Atec AV32OPD Manuale utente
INDEX
1. Safety Precautions.
2. Product Specification.
-General Specification
-RGB/DVI Spec
-DTV Mode Spec
-CHASSIS / FUNTION General Spec.
-Engineering Spec.
3. Service Mode Adjustment.
4. Firmware upgrade
5. Adjustment Standard
6. Remote Controller(PAL/SECAM)
7. Trouble Shooting
- POWER Trouble
- SCREEN Trouble
- SOUND Trouble
8. Block Diagram
9. Circuit Diagram
- MAIN BOARD
- POWER BOARD (SMPS)
10. BOM (Parts List)
- MAIN BOARD
- POWER BOARD (SMPS)
11. Assembly Diagram
1. Safety precautions
* General details
1) When providing service, pay attention to the basic wiring and if you see a short circuit, you must replace
all parts overheated or damaged by the short circuit.
2) After the service, check if the all elements for protection with insulation layer, insulation paper and shield
R-C composite element are well assembled.
3) When not watching the TV for a long period of time, unplug the power cord.
4) Because the high voltage goes through the power (SMPS) when the TV is operating, it is dangerous from
electric shock to operate the TV with the back cover open. Repairing must only be done by a repair
technician who has adequate knowledge about the high voltage.
5) After completing the service, the repair technician must inspect the following electric current leakage to
protect the user from electric shock.
6) Always check if all the internal protection devices are installed. If there is a protection plate, directly
install it.
7) After completely assembling the set, plug the AC line cord to the power outlet. Set the power switch to on
and then turn it off. Measure the current between the earth (GND) and antenna, metal parts, projected
metal parts such as screw heads. The measured current should not exceed 3.5mA.
8) Never change the design or add to the design of the device or electric circuit for this set. If you add to
the design, it can cause danger to the safety. Also if you change the design or add to the design, the
manufacturer’s warranty would be ineffective.
9) If the parts, material or the wiring seem to be overheated or damaged, immediately replace the parts in
accordance with the original specification. Always understand the root cause of the overheating or
damage and correct the danger factors if possible.
10) Some electric circuit parts and device parts have special safety related characteristics that cannot be
judged with the eye. If you replace the parts with a different part with higher voltage, wattage etc, it will
lose the safety characteristics and protection function. Therefore you must use the same part as the one
installed as much as possible.
11) After the repair, always check if the screw, part and wiring are correctly installed. Check if the adjacent
area of the repaired part is damaged.
12) There are some semiconductor devices that can be easily damaged by electricity. When handling these
parts, use the static electricity detection device (ESD) to remove the electrode in the human body.
* Electric current leakage test (Cold Check)
1) Unplug the AC power and connect the ends of the plug with a wire.
2) Turn on the power switch.
3) Connect one end of the insulation tester on one of the leads and connect the other lead to an exposed
metallic part such as antenna, screw, variable adjustor axis etc. for measurement. The resistance value of
the exposed metal part that is connected to the chassis or not connected to the chassis must be infinite
(∞).
* Electric current leakage test (Hot Check)
1) Directly plug the power to the power outlet.
(At this time, do not use the insulation transformer during the test.)
2) Connect one side of the 1.0KΩ, 10W resistance to the exposed metal part of the TV and earth the other
side(location where it is easy to earth such as water pipe etc.) (Refer to the fig.)
3) Measure the voltage of both ends by using the AC voltage meter (1000Ω volt to higher sensitivity).
4) Measure the voltage of each exposed part of the TV.
5) Switch and plug the power plug (opposite electrode) and repeat the measurement.
6) The voltage should not exceed 0.75V in any location and the current leakage must not exceed 0.75mA.
* service precautions
1) When inserting the part or circuit board, you must keep the lead wire fixed to the end before soldering.
2) When inserting the high power resistance, leave about 10mm clearance from the board (metal oxidation
coated resistance or metal coated resistance).
3) Parts with high voltage or high temperature must be kept far from the lead wire.
4) For this chassis, use the cold chassis or insulation transformer for the safety. When repairing the power part,
always use the insulation transformer.
5) When operating the TV, do not connect or remove the wire.
6) Marked parts are important parts to maintain the safety of the part. Therefore, when exchanging the part,
always use the designated part.
S
2. Product Specification.
* Scope
This specification applies to all LCD TV models with VCB4430 chassis.
* Operating condition
1) Surrounding temperature: 25℃ ± 2℃
2) Relative humidity: 65% ± 10%
3) Power voltage (AC 110 – 240V, 50/60Hz)
4) For measurement, pre-operate the TV for more than 15 minutes.
◆ General Specification.
- AV320PD
32”
PC Analog RGB 15 pin D-Sub Input
SCART(half)
Composite Input * 2
S-Video Input * 1
Component Input * 1
Video
HDMI Input
Composite RCA L/R Input * 2
SCART(half)
Component RCA L/R Input *1
Headphone Output * 1
In/Out
Audio
PC/DVI Audio Input * 1
Antenna 75Ω Coaxial cable
Color System PAL/SECAM
Sound System B, G, D, K, I, L(for EU)
Stereo Type Nicam stereo, Nicam mono, mono, A2
RF Signal
Text TTX 256 page
Power Consumption 160 Watts
Power Save Mode Less than 5 Watts
Speaker 10 Watts *2
Plug & Play DDC 1/2 B
Screen Control 16 Colour On Screen Display Menu, Bit Map
Remote Controller Yes
Net 20.1Kg Weight
Gross 24.6Kg
Others
Dimension 932(W) * 238(D) *567(H)cm : Speaker(stand include)
◆ RGB/DVI Mode Spec.
Resolution H
Frequency(KHz)
V
Frequency(Hz)
Pixel
Frequency(MHz)
Comment
640 * 350 31.469 70.087 25.175 IBM
640 * 480 31.469 59.94 25.175 IBM
640 * 480 35.000 66.667 30.24 MAC
640 * 480 37.861 72.809 29.765 VESA
640 * 480 37.500 75 31.5 VESA
720 * 400 31.469 70.087 28.332 IBM
800 * 600 35.156 56.25 36.0 VESA
800 * 600 37.879 60.317 40.0 VESA
800 * 600 48.077 72.188 50.0 VESA
800 * 600 46.875 75.0 49.5 VESA
832 * 624 49.726 74.551 57.284 MAC
1024 * 768 48.780 60.001 64.11 MAC
1024 * 768 48.363 60.004 65.0 VESA
1024 * 768 56.476 70.069 75.0 VESA
1024 * 768 60.241 74.927 81.724 MAC
1024 * 768 60.030 75.029 78.75 VESA
1152 * 864 67.500 75.0 104.993 VESA
1152 * 870 68.681 75.062 100.0 MAC
1280 * 768 47.700 60.0 80.136
1360 * 768 47.700 60.0 80.136
◆ DTV Mode Spec
Resolution H
Frequency(KHz)
V
Frequency(Hz)
Pixel
Frequency(MHz) Comment
720 * 480 15.735 59.94 13.500 SDTV,DVD 480i
720 * 576 15.735 50.0 13.595 SDTV,DVD 576i
720 * 480 31.469 59.94 25.175 SDTV, 480p
720 * 576 31.250 50.0 26.566 SDTV, 576p
1280 * 720 44.964 59.94 74.176 HDTV, 720p
1280 * 720 37.500 50.0 60.466 HDTV, 720p
1920 * 1080 33.750 60.0 74.25 HDTV, 1080i
1920 * 1080 28.125 50.0 70.723 HDTV, 1080i
◆ SHASSIS / FUNTION General Spec.
NO ITEM DESCRIPTION REMARK
1 MODEL NAME VCB4430
Marker LG Philips LCD 2 TARGET PANEL
Type LCD LC260W02 LC320W02
Type D-SUB 15p *1, HDMI * 1 3 RGB/HDMI
Frequency H:31∼80KHz, V:56∼75Hz
Type RCA Jack (Green, Blue, Red)*1
480i: 59.94/60Hz, 480p: 59.94/60Hz
765i:50Hz, 765p: 50Hz
4 COMPONENT
Mode
720p: 59.94/60Hz, 1080i: 50/59.94/60Hz
SD and HD
CVBS: RCA Jack(yellow)*1, VCB4430
Half SCART *1 VCB4430
Type
SVHS: Mini-Din 4P *1. Auto Select
5 VIDEO INPUT
System PAL, SECAM
6 AV OUTPUT Selected TV, Video and Audio Out through SCART EU
7 AUDIO INPUT 3.5Ф Phone Jack*2 for PC
8 AUDIO OUTPUT Connector for Internal *1
9 TUNER Din Connector * 1 (inter Bridge for sub tuner)
LOCAL MENU, SELECT(SOURCE), DOWN, UP, LEFT, RIGHT, POWER, LED 10 CONT
ROL REMOTE Infrared- Rays NEC Format
Dynamic/Standard/Mild/Game/;User PSM
User Brightness, Contrast, Color, Sharpness
CSM CSM/ Brightness/ Contrast
CSM Normal/Warm/User
PICTURE
User Red/Green/Blue
Effect Flat/Music/Movie/Speech/User
User Bass, Treble
Surround On/Off, Normal, Spatial
AVL On/Off
AUDIO
Balance L(-10)----0---- R(10)
PIP,
POP
Source, Swap, PIP size,
PIP position
PIP/POP/P
BP
On/Off ON
PBP Source, Swap
Language English/ Deutsch/Francois/Italiano/ Espanol EU
Language China, English HK
Transparency 50(1 ∼ 100)
Auto/16:9/14:9/4:3 AV/TV Aspect
4:3/16:9 PC
Factory Reset On/Off
11 OSD
GUI
Setup
Time Clock/Off Time/On Time/Audio off
PIP/PBP Mode Supporting
SUB
MAIN TV AV1 AV2 COMPONENT RGB HDMI
TV ⅹ ⅹ ⅹ ○ ○ ○
AV1 ⅹ ⅹ ○ ○ ○
AV2 ⅹ ⅹ ○ ○ ○
COMPONEN ○ ○ ○ ⅹ ⅹ
T
RGB ○ ○ ○ ⅹ ⅹ
HDMI ○ ○ ○ ⅹ ⅹ
◆ Engineering Specification
N
O
Item ription Remark Desc
Min Typ Max
For Audio
V(Voltage)
11.4 12 12.6
For Stand-by 4.8 5 5.2 V
For Logic 5 5.4.8 2 V
1
POWER
SUPPLY
33
For Tuner 32.5 33 .5 V
DPMS Sync(V/H) VIDEO Power(V/A) state LED
Stand By, Sleep & Suspend Mode n/o ff Off/on & o ff O ≤ 3W Amber
2
POWER OFF - - ≤ 3w off
Typical 10Wrms + 10Wrms Volume: Adjust
3 Audio
Max s + 12Wrms olume: Max
POWER
12Wrm V
Response Frequency KHz10% 100Hz∼10
T.H.D 10%
Input 0.7Vrms
4 AMP
S/N 40dB
Type External
5 Speaker
Impedance 8Ω
System CAM PAL/SE
Tuning er System Frequency Synthesiz
1)VHF
Low: 46.25 ∼127.25 Hz M
High: 133.25 ∼ 361.25 MHz
2)UHF
Channel
Hz
367.25 ∼ 863.25 M
System PAL/SECAM
Tuning esizer System Frequency Synth
Channel 1)AIR
55.25 ∼ 801.25 MHz
2)CATV
6 TV System
5
73.25 ∼ 799.2 MHz
Video Level 0.7±0.15 V p-p 75ΩTermination
Sync Level 0.268±0.075 nation V p-p 75ΩTermi
Color Level 72 0.214±0.0 V p-p 75ΩTermination
7 AV
Audio Level put
0.7±0.1 V rms PC In
0.5±0.05 s TSC V rm N
0.4±0.05 V rms PAL
Video Cross-Talk 43 dB
3. S
u pres MENU + MUTE + I/II Button on remote controller.
SERVICE MENU VERSION
ervice mode Adjustment
Move to Factory Men sing
V1.0 Remarks
BLE MODE Do not change the value which is currently set.
BLE GAIN Do not change the value which is currently set.
BLE
BLE TILT Do not change the value which is currently set.
LTI CORING Do not change the value which is currently set. FAC LTI
LTI GAIN Do not change the value which is currently set.
CTI CORING Do not change the value which is currently set. FAC CTI
CTI GAIN Do not change the value which is currently set.
PEAK POS Do not change the value which is currently set.
PEAK NEG Do not change the value which is currently set.
FAC PEAK
ORING
PEAK C Do not change the value which is currently set.
BRI Do not change the value which is currently set.
CONT Do not change the value which is currently set.
VCTI
T
CB SA Do not change the value which is currently set.
CR SAT Do not change the value which is currently set.
TINT Do not change the value which is currently set.
R GAIN Do not change the value which is currently set.
G GAIN Do not change the value which is currently set.
SCART RGB
GAIN
B Do not change the value which is currently set.
6C R Do not change the value which is currently set.
6C G Do not change the value which is currently set.
6C B Do not change the value which is currently set.
6C M Do not change the value which is currently set.
6C Y Do not change the value which is currently set.
6C F Do not change the value which is currently set.
MSTAR
UM
SPECTR Do not change the value which is currently set.
R GAIN Do not change the value which is currently set.
G GAIN Do not change the value which is currently set.
B GAIN Do not change the value which is currently set.
R OFFSET Do not change the value which is currently set.
ADJUST
G OFFSET Do not change the value which is currently set.
Altri manuali per AV32OPD
1
Indice
Altri manuali Atec TV
