32SC260

SERVICE MANUAL

COLOR TELEVISION

Chassis No. GB-3D(1W)
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 should be used.

CONTENTS

Page ELECTRICAL SPECIFICATIONS.... 1 IMPORTANT SERVICE SAFETY PRECAUTION... 2 LOCATION OF USER'S CONTROL.... 4 INSTALLATION AND SERVICE INSTRUCTIONS... 5 SERVICE ADJUSTMENT.... 9 CHASSIS LAYOUT..... 12 BLOCK DIAGRAM.... 13 DESCRIPTION OF SCHEMATIC DIAGRAMS & WAVEFORMS...14 SCHEMATIC DIAGRAMS.... 15 PRINTED WIRING BOARD ASSEMBLIES... 22 PARTS LIST..... 27 PACKING OF THE SET..... 36
ELECTRICAL SPECIFICATIONS
POWER INPUT... 120V AC, 60 Hz POWER RATING.. 155W PICTURE SIZE.. 3,073 cm2 (476sq inch) CONVERGENCE... Magnetic SWEEP DEFLECTION.. Magnetic FOCUS.. Hi-Bi-Potential Electrostatic INTERMEDIATE FREQUENCIES Picture IF Carrier Frequency. 45.75 MHz (Analog Terrestrial) Sound IF Carrier Frequency. 41.25 MHz (Analog Terrestrial) Color Sub-Carrier Frequency.. 42.17 MHz (Analog Terrestrial) IF Center Frequency. 44 MHz (Digital Terrestrial) (Nominal) AUDIO POWER OUTPUT RATING. 3.0W + 3.0W (at 10% distortion and Dual CH Operate) (EIA, Channel Plan U.S.A.) SPEAKER SIZE... 12 x 5 cm oval (2 pcs.) VOICE COIL IMPEDANCE.. 16 ohm at 400 Hz ANTENNA INPUT IMPEDANCE VHF/UHF... 75 ohm Unbalanced TUNING RANGES VHF-Channels... 2 thru 13 UHF-Channels.. 14 thru 69 CATV Channels... 1 thru 125 Digital Terrestrial Broadcast (VHF/UHF)..2 thru 69
Specifications are subject to change without prior notice.
This document has been published to be used for after sales service only. The contents are subject to change without notice.

SHARP CORPORATION

IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are
thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING
1. For continued safety, no modification of any circuit should be attempted. 2. Disconnect AC power before servicing. 3. Semiconductor heat sinks are potential shock hazards when the chassis is operating. 4. The chassis in this receiver has two ground systems which are separated by insulating material. The nonisolated (hot) ground system is for the B+ voltage regulator circuit. The isolated ground system is for the low B+ DC voltages and the secondary circuit of the high voltage transformer. To prevent electrical shock use an isolation transformer between the line cord and power receptacle, when servicing this chassis.
X-RADIATION AND HIGH VOLTAGE LIMITS
1. Be sure all service personnel are aware of the procedures and instructions covering X-radiation. The only potential source of X-ray in current solid state TV receivers is the picture tube. However, the picture tube does not emit measurable X-Ray radiation, if the high voltage is as specified in the "High Voltage Check" instructions. It is only when high voltage is excessive that Xradiation is capable of penetrating the shell of the picture tube including the lead in the glass material. The important precaution is to keep the high voltage below the maximum level specified. 2. It is essential that servicemen have available at all times an accurate high voltage meter. The calibration of this meter should be checked periodically. 3. High voltage should always be kept at the rated value no higher. Operation at higher voltages may cause a failure of the picture tube or high voltage circuitry and;also, under certain conditions, may produce radiation in exceeding of desirable levels. 4. When the high voltage regulator is operating properly there is no possibility of an X-radiation problem. Every time a color chassis is serviced, the brightness should be tested while monitoring the high voltage with a meter to be certain that the high voltage does not exceed the specified value and that it is regulating correctly. 5. Do not use a picture tube other than that specified or make unrecommended circuit modifications to the high voltage circuitry. 6. When trouble shooting and taking test measurements on a receiver with excessive high voltage, avoid being unnecessarily close to the receiver. Do not operate the receiver longer than is necessary to locate the cause of excessive voltage.

4A 125V

CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4A125V FUSE.
SERVICING OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE When servicing the high voltage system, remove the static charge by connecting a 10k ohm resistor in series with an insulated wire (such as a test probe) between the picture tube ground and the anode lead. (AC line cord should be disconnected from AC outlet.)

1. Picture tube in this receiver employs integral implosion protection. 2. Replace with tube of the same type number for continued safety. 3. Do not lift picture tube by the neck. 4. Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage anode completely.
(Continued) BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)
Before returning the receiver to the user, perform the following safety checks. 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the receiver. 2. Inspect all protective devices such as non-metallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacity networks, mechanical insulators, etc. 3. To be sure that no shock hazard exists, check for leakage current in the following manner. Plug the AC cord directly into a 120 volt AC outlet, (Do not use an isolation transformer for this test). Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15F capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to earth ground. Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity to measure the AC voltage drop across the resistor. Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. AII checks must be repeated with the AC line cord plug connection reversed. (If necessary, a nonpolarized adapter plug must be used only for the purpose of completing these check.) Any current measured must not exceed 0.5 milliamp. Any measurements not within the limits outlined above indicate of a potential shock hazard and corrective action must be taken before returning the instrument to the customer.

1.5k ohm 10W

0.15F TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND
21210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321

SAFETY NOTICE

Many electrical and mechanical parts in television receivers 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 "" and shaded areas in the Replacement Parts Lists and Schematic Diagrams. For continued protection, replacement parts must be identical to those used in the original circuit. The use of 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, X-radiation or other hazards.
LOCATION OF USER'S CONTROL

Front Panel

POWER Press On. Press again
VIDEO/AUDIO IN 2 TERMINALS
REMOTE CONTROL SENSOR MENU Press Accesses MAIN MENU. Press again Exits MAIN MENU. CHANNEL UP/DOWN ( ) Selects next higher channel. ( ) Selects next lower channel.
VOLUME UP/DOWN ( + ) Increases sound. ( ) Decreases sound.
Basic Remote Control Functions
Infrared Transmitter Window POWER On. Press Press again INPUT Press Switches to external video INPUT 1 mode. Press twice Switches to external video INPUT 2 mode. Press 3 times Switches back to the original TV mode. ENTER Used in some instances where a Cable Converter Box requires an enter Command after selecting channels, when using the REMOTE KEYPAD Button. CHANNEL UP/DOWN ( ) Selects next higher channel. ( ) Selects next lower channel. Moves the" "mark on the MENU screens.
REMOTE KEYPAD Accesses any channel from keypad.
FLASHBACK Returns to previous channel.
VOLUME UP/DOWN ( + ) Increases sound. ( ) Decreases sound. Changes or selects the TV adjustments on On-Screen Display.
MUTE Press Mutes sound. Press again Restores sound. MENU Press Accesses MAIN MENU. Exits MAIN MENU. Press again
DISPLAY Press Displays receiving channel for 4 seconds. Press again Removes display. Temporarily displays receiving channel when in Closed Caption mode.
Note: The above shaded buttons on the Remote Control glow in the dark. To use the glow-in-the-dark display on the remote control, place it under a fluorescent light or other lighting. The phosphorescent material contains no radioactive or toxic material, so it is safe to use. The degree of illumination will vary depending on the strength of lighting used. The degree of illumination will decrease with time and depending on the temperature. The time needed to charge the phosphorescent display will vary depending on the surrounding lighting. Sunlight and fluorescent lighting are the most effective when charging the display. The TV set and remote control illustrations and the on-screen displays in this manual may differ from their actual appearance.

INSTALLATION AND SERVICE INSTRUCTIONS
Note: (1) When performing any adjustments to resistor controls and transformers use non-metallic screwdrivers or TV alignment tools. (2) Before performing adjustments, the TV set must be on at least 15 minutes.

CIRCUIT PROTECTION

The receiver is protected by a 4.0A fuse (F701), mounted on PWB-A, wired into one side of the AC line input.

HIGH VOLTAGE CHECK

High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows: 1. Connect an accurate high voltage meter between ground and anode of picture tube. 2. Operate receiver for at least 15 minutes at 120V AC line voltage, with a strong air signal or a properly tuned in test signal. 3. Enter the service mode and select the service adjustment "V11" and Bus data "01" (Y-mute on, CRT Cut Off). 4. The voltage should be below 35kV (at zero beam). If a correct reading cannot be obtained, check circuitry for malfunctioning components. After the voltage test, make Y-mute off to the normal mode.
X-RADIATION PROTECTOR CIRCUIT TEST
After service has been performed on the horizontal deflection system, high voltage system, B+ system, test the X-Radiation protection circuit to ascertain proper operation as follows: 1. Apply 120V AC using a variac transformer for accurate input voltage. 2. Allow for warm up and adjust all customer controls for normal picture and sound. 3. Receive a good local channel. 4. Connect a digital voltmeter to TP653 (P651 Pin3) and make sure that the voltmeter reads 13.85 0.6V DC. 5. Apply external 17.3V DC at TP653 by using an external DC supply, TV must be shut off. 6. To reset the protector, unplug the AC cord (about 1min.) and plug the AC cord power on. Now make sure that normal picture appears on the screen. 7. If the operation of the horizontal oscillator does not stop in step 5, the circuit must be repaired before the set is returned to the customer.
For adjustments of this model, the bus data is converted to various analog signals by the D/A converter circuit. Note: There are still a few analog adjustments in this series such as focus and master screen voltage. Follow the steps below whenever the service adjustment is required. See "Table-B" to determine, if service adjustments are required.

1. Service mode

Before putting unit into the service mode, check that customer adjustments are in the normal mode. Use the reset function in the video adjustment menu to ensure customer controls are in their proper (reset) position.
4. Donau and Main Micon version Check
1. After television power on, press test key ox31 and the following screen will display.
VERSION NUMBER ANALOG : 1.10 - 34 : 1.21 : 0400140P-105
2. Service number selection
Once in the service mode, press the Ch-up or Chdown button on the remote controller or at the set. The service adjustment number will vary in increments of one, from "V01" to "M05". Select the item you wish to adjust.

DIGITAL DIGITAL OS

3. Data number selection
Press the Vol-up or Vol-down button to adjust the data number.
* ANALOG RH-IXB644WJQZQ IC software version * DIGITAL Donau IC software inside Tuner RTUDAA001WJQZ 2. The version display screen will disappear after 30 second or pressing any key (except test key) will cancel the version display.
To enter the service mode and exit service mode.
To enter the service mode manually just press and hold the Vol-down and Ch-up buttons at the same time, plug the AC cord into a wall socket. Now the TV set is switched on and enters the service mode. To exit the service mode, turn the television off by pressing the power button.
DATA NUMBER SERVICE ADJUSTMENT NUMBER CHANNEL

3F(063)

Figure A.

A. VCJ IC ADJUSTMENT

SERVICE NUMBER
V01 V02 V03 V05 V06 V07 V08 V09 V10 V11 V12 V13 V14 V15 V16 V17 V19 V24 V25 V26 V27 V28 V29 V30 V31 V34 V36 V37 V38 V39 V40 V41 V42 V43 V44 V45 V46 V47 V48 V49 V50 V51 V52 V53 V59 V60 V61 V62 V63 V64 V65 V66 V67 V68 V69 V70 V71 V72 V73 V74 V75 V76 V77 V78 V79 V80 V81 V82 V83 V84 R01 R03

ADJUSTMENT ITEM

RANGE PICTURE TINT COLOR BRIGHT R CUT-OFF G CUT-OFF B CUT-OFF G/R DRIVE B DRIVE Y-MUTE/V-STOP SHARP DC RESTORATION BLACK STRETCH ABL START POINT ABL GAIN POINT ENERGY SAVE LOW-G LOW-B ML-G ML-B HIGH-G HIGH-B WPL RGB CONTRAST VSM GAIN BPF/TOF-INPUT CORING VSM PHASE COLOR SHARP-INPUT TINT-INPUT PICTURE-COMPONENT TINT-COMPONENT COLOR-COMPONENT BRIGHT-COMPONENT R CUT OFF-COMPONENT G CUT OFF-COMPONENT B CUT OFF-COMPONENT G/R DRIVE-COMPONENT B DRIVE-COMPONENT SHARP-COMPONENT TINT-S C-TRAP AUTO FRESH SHARP P F CD MATRIX B-Y ATT R-Y ATT CD MATRIX-COMPONENT B-Y ATT-COMPONENT R-Y ATT-COMPONENT BUZZ RGB ABCL PICTURE-VCOMP COLOR-VCOMP BRIGHT-VCOMP PICTURE-DTV TINT-DTV COLOR-DTV BRIGHT-DTV R CUT OFF-DTV G CUT OFF-DTV B CUT OFF-DTV G/R DRIVE-DTV B DRIVE-DTV SHARP-DTV CD MATRIX-DTV B-Y ATT-DTV R-Y ATT-DTV RF-AGC RF-AGC REF

2C 3E 01 2F Copy of V01+01h Copy of V05-01h Copy of V06 Copy of V07 Copy of V08 Copy of V09 Copy of V00 AA
D01 D02 D03 D04 D05 D06 D07 D08 D10 D11 D12 D13 D14 D15 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31 D32 D33 D34
RANGE V POSITION H POSITION V SIZE H SIZE V-LINEARITY V-S CORRECTION EW PARABOLA EW TRAPEZIUM AFC GAIN V EHT H EHT EW CORNER EW CORNER BOTTOM NOISE DET LEVEL V CENTERING V-AGC V POSITION-VCOMP H POSITION-VCOMP V SIZE-VCOMP H SIZE-VCOMP V-LINEARITY-VCOMP V-S CORRECTION-VCOMP EW PARABOLA-VCOMP EW TRAPEZIUM-VCOMP V EHT-VCOMP H EHT-VCOMP EW CORNER-VCOMP EW CORNER BOTTOM-VCOMP V BLK UPPER-VCOMP V BLK LOWER-VCOMP V CENTERING-VCOMP
INITIAL VALUE 00 (00h) 15 (0Fh) 89 (59h) 36 (24h) 08 (08h) 12 (0Ch) 43 (2Bh) 36 (24h) 02 (02h) 06 (06h) 06 (06h) 08 (08h) 50 (32h) 00 (00h) 36 (24h) 00 (00h) 00 (00h) 15 (0Fh) 52 (34h) 36 (24h) 08 (08h) 10 (0Ah) 22 (16h) 35 (23h) 06 (06h) 06 (06h) 12 (0Ch) 50 (32h) 02 (02h) 02 (02h) 36 (24h)
0-7 (00h-07h) 0-31 (00h-1Fh) 0-127 (00h-7Fh) 0-63 (00h-3Fh) 0-15 (00h-0Fh) 0-15 (00h-0Fh) 0-63 (00h-3Fh) 0-63 (00h-3Fh) 0-3 (00h-03h) 0-7 (00h-07h) 0-7 (00h-07h) 0-31 (00h-1Fh) 19-81 (13h-51h) 0-3 (00h-03h) 0-63 (00-3Fh) 0-1 (00h-01h) 0-7 (00h-07h) 0-31 (00h-1Fh) 0-127 (00h-7Fh) 0-63 (00h-3Fh) 0-15 (00h-0Fh) 0-15 (00h-0Fh) 0-63 (00h-3Fh) 0-63 (00h-3Fh) 0-7 (00h-07h) 0-7 (00h-07h) 0-31 (00h-1Fh) 19-81 (13h-51h) 0-3 (00h-03h) 0-3 (00h-03h) 0-63 (00h-3Fh)
0B 06 0F 16:9 Format 16:9 Format 16:9 Format 16:9 Format 16:9 Format 16:9 Format 16:9 Format 16:9 Format 16:9 Format 16:9 Format 16:9 Format Offset toward D30 16:9 Format 16:9 Format 16:9 Format "D2" "D3" -30 "D4" 08 0A 15 "D8" "D18"

B. SPECIAL SETTING

EX1 EX2 EX3 EX4 EX5 EX6 EX7 EX8
RANGE FAO VOLUME CC-POSITION INT A-ATT TUNER data Think chip-Slice LEVEL RLY DELAY TIME ADG ON TIME
INITIAL VALUE 36 (24h) 27 (1Bh) 122 (7Ah) 90 (5Ah) 00 (00h) 54 (36h) 00 (00h) 10 (0Ah)

24 1C 7A 5A 00 0A

0-50 (00h-32h) 0-127 (00h-7Fh) 0-255 (00h-FFh) 0-127 (00h-7Fh) 0-3 (00h-03h) 0-255 (00h-FFh) 0-255 (00h-FFh) 0-255 (00h-FFh)
Interrupt period adjustment
For the power control For the power control

C. OPTION SETTING

OP1 OP2 OP3
RANGE OPTION1 OPTION2 OPTION3
INITIAL VALUE 213 (D5h) 60 (3Ch) 143 (8Fh)
0-255 (00h-FFh) 0-255 (00h-FFh) 0-255 (00h-FFh)

D. SOUND ADJUSTMENT

M01 M02 M03 M04 M05
RANGE INPUT LEVEL MTS VCO FILTER WIDEBAND SPECTRAL
INITIAL VALUE 07 (07h) 38 (26h) 36 (24h) 28 (1Ch) 23 (17h)
0-15 (00h-0Fh) 0-63 (00h-3Fh) 0-63 (00h-3Fh) 0-63 (00h-3Fh) 0-63 (00h-3Fh)
Holding down both the VOL-up and CH-up buttons on the TV set at service mode for more than 2 seconds will automatically write the above initial values into IC2101.
PART REPLACED IC2001 IC201 IC2101 CRT IC3001 ADJUSTMENT NECESSARY UNNECESSARY X X X X X NOTES Data is stored in IC2101. The adjustment is needed to compensate for characteristics of parts including IC201 and MTS level (M01). Holding down both the VOL-up and CH-up buttons on the TV set in the service mode for more than 2 seconds will automatically write the above initial values into IC2101 Then perform a complete adjustment. Adjust items related to picture tube only. Adjust items related to MTS only (M01~M05).

SERVICE ADJUSTMENT

RF AGC Adjustment
1. Receive a good local channel. 2. Enter the service mode and select the service adjustment "R01". 3. Set the data value to point where no noise or beat appears. 4. Select another channel to confirm that no noise or beat appears. Note 1 : You will have to come out of the service mode to select another channel. Note 2 : Setting the data to "00" will produce a black raster.

White Balance Adjustment

1. Receive a good local channel. 2. Enter the service mode and select the service adjustment "V03" and set to "00" (minimum color) (Record original data code under adjustment "V03" before changing). "V03" does not have to be adjusted, if you selected a B/W picture or monoscope pattern. 3. Alternately adjust the service adjustment data of "V09" and "V10" until a good grey scale with normal whites is obtained. (RF Input) 4. For component input, the data value of "V49" and "V50" is adjusted to follow the data value of "V09" and "V10" respectively. 5. For digital RF input, the data value of "V79" and "V80" is adjusted to follow the data value of "V09" and "V10" respectively. 6. Select the service adjustment "V03" and reset data to obtain normal color level.

Screen Adjustment

1. Receive a good local channel. 2. Enter the service mode and select the service adjustment "V03" and set the data value to "00" to set the color level to minimum. (Record original data code under adjustment "V03" before changing) You may skip this step, if you selected a B/W picture or monoscope pattern. 3. Select the service adjustment "V11" and adjust the data value to "01", this turn off the luminance signal (Y-mute). 4. Adjust the master screen control until the raster darkness to the point where raster is barely seen. 5. Adjust the service adjustments "V06" red, "V07" green and "V08" blue to obtain a good grey scale with normal whites at low brightness level. 6. Select the service adjustment "V11" and reset data to "00". Select the service adjustment "V03" and reset data to obtain normal color level. 7. For component input, the data value of "V46" red, "V47" green and "V48" blue is adjusted to follow the data value of "V06", "V07" and "V08" respectively. 8. For digital RF input, the data value of "V76" red, "V77" green and "V78" blue is adjusted to follow the data value of "V06", "V07" and "V08" respectively. 9. Reset the master screen control to obtain normal brightness range.

Sub-picture and Sub-Bright Adjustments
1. Receive the window pattern signal. RF INPUT (TU1101) 2. Get into service adjustment data "V01" and "V05" and set the luminance as shown in figure "A" and "B" as below respectively. COMPONENT INPUT 3. Get in service adjustment data "V42" and "V45" and set the luminance as shown in figure "A" and "B" as below respectively.
LUMINESCENCE CONFIRMATION A: 9210cd/m2 B: 1.100.5cd/m2 DIGITAL RF INPUT (TU1101) 4. Get in service adjustment data "V72", "V75" and set the luminance as shown in figure "A" and "B" as above respectively.

Sub-Tint Adjustment

1. Receive the half color bar signal. RF INPUT (TU1101) 2. Get into Y-Mute by R/C, or by setting the "V11" bus data to "01". 3. Vary the "V02" bus data until the waveform becomes as stated below. Component Input and Digital RF Input (TU1101) 4. Input data of "V43" same as "V02". 5. Input data of "V73" same as "V02". 2. Enter the service mode and select the service adjustment "D03" for V-size. 3. Adjust the "D03" bus data to get the proper V-size. 4. For V-linearity adjustment, select data bus "D05" and adjust to get the proper vertical linearity. (SCREEN FORMAT 16:9) 5. Input data of "D22" to mines 30 step from "D03 data. (V-SIZE) 6. Input data of "D24" same as "D05" data. (V-LIN) Note: Aging for 10 min before adjustment. After the adjustment of V-center and V-size, readjustment for this V-line.
B-AMP Base waveform in step (TP47B)
Vertical Phase Adjustment
(SCREEN FORMAT 4:3) 1. Enter the service mode and input data of 00h on "D01". 2. Adjust "D18" data value so that picture is centered. (SCREEN FORMAT 16:9) 3. Input data of "00h" on "D20". 4. Input data of "D34" same as "D18" data.

Sub-Color Adjustment

1. Receive a good local channel. 2. Make sure the customer color control is set to center position. RF INPUT (TU1101) 3. Enter the service mode and select service adjustment "V03". 4. Adjust "V03" data value to obtain a normal color level. Component Input 5. Repeat step 3~4, and change "V03" to "V44". Digital RF Input (TU1101) 6. Enter the service mode and select adjustment "V74". 7. Enter the value of "V44" data and plus (20h) or plus 32 step of "V44" data. (V74=V44+20h)
Horizontal Position Adjustment
1. Receive a good local channel. (SCREEN FORMAT 4:3) 2. Enter the service mode and select the service adjustment "D02". 3. Adjust "D02" data value so that picture is centered. (SCREEN FORMAT 16:9) 4. Input data of "D21" same as "D02" data.

Horizontal-Size Adjustment
1. Receive a good local channel. (SCREEN FORMAT 4:3) 2. Enter the service mode and select the service adjustment "D04" for H-size. 3. Adjust the "D04" bus data to get the proper H-size. (SCREEN FORMAT 16:9) 4. Input data of "D23" same as "D04" data.

Focus Adjustment

1. Receive a good local channel. 2. Adjust the FOCUS VR of the flyback transformer to make the image as fine as possible.
C. C Display Position Adjustment
1. Receive the lion head pattern signal. 2. Select "EX2" to display the text box. 3. Adjust the "EX2" bus data to let the text box displayed in the center.

DISPLAY OF TEXT BOX

EW-Parabola
1. Receive a good local channel. (SCREEN FORMAT 4:3) 2. Enter the service mode and select the service adjustment "D07" for EW parabola. 3. Adjust the "D07" bus data to get the proper vertical straight line for both left and right side. (SCREEN FORMAT 16:9) 4. Input data of "D26" to mines 15 step from "D07" data.

TEXT BOX

| A-B | / 2

EW-Trapezium

1. Receive a good local channel. (SCREEN FORMAT 4:3) 2. Enter the service mode and select the service adjustment "D08" for EW-Trapezium. 3. Adjust the "D08" bus data to get the best position display. (SCREEN FORMAT 16:9) 4. Input data of "D27" same as "D08" data.
< SPEC INSPECTION:| A-B | / 2 = 5mm
Vertical-Size and Linearity Adjustments
1. Receive a good local channel. (SCREEN FORMAT 4:3)

MTS ADJUSTMENT

MTS Level Adjustment
1. Set the sound volume above 1. Monoral signal: 400Hz, 100% modulation 2. Confirm "EX4" data is "5Ah". 3. Vary the "M01" bus data until the voltage to pin (39) of IC3001 to become the value as stated below. SETTING VOLTAGE ADJ spec : 49010mVrms CHK spec: 49020mVrms

Separation Adjustment

1. Input "SIGNAL 1" and vary the "M04" bus data to get the minimun AC voltage to pin (39) of IC3001. 2. Input "SIGNAL 2" and vary the "M05" bus data to get the minimun AC voltage to pin (39) of IC3001. SIGNAL 1: 300Hz, 30% modulation, Lch only, NR-ON SIGNAL 2: 3kHz, 30% modulation, Lch only, NR-ON Note: SIGNAL 1 Adj. for widebando SIGNAL 2 Adj. for spectral Check the output of the speaker at the maximum volume as stated below. Confirmation spec: ADJ spec: above 25 dB CHK spec: above 20 dB

CHASSIS LAYOUT

BLOCK DIAGRAM
DESCRIPTION OF SCHEMATIC DIAGRAMS
NOTES: 1. The unit of resistance "ohm" is omitted. (K=kW=1000W, M=MW) 2. All resistors are 1/16 watt, unless otherwise noted. 3. All capacitors are F, unless otherwise noted. (P=pF=F) 4. (G) indicates 2% tolerance may be used. 5. indicates line isolated ground. VOLTAGE MEASUREMENT CONDITIONS: 1. All DC voltages are measured with DVM connected between points indicated and chassis ground, line voltage set at 120V AC and all controls set for normal picture unless otherwise indicated. 2. All voltages measured with 1000 V B & W or Color signal. WAVEFORM MEASUREMENT CONDITIONS: 1. Photographs taken on a standard gated color bar signal, the tint setting adjusted for proper color. The wave shapes at the red, green and blue cathodes of the picture tube depend on the tint, color level and picture control. 2. indicates waveform check points (See chart, waveforms are measured from point indicated to chassis ground.)

AND SHADED ( ) COMPONENTS = SAFETY RELATED PARTS. MARK= X-RAY RELATED PARTS.
This circuit diagram is a standard one, printed circuits may be subject to change for product improvement without prior notice.

WAVEFORMS

11.0 Vp-p

22.1 Vp-p

3 1.0Vp-p

40.75 Vp-p

55.0 Vp-p

65.0 Vp-p

70.85 Vp-p

812.5 Vp-p

932 Vp-p

056 Vp-p

q2.0 Vp-p

w0.8 Vp-p

e160 Vp-p

r14 Vp-p

t1150 Vp-p

y450 Vp-p

u250 Vp-p

i29.5 Vp-p

o3.0 Vp-p

p3.0 Vp-p

a3.0 Vp-p

s130 Vp-p

d125 Vp-p

f130 Vp-p

SCHEMATIC DIAGRAM: CRT Unit
SCHEMATIC DIAGRAM: MAIN-1 Unit
PRINTED WIRING BOARD ASSEMBLIES
PWB-A: MAIN Unit (Wiring Components Side)
PWB-A: MAIN Unit (Components side)
PWB-B: CRT Unit (Wiring Side)
PWB-D: 2-LINE Y/C Unit (Wiring Side)
PWB-D: 2-LINE Y/C Unit (Chip Parts Side)

Ref. No. Part No.

Description

PARTS LIST

PARTS REPLACEMENT
Replacement parts which have these special safety characteristics identified in this manual; electrical components having such features are identified by and shaded areas in the Replacement Parts Lists and Schematic Diagrams. The use of a substitute replacement part which dose no have the same safety characteristic as the factory recommended replacement parts shown in this service manual may create shock, fire or other hazards.

PWB-A: DUNTKD571WEA7

MAIN UNIT
X X X X X X X X X X X X X X X X X X X X X
NOTE:THE PARTS HERE SHOWN ARE SUPPLIED AS AN ASSEMBLY BUT NOT INDEPENDETLY
TU1101 RTUDAA001WJQZ IC101 IC201 IC361 IC501 IC602 IC701 IC702 IC703 IC751 IC900 IC1101 IC1102 IC1103 IC1104 IC1403 IC2001 IC2040 IC2101 IC3001 IC3002 Q201 Q361 Q401 Q402 Q451 Q460 Q601 Q602 Q672 Q673 Q701 Q751 Q754 Q755 Q756 Q757 Q758 Q781 Q782 Q802 Q901 Q902 Q903 Q904 Q905 Q906 Q907 Q908 Q910 Q2041 Q2042 Q2060 Q2201 Q2211 D103 D361 D362 D410 VHIPQ050ES1-1+ VHITB1253AN-1 VHIAN5277//-1 VHILA78041+-1 VHIBA15218F2EY VHITEA1533A-1 RH-FXA003WJZZ VHISE125N++-F VHIPQ09RDA1-1 VHICXA2089Q-2Y VHIPQ1CZ41H-1Y VHIBA00BC0W-1S VHINJ2584AM-1Y VHIBA00BC0W-1S VHIPQ05RDA1-1 RH-IXB644WJQ1Q VHIKIA7045A-1+ VHIBR24L16F-1Y VHICXA2194Q-1Y VHIBA15218F2EY VS2SC2735//1EY VS2SB709AR/-1Y VS2SD601AR/-1Y VS2SB709AR/-1Y VS2SA1266-Y-1+ VSRT1N441C/-1Y VS2SC2482//-1+ VS2SD2646++1E VS2SA1266-Y-1+ VS2SD1830//1E VSSPA11N603-1 VS2SC3198-G-1+ VS2SC3198-G-1+ VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SC3198-G-1+ VS2SA1266-Y-1+ VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SB709AR/-1Y VS2SB709AR/-1Y VS2SB709AR/-1Y VS2SB709AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y VS2SD601AR/-1Y Tuner PQ050ES1MXP TB1253AN AN5277 LA78041-E BA15218F TEA1533AP PC123Y82 SE125N PQ090RDA1SZ CXA2089Q-6T PQ1CZ41H2ZPH BA00BC0WT-V5 NJ2584AM BA00BC0WT-V5 PQ050RDA1SZ IC KIA7045AP BR24L16F CXA2194Q BA15218F 2SC2735 2SB709AR 2SD601AR 2SB709AR 2SA1266(Y) RT1N441C 2SC2482 2SD2646++ 2SA1266(Y) 2SD1830 SPA11N603 2SC3198-G 2SC3198-G 2SD601AR 2SD601AR 2SC3198-G 2SA1266(Y) 2SD601AR 2SD601AR 2SD601AR 2SD601AR 2SD601AR 2SD601AR 2SD601AR 2SD601AR 2SD601AR 2SD601AR 2SB709AR 2SB709AR 2SB709AR 2SB709AR 2SD601AR 2SD601AR 2SD601AR BY AD AT AK AH AD AH AC AF AE AN AG AF AH AF AF BA AD AE AS AD AB AB AB AB AB AA AC AK AB AF AM AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB AB

R849 R850 R851 R852 R854 R855 R856 R857 R858 R859 R860 R861 R862 R863 R864 R865 R868 R870 R871 R872 R873 R874
Carbon Carbon Carbon Carbon Carbon Carbon Carbon Carbon Carbon M-Ox. M-Ox. M-Ox. M-Ox. M-Ox. M-Ox. Carbon Carbon Carbon Carbon Carbon Carbon Carbon
AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA
X X X X X X X X X X X X X 1k 1.5k 1.5k 1k 00 3.3k 00 150
PACKING PARTS (NOT REPLACEMENT ITEM)
AA AA AA AA AA AA AA AA AA AA AA AA AD 1 1-1 1-2 1-3 1-4 1-5 AL AL AE AL AD AD AE AA AA AB AA AA AA CCABAB257WEH0 Not Available HBDGB1009MESB GCOVA0119GJKA JBTN-0119GJKE JBTN-0120GJKE X X X X X Front Cabinet Assembly Front Cabinet BADGE (SHARP PLASTIC) RC/LED Cover Button, Power Button, Menu, CH-Up/Down, VOL-Up/Down Rear Cabinet BM AD AD AH AK SPAKCC441WJZZ SPAKX0128GJZZ SPAKP0110GJZZ SSAKA0101GJZZ X X X X Packing Case Buffer Material Wrapping Sheet Wrapping Sack AZ AV AG AC
R1401 R1402 R1403 R1415 R1416 R1417 R1421 R1423 R1427 R1428 R1429 R1430 P1401 VRS-CY1JF821JY VRS-CY1JF000JY VRS-CY1JF361JY VRS-CY1JF391JY VRS-CY1JF102JY VRS-CY1JF152JY VRS-CY1JF152FY VRS-CY1JF102FY VRS-CY1JF000JY VRD-RA2BE332JY VRS-CY1JF000JY VRS-CY1JF151JY QPLGZ0810CEZZ 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/8W 1/16W 1/16W M-Ox. M-Ox. M-Ox. M-Ox. M-Ox. M-Ox. M-Ox. M-Ox. M-Ox. Carbon M-Ox. M-Ox.

plug 32"

CABINET PARTS
SP1 SP2 VSP1206PB69WA VSP1206PB69WA QCNW-0136GJZZ QCNW-0237MEZZ QCNW-B126WJZZ QCNW-B238WJZZ QCNW-E217WJPZ VW7UGB5-050KK VW7UGB4-040KK VW7UGB2-120KK VW7UGB6-060KK VW7UGB8-080KK VW7UGB4-040KK X X X X X X X X X X X X X Speaker (L) Speaker (R) WIRE SPEAKER DY WIRE Lead Wire (CJ) 470mm Lead Wire (DT) WIRE (DT) Lead Wire Lead Wire Lead Wire Lead Wire Lead Wire Lead Wire

GCABBA722WJKA

J1 J3 J4 J5 J6 J7

CABINET PARTS LOCATION

SUPPLIED ACCESSORIES
RRMCGA450WJSA TINS-C218WJZZ TGAN-A216WJN1 X X X Infrared Remote Control Unit AM Operation Manual AF Guarantee Card AC

PACKING OF THE SET

Polyethylene Bag
ACCESSORIES Polyethylene Mat

Packing Foam

Packing Case
Use tape to fix the top side of packing case.
Use 12 staples to fix the bottom side of packing case.
COPYRIGHT 2006 BY SHARP CORPORATION ALL RIGHTS RESERVED.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
QRC0028-U January. 2006 Modify : SEMEX Design and Production Information Design base : SEM Production : SEMEX
SHARP ELECTRONICA MEXICO S. A. DE C. V. Quality & Reliability Control Center Blvd. SHARP No. 3510 Parque Industrial Rosarito Playas de Rosarito, Mxico B. C. 22710