500 Windows
3 800x600 60 37.9 60.317 P P 40.000 Windows
4 800x600 75 46.9 75 P P 49.500 Windows
5 800x600 85 53.7 85.06 P P 56.250 Windows
6 1024x768 60 48.4 60.01 N N 65.000 Windows
7 1024x768 70 56.5 70.07 N N 75.000 Windows
8 1024x768 75 60.0 75.03 P P 78.750 Windows
9 1366X768 60 47.7 60.00 P N 85.500 Windows
10 1280X1024 60 63.98 60.02 P P 108.000 Windows
Remark： P：positive，N： negative 1024x768 @60 Hz: Primary
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2. HD video digital preset modes at HDMI
Mode No. Resolution
1 480i
2 480p
3 720p
4 1080i
3. HD digital preset modes at DVI
Through HDMI interface by an optional interface cable 2.3.3.1 video input.
3. 1 Video input
Mode No. Resolution
1 480i
2 480p
3 720p
4 1080i
3.2 PC input
Mode
No.
Resolution
Refresh
Rate
(Hz)
Horizontal
Frequency
(KHz)
Vertical
Frequency
(Hz)
Horizontal
Sync
Polarity
(TTL)
Vertical
Sync
Polarity
(TTL)
Pixel
Rate
(MHz)
Remark
1 640x480 60 31.5 59.94 N N 25.175 Windows
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File No. SG-0173
Chapter 5 Pin Assignment
1.Input
There are analog and digital connectors as video input source in this model.
1.1 Analog
1.1.1 RGB Connector
a. Type: Analog
b. Frequency: H: 30-80KHz V: 60-85Hz
c.
Signal level: 0.7Vp-p
d.
Impedance: 75Ω
e.
Synchronization
H/V separate sync:
H/V composite sync: Sync on Green
TTL
TTL
f.
Video bandwidth: 135MHz
g.
Connector type: 15-pin D-Sub, female
5
11
1
610
15
5
10
15
1
6
11
Pin Number Pin Assignment Pin Number Pin Assignment
1 Red video input 9 +5V
2 Green video input 10 Ground
3 Blue video input 11 No connection
4 Ground 12 (SDA)
5 Ground 13 Horizontal sync
(Composite sync)
6 Red video ground 14 Vertical sync
7 Green video ground 15 (SCL)
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1.1.2 RCA-type (Yellow) Composite Video Connector
a. Frequency: H: 15.734KHz V: 60Hz (NTSC)
b.
Signal level: 1Vp-p Sync (H+V): 0.3V below Video (Y+C)
c.
Impedance: 75Ω
d.
Connector type: RCA jack
1.1.3 S-Video Connector
a. Frequency: H: 15.734KHz V: 60Hz (NTSC)
b.
Signal level: Y: 1Vp-p C: 0.286Vp-p
c.
Impedance: 75Ω
d.
Connector type: 4-pin mini DIN
1.1.4 Y-Cb/Pb-Cr/Pr Component video signal
a. Frequency: H: 15.734KHz V: 60Hz (NTSC-480i)
H: 31KHz V: 60Hz (NTSC-480p)
H: 45KHz V: 60Hz (NTSC-720p)
H: 33KHz V: 60Hz (NTSC-1080i)
b. Signal level: Y: 1Vp-p
Pb: ±0.350Vp-p Pr: ±0.350Vp-p
c. Impedance: 75Ω
d.
Connector type: RCA jack
1.1.5 PC audio in
a. Signal level: 1Vrms
b. Impedance: 47KΩ
c. Connector type:
3.5 φ mini jack
443
2
1
1, 2 = GND
3 = Luminance (Y)
4 = Chrominance(C)
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1.1.6 Video audio in
a. Signal level: 0.7Vrms
b. Impedance: 47KΩ
c. Frequency Response: 250Hz-20KHz
d. Connector type: RCA L/R:
1.2 Digital - HDMI
a. Frequency: H: 15.734KHz V: 60Hz
H: 31KHz V: 60Hz
H: 45KHz V: 60Hz
H: 33KHz V: 60Hz
b. Polarity: Positive or Negative
c. Type: Type A
d. Pin Assignment: Please see below
Pin 1
Pin 19
Pin 2
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File No. SG-0173
Pin Signal Assignment Pin Signal Assignment
1 TMDS Data2+ 2 TMDS Data2 Shield
3 TMDS Data2- 4 TMDS Data1+
5 TMDS Data1 Shield 6 TMDS Data1-
7 TMDS Data0+ 8 TMDS Data0 Shield
9 TMDS Data0- 10 TMDS Clock+
11 TMDS Clock Shield 12 TMDS Clock-
13 CEC 14 Reserved (N.C. on device)
15 SCL 16 SDA
17 DDC/CEC Ground 18 +5V Power
19 Hot Plug Detect
2. Output
2.1 Earphone
a. Signal level: 1Vrms (max.)
b. Impedance: 32Ω
c. Output: 50 mW
d. Connector type: Earphone mini jack
2.2 Audio output
a. Signal level: 0.7Vrms
b. Impedance: 47KΩ
c. Frequency Response: 250Hz-20KHz
d. Connector type: RCA L/R:
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File No. SG-0173
Chapter 6 Block Diagram
System Block Diagram
J8CN2
IR BOARD
CN13
EMI
Fillter
CN12
MAIN BOARD
LVDS BOARD
CN5 CN3
J7
POWER BOARD
Y DRIVER BOARD
X DRIVER BOARD
CN1
W1
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File No. SG-0173
Main board System Block Diagram
NC7SB3157
U18 BUS SW
SV4_CTZ
A3/B3/C3_CTZ
U42 IDTQS3253
HDMI1 AUDIO SW
IPCLK1/BHS/BVS/BDE
U27 MAX4550
AUDIO SW
4/2 I/O
51_RXD/51_TXD
HDMI1_AUDIO_L/R
W12
Frame Store
DDR Interface
SV4_HUD
A3/B3/C3_CTZ
W6
AudioAV2_R/L
IPCLK0/AHS/AVS/AHREF_DE
U42 Sil 9011
HDMI RS
MSTR0_SCL/MSTR0_SDA
AudioAV1_R/L
CN17
W13
ATSC Y
Pr Pb
Digital B
Input
A4/B4/C4_HUD
IPCLK0/AHS/AVS/AHREF_DE
U32 P4450G
AUDIO
PROCESS
2 Wire
Controller
AudioAV1_R/L
W10
U33 PT2308
AUDIO DRIVER
Y Pr Pb
2
Digital A
Input
A4/B4/C4_CTZ
CH4_R/L
U24 M61323FP
VEDIO SW
ANLOG DDC
OCM External
SRAM
COMP2_Audio_R/L
HY5DU56822CT-D4
U16 DDR RAM HUD
ARXD_HUD
U34 PT2308
AUDIO DRIVER
VS / HS
2
UC_SCL/UC_SDA
JTAG Boundary
Scan
A4/B4/C4
AIR_RAW_HS_CS/AIR_RAW_VS
FL8125_HUD
VGA_SCL / VGA_SDA
IPCLK1/BHS/BVS/BDE
VGA_AUDIO_L/R
2 Wire
Controller
CN16
HY5DU56822CT-D4
U17 DDR RAM CTZ
ATXD
CH1_R/L
R G B
JTAG Boundary
Scan
AIR_RAW_HS_CS/AIR_RAW_VS
51_RXD/51_TXD
BDATA[0:23]
ATXD_HUD
CH2_R/L
Display
HDMI2 AUDIO
Analog
input
3
VGA_AUDIO_L/R
AUDIO
U22 M61323FP
VEDIO SW
UART
VEDIO
ADATA[0:23]
ARXD_HUD
ARXD
2 Wire
Controller
FL8532_CTZ
1
COMP2_Audio_R/L
Serial ROM
Interface
AUDIO L/R
OUT
ATXD_HUD
W1
Frame Store
DDR Interface
U38
SST89C58
U23 M61323FP
VEDIO SW
CH3_R/L
COMP1_Audio_R/L
HDMI1 AUDIO
LVDS
Display
Interface
Headphone
ATXD
CN13
U40 24LC128
EEPROM(8051)
VGA_SCL / VGA_SDA
A2/B2/C2_CTZ
GPIO
LVDS
Display
Interface
U21 24LC02
EEPROM VGA
AudioAV1_R/L
B1_CTZ/C1_CTZ
MSTR2_SCL/MSTR2_SDA
XU1 A29LV320D
MEMERY_CTZ
ARXD
2 Wire
Controller
U37 CS3443
HDMI2 LR DAC
CN12
BDATA[0:23]
GPIO
ARXD_HUD
UART
Y2/C2
B1_HUD/C1_HUD
Y Pr Pb
MSTR1_SCL/MSTR1_SDA
TDA8946AD
AUDIO_AMP
U26 MAX232A
I2CCM
U45 74HCT14
Inverting Schmitt Trgger
J10
BDATA[0:23]
IPCLK1/BHS/BVS/BDE
ATXD_HUD
Y1/C1
SV3_CTZ/A1_CTZ
A2/B2/C2_HUD
SCL-33V / SDA-33V
MSTR1_SCL/MSTR1_SDA
JTAG_BS_TCK/TDO/TMS/TDI/TRST
W13
U36 CS3443
HDMI1 LR DAC
W14
J9
Analog
input
W5
CVBS1
SV3_HUD/A1_HUD
A2/B2/C2
U12 SST25VF040
FLASH 512K HUD
KEY PAD
CN5
JTAG_BS_TCK/TDO/TMS/TDI/TRST
W11
1
ADATA[0:23]
COMP1_Audio_R/L
U37 24LC02
EEPROM HDMI1
CVBS2
SV2_CTZ
A3/B3/C3_HUD
Lineout_R/L
W8
W7
J8
Speaker L
U28 MAX4550
AUDIO SW
4/2 I/O
U35 Sil 9011
HDMI RS
U20 4052
I/O SW
U25 F75373S
SV2_HUD
A3/B3/C3_HUD
U46 IDTQS3253
HDMI1 AUDIO SW
HLIN/HRIN
U11 24LC32
EEPROM HUD
U40 24LC02
EEPROM HDMI2
J7
Speaker R
HDMI2_AUDIO_L/R
3
MSTR2_SCL/MSTR2_SDA
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File No. SG-0173
Chapter 7 Main Board Internal I/O Connections
CN1 “DC POWER INPUT’
PIN Description
1 PDP_+5Vsc
2 PDP_+5Vsc
3 PDP_+5Vsc
4 GND
5 GND
6 GND
7 PDP_+12V
8 PDP_+12V
9 GND
10 GND
11 PDP_+12V_FAN
12 PDP_FGND
CN2 “DC POWER INPUT’
PIN Description
1 PDP_Audio
2 PDP_Audio
3 GND
4 GND
CN3 “DC POWER INPUT/OUTPUT’
PIN Description
1 GND
2 VS_ON
3 RLY_ON
4 PDP_+5Vsb
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File No. SG-0173
CN5 CONNECTION “KEYPAD”
PIN Description
1 LED2_KEYPAD
2 KEY_VCC
3 IR
4 ADC_IN2
5 NC
6 GND
7 +3.3V_LBADC
8 ADC_IN1
9 LED1_KEYPAD_BUF
10 GND
P1 GND
P2 GND
CN6 CONNECTION “HDMI/ATSC_UP”
PIN Description
1 +5V
2 51_TXD
3 51_RXD
4 GND
CN7 CONNECTTION “ODC2BI”
PIN Description
1 VGA_SCL_CTZ
2 VGA_SDA_CTZ
3 GND
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File No. SG-0173
CN12 FAN CONNECTION
PIN Description
1 NC
2 FANIN1
3 +12V_FAN
4 FGND
CN13 FAN CONNECTION
PIN Description
1 FANIN1
2 +12V_FAN
3 FGND
J7 CONNECTION “SPEAKER R”
PIN Description
1 RL-
2 RL+
3 NC
J8 CONNECTION “SPEAKER L”
PIN Description
1 LL-
2 LL+
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File No. SG-0173
W1 CONNECTION “LVDS”
PIN Description PIN Description
1 GND 2 TXA3+
3 TXA3- 4 TXAC+
5 TXAC- 6 GND
7 TXA2+ 8 TXA2-
9 TXA1+ 10 TXA1-
11 TXA0+ 12 TXA0-
13 GND 14 GND
15 +5V_SW 16 +5V_SW
17 +5V_SW 18 GND
19 GND 20 NC
21 NC 22 NC
23 NC 24 TXB3+
25 TXB3- 26 GND
27 VS_ON 28 SCL_33V
29 SDA_33V 30 NC
31 GND
J3 SELECT KEY POWER
PIN Description Default
1-2 +3.3V_I/O ON
2-3 +5V OFF
“ON” ADD JUMPER , “OFF” NO JUMPER
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J9 CONNECTION “PROGRAMUPDATA”
PIN Description Default
1-2 ARXD ON
2-3 ARXD_HUD OFF
“ON” ADD JUMPER , “OFF” NO JUMPER
J10 CONNECTION “PROGRAMUPDATA”
PIN Description Default
1-2 ATXD ON
2-3 ATXD_HUD OFF
“ON” ADD JUMPER , “OFF” NO JUMPER
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File No. SG-0173
Chapter 8 Theory of Circuit Operation
The operation of User Interface
The following diagram provides a brief overview of the user-interactive components of
the firmware.
Figure 8-1 User Interface Block Diagram
The operation of keypad
There are 8 keys to control and select the function of SHD-3010 and also have two LED to
indicate the status of operation. They are “Power, Source, MENU, ▼▲, + -” keys and LED.
1.The power key controls video processor FLI8532, FLI8532 will receive a low signal to turn
on or off system while press the power key.
2.The other seven keys are on high state because the pull up resistor but will transit to low
state dependent on which key pressed, and the state will be reader by FLI8532 through
internal ADC to act corresponding function.
3.The LED is constructed with two color LED which color is Yellow and Green. The FLI8532
direct control the LED’s when FLI8532 (VPCON) is low the LED is Yellow (Close power)
when FLI8532 (VPCON) is high the LED is Green (Open power).
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The operation of Video Processor FLI8532
The Genesis Microchip FLI8532 includes an integrated 3-D Digital Video Decoder with
Faroudja DCDi CinemaTM video format conversion, video enhancement, and noise
reduction.
The auto-detection and Faroudja DCDi CinemaTM technology allow the FLI8532 to detect,
process, and enhance any video or PC graphic format. The FLI8532 supports many
worldwide VBI standards for applications of Teletext, Closed Captioning, V-Chip, and other
VBI technologies.
Figure 8-2 FLI8532 Block Diagram
Clock Generation:
The FLI8532 features six clock inputs. All additional clocks are internal clocks derived from
one or more of these:
1.Crystal Input Clock (TCLK and XTAL). This is the input pair to an internal crystal oscillator
and corresponding logic. A 19.6608 MHz TV crystal is recommended for best noise
immunity with the 3D decoder. Alternatively, a single-ended TTL/CMOS clock oscillator can
be driven into the TCLK pin (leave XTAL as N/C in this case). If an external crystal is being
used, connect a 10K pull-up to OCMADDR_19. See Figure 9.
2.Digital Input Video/Graphics Clocks (IPCLK0, IPCLK1, IPCLK2 and IPCLK3)
3.Audio Delay Clock (AVS_CLK)
The FLI8532 TCLK oscillator circuitry is a custom designed circuit to support the use of an
external oscillator or a crystal resonator to generate a reference frequency source for the
FLI8532device.
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Analog Input Port (AFE):
The FLI8532 chip has a sophisticated Analog Front End with 16 reconfigurable inputs through
and analog multiplexer to anti-alias filters before the Analog to Digital Converters (ADCs).
These integrated features eliminate the need for any devices between the input connector
and the pin of the FLI8532.
Figure 8-3 Analog Front End
The figure above depicts the data-path for the AFE and Decoder blocks with connections to
the input multiplexer that selects whether the data follows the Main Video Channel or PIP
video channel.
The analog front end of FLI8532 provides the capability to capture 16 analog video inputs
which can be a combination of Composite (CVBS), S-Video (SY, SC), YPrPb (Y, Pr, Pb) or
RGB (R,G, B).
Digital Input Port (DFE):
The Digital Input Port is a 48bit data input with flexible configuration to support a wide range of
digital sources. It consists of two 24bit ports (PORTA and PORTB), two sets of control signals
(VS, HS, ODD, etc.), and 4 input clocks. Up to 4 different inputs are supported as long as at
least 2 of these inputs are 8bit CCIR656.
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PORTA also includes optional signals (DIP_EXT_CLAMP, DIP_EXT_COAST,
DIP_CLEAN_HS_OUT) for interfacing to external ADC/PLL devices. These signals are not
present on PORTB. Bits 7 to 0 of PORTA can be configured as a bidirectional interface for
media card applications. Inputs to the digital input port are TTL compatible with a maximum
clock speed of 135MHz. Sync and clock polarity is programmable.
Due to pin sharing, PORTB is not available when using 48bit double wide TTL output to the
panel.
The following digital video formats are supported by FLI8532 digital video graphic port:
• ITU-BT-656
• 8-bit 4:2:2 YCbCr or YPbPr
• 16-bit 4:2:2 YCbCr or YPbPr
• 24-bit 4:4:4 YCbCr or YPbPr
• 24-bit RGB
Digital Input Port Configuration:
The Digital Input Port offers flexible mapping of the input buses for PORTA and PORTB and
allows individual Bus Flipping (MSB to LSB) for each group of 8bit inputs. The purpose of this
flexible mapping is to ease the circuit board design when interfacing to other devices. This
table below shows how the input DATA buses can be arbitrarily assigned through host
registers.
Figure 8-4 Digital Input DATA bus assignment
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LVDS Transmitter:
Two LVDS channels (A and B) are available on the output of the FLI8532 to transmit data and
timing information to the display device.
The following diagram shows the available LVDS mapping for 30-bit LVDS output which is
applying to PDP panel spec:
30-bit LVDS Output Stream
To Configure for 30-bit LVDS with this data mapping:
LVDS_POWER (0x8726) = 0x3F
LVDS_DIGITAL_CTRL (0x8728) = 0bUU00UU00, where U is user options.
DISPLAY_CONTROL(0x862C)[11] = 1
For 30-bit LVDS, the following bus remappings are supported:
Swap LVDS serial stream (6:0)、(0:6) with register 0x8728[7]
Swap LVDS positive and negative differential outputs with register 0x8728[3]
Swap LVDS bus data CH0_EVEN C3_ODD and CH1_EVEN C3_EVEN with register
0x8728[2]
Note:
OSD OVL data bit is enabled with register 0x8500[9] with polarity controlled by 0x8500[10].
If 0x8500[9] = 0, then OSD OVL LVDS bit is clamped to 0.
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On Chip Microcontroller:
The FLI8532 on-chip micro-controller (OCM) serves as the system micro-controller.
It programs the FLI8532 and manages other devices in the system such as the keypad and
non-volatile RAM (NVRAM) using general-purpose input/output (GPIO) pins.
The OCM can address a 22-bit address space to utilize 4 MB external ROM
Figure 8-5 FLI8532 OCM block diagram
The OCM executes a firmware program running from external ROM, as well as driver-level (or
Application Programming Interface – API) functions residing in internal ROM.
This is illustrated above. A parallel port with separate address and data busses is available for
this purpose. This port connects directly to standard, commercially available ROM or
programmable Flash ROM devices in either 8 or 16-bit configurations. External Flash-ROM
memory requirements range from 512Kbytes to 4Mbytes depending on the application.
Both firmware and OSD content must be compiled into a HEX file and then loaded onto the
external ROM. The OSD content is generated using Genesis Workbench. Genesis
Workbench is a GUI based tool for defining OSD menus, navigation, and functionality.
FLI8532 I2C Master Serial Protocol :
The two-wire protocol consists of a serial clock MSTR_SCL and bi-directional serial data line
MSTR_SDA. The FLI8532 acts as bus master and drives MSTR_SCL and either the master
or slave can drive the MSTR_SDA line (open drain) depending on whether a read or write
operation is being performed.
There are three isolated Master Serial busses, all driven by a common Master Serial
Controller. These busses can be independently taken “off-line” or pulled up to different
voltages without affecting the other busses.
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The two-wire protocol requires each slave device to be addressable by a 7-bit identification
number.
A two-wire data transfer consists of a stream of serially transmitted bytes formatted as shown
in the figure below. A transfer is initiated (START) by a high-to-low transition on MSTR_SDA
while MSTR_SCL is held high. A transfer is terminated by a STOP (a low-to-high transition on
MSTR_SDA while MSTR_SCL is held high) or by a START (to begin another transfer).
Figure 8-6 Two-Wire Protocol Data Transfer
Each transaction on the MSTR_SDA is in integer multiples of 8 bits (i.e. bytes).
The number of bytes that can be transmitted per transfer is unrestricted. Each byte is
transmitted with the most significant bit (MSB) first. After the eight data bits, the master
releases the MSTR_SDA line and the receiver asserts the MSTR_SDA line low to
acknowledge receipt of the data.
The master device generates the MSTR_SCL pulse during the acknowledge cycle. The
addressed receiver is obliged to acknowledge each byte that has been received.
The operation of Video Processor FLI8125
FLI8125 is another video processor designed by Genesis. In this product, we use FLI8125 to
process most of PIP source input and then output digital video signal to FLI8532.
Figure 8-7 FLI8125 System Block Diagram
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Clock Generation
The FLI8125 accepts the following input sources:
1.Crystal Input Clock (TCLK and XTAL). This is the input pair to an internal crystal oscillator
and corresponding logic. Alternatively, a single ended TTL/CMOS clock input can be driven
into the XTAL pin (leave TCLK as n/c in this case).
2.External Clocks on various GPIOs for test purposes
3.Host Interface Transfer Clock (SCL), I2C slave SCL for DDC2Bi and another SCL for Serial
Inter-Processor Communication (SIPC)
4.Video Port VCLK
5.Second Video port clock. This is shared with ROM Address line 11. This is available only
when parallel ROM interface is not used.
Clock Synthesis
Additional synthesized clocks using PLLs:
1.Main Timing Clock (T_CLK) is the output of the chip internal crystal oscillator. T_CLK is
derived from the TCLK/XTAL pad input.
2.Reference Clock (R_CLK) synthesized by RCLK PLL using T_CLK or EXTCLK as the
reference.
3.Input Source Clock (SCLK) synthesized by SDDS PLL using input HS as the reference. In
case of analog composite video input this runs in open loop. The SDDS also uses the
R_CLK to drive internal digital logic.
4.Display Clock (DCLK) synthesized by DDDS PLL using IP_CLK as the reference. The
DDDS also uses the R_CLK to drive internal digital logic.
5.Fixed Frequency Clock (FCLK) synthesized by FDDS. Used as OCM_CLK domain driver.
6.Extended Clock (ECLK) synthesized by EDDS. Used by the decoder.
7.A fixed frequency clock created by LDDS (LCLK). Used by the expander in case of
panoramic scaling.
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Figure 8-8 FLI8125 Internally Synthesized Clocks
Analog Front End
The Analog Front End is responsible for selecting and capturing the desired analog input
video stream. Overall application cost is reduced by providing analog switching capabilities for
16 separate analog signals. These signals are re-configurable as different combinations of
composite, S-Video, YPrPb and RGB video streams depending upon the end application.
The Analog Front End directs inputs through an analog multiplexer to anti-alias filters before
the Analog to Digital Converters (ADCs). These integrated features eliminate the need for any
devices between the input connector and the AFE pin connection.
The following figure depicts the data-path for the AFE and Decoder blocks with connections to
the input multiplexer .
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Figure 8-9 Analog Input Port
The Analog Front End provides the capability to capture 16 analog video inputs which can be
a combination of Composite (CVBS), S-Video (SY, SC), YPrPb (Y, Pr, Pb) or RGB (R, G, B).
The Analog Source Selectors are responsible for switching the desired analog inputs to the
ADCs for digitization. There are two types of switching required: Channel Selection, Fast
Blank Switching.
Digital Front End (Digital Processing after AFE)
The DFE consists of 3 channels that can support the following Fixed-position formats:
Channels 1, 2 and 3 can be either R,G,B, or Y,U,V or 2 channels of Y and C or one channel of
CVBS. The DFE performs Digital Clamp Loop Control for each channel, AGC Control, Color
Conversion, Chroma Downscaling and 4fSC re-sampling. The Input to the DFE is 10 bit
40MHz Data. The Output is 4fsc Sampled CVBS, Y, C or YUV or just 10 bit CVBS.
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Figure 8-10 Digital Datapath
Digital Input Port
The Digital Input Port is 24-bit input bus that can be connected to external DVI receivers,
video decoders, etc. and is able to accept either 8-bit CCIR656 data, 16-bit 4:2:2 YUV data or
24-bit RGB data.
For RGB input data, a selectable color space converter is used to transform RGB video input
data from a DVI Rx to internal 16-bit 4:2:2 YUV. This allows the input data to be processed by
the Horizontal Enhancment Module (HEM), ACC, and ACM in the image processing block.
Other RGB input data streams, such as computer inputs, remain in the RGB space and are
processed as such.
The 24-bit Digital Input Port provides control signals to simplify signal detection. CCIR656
data streams embedd all timing markers, for the 24-bit and 16-bit inputs the following signals
are provided:
CLK1 – Input pixel clock for 24-bit, 16-bit or CCIR656 inputs
HS/CSYNC – Horizontal sync or composite sync signal
VS/SOG – Vertical sync input or SOG input
DV/CLAMP – Data valid input indicator
NOTE: Unused pins of the Digital Input Port can be reprogrammed as GPIOs to increase the
total number of GPIOs available.
Inputs to the digital input port are TTL compatible with a maximum clock speed of 135MHz.
Sync and clock polarity is programmable.
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Input Capture
The Input Capture block is responsible for extracting valid data from the input data stream and
creating the required synchronization signals required by the data pipeline. This block also
provides stable timing when no stable input timing exists.
The selected input data stream is cropped using a programmable input capture window. Only
data within the programmable window is allowed through the data pipeline for subsequent
processing. Data that lies outside of the window is ignored.
Figure 8-11 Input Capture Window
Input cropping is required in a video system since video signals are normally over scanned.
For a flat panel TV, in order to over scan the image, a smaller portion of the input image needs
to be selected and then expanded to fill the entire screen.
Input data streams originating from CCIR656 sources are cropped with reference to the start
and end of active video flags encoded into the data stream. For all other inputs, the Input
Capture Window is referenced with respect to Horizontal and Vertical Sync.
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Image Processing
The following figure shows the various image processing blocks that operate on the captured
video data stream. Each block is individually selectable and can be removed from the
processing chain via a selectable bypass path. When a processing block is bypassed, it
automatically enters a low power mode to help reduce overall power consumption.
Figure 8-12 Imange Processing Block Diagram
Faroudja DCDi Edge Processing
Faroudja DCDi Edge processing is used to reduced/eliminate objectionable stair stepping that
occurs on interlaced diagonal lines. DCDi Edge processing is optimized for a memory
architecture that is unified with the memory used for scaling. This block can process 24-bit
RGB, 16-bit 4:2:2 YUV or 16-bit 4:2:2 YPrPb data streams.
Scaling Engine
The Scaling Engine accepts both 16-bit 4:2:2 YUV and 24-bit RGB inputs. It is capable of
scaling the input by a factor of 0.05 to 5.0. A flexible tap structure is used so that the number
of taps can be increased based on the number of pixels per line and whether the input is 4:2:2
YUV or 4:4:4 RGB. To reduce the amount of memory required for the vertical scaling process,
horizontal shrink is performed prior to vertical scaling and horizontal expansion happens after
vertical scaling. The maximum number of pixels per line supported by the vertical scalar is
1366.
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Display Output Interface
The Display Output Port provides data and control signals that permit the connection to a
variety of flat panel devices using a 24-bit TTL or LVDS interface. The output interface is
configurable for single or dual wide LVDS in 18 or 24-bit RGB pixels format. All display data
and timing signals are synchronous with the DCLK display clock. The integrated LVDS
transmitter is programmable to allow the data and control signals to be mapped into any
sequence depending on the specified receiver format. DC balanced operation is supported as
described in the Open LDI standard. Output timing is fully programmable via the host interface
register set enabling this device to be used as a display controller of a PIP processor for other
Genesis Microchip devices.
The following display synchronization modes are supported: Frame Sync Mode: The
display frame rate is synchronized to the input frame or field rate. This mode is used for
standard operation. Free Run Mode: No synchronization. This mode is used when there is
no valid input timing (i.e. to display OSD messages or a splash screen) or for testing purposes.
In free-run mode, the display timing is determined only by the values programmed into the
display window and timing registers.
Display Timing Programming
Horizontal values are programmed in single-pixel increments relative to the leading edge of
the horizontal sync signal. Vertical values are programmed in line increments relative to the
leading edge of the vertical sync signal.
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Figure 8-13 Display Windows and Timing
Data captured by the Input Capture Window and processed by the various image
manipulation blocks is output in the Display Active Window. This window is always in the
foreground and lies on top of all other output windows, except OSD overlay windows.
Typically the Display Active Window is set to the same size as the output of the Scaling
Engine. If the Display Active Window is set too small, then the bottom and right hand edges of
the image data are cropped. If the Display Active Window is set too large, then the extra
space to the left and bottom of the Display Active Window is forced to the Background
Window color.
Output Dithering The CLUT outputs a 10-bit value for each color channel. This value is
dithered down to either 8-bits for 24-bit per pixel panels, or 6-bits for 18-bit per pixel panels. In
this way it is possible to display 16.7 million colors on a LCD panel with 6-bit column drivers.
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The benefit of dithering is that the eye tends to average neighboring pixels and a smooth
image free of contours is perceived. Dithering works by spreading the quantization error over
neighboring pixels both spatially and temporally. Two dithering algorithms are available:
random or ordered dithering. Ordered dithering is recommended when driving a 6-bit panel.
All gray scales are available on the panel output whether using 8-bit panel (dithering from 10
to 8 bits per pixel) or using 6-bit panel (dithering from 10 down to 6 bits per pixel).
Dual Channel LVDS Transmitter
An integrated LVDS transmitter with programmable input to output configuration is provided to
enable drive of all known panels. The LVDS transmitter can support the following:
Single pixel mode 24-bit panel mapping to the LVDS channels
18-bit panel mapping to the LVDS channels
Programmable channel swapping (the clocks are fixed)
Programmable channel polarity swapping
Supports up to SXGA 75Hz output
On-Chip Microcontroller (OCM)
The on-chip microcontroller (OCM) is a 16-bit x86 100MHz processor capable of acting as
either the overall system controller or a slave controller, receiving commands from an external
controller.
The OCM executes firmware running from external ROM, as well as driver-level (or
Application Programming Interface – API) functions residing in internal ROM. A parallel port
with separate address and data busses is available for this purpose.
This port connects directly to standard, commercially available ROM or programmable FLASH
ROM devices. A serial FLASH ROM may be used with the serial peripheral interface (SPI)
and cache controller inside the Genesis device. Both firmware and OSD content must be
compiled into a HEX file and then loaded onto the external ROM.
The OSD content is generated using Genesis Workbench. Genesis Workbench is a GUI
based tool for defining OSD menus, navigation, and functionality.
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Figure 8-14 FLI8125 OCM Programming
The operation of HDMI Sil9011
The SiI 9011 provides one HDMI input port. The SiI 9011 video output goes to a video
processor while the audio output goes to an audio DAC.
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Figure 8-15 HDMI 9011 Block Diagram
TMDS Digital Core
The core performs 10-to-8-bit TMDS decoding on the audio and video data received from the
three TMDS differential data lines along with a TMDS differential clock. The TMDS core
supports link clock rates to 165MHz, including CE modes to 720p/1080i/1080p and PC modes
to XGA, SXGA and UXGA.
Active Port Detection
The PanelLink core detects an active TMDS clock and detects an actively toggling DE signal.
These states are accessible in register bits, useful for monitoring the status of the HDMI input
or for automatically powering down the receiver.
The +5V supply from the HDMI connector is used as a cable detect indicator. The SiI 9011
can monitor the presence of this +5V supply and, if and when necessary, provide a fast audio
mute without pops when it senses the HDMI cable pulled. The microcontroller can also poll
registers in the SiI9011 to check whether an HDMI cable is connected.
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Data Input and Conversion
Mode Control Logic
The mode control logic determines if the decrypted data is video, audio or auxiliary
information, and directs it to the appropriate logic block.
Video Data Conversion and Video Output
The SiI 9011 can output video in many different formats (see examples in Table 2). The
receiver can also process the video data before it is output, as shown in Figure 5. Each of the
processing blocks may be bypassed by setting the appropriate register bits. (See page 38 for
a more detailed path diagram.)
Figure 8-16 HDMI Video Processing Path
Color Range Scaling
The color range depends on the video format, according to the CEA-861B specification. In
some applications the 8-bit input range uses the entire span of 0x00 (0) to 0xFF (255) values.
In other applications the range is scaled narrower. The receiver cannot detect the incoming
video data range, and there is no required range specification in the HDMI AVI packet.
Therefore the receiver’s firmware will have to program the scaling depending on the detected
video format. Refer to the SiI 9011 Programmer’s Reference (SiI-PR-0006) for more details.
When the receiver outputs embedded syncs (SAV/EAV codes), it also limits the YCbCr output
values to 1 to 254.
Figure 8-17 Digital Video Output Formats
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Chapter 9 Waveforms
1. Ripple Voltage
(1) PDP_+5Vsc (CN1.1)
(2) PDP_+12V (CN1.7)
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(3) PDP_+5Vsb (CN3.4)
(4) FLI8125 (U10)
+3.3V_I/O_HUD
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+3.3V_ADC_HUD
+1.8V_ADC_HUD
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(5) FLI8532 (U13)
+3.3V_I/O
+1.8V_ADC
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+2.5V_DDR
+1.8V_CORE
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(6) NT5DS16M16CS-5T (U16, U17)
(7) Am29LV320DT90-ED (XU1)
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(8) LM2660 (-5V_N of the U29)
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2. Clock Timing
(1) NT5DS16M16CS-5T DDR clock (pin 45 of the U16 or U17)
(2) FLI8125
Crystal clock (pin 15 of the U10)
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Hudson output clock
(3) FLI8532
Crystal clock (pin B26 of the U13 or pin 1 of the C155) Cortze output clock
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(4) MSP4450G crystal clock (pin 55 of the U32)
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(5) SiI9011CLU crystal clock (pin 84 of the U35 and U42)
(6) IC SM5964C40J crystal clock (pin 20 of the U38)
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3. Horizontal and Vertical sync. Timing
(1) VGA input (1024x768x60Hz)
H-sync
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V-sync
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(2) SiI9011CLU (U35 and U42)
CLK
BHS-sync
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BVS-sync
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Chapter 10 PDP Trouble Shooting
A. SYSTEM OVERVIEW
Power supply board
Y driver board
X driver board
Main board
EMI filter
IR boar
d
Display board
Audio power
Audio Voltage
selectior
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B. PCB PARTS NAME/NUMBER AND FUNCTION DESCRIPTION
PAR T NAME PART NUMBER FUNCTION DESCRIPTION
POWER SUPPLY BOARD PROVIDE ALL THE POWER FOR TV SET
X DRIVER BOARD X ELECTRODE DRIVING BOARD
Y DRIVER BOARD Y ELECTRODE DRIVING BOARD
AUDIO POWER SELECTOR AUDIO POWER SUPPLY(+30V OR +24V)
MAIN BOARD 385000120150 CONNECTING TO TRANSFER DISPLY SIGNAL
TO PDP SET, AMPLIFIER THE AUDIO SIGNAL TO
THE SPEAKER
IR BOARD 385000120189 RECEIVE THE REMOTE CONTROLER AND DISPLAY
SYSTEM STATUS LED
DISPLAY BOARD 385000120156 KEYPAD FUNCTION FOR MANUAL OPERATE TV
C. BOARD PICTURE
MAIN BOARD
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DISPLAY BOARD
IR BOARD
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PDP DISPLAY NOTHING
1. Main board block diagram
SV3_CTZ
ANLOG DDC
KEY PAD
CN5
3 ATXD_HUD
U27 MAX4550
AUDIO SW
4/2 I/O
U38
SM5964-C40J
Y1/C1
SV3_HUD
U11 SST25VF040
FLASH 512K HUD
VGA_SCL / VGA_SDA
1
ATXD
U33 PT2308
AUDIO DRIVER
U40 24LC128
EEPROM(8051)
CVBS1
SV2_CTZ
COMP2_Audio_R/L
ARXD
U34 PT2308
AUDIO DRIVER
CVBS2
W5
ARXD_HUD
SV2_HUD
U11 24LC32
EEPROM HUD
U26 MAX232A
VGA_AUDIO_L/R
CH1_R/L
ATXD_HUD
SV4_CTZ
UC_SCL/UC_SDA
U45 74HCT14
Inverting Schmitt Trgger
W13
U36 CS3443
HDMI1 LR ADC
W12
CH2_R/L
U42 Sil 9011
HDMI RS
W14
HDMI2_AUDIO_L/R
CH3_R/L
W6
U35 Sil 9011
HDMI RS
Display
W11
HDMI1_AUDIO_L/R
CH4_R/L
W8
U20 4052
4/1 x2 I/O
U46 IDTQS3253
HDMI1 AUDIO SW
W7
SCL-33V / SDA-33V
U24 M61323FP
VEDIO SW
J10
U32 P4450G
AUDIO
PROCESS
C1_HUD
W1
U42 IDTQS3253
HDMI1 AUDIO SW
Component 2
ARXD_HUD
SV4_HUD
J9
AudioAV1_R/L
C1_CTZ
ATXD
FL8125_HUD
1
51_RXD/51_TXD
W13
AudioAV1_R/L
U37 24LC02
EEPROM HDMI1
U21 24LC02
EEPROM VGA
風扇控制
B1_CTZ
U22 M61323FP
VEDIO SW
Lineout_R/L
ATXD_HUD
Component 1
3
W10
F75373S
U25
Y Pr Pb
ARXD
FL8532_CTZ
HY5DU56822CT-D4
U16 DDR RAM HUD
AudioAV2_R/L
U23 M61323FP
VEDIO SW
NC7SB3157
U18 BUS SW
ATSC Y
Pr Pb
B1_HUD
VGA_SCL / VGA_SDA
HLIN/HRIN
HY5DU56822CT-D4
U17 DDR RAM CTZ
BDATA[0:23]
COMP1_Audio_R/L
U40 24LC02
EEPROM HDMI2
Y Pr Pb
A1_CTZ
CN17
XU1 A29LV320D
MEMERY_CTZVGA input
U37 CS3443
HDMI2 LR ADC
2
ADATA[0:23]
AudioAV1_R/L
U28 MAX4550
AUDIO SW
4/2 I/O
VS / HS
CN16
A1_HUD
TDA8946AJ
AUDIO_AMP
2
ARXD_HUD
Y2/C2
R G B
CONFIDENTIAL – DO NOT COPY
Page10-5
File No. SG-0174
1
PDP DISPLAY NOTHING(Analog HD1/AC on/off default)
Powe r LED is ligh ting?
Start
No
Yes
Check AC power cord
No
Press Meun or Info.
Is there any OSD’s logo
Powe r LED is ligh ting?
No
Check U3.4Î3.3V
No
D10,D11 LED is lighting?
Check internal cable?
1.LVDS cable.
Panel power
fail
U3 fail
Check U8Î1.8V
Check U9Î2.5V
No
U8 fail
No
U9 fail
If power_off Îhigh
U2,U5Î ON
Check +3.3V_SW
,+5V_SW,+12V_SW
(pin 5,6 and pin 7,8)
No
U2,U5 fail
Check Fuse open?
(F2,F3,F4)
Fuse fail
Yes
No
Yes
U13 fail
No
Yes
Check input source
Check internal cable?
1.CN1’s cabl e
2.CN3’s cabl e
No
Check main board CN3 pin 4Î studyby +5V
Check CN3 pin 3Î RLY_ON(high)
Check CN3 pin 2Î VS_ON(high)
Yse
Check CN1Îpin 1,2,3 = +5V
pin 7,8 = +12V
No
No
Yes
No
Powe r LED is ligh ting?
No
Check W1 pin 27 is high?
(Display_ON)
No
Remove R87.
Check U13 pin AD14.
Is AD14 high?
U13 fail
No
Yes
Yes
Yes
Check component 1
(Y signal) ÎC252
Is there sync?
No
Is picture on screen?
Yes
Block 1
No
Trace componect 1 from
Input To U13 circuit
Check R190,R191
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U13 fail
PDP DISPLAY NOTHING(Analog HD1 without Y signal)
CONFIDENTIAL – DO NOT COPY
Page10-6
File No. SG-0174
2
Check component 1
(Pb signal) ÎC259
Is there sync?
No
Is picture on screen?
No
Trace componect 1 from
Input To U13 circuit
Check R196,R198
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U13 fail
BLOCK 1
PDP DISPLAY NOTHING(Analog HD1 without Pb signal)
Check component 1
(Pr signal) ÎC264
Is there sync?
No
Is picture on screen?
No
Trace componect 1 from
Input To U13 circuit
Check R204,R201
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U13 fail
BLOCK 1
PDP DISPLAY NOTHING(Analog HD1 without Pr signal)
Check component 1
(Y signal) =>C255
Is there sync?
No
Is picture on screen?
No
Trace componect 1 from
Input To U10 circuit
Check R193,R191
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U10 fail
BLOCK 1
PDP DISPLAY NOTHING(Analog HD1 on PIP mode without Y signal)
CONFIDENTIAL – DO NOT COPY
Page10-7
File No. SG-0174
3
Check component 1
(Pr signal) ÎC255
Is there sync?
No
Is picture on screen?
No
Trace componect 1 from
Input To U10 circuit
Check R205,R204
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U10 fail
BLOCK 1
PDP DISPLAY NOTHING(Analog HD1 on PIP mode without Pr signal)
Check component 1
(Pb signal) ÎC255
Is there sync?
No
Is picture on screen?
No
Trace componect 1 from
Input To U10 circuit
Check R200,R198
Use GProbe connect
from main to PC.
Does scaler det ect the signal?
Yes
No
U10 fail
BLOCK 1
PDP DISPLAY NOTHING(Analog HD1 on PIP mode without Pb signal)
Check component 2
(Y signal) ÎC258,R195
Is there sync?
No
Is picture on screen?
No
Check U23
outnputÎpin 31
InputÎ pin 13
Input clamp voltageÎpin 3(+5V)
Output clamp voltageÎpin 32(+5V)
VCC3Îpin 22,23(+5V)
Input_switch_selectÎhigh(+5V)
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U13 fail
PDP DISPLAY NOTHING(Analog HD2 without Y signal)
BLOCK 1
U23 fail
No
Check before U23’s circuit
1.C263,C265(AC coupled)
2.R209
3.R216(75ohm)
Yes
No
Input source fail
CONFIDENTIAL – DO NOT COPY
Page10-8
File No. SG-0174
4
Check component 2
(Pb signal) ÎC260,R197
Is there sync?
No
Is no blue color on screen?
No
Check U23
outnputÎpin 28
Inpu tÎ pin 15
Input clamp voltageÎpin 5(+5V)
Output clamp voltageÎpin 29(+5V)
VCC3Îpin 22,23(+5V)
Input_switch_selectÎhigh(+5V)
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U13 fail
PDP DISPLAY NOTHING(Analog HD2 without Pb signal)
BLOCK 1
U23 fail
No
Check before U23’s circuit
1.C268,C269(AC coupled)
2.R211
3.R217(75ohm)
Yes
No
Input source fail
Check component 2
(Pr sign al) ÎC254,R192
Is there signal?
No
Is no red color on screen?
No
Check U23
outnputÎpin 34
Inpu tÎ pin 11
Input clamp voltageÎpin 1(+5V)
Output clamp voltageÎpin 35(+5V)
VCC3Îpin 22,23(+5V)
Input_switch_selectÎhigh(+5V)
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U13 fail
PDP DISPLAY NOTHING(Analog HD2 without Pr signal)
BLOCK 1
U23 fail
No
Check before U23’s circuit
1.C256,C261(AC coupled)
2.R215
3.R218(75ohm)
Yes
No
Input source fail
Check component 2
(Y signa l) ÎC287,R212
Is there sync?
No
Is picture on screen?
No
Check U24
outnputÎpin 31
Inpu tÎ pin 13
Input clamp voltageÎpin 3(+5V)
Output clamp voltageÎpin 32(+ 5V)
VCC3Îpin 22,23(+5V)
Input_switch_selectÎhigh(+5V)
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U10 fail
PDP DISPLAY NOTHING(Analog HD2 on PIP mode without Y signal)
BLOCK 1
U24 fail
No
Check before U24’s circuit
1.C282,C285(AC coupled)
2.R209
3.R216(75ohm)
Yes
No
Input source fail
CONFIDENTIAL – DO NOT COPY
Page10-9
File No. SG-0174
5
Check component 2
(Pb signal) ÎC288,R213
Is there sync?
No
Is no blue color on screen?
No
Check U24
outnputÎpin 28
InputÎ pin 15
Input clamp voltageÎpin 5(+5V )
Output clamp voltageÎpin 29(+5V)
VCC3Îpin 22,23(+5V)
Input_switch_selectÎhigh(+5V)
Use GProbe connect
from main to PC.
Does scaler detect the sign al?
Yes
No
U10 fail
PDP DISPLAY NOTHING(Analog HD2 on PIP mode without Pb signal)
BLOCK 1
U24 fail
No
Check before U24’s circuit
1.C289,C290(AC coupled)
2.R211
3.R217(75ohm)
Yes
No
Input source fail
Check component 2
(Pr signal) ÎC284,R210
Is there signal?
No
Is no red color on screen?
No
Check U24
outnputÎpin 34
InputÎ pin 11
Input clamp voltageÎpin 1(+5V )
Output clamp voltageÎpin 35(+5V)
VCC3Îpin 22,23(+5V)
Input_switch_selectÎhigh(+5V)
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Yes
No
U10 fail
PDP DISPLAY NOTHING(Analog HD2 on PIP mode without Pr signal)
BLOCK 1
U24 fail
No
Check before U24’s circuit
1.C276,C281(AC coupled)
2.R215
3.R218(75ohm)
Yes
No
Input source fail
Check U45
H sync output Î U45 pin4,R181
V sync output Î U45 pin8,R184
Is there signal?
No
Is picture on screen?
No
Check U45
H sync input Î U45 pin1,R185
V sync input Î U45 pin5,R187
Check U22’s signal output
R signal ÎC238,R180,R169,U22.34
G signal ÎC237,R177,R171,U22.31
B signal ÎC235,R174,R176,U22.28
Yes
No
Check U22 input signal
R Î pin 2, C239;C241(AC coupled),R186,R172(75ohm)
G Î Pin 4,C234;C236(AC coupled),R166,R175(75ohm)
B Î Pi n 6,C221;C224(AC coupled ),R164,R173(75ohm)
PDP DISPLAY NOTHING(RGB)
BLOCK 1
Check U45
pin 14Î +3.3V
Yes
Check input source
No
U45 fail
Yes
Check U22
Input clamp voltageÎpin 1(+5V_V1)
Output clamp voltageÎpin 35(+5V)
VCC3Îpin 22,23(+5V)
Input_switch_selectÎlow (0V)
Yes
U22 fail
No
CONFIDENTIAL – DO NOT COPY
Page10-10
File No. SG-0174
6
Check U45
H sync output Î U45 pin4,R181
V sync output Î U45 pin8,R184
Is there signal?
No
Is picture on screen?
No
Check U45
H sync input Î U45 pin1,R185
V sync input Î U45 pin5,R187
Check U22’s signal output
R signal ÎC233,R180,R169,U22.34
G signal ÎC232,R177,R171,U22.31
B signal ÎC231,R174,R176,U22.28
Yes
No
Check U22 input signal
R Î pin 2, C239;C241(AC coupled),R186,R172(75ohm)
G Î Pin 4,C234;C236(AC coupled),R166,R175(75ohm)
B Î Pin 6,C221;C224(AC coupled),R164,R173(75ohm)
PDP DISPLAY NOTHING(RGB on PIP mode without screen)
BLOCK 1
Check U45
pin 14Î +3.3V
Yes
Check input source
No
U45 fail
Yes
Check U22
Input clamp voltageÎpin 1(+5V_V1)
Output clamp voltageÎpin 35(+5V)
VCC3Îpin 22,23(+5V)
Input_switch_selectÎlow (0V)
Yes
U22 fail
No
CONFIDENTIAL – DO NOT COPY
Page10-11
File No. SG-0174
7
Check C308,R273,R274
Is there signal?
No
Is picture on screen?
No
PDP DISPLAY NOTHING(Composite 1 on PIP without screen)
BLOCK 1
Check Q28’s emitter.
Is there signal?
No
Check Q28’s Base.
Is there signal?
Check collector
voltage(+5V).
No
Q28 fail
Check:
1.C309 (signal AC coupled)
2.R276
3.R279(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Q10 fail
No
Check input source
No
Check C310,R275,R274
Is there signal?
No
Is picture on screen?
No
PDP DISPLAY NOTHING(Composite 1 without screen)
BLOCK 1
Check Q28’s emitter.
Is there signal?
No
Check Q28’s Base.
Is there signal?
Check collector
voltage(+5V).
No
Q28 fail
Check:
1.C309 (signal AC coupled)
2.R276
3.R279(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Q13 fail
No
Check input source
No
CONFIDENTIAL – DO NOT COPY
Page10-12
File No. SG-0174
8
Check C316,R286,R285
Is there signal?
No
Is picture on screen?
No
PDP DISPLAY NOTHING(Composite 2 without screen)
BLOCK 1
Check Q29’s emitter.
Is there signal?
No
Check Q29’s Base.
Is there signal?
Check collector
voltage(+ 5V).
No
Q29 fail
Check:
1.C315 (signal AC coupled)
2.R282
3.R283(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the sign al?
Q13 fail
No
Check input source
No
PDP DISPLAY NOTHING(Composite 2 on PIP without screen)
Check C316,R284,R285
Is there signal?
No
Is picture on screen?
No
BLOCK 1
Check Q29’s emitter.
Is there signal?
No
Check Q29’s Base.
Is there signal?
Check collector
voltage(+ 5V).
No
Q29 fail
Check:
1.C315 (signal AC coupled)
2.R282
3.R283(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the sign al?
Q10 fail
No
Check input source
No
CONFIDENTIAL – DO NOT COPY
Page10-13
File No. SG-0174
9
PDP DISPLAY NOTHING(S-VIDEO 1 without screen)
Check C320,R293,R292
Is there signal?
No
Is picture on screen?
No
BLOCK 1
Check Q30’s emitter.
Is there signal?
No
Check Q30’s Base.
Is there signal?
Check coll ector
voltage(+5V).
No
Q30 fail
Check:
1.C319 (signal AC coupled)
2.R297
3.R299(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Q13 fail
No
Check input source
No
Is picture color ok?
Check C328,R308,R307
Is there signal?
No
No
Check Q31’s emitter.
Is there signal?
No
Check Q31’s Base.
Is there signal?
Check coll ector
voltage(+5V).
No
Q31 fail
Check:
1.C327 (signal AC coupled)
2.R296
3.R298(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Q13 fail
No
Check input source
No
CONFIDENTIAL – DO NOT COPY
Page10-14
File No. SG-0174
10
PDP DISPLAY NOTHING(S-VIDEO 1 on PIP mode without screen)
Check C318,R291,R292
Is there signal?
No
Is picture on screen?
No
BLOCK 1
Check Q30’s emitter.
Is there signal?
No
Check Q30’s Base.
Is there signal?
Check coll ector
voltage(+5V).
No
Q30 fail
Check:
1.C319 (signal AC coupled)
2.R297
3.R299(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Q10 fail
No
Check input source
No
Is picture color ok?
Check C326,R306,R307
Is there signal?
No
No
Check Q31’s emitter.
Is there signal?
No
Check Q31’s Base.
Is there signal?
Check coll ector
voltage(+5V).
No
Q31 fail
Check:
1.C327 (signal AC coupled)
2.R296
3.R298(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
Q10 fail
No
Check input source
No
CONFIDENTIAL – DO NOT COPY
Page10-15
File No. SG-0174
11
PDP DISPLAY NOTHING(S-VIDEO 2 without screen)
Check C332,R316,R320
Is there signal?
No
Is picture on screen?
No
BLOCK 1
Check Q33’s emitter.
Is there signal?
No
Check Q33’s Base.
Is there signal?
Check coll ector
voltage(+5V).
No
Q33 fail
Check:
1.C335 (signal AC coupled)
2.R300
3.R302(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
U13 fail
No
Check input source
No
Is picture color ok?
Check C336,R319,R318
Is there signal?
No
No
Check Q32’s emitter.
Is there signal?
No
Check Q32’s Base.
Is there signal?
Check coll ector
voltage(+5V).
No
Q32 fail
Check:
1.C333 (signal AC coupled)
2.R301
3.R303(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
U13 fail
No
Check input source
No
CONFIDENTIAL – DO NOT COPY
Page10-16
File No. SG-0174
12
PDP DISPLAY NOTHING(S-VIDEO 2 on PIP mode without screen)
Check C331,R313,R320
Is there signal?
No
Is picture on screen?
No
BLOCK 1
Check Q33’s emitter.
Is there signal?
No
Check Q33’s Base.
Is there signal?
Check coll ector
voltage(+5V).
No
Q33 fail
Check:
1.C335 (signal AC coupled)
2.R300
3.R302(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
U10 fail
No
Check input source
No
Is picture color ok?
Check C334,R317,R318
Is there signal?
No
No
Check Q32’s emitter.
Is there signal?
No
Check Q32’s Base.
Is there signal?
Check coll ector
voltage(+5V).
No
Q32 fail
Check:
1.C333 (signal AC coupled)
2.R301
3.R303(75ohm impedance)
Is there signal?
Yes
Yes
Use GProbe connect
from main to PC.
Does scaler detect the signal?
U10 fail
No
Check input source
No
CONFIDENTIAL – DO NOT COPY
Page10-17
File No. SG-0174
14
PDP DISPLAY NOTHING(Digital 2 U35 with PORT B without screen)
Is picture on screen?
BLOCK 1
Is picture color ok?
Check U35 pin 90 Î high
V syncÎR419
H syncÎR420
clockÎR421
No
Check +3.3V_SWÎ
FB19,FB20,FB21,FB22
U41Î+1.8V_HDMI1
Check Q44
sourceÎhigh(3.3V)
Check crystalÎ
Y2=28.322MHz
Yes
No
Check input source?
Yes
Yes
Check U35 I2C busÎ
CSDAÎpin 39
CSCLÎpin 40
No
Check Q44
GataÎhigh(5V)
No
Q44 fail
Yes
Check U35 all power U35 fail
Yes
I2C addr.ÎR424
No
Check Block 2
No
No
Check U35’s RGB data bus
BÎRP10,RP11
GÎRP12,RP14
RÎRP16,RP17
Check U37 I2C bus
SCLÎPin 6
SDAÎpin 5
Yes
No
Check U37 power
5VÎPin 8
No
Check D66 and D65
Are there 5V output?
No
D66 fail
or
D65 fail
Is picture on screen?
No
CONFIDENTIAL – DO NOT COPY
Page10-18
File No. SG-0174
15
Block 2
HDMI’s chip
communicate with
SM5964,is ok?
No
Check U38’s powerÎ
Pin 44,35
Check Y3Î
11.0592MHz
Yes
No
Check U38’s UART
TxDÎpin 13
RxDÎpin 11
Check U20Î
pin 16Î+5V
Pin 10Îoutput select=high
No
U20 fail
start
Check U2’s +5V_SW
Îpin 7,8
No
Yes
Check R143,R144
Yes
No
U13 fail
CONFIDENTIAL – DO NOT COPY
Page10-19
File No. SG-0174
TROUBLE OF DDC READING
Analog DDC OK?
Start
No
Yes
No
Digital HDMI1 DDC OK?
Support DDC2B
1.Analog cable ok?
2.Voltage of +5V_BUF ok?
3.Check U21
4.Is compliant protocol?
Support DDC2B
1.HDMI cable ok?
2.Voltage of VCC5_E2P_2ok?
3.Check U44
4.Is compliant protocol?
Yes
No
Digital HDMI2 DDC OK?
Support DDC2B
1.HDMI cable ok?
2.Voltage of VCC5_E2P_1 ok?
3.Check U37
4.Is compliant protocol?
End
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