Sharp LC150M2E Schematic

LC-121M2E LC-150M2E

SERVICE MANUAL

S19B4LC121M2E

LCD AV MONITOR

LC-121M2E

LC-150M2E

LCD AV MONITOR

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified be used.

1. IMPORTANT SERVICE SAFETY PRECAUTION .................................................................................... 2

MODELS LC-121M2E/150M2E

2. SPECIFICATIONS ................................................................................................................................... 3

3. PART NAMES.......................................................................................................................................... 4

4. DISASSEMBLY OF THE SET.................................................................................................................. 5

5. ADJUSTING PROCEDURE OF EACH SECTION ................................................................................... 7

6. INTEGRATED CIRCUIT TERMINAL ARRANGEMENTS ........................................................................ 18

7. TROUBLE SHOOTING ............................................................................................................................ 23

8. CHASSIS LAYOUT .................................................................................................................................. 26

9. SCHEMATIC DIAGRAM .......................................................................................................................... 28

10. BLOCK DIAGRAM ................................................................................................................................... 43

11. PRINTED WIRING BOARD ASSEMBLIES .............................................................................................. 45

12. REPLACEMENT PARTS LIST ................................................................................................................. 51

13. PACKING OF THE SET ........................................................................................................................... 63

MODELS

CONTENTS

LC-121M2E LC-150M2E

Page

The component parts of this model are partially different depending on their suffix symbols. Before servicing the units, be sure to check the suffix symbol on the model label that is applied on the bottom side of the unit.

SHARP CORPORATION

Suffix symbol ( , K , X )

LC-121M2E

DVM

AC SCALE

1.5k ohms. 10W

0.15 µF

TEST PROBE

LC-150M2E

1. IMPORTANT SERVICE SAFETY PRECAUTION

æ Service work should be perfomed only by qualified service technicians who are

thoroughly familiar with all safety checks and servicing guidelines which follow:

LC-121M2E LC-150M2E

WARNING

1. For continued safety, no modification of any circuit should be attempted.

2. Disconnect AC power before servicing.

CAUTION

FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE. F701 (1.25A, 250V), F702 (2A, 250V), F703 (1.25A, 250V) FUSE.

A V

BEFORE RETURNING THE MONITOR

(Fire & Shock Hazard) Before returning the monitor to the user, perform the following safety checks:

1. Inspect all lead dress to make certain that leads are not pinched, and check that hardware is not lodged between the chassis and other metal parts in the monitor.

2. Inspect all protective devices such as non-metallic control knobs, insulation materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc.

3. To be sure that no shock hazard exists, check for current in the following manner.

• Plug the AC Adaptor directly into a 100~240 volt AC outlet, and connect the DC power cable into the monitor's DC jack. (Do not use an isolation transformer for this test).

• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.

• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resisor.

• Connect the resistor connection to all exposed metal parts having a return path to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. All checks must be repeated with the AC Adaptor plug connection reversed.(If necessary, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.)

Any reading of 0.3V RMS(this corresponds to 0.2 milliamp. AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

SAFETY NOTICE

Many electrical and mechanical parts in LCD monitor have special safety-related characteristics. These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features are identified by “ å” and shaded areas in the and

Schematic Diagrams

For continued protection, replacement parts must be identical to those used in the original circuit. The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock. fire. or other hazards.

Replacement Parts Lists

LC-121M2E LC-150M2E

2. SPECIFICATIONS

Type: LCD display unit (LCD color AV monitor)

Size: 12.1" type (184.3 mm × 245.8 mm) (LC-121M2E)

15" type (219.9 mm × 305.3 mm) (LC-150M2E)

Display System: Transmitting type TN liquid crystal panel.

Driving System: TFT (Thin Film Transistor) active matrix system

Number of Picture Elements: 921,600 (480 (V) × 640 (H) × 3 (RBG) )

Speaker Output: 0.7 W × 2 (Front)

2 W × 1 (Rear)

Speaker: 30 mm × 40 mm (Elliptic) × 2 (Front)

65 mm (Round) × 1 (Rear)

Light Source: Internal Light (Built-in fluorescent lamp)

Connected Terminals: Input: DC12V, VHS, S-VHS, Audio and DVD

Output: VHS, S-VHS, Audio and Headphone

Power Source: AC 100~240·50/60Hz (Connected to AC Adapter)

Power Consumption (Approx.): 12.1" type 33 W (Connected to AC Adapter) (LC-121M2E)

15" type 35 W (Connected to AC Adapter) (LC-150M2E)

Operating Temparature: –10°C~40°C

12.1" type Dimensions(LC-121M2E): 297.4 mm (W) × 264.6 mm (H) × 87 mm (D) (Includes Set Stand)

297.4 mm (W) × 264.6 mm (H) × 62.5 mm (D) (Not Include Set Stand)

15" type Dimensions(LC-150M2E): 357.7 mm (W) × 309.2 mm (H) × 87 mm (D) (Includes Set Stand)

357.7 mm (W) × 309.2 mm (H) × 62.5 mm (D) (Not Include Set Stand)

Weight (Approx.): 12.1" type 2.9 kg (LC-121M2E)

15" type 3.6 kg (LC-150M2E)

Accessories: Operation Manual, Guarantee Card, AC Adapter, Remote Control,

Set Stand Mounting Screws, Wall mounting set angle and Batteries (AAA size x 2)

LC-121M2E LC-150M2E

Specifications are subject to changed without prior notice.

LC-121M2E LC-150M2E

3. PART NAMES

LC-121M2E LC-150M2E

4. DISASSEMBLY OF THE SET

LC-121M2E LC-150M2E

1. Remove four screws (1).

2. Opening six claws ( a ), release the cabinet B. Remove the wire holder ( b ) and disconnect each connectors (2~6). Remove the cabinet B.

3. Remove two screws (7) which mounting the LCD display unit.

4. Remove soldering of copper-foil tape (8) .

5. Disconnect each connectors (9~e) from the LCD display unit.

6. Remove the cabinet A.

Push

7. Remove four screws (r) which mounting the main PWB unit.

8. Remove one screw (t) and remove the remote control receptor PWB.

9. Remove five screws (y) and GND cable.

10 .Remove ten screws (u) and remove the terminal cover. 11 .Remove two screws (i) and remove the switch PWB.

Cabinet B

Cabinet A

c WH

b WH

Cable

Cabinet A 12 type CCABA2338CE01 GCABA2338CEKA 15 type CCABA2343CE01 GCABA2343CEKA

Cabinet B 12 type CCABB2246CE01 GCABB2246CEKA (LC-121M2E/K) CCABB2246CE03 GCABB2246CEKA (LC-121M2X) 15 type CCABB2249CE01 GCABB2249CEKA (LC-150M2E/K) CCABB2249CE03 GCABB2249CEKA (LC-150M2X)

LC-121M2E LC-150M2E

12.Remove one screw (o) and remove the Sosu shield angle.

13. Remove four screws (p) which mounting the LCD display unit.

14.Spread bites of the LCD unit (a) out to be off from claws.

15.Remove the Lamp unit (s).

Holder LHLDZ2082CEKZ (LC-121M2E) LHLDZ2085CEKZ (LC-150M2E)

LC-121M2E LC-150M2E

5. ADJUSTING PROCEDURE OF EACH SECTION

The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust as follows.

5-1. Preparation for adjustment

(1)Use the exclusive-use AC adapter or stable DC power supply.

AC adapter: UADP-0181CEZZ DC power supply: 12 ± 0.5V

5-2. Special mode setting procedure

(1)After initialization of E2PROM the mode is changed to the adjustment mode.

[Procedure] Connect TP2007 and TP2008 to GND, and turn on the power.

[Description]

• The initialization of microcomputer is as follows.

• AV position, DAC data, G/A data, and video chroma data adjustment values are taken as defaults.

(2)Change to adjustment mode

[Procedure] Short-circuit TP2007 to GND, and turn on the power. Or short-circuit TP2008 to GND, and turn on the power. Or holding down the [AV INPUT] key and [MENU] key, turn on the main power, and simultaneously press the (inspection process) [SELECT "] key and [VOL– ] key to change the mode to the adjustment mode.

LC-121M2E LC-150M2E

[Description] The manual adjustment or adjustment through communication with the automatic machine is performed.

(3)Inspection mode

[Procedure] Holding down the [AV INPUT] key and [MENU] key, turn on the power.

[Description]

• In the ordinary menu select “PICTURE” with the [SELECT] key, and decide with the [VOL] key. Then select “CONTRAST”, “TINT (only NTSC)”, “COLOR”, “BLACK LEVEL”, “SHARPNESS”, “RED” , and “BLUE” with the [SELECT] key, and decide with the [VOL] key. After that, adjust values with the [VOL] key.

• In the ordinary menu select “SOUND” with the [SELECT] key, and decide with the [VOL] key. Then, select “TREBLE”, “BASS”, and “BALANCE” with the [SELECT] key, and decide with the [VOL] key. After that adjust values with the [VOL] key.

• VOLUME, CONTRAST, TINT (only NTSC), COLOR, BLACK LEVEL, SHARPNESS, RED, BLUE, TREBLE, BASS, and BALANCE change as follows.

ûMin.Û ûCenterÛ ûMax.Û

(4)Shipping setting mode

[Procedure] Holding down the [AV INPUT] key and [MENU] key, turn on the main power, and simultaneously press the (inspection process) [SELECT '] key and [VOL+] key to change the mode to the adjustment mode.

[Description] User adjustment and other values are taken as defaults. If AV1 is indicated as SETTING COMPLETE, setting has been completed.

LC-121M2E LC-150M2E

5-3. Cancel of special mode

Turn off the main unit power.

5-4. Preparation adjustment

(1)Use the exclusive-use AC adapter or stable DC power supply.

AC adapter: UADP-0181CEN1 DC power supply: 12 ± 0.5V

5-5. OSD menu indication and items in case of manual adjustment

Adjusting range

Page Item Minimum Maximum Initial Remarks

1 + B – ADJ 0 255 128

MODEL M2H F2/M2H/M2U/M2E TUNER OFF 1/2/OFF AUDIO MULTIPLEX OFF OFF/ON BOOSTER 0 0/1/2/3 SYSTEM AUTO N358/N443/PAL/PAL-M/SECAM/AUTO COPY GUARD ON OFF/ON CH MEMORY OFF OFF/12/16 SECAM ON OFF/ON MULTI LANG. OFF OFF/ON TIMER OFF OFF/ON

The Ver. No. will be displayed on the lowest part of lines.

2 TA1276 DATA ~~~~

COM 0 255 128 NTSC/PALM OSC 0 255 128 N358 BRIGHTNESS 0 255 170 R CUTOFF 0 255 80 B CUTOFF 0 255 80 N358UNICOLOR 0 127 80 R DRIVE 0 127 64 B DRIVE 0 127 64 N358SCOLOR 0 31 25 N358TINT 0 127 74 DATA COPY WAIT WAIT/SEND

3 N358 R-Y PHASE 0 3 2

N358 B-Y PHASE 0 3 1 N443 BRIGHTNESS 0 255 170 N443 UNICOLOR 0 127 80 N443 SCOLOR 0 31 25 N443TINT 0 127 74 PAL-M BRIGHTNESS 0 255 170 PAL-M UNICOLOR 0 127 80 PAL-M SCOLOR 0 31 25 PAL-M TINT 0 127 74 R-ADJ 0 255 128

One blank line.

LC-121M2E LC-150M2E

4 PAL/SECAM OSC 0 255 128

5 DVD NT BRIGHTNESS 0 255 170

6 TEST PATTERN OFF ON/OFF

7 N443 R-YPHASE 0 3 2 Fixed

LC-121M2E LC-150M2E

PAL BRIGHTNESS 0 255 170 PAL UNICOLOR 0 127 80 PAL SCOLOR 0 31 25 PAL TINT 0 127 74 BELL F0 0 255 120 B-Y BLACK LEVEL 0 15 8 R-Y BLACK LEVEL 0 15 8 SECAM BRIGHTNESS 0 255 170 SECAM UNICOLOR 0 127 80 SECAM COLOR 0 127 75 SECAM TINT 0 127 74

DVD NT UNICOLOR 0 127 80 DVD NT COLOR 0 127 75 DVD NT TINT 0 127 74 DVD NT R-YPHASE 0 3 2 DVD NT B-YPHASE 0 3 3 DVD PAL BRIGHTNESS 0 255 170 DVD PAL UNICOLOR 0 127 80 DVD PAL COLOR 0 127 75 DVD PAL TINT 0 127 74 I2C DATA 000000 I2C DATA WAIT WAIT/SEND

G/A DATA 0000 G/A DATA WAIT WAIT/SEND DIGITAL SYNC SEP. 0 FF 87 Fixed AV NTSC H 0 7F 18 Fixed DVD NTSC H 0 7F 1C Fixed AV PAL H 0 7F 11 Fixed DVD PAL H 0 7F 15 Fixed AV SECAM H 0 7F 0E Fixed NT/PALM V 1 1F 0C Fixed PAL V 1 1F 0B Fixed SECAM V 1 1F 0B Fixed

N443 B-YPHASE 0 3 1 Fixed PAL R-YPHASE 0 3 2 Fixed PAL B-YPHASE 0 3 1 Fixed PAL-M R-YPHASE 0 3 2 Fixed PAL-M B-YPHASE 0 3 1 Fixed SECAM R-YPHASE 0 3 2 Fixed SECAM B-YPHASE 0 3 1 Fixed DVD PAL R-YPHASE 0 3 2 Fixed DVD PAL B-YPHASE 0 3 1 Fixed COLOR 0 127 60 Fixed SCONT 0 31 18 Fixed

LC-121M2E LC-150M2E

8 DAC 2 1ch 0 255 0 Fixed

DAC 2 2ch 0 255 0 Fixed DAC 2 3ch 0 255 0 Fixed DAC 2 4ch 0 255 0 Fixed DAC 2 5ch 0 255 0 Fixed DAC 2 6ch 0 255 0 Fixed DAC 2 7ch 0 255 0 Fixed DAC 2 8ch 0 255 0 Fixed DAC 2 9ch 0 255 0 Fixed DAC 2 10ch 0 255 0 Fixed DAC 2 11ch 0 255 0 Fixed DAC 2 12ch 0 255 0 Fixed

5-6. Service Adjusting

5-6-1. Basic Adjustment

1 +B Adjustment 1. Connect the DC voltmeter to 1. Adjust +B-ADJ to 5.1V ± 0.05V.

LC-121M2E LC-150M2E

Adjustment Adjusting conditions Adjusting method

TP1104 ( DAC 9ch )

2 Model setup 1. Make sure that M2H has been set. When M2H is selected, the item

(Not setting M2E) settings are as follows.

TUNER OFF AUDIO MULTIPLEX OFF BOOSTER 0 SYSTEM AUTO COPY GUARD ON CH MEMORY OFF SECAM ON MULTI LANG. OFF TIMER OFF

3 Counter-bias adjustment 1. Set the AV1 mode to set signal 1. Adjust COM so as to minimize the

noninput state. waveform peak-peak.

2. Fit the specified adjusting instrument (DAC7ch) to the screen center.

3. Observe the adjusting instrument output on the oscilloscope.

4 NTSC / PAL-MOSC 1. Input the monoscope pattern of 1. Adjust NTSC/PALM OSC so as to

adjustment NTSC into AV1. get the normal screen.

(DAC8ch)

LC-121M2E LC-150M2E

5-6-2. AV input Adjustment

Adjustment Adjustment conditions Adjustment method

1 Brightness adjustment 1. Input the standard colour bar signal 1. Adjust N358 BRIGHTNESS, and

(N358) (the same pattern as that of JPN-8CH) adjust the black level of G output so

2 R-cut off adjustment 1. Input the standard colour bar signal 1. Adjust R CUTOFF so as to equalize

3 B-cut off adjustment 1. Input the standard colour bar signal 1. Adjust B CUTOFF so as to equalize

4 Unicolor adjustment 1. Input the standard colour bar signal 1. Adjust N358UNICOLOR, and

(N358) (the same pattern as that of JPN- adjust so as to get 100% white-

LC-121M2E LC-150M2E

of N358 into AV1. as to get DC 1.5±0.05V.

2. Connect the oscilloscope to TP821 (IC803, pin7, G output).

(the same pattern as that of JPN-8CH) the black levels of green and red. of N358 into AV1.

2. Connect the oscilloscope to TP821 (IC803, pin7, G output).

3. Connect the oscilloscope to TP819 (IC803, pin1, R output).

(the same pattern as that of JPN-8CH) the black levels of green and blue. of N358 into AV1.

2. Connect the oscilloscope to TP821 (IC803, pin7, G output).

3. Connect the oscilloscope to TP820 (IC803, pin8, B output).

8CH) of N358 into AV1. black level video component equal

2. Connect the oscilloscope to TP821 to 2.3±0.05Vp-p. (IC803, pin7, G output).

5 R DRIVE adjustment 1. Input the standard colour bar signal 1.Adjust so as to get 100% white level

(the same pattern as that of JPN- identical with that of green. 8CH) of N358 into AV1.

2. Connect CH1 of oscilloscope to TP821 (G output).

3. Connect CH2 of oscilloscope to TP819 (R output).

LC-121M2E LC-150M2E

6 B DRIVE adjustment 1. Input the standard colour bar signal 1. Adjust so as to get 100% white level

7 Colour level adjustment 1. Input the standard colour bar signal Adjust N358 SCOLOR so as to get the

LC-121M2E LC-150M2E

(the same pattern as that of JPN- identical with that of green. 8CH) of N358 into AV1.

2. Connect CH1 of oscilloscope to TP821 (G output).

3. Connect CH2 of oscilloscope to TP820 (B output).

(N358) (the same pattern as that of JPN- colour bar signal blue amplitude

8CH) of N358 into AV1. (black level - peak level) equal to 2.0V

2. Connect the oscilloscope to TP820 ± 0.05Vp-p. (B output).

8 Tint adjustment 1. Input the standard colour bar signal 1. Adjust N358TINT so as to get the

(N358) (the same pattern as that of JPN- colour bar signal magenta amplitude

8CH) of N358 into AV1. (black level-peak level) equal to 1.7V

2. Connect the oscilloscope to TP820 ± 0.05Vp-p. (B output).

9 N443/PAL-M adjustment 1. Position the cursor on DATA COPY 1. The indication changes from WAIT

and press VOL key. to SEND, and after the lapse of one

second WAIT is restored. Thus, N443, PAL-M adjustment is completed.

10 4V adjustment 1. Connect the DC voltmeter to TP1110 1. Adjust R-ADJ to 4.0V ± 0.05V.

(DAC 6ch)

11 PAL/SECAM OSC 1. Input the monoscope pattern of PAL 1. Adjust PAL/SECAM OSC so as to

adjustment into AV1. get the normal screen.

(DAC8ch)

LC-121M2E LC-150M2E

12 Brightness adjustment 1. Input the standard colour bar signal 1. Adjust PAL BRIGHTNESS, and

13 Unicolor adjustment 1. Input the standard colour bar signal 1. Adjust PAL UNICOLOR, and adjust

LC-121M2E LC-150M2E

(PAL) of PAL into AV1. adjust the black level of G output

2. Connect oscilloscope to TP821 so as to get DC 1.5 ±0.05V. (IC803, pin7, G output).

(PAL) of PAL into AV1. so as to get 100% white-black level

2. Connect oscilloscope to TP821 video component equal to 2.3±0.05 (IC803, pin7 , G output ). Vp-p.

14 Colour level adjustment 1. Input the standard colour bar signal Adjust PAL SCOLOR so as to get the

(PAL) (the same pattern as that of E-12CH) colour bar signal blue amplitude

of PAL into AV1. (black level - peak level) equal to 2.0V

2. Connect the oscilloscope to TP820 ±0.05Vp-p. (B output).

15 Tint adjustment 1. Input the standard colour bar signal 1. Adjust PAL TINT so as to get the

(PAL) (the same pattern as that of E-12CH) colour bar signal magenta amplitude

of PAL into AV1. (black level-peak level) equal to 1.7V

2. Connect the oscilloscope to TP820 ±0.05Vp-p. (B output).

LC-121M2E LC-150M2E

16 BELL f0 adjustment 1. Connect the oscilloscope to 1. Adjust BELL f0 so as to minimize the

17 Brightness adjustment 1. Input the standard colour bar signal 1. Adjust SECAM BRIGHTNESS, and

18 Unicolor adjustment 1. Input the standard colour bar signal 1. Adjust SECAM UNICOLOR, and

LC-121M2E LC-150M2E

TP2851. a-level.

(SECAM) (the same pattern as that of E-10CH) adjust the black level of G output to

of SECAM into AV1. DC 1.5±0.05V.

2. Connect oscilloscope to TP821 (IC803, pin7, G output).

(SECAM) (the same pattern as that of E-10CH) adjust so as to get 100% white-black

of SECAM into AV1. level video component equal to 2.3±

2. Connect oscilloscope to TP821 0.05Vp-p. (IC803, pin7, G output ).

19 Colour level adjustment 1. Input the standard colour bar signal Adjust SECAM COLOR so as to get

(SECAM) (the same pattern as that of E-10CH) the colour bar signal blue amplitude

of SECAM into AV1. (black level - peak level) equal to 2.0V

2. Connect the oscilloscope to TP820 ±0.05Vp-p. (B output).

20 Tint adjustment 1. Input the standard colour bar signal 1. Adjust SECAM TINT so as to get the

(SECAM) (the same pattern as that of E-10CH) colour bar signal magenta amplitude

of SECAM into AV1. (black level-peak level) equal to 1.7V

2. Connect the oscilloscope to TP820 ±0.05Vp-p. (B output).

LC-121M2E LC-150M2E

5-6-3. Component input Adjustment

Adjustment Adjusting conditions Adjusting method

1 Brightness adjustment 1. From SG, input the 100% white colour Adjust DVD NT BRIGHTNESS, and

(NTSC) bar signal of NTSC into conponent adjust the black level of G output so

2 Unicolor adjustment 1. From SG, input the 100% white colour Adjust DVD NT UNICOLOR, and

(NTSC) bar signal of NTSC into conponent adjust so as to get 100% white-

LC-121M2E LC-150M2E

terminal. as to get DC 1.5±0.05V.

2. Connect oscilloscope to TP821 (IC803, pin7, G output).

terminal. black level video component equal

2. Connect oscilloscope to TP820 to 2.3±0.05Vp-p. (IC803, pin8).

3 Colour level adjustment 1. From SG, input the 100% white colour Adjust DVD NT COLOR so as to get

(NTSC) bar signal of NTSC into conponent the colour bar signal blue amplitude

terminal. (black level - peak level) equal to

2. Connect the oscilloscope to TP820 2.8V±0.05Vp-p. (B output).

4 Tint adjustment 1. From SG, input the 100% white colour Adjust DVD NT TINT so as to get the

(NTSC) bar signal of NTSC into conponent colour bar signal magenta amplitude

terminal. (black level - peak level) equal to 2.3V

2. Connect the oscilloscope to TP820 ±0.05Vp-p. (B output).

LC-121M2E LC-150M2E

5 Brightness adjustment 1. From SG, input the 100% white colour Adjust DVD PAL BRIGHTNESS, and

6 Unicolor adjustment 1. From SG, input the 100% white colour Adjust DVD PAL UNICOLOR, and

LC-121M2E LC-150M2E

(PAL) bar signal of PAL into conponent adjust the black level of G output so

terminal. as to get DC 1.5±0.05V.

2. Connect oscilloscope to TP821 (IC803, pin7, G output).

(PAL) bar signal of PAL into conponent adjust so as to get 100% white-

terminal. black level video component equal

2. Connect oscilloscope to TP820 to 2.3±0.05Vp-p. (IC803, pin8, B output).

7 Colour level adjustment 1. From SG, input the 100% white colour Adjust DVD PAL COLOR so as to get

(PAL) bar signal of PAL into conponent the colour bar signal blue amplitude

terminal. (black level - peak level) equal to

2. Connect the oscilloscope to TP820 2.8V±0.05Vp-p. (B output).

8 Tint adjustment 1. From SG, input the 100% white colour Adjust DVD PAL TINT so as to get

(PAL) bar signal of PAL into conponent the colour bar signal magenta amplitude

terminal. (black level - peak level) equal to

2. Connect the oscilloscope to TP820 2.3V±0.05Vp-p. (B output).

LC-121M2E LC-150M2E

5-7. Shipping setting

(1)[Procedure]

Holding down the [AV INPUT] key and [MENU] key, turn on the main power, and simultaneously press the (inspection process) [SELECT '] key and [VOL+] key to change the mode to the adjustment mode.

(2)[Indication]

AV1 is indicated as SETTING COMPLETE.

(3)[Description]

Mode is memorized as SETTING COMPLETE. Menu setting descriptions are as follows.

VOLUME 30 CONTRAST 30 (AV1 / AV2 / COMPONENT) TINT 0 (AV1 / AV2 / COMPONENT) (ONLY NTSC) COLOUR 0 (AV1 / AV2 / COMPONENT) SHARPNESS 0 (AV1 / AV2 / COMPONENT) RED 0 (AV1 / AV2 / COMPONENT) BLUE 0 (AV1 / AV2 / COMPONENT) COLOUR SYSTEM AUTO (AV1 / AV2 / COMPONENT) TREBLE 0 BASS 0 BALANCE 0 BRIGHTNESS BRIGHT UPSIDE NORMAL RIGHT / LEFT NORMAL AV2 IN / OUT IN

LC-121M2E LC-150M2E

AV1

SETTING COMPLETE

LC-121M2E LC-150M2E

6. INTEGRATED CIRCUIT TERMINAL ARRANGEMENTS

1. IC2001 (QFP, 80pins)

Terminal No. Terminal name I/O Function

1 N. C – 2 N. C – 3 KEY3 I Key input 3 4 KEY4 I Key input 4 5 H PDET I Headphon input pickup 6 M O Audio selection 1 7 S O Audio selection 2 8 MONO O Forced monophonic

9 FS MUT O Front speaker MUTE output 10 RS MUT O Rear speaker MUTE output 11 N. C – 12 N. C – 13 CSYNC I Composite sync signal input 14 IF AGC I IFAGC input 15 PLCS O TV PLL chip select output 16 MRDY I I2C bus opening/connection selection input 17 PLLD I TV-PLL lock signal input 18 LMUTE O Lineout-Mute output 19 SCLK I/O Serial clock signal 20 SOUT O Serial data output 21 AFT I AFT voltage input 22 AGC I AGC input voltage 23 SCL I/O I2C bus serial clock line 24 SDA I/O I2C bus serial data line 25 N. C – 26 N. C – 27 CNV s s GND connection 28 φ O Timing output 29 RESET I Change to “Reset mode” in “L” state 30 Xin I Microcomputer oscillator connection 31 Xout O Microcomputer oscillator connection 32 V s s I GND 33 PSW I Power switch input 34 POW O DC/DC control output 35 COCS O G/A chip selection output 36 DACS O D/A chip selection output 37 BOOST O Booster selection output 38 BOOLV O Booster level selection output 39 N. C – 40 N. C – 41 DA2CS O D/A 2 chip selection output 42 AV1/AV2 O Analog SW selection 1 43 AV/S O Analog SW selection 2 44 Y/COM O Analog SW selection 3 45 IN/OUT O Analog SW selection 4 46 REQ O “H” in [ADJUSTMENT] mode, “L” in other modes. 47 Empty I 48 STB O Micro computer power off output 49 SECAM O “H” in SECAM mode, “L” in other modes.

LC-121M2E LC-150M2E

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