Text preview for : LT22A13WX .pdf part of Samsung LT22A13W TFT-LCD TV/MONITOR Chassis PD22JO Model LT22A13W Service Manual



Back to : LT22A13WX .rar | Home

CONFIDENTIAL
TFT-LCD TV/MONITOR
Chassis Model
PD22JO LT22A13W




SERVICE Manual

TFT-LCD TV/MONITOR CONTENTS
1. Precautions

2. Product Specifications

3. Disassembly & Reassembly

4. Alignment & Adjustments

5. Troubleshooting

6. Exploded View & Parts List

7. Electrical Parts List

8. Block Diagram

9. Wiring Diagram

10. Schematic Diagrams

11. Panel Description
CONFIDENTIAL
1 Precautions
Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as
electrical shock.

1-1 Safety Precautions

1-1-1 Warnings
1. For continued safety, do not attempt to modify the
(READING SHOULD
circuit board. NOT BE ABOVE 0.5mA)


2. Disconnect the AC power and DC Power Jack
before servicing. DEVICE
LEAKAGE
CURRENT
UNDER TESTER
1-1-2 Servicing the LCD Monitor TEST
TEST ALL
EXPOSED METAL
1. When servicing the LCD TV disconnect the AC line SURFACES


cord from the AC outlet.
2-WIRE CORD
2. It is essential that service technicians have an
accurate voltage meter available at all times. Check
the calibration of this meter periodically. ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED) EARTH
1-1-3 Fire and Shock Hazard GROUND



Before returning the monitor to the user, perform the Figure 1-1. Leakage Current Test Circuit
following safety checks:
1. Inspect each lead dress to make certain that the 4. With the unit completely reassembled, plug the AC
leads are not pinched or that hardware is not line cord directly into a 120V AC outlet. With the
lodged between the chassis and other metal parts in unit's AC switch first in the ON position and then
the monitor. OFF, measure the current between a known earth
2. Inspect all protective devices such as nonmetallic ground (metal water pipe, conduit, etc.) and all
control knobs, insulating materials, cabinet backs, exposed metal parts, including: metal cabinets,
adjustment and compartment covers or shields, screwheads and control shafts. The current
isolation resistor-capacitor networks, mechanical measured should not exceed 0.5 milliamp. Reverse
insulators, etc. the power-plug prongs in the AC outlet and repeat
3. Leakage Current Hot Check (Figure 1-1): the test.
WARNING: Do not use an isolation transformer during
this test. 1-1-4 Product Safety Notices
Use a leakage current tester or a metering system
Some electrical and mechanical parts have special
that complies with American National Standards
safety-related characteristics which are often not
Institute (ANSI C101.1, Leakage Current for
evident from visual inspection. The protection they give
Appliances), and Underwriters Laboratories (UL may not be obtained by replacing them with
Publication UL1410, 59.7). components rated for higher voltage, wattage, etc. Parts
that have special safety characteristics are identified by
! on schematics and parts lists. A substitute
replacement that does not have the same safety
characteristics as the recommended replacement part
might create shock, fire and/or other hazards. Product
safety is under review continuously and new
instructions are issued whenever appropriate.




LT22A13W 1-1
1 Precautions
CONFIDENTIAL
1-2 Servicing Precautions
WARNING: An electrolytic capacitor installed with the wrong polarity might explode.
Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions
section of this manual.
Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the
safety precautions, always follow the safety precautions.


1-2-1 General Servicing Precautions
1. Always unplug the unit's AC power cord from the 4. Check the insulation between the blades of the AC
AC power source and disconnect the DC Power plug and accessible conductive parts (examples:
Jack before attempting to: metal panels, input terminals and earphone jacks).
(a) remove or reinstall any component or assembly, 5. Insulation Checking Procedure: Disconnect the
(b) disconnect PCB plugs or connectors, (c) connect power cord from the AC source and turn the power
a test component in parallel with an electrolytic switch ON. Connect an insulation resistance meter
capacitor. (500 V) to the blades of the AC plug.
2. Some components are raised above the printed The insulation resistance between each blade of the
circuit board for safety. An insulation tube or tape AC plug and accessible conductive parts (see
is sometimes used. The internal wiring is above) should be greater than 1 megohm.
sometimes clamped to prevent contact with
6. Always connect a test instrument's ground lead to
thermally hot components. Reinstall all such
the instrument chassis ground before connecting
elements to their original position.
the positive lead; always remove the instrument's
3. After servicing, always check that the screws, ground lead last.
components and wiring have been correctly
reinstalled. Make sure that the area around the
serviced part has not been damaged.



1-3 Electrostatically Sensitive Devices (ESD) Precautions
Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly
called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some field-effect
transistors. The following techniques will reduce the incidence of component damage caused by static electricity.

1. Immediately before handling any semiconductor 6. Do not remove a replacement ESD from its
components or assemblies, drain the electrostatic protective package until you are ready to install it.
charge from your body by touching a known earth Most replacement ESDs are packaged with leads
ground. Alternatively, wear a discharging wrist- that are electrically shorted together by conductive
strap device. To avoid a shock hazard, be sure to foam, aluminum foil or other conductive materials.
remove the wrist strap before applying power to 7. Immediately before removing the protective
the monitor. material from the leads of a replacement ESD,
2. After removing an ESD-equipped assembly, place it touch the protective material to the chassis or
on a conductive surface such as aluminum foil to circuit assembly into which the device will be
prevent accumulation of an electrostatic charge. installed.
3. Do not use freon-propelled chemicals. These can Caution: Be sure no power is applied to the
generate electrical charges sufficient to damage chassis or circuit and observe all
ESDs. other safety precautions.
4. Use only a grounded-tip soldering iron to solder or
desolder ESDs. 8. Minimize body motions when handling
unpackaged replacement ESDs. Motions such as
5. Use only an anti-static solder removal device. Some brushing clothes together, or lifting your foot from
solder removal devices not classified as "anti-static" a carpeted floor can generate enough static
can generate electrical charges sufficient to damage electricity to damage an ESD.
ESDs.




1-2 LT22A13W
CONFIDENTIAL
2 Product Specifications
2-1 Specifications

Item Description

LCD Panel TFT-LCD panel, RGB vertical stripe, normally Black, 22-Inch viewable, 0.381 mm pixel pitch
Scanning Frequency Horizontal : 30 kHz ~ 61 kHz (Automatic)
Vertical : 56 Hz ~ 75 Hz (Automatic)
Display Colors 16.7 Million colors
Maximum Resolution Horizontal : 1280 Pixels
Vertical : 720 Pixels
Input Video Signal Analog 0.7 Vp-p ± 5% positive at 75 , internally terminated
Input Sync Signal Type : Separate H/V
Level : TTL level
Maximum Pixel Clock rate 70 MHz
Active Display
487.68 mm / 274.32 mm
Horizontal/Vertical
AC power voltage & Frequency AC 90 ~ 264 Volts, 60 / 50 Hz ± 3 Hz
Power Consumption 120 W (Max)
Dimensions
Unit (W x D x H) 23.6 x 7.3 x 18.4 Inches (600 x 185 x 468 mm)
Carton (W x D x H) 27.6 x 21.8 x 10.2 Inches (702 x 553 x 260 mm)
Weight (Unit/Gross) 8.8 Kg (19.4 Ibs) / 15.3 Kg (33.7 Ibs)
Environmental Considerations Operating Temperature : 50 °F ~ 104 °F (10 °C ~ 40 °C)
Humidity : 10 % ~ 80 %
Storage Temperature : -4 °F ~ 113 °F (-20 °C ~ 45 °C)
Humidity : 5 % ~ 95 %
Tuning Frequency Synthesize
TV System System NTSC-M

Sound STEREO

Antenna Input 75, Coaxial Cable

­ MAX Internal speaker Out : Right => 7W
Left => 7W
Sound Characteristic ­ Woofer Speaker (option) : 500mV RMS at 20~150 Hz

­ BASS Control Range : -12 dB~ + 12 dB
­ TREBLE Control Range : -12 dB~ + 12 dB
­ Headphone Out: 5mW max (400m Vrms)
­ Output Frequency : RF => 80 Hz ~ 15 kHz
A/V => 80 Hz ~ 15 kHz




LT22A13W 2-1
2 Product Specifications
CONFIDENTIAL
2-2 Pin Assignments

2-2-1 DVI-I (Analog & Digital)
(Ref) DVI-D : Digital only
D-SUB : Analog only


1 2 3 4 5 6 7 8
C1 C2
9 10 11 12 13 14 15 16

C3 C4
17 18 19 20 21 21 22 23




DVI-I Receptacle Connector Front View



2-2-2 DVI-I (Digital video interface)

Table 2-1 Combined analog and digital connector pin assignments

Pin No. Signal Assignment Pin No. Signal Assignment Pin No. Signal Assignment

1 T.M.D.S. Data2- 12 T.M.D.S. Data3- 22 T.M.D.S. Clock Shield
2 T.M.D.S. Data2+ 13 T.M.D.S. Data3+ 23 T.M.D.S. Clock+
3 T.M.D.S. Data2/4 Shield 14 +5V Power 24 T.M.D.S. Clock-
4 T.M.D.S. Data4- 15 Ground C1 Analog Red
5 T.M.D.S. Data4+ (return for +5V, HSync. and VSync.) C2 Analog Green
6 DDC Clock 16 Hot Plug Detect C3 Analog Blue
7 DDC Data 17 T.M.D.S. Data0- C4 Analog Horizontal Sync.
8 Analog Vertical Sync. 18 T.M.D.S. Data0+ C5 Analog Ground
9 T.M.D.S. Data1- 19 T.M.D.S. Data0/5 Shield (analog R,G&B return)

10 T.M.D.S. Data1+ 20 T.M.D.S. Data5-

11 T.M.D.S. Data1/3 Shield 21 T.M.D.S. Data5+




2-2 LT22A13W
2 Product Specifications
CONFIDENTIAL
2-2-3 DVD, DTV 2-2-4 S-Video

Y Pin Separate
RCA Green
GND 1 GND
2 Y
Pb (Cb) 3 C
RCA Blue
4 GND
GND
5 GND
Pr (Cr)
RCA Red
GND

Audio L
RCA White
GND

Audio R
RCA Red
GND




2-2-5 A/V

RCA Yellow CVBS

Audio L
RCA White
GND

Audio R
RCA Red
GND




LT22A13W 2-3
2 Product Specifications
CONFIDENTIAL
2-2-6 D4 CONNECTOR




Pin Separate

1 Y
2 Y_GND
3 Pb
4 Pb_GNd
5 Pr
6 Pr_GNd
7 Preliminary Line1
8 Line1
9 Line5
10 Preliminary Line2
11 Line3
12 Switch GND
13 Prlimainary Line3
14 Switch




Line 1 Line2 Line3
(Resolution) (i/p) (Aspect)

5V 1080 60p 16 : 9

2.2V 720 - letter box

0V 480 60i 4:3




2-4 LT22A13W
2 Product Specifications
CONFIDENTIAL
2-3 Timing Chart

This section of the service manual describes the timing that the computer industry recognizes as standard
for computer-generated video signals.

2-3-1 LCD Panel Mode : 1 mode
N/I : Non-Interlaced, I : Interlaced




µs
µs
µs
µs
µs
µs
µs
µs




LT22A13W 2-5
2 Product Specifications
CONFIDENTIAL
2-3-2 Supported Modes (1)




µs µs µs µs µs
µs µs µs µs µs
µs µs µs µs µs
µs µs µs µs µs
µs µs µs µs µs
µs µs µs µs µs
µs µs µs µs µs
µs µs µs µs µs




2-6 LT22A13W
2 Product Specifications
CONFIDENTIAL
2-3-2 Supported Modes (2)




µs µs µs µs
µs µs µs µs
µs µs µs µs
µs µs µs µs
µs µs µs µs
µs µs µs µs
µs µs µs µs
µs µs µs µs




LT22A13W 2-7
2 Product Specifications
CONFIDENTIAL
Memo




2-8 LT22A13W
CONFIDENTIAL
3 Disassembly and Reassembly
This section of the service manual describes the disassembly and reassembly procedures for the
LT22A13W monitor.

WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling
these components.

3-1 Disassembly
Cautions:1. Disconnect the monitor from the power source before disassembly.
2. Follow these directions carefully; never use metal instruments to pry apart the cabinet.


1. Remove 4 screws from the rear cover.




2. Remove the stand from LCD-TV.




3. Remove 1 screw from the rear cover.




LT22A13W 3-1
3 Disassembly and Reassembly
CONFIDENTIAL
4. Insert a screw driver into the right and left
holes on the stand's upper groove
respectively. Lift up the right & left side.




5. Pull the rear cover.




3-2 Reassembly

Reassembly procedures are in the reverse order of disassembly procedures.




3-2 LT22A13W
CONFIDENTIAL
4 Alignments and Adjustments
4-1 General Alignment Instuction
1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specified test equipment or its equivalent.
3. Correct impedance matching is essential.
4. Avoid overload. Excessive signal from a sweep generator might overload the front-end
of the TV. When inserting signal markers, do not allow the marker generator to distort
test result.
5. Connect the TV only to an DC power source with voltage and frequency as specified on
the backcover nameplate.
6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure
that the power cord is disconnected before replacing any parts.
7. To protect aganist shock hazard, use an isolation transformer.




LT22A13W 4-1
4 Alignments and Adjustments
CONFIDENTIAL
4-2 Factory Mode Adjustments
4-2-1 Entering Factory Mode
1. To enter "Service Mode" Press the remote -control keys in this sequence :
- If you do not have Factory remote - control




- If you have Factory remote - control




4-2-2 Factory Mode Tree




4-2 LT22A13W
4 Alignments and Adjustments
CONFIDENTIAL




LT22A13W 4-3
4 Alignments and Adjustments
CONFIDENTIAL
Memo




4-4 LT22A13W
CONFIDENTIAL
5 Troubleshooting
5-1 No Power

Does proper DC 14V No
1-1 Check SMPS's part and adapter.
appear at Pin 1 of CN923?

Yes

No IC811 is bad.
Does proper DC 3.3V_A
1-2 Change main assy.
appear at Pin 2 of IC811?
(BN94-00397A)

Yes

No IC802 is bad.
Does proper DC 2.5V_A
1-3 Change main assy.
appear at Pin 3 of IC802?
(BN94-00397A)

Yes

No IC805 is bad.
Does proper DC 3.3V_B
1-4 Change main assy.
appear at Pin 1 of IC805?
(BN94-00397A)

Yes

No IC806 is bad.
Does proper DC 2.5V_B
1-5 Change main assy.
appear at Pin 3 of IC806?
(BN94-00397A)

Yes

No IC812 is bad.
Does proper DC 5V_A
1-6 Change main assy.
appear at Pin 2 of IC812?
(BN94-00397A)

Yes

Does proper DC 5V_A No IC804 or IC967 are bad.
1-7
appear at Pin 2 of Change main assy.
1-8
IC804 and Pin 2 of IC967? (BN94-00397A)

Yes

No IC807 is bad.
Does proper DC 12V
1-9 Change main assy.
appear at Pin 2 of IC807?
(BN94-00397A)

Yes

No IC803 is bad.
Does proper DC 8V_A
1-10 Change main assy.
appear at Pin 3 of IC803?
(BN94-00397A)




LT22A13W 5-1
5 Troubleshooting
CONFIDENTIAL
WAVEFORMS
1-1 1-2 1-3




1-4 1-5 1-6




1-7 1-8 1-9




1-10




5-2 LT22A13W
5 Troubleshooting
CONFIDENTIAL
5-2 No Video (PC Signal)

Power indicator is green.

Yes

Does the signal
2-1 2-2 appear at C491, C489, No Check CN714 and
2-3 2-4 C488, R424 and R425 of FFC(BN41-00240A) cable.
2-5 R, G, B, H, V?

Yes

No IC350 is bad.
Does the signal appear at
2-6 Change main PCB assy.
IC956 ~ IC961?
(BN94-00397A)

Yes

No R354 is bad.
Does the signal
2-7 Change main PCB assy.
appear at R354?
(BN94-00397A)

Yes

Check is X201.
Does the clock pulse No IC200 is bad.
2-8
appear at X201? Change main PCB assy.
(BN94-00397A)

Yes

No RA301~RA306 are bad.
Does the signal appear at
2-9 Change main PCB assy.
RA301~RA306?
(BN94-00397A)

Yes


Does the signal No
2-10 Power indicator is green.
appear at CN924?


Yes


Replace the LCD_Panel with new one.




LT22A13W 5-3
5 Troubleshooting
CONFIDENTIAL
WAVEFORMS
2-1 2-2 2-3




2-4 2-5 2-6




2-7 2-8 2-9




2-10




5-4 LT22A13W
5 Troubleshooting
CONFIDENTIAL
5-3 No Picture (Tuner CVBS, AV CVBS, S-Video)

Does the signal
3-1 3-2 appear at C744(Tuner), No Check CN712 and
3-3 3-4 C746(AV), C747(SVHS_Y) FFC(3809-001406) cable.
and C748(SVHS_C)?

Yes

Does the signal appear
at R214(Tuner), R215(AV), No IC722 is bad.
3-5 3-6
R219(SVHS_Y) and Change main PCB assy.
3-7 3-8
R224(SVHS_C) in IC722? (BN94-00397A)


Yes

Does the signal No IC200 is bad.
3-9 3-10
appear at R308(Blue), Change main PCB assy.
3-11
R310(Green) and R311(Red)? (BN94-00397A)


Yes

Check is X201
Does the clock pulse No IC200 is bad.
3-12
appear at X201? Change main PCB assy.
(BN94-00397A)

Yes


No RA301~RA306 are bad.
Does the signal appear at
3-13 Change main PCB assy.
RA301~RA306?
(BN94-00397A)


Yes


Does the signal No
3-14 Power indicator is green.
appear at CN924?


Yes


Replace the LCD_Panel with new one.




LT22A13W 5-5
5 Troubleshooting
CONFIDENTIAL
WAVEFORMS
3-1 3-2 3-3




3-4 3-5 3-6




3-7 3-8 3-9




3-10 3-11 3-12




3-13 3-14




5-6 LT22A13W
5 Troubleshooting
CONFIDENTIAL
5-4 No Picture (DVD, DTV)
Does the signal
4-1 4-2 No
appear at C437, Check CN713 and
4-3 4-4
C438, C439(DVD) FFC(3809-001406) cable.
4-5 4-6
and C435, C432?


Yes


4-7 4-8 Does the signal appear at No Check CN713 and
4-9 C493, C403 and C483? FFC(3809-001406) cable.



Yes

No Check IC350 is bad.
Does the signal appear at
4-10 Change main PCB assy.
IC956~IC961?
(BN94-00397A)

Yes

No Check R354 is bad.
Does the signal
4-11 Change main PCB assy.
appear at R354?
(BN94-00397A)


Yes

Check is X201.
does the clock pulse No IC200 is bad
4-12
appear at X201? Change main PCB assy.
(BN94-00397A)

Yes


No RA301~RA306 are bad.
Does the signal appear at
4-13 Change main PCB assy.
RA301~RA306?
(BN94-00397A)


Yes

Does the signal No
4-14 Power indicator is green.
appear at CN924?


Yes


Replace the LCD_Panel with new one.



LT22A13W 5-7
5 Troubleshooting
CONFIDENTIAL
WAVEFORMS
4-1 4-2 4-3




4-4 4-5 4-6




4-7 4-8 4-9




4-10 4-11 4-12




4-13 4-14




5-8 LT22A13W
5 Troubleshooting
CONFIDENTIAL
5-5 No Sound

Does the signal appear at
P24(SIF) in CN714 and P2, Check CN714 and
No FFC(BN41-00240A) cable.
5-1 P3(AV_R,L), P5, P18(comp1_L,R),
P20, P21(comp2_L,R), P23, Check CN715 and
P24(PC_L,R) in CN715? FFC(3809-001407) cable.


Yes

Does the signal appear at
No IC919 are bad.
P67(Tuner) and P47, P48(PC) and
5-2 Change main PCB assy.
P56, P57(VCR) and P53, P54(DVD)
(BN94-00397A)
and P50, P51(DTV) in IC919?

Yes

No IC501 is bad.
Does the signal appear at
5-3 Change main PCB assy.
L501~L504?
(BN94-00397A)


Yes



Replace the speaker.




LT22A13W 5-9
5 Troubleshooting
CONFIDENTIAL
WAVEFORMS

5-1 5-2 5-3




5-10 LT22A13W
CONFIDENTIAL
6 Exploded View and Parts List




LT22A13W 6-1
6 Exploded View & Parts List
CONFIDENTIAL
Memo




6-2 LT22A13W
CONFIDENTIAL
8 Block Diagram
8-1 Block Diagram




LTM225W 8-1
8 Block Diagrams
CONFIDENTIAL
8-2 Power Stage Block Diagram




8-2 LTM225W
LTM225W
9
8
7
6
5
4
3
2
1




15
14
13
12
11
10
NC




14V
14V
14V
14V
14V
14V
GND
GND
GND
GND
9-1 Main PCB




ADJ_BRIGHT
1 +14V
2 +14V




INVERTER ON_OFF
9 Wiring Diagram




CN923
VSYNC_TO_INVERTER

HSYNC_TO_INVERTER
3 +14V
4 GND
5 GND




CN921
6 GND




1 GND 16 SCA2
2 +8V 17 5V
3 CH+_OUT 18 GND




CN712
4 YOL+_OUT 19 TUNER_CVBS
5 BUZZER_IN 20 GND
6 CH-_IN 21 +5V
7 VOL-_OUT 22 GND
8 SOURCE_OUT 23 AV_CVBS
9 MENU_OUT 24 GND
10 POWER_KEY 25 3.3V
11 3.3V 26 GND
12 IR 27 SVHS_Y
13 LED_GRN 28 GND
14 LED_RED 29 SVHS_C
15 SCL2 30 GND


GYC 1
GND 2
1 GND 16 GND
RXO- 3
CN924




2 GND 17 COMP1_Pb
RXO+ 4
3 GND 18 COMP1_Pr




CN713
GND 5
4 GND 19 GND
RX1- 6
5 GND 20 COMP2_Y
RX1+ 7
6 GND 21 GND GND 8
7 GND 22 COMP2_Pb
RX2- 9
8 GND 23 COMP2_Pr
RX2+ 10
9 GND 24 GND
GND 11
10 GND 25 D4_L1
RX3- 12
11 GND 26 D4_L2
RX3+ 13
12 GND 27 D4_L3
GND 14
13 GND 28 D4_2_CONT1
RXC- 15
14 GND 29 D4_2_CONT2(SC2_SW)
RXC+ 16
15 COMP1_Y 30 D4_2_CONT3
GND 17
GND 18
5V 19
5V 20
1 PC_RED 16 RX2-
2 PC_GREEN 17 RX2+
3 PC_BLUE 18 GND
CN714




4 GND 19 RXC-
5 PC_HSYNC 20 RXC+
6 PC_VSYNC 21 GND
7 GND 22 PC_5V
8 PC_DOC_SCL 23 GND
9 PC_DDC_SDA 24 SIF
10 IDENT_PC 25 GND
11 GND 26 HP_IDENT
12 RX0- 27 HD_OUT_R
13 RX0+ 28 HD_OUT_L
14 RX1- 29 GND
15 RX1+ 30 WOOFER_OUT




1 GND 16 GND
2 AL_L 17 COMP1_L
3 AL_R 18 COMP1_R
CN715




4 GND 19 GND
5 GND 20 COMP2_L
6 GND 21 COMP2_R
7 GND 22 GND
8 GND 23 PC_L
9 GND 24 PC_R
10 GND
11 GND
CN01




12
(For engineer's reference only)
CN_DPTV_CONTROL




GND
CN501(L)
CN502(R)




13 GND
14 GND
15 GND
SW_PCGAZN
IDENT_FAC
B
G
R
ESDL
ESDA
GND
SCL2
SDA2
H_S
5V




-
+
-
NC
+
GND
ESCL
ESDA




2
1
3
2
1
3
2
1
9
8
7
6
5
4
3
2
1




12
11
10
CONFIDENTIAL




9-1
9-2
6
5
4
3
2
1




9
8
7
6
5
4
3
2
1




10
1 +14V




CH-
9-2 Input




CH+
GND
GND
GND




GND
VOL-
GND
+14V
+14V
+14V




VOL+




MENU
+5V_A
2 +14V




BUZZER



SOURCE
9 Wiring Diagrams




CN15
3 +14V
4 GND
5 GND
SCL2 16 GND 1
6 GND
LED_RED 17 SVHS_C 2




CN16
18 3




CN2
CN1
LED_GRN GND
IR 19 SVHS_Y 4
GND 20 GND 5
1 GND SW 21 GND 6
2 AV_CVBS




CN19
MENE 22 GND 7
3 NC SOURCE 23 AV_CVBS 8
VOL- 24 GND 9
CH- 25 GND 10
BUZZER 26 GND 11
1 GND VOL+ 27 TUNER_CVBS 12
2 AV_R CH+ 28 GND 13




CN11
3 AV_R GND 29 GND 14
4 GND GND 30 SDA2 15
5 AV_L
6 AV_L


DVD_Y 16 GND 1
1 SVHS_C GND 17 GND 2
GND 18 GND 3
CN18




2 SVHS_Y




CN7
3 GND GND 19 NC 4
4 GND GND 20 NC 5
5 GND GND 21 NC 6
6 NC GND 22 GND 7
GND 23 DTV_Pr 8
GND 24 DTV_Pb 9
GND 25 GND 10
GND GND 26 DTV_Y 11
1
GND 27 GND 12




CN6
2 WOOFER_OUT
GND 28 DVD_Pr 13
3 WOOFER_OUT
GND 29 DVD_Pb 14
GND 30 GND 15


1 TUNER




CN8
RX1+ 16 WOOTFER_OUT 1
RX1- 17 GND 2
CN17




1 GND RXO+ 18 HP_OUT_R 3
INPUT BOARD




2 DVD_Pr RXO- 19 HP_OUT_L 4




CN12
3 DVD_Pr GND 20 HP_IDENT 5
4 GND IDENT_PC 21 GND 6
5 DVD_Pb DDC_SDA 22 SIF 7
6 DVD_Pb DDC_SCL 23 GND 8
7 GND GND 24 PC_5V 9
8 NC PC_VSYNC 25 GND 10
9 DVD_Y PC_HSYNC 26 RXC+ 11
GND 27 RXC- 12
PC_BLUE 28 GND 13
PC_GREEN 29 RX2+ 14
PC_RED 30 RX2- 15
1 GND
2 DVD_R
CN9




3 DVD_R
4 GND
5 DVD_L GND 16 PC_R 1
6 DVD_L GND 17 PC_L 2
CN14




GND 18 GND 3
GND 19 DTV_R 4
GND 20 DTV_L 5
GND 21 GND 6
1 GND
AV_R 22 DVD_R 7
2 DTV_Pr AV_L 23 DVD_L 8
3 DTV_Pr