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14

27U-S60
27U-S100

DESCRIPTION OF SCHEMATIC DIAGRAM

NOTES:

1. The unit of resistance "ohm" is omitted.

(K=k

=1000

, M=M

)

2. All resistors are 1/16 watt, unless otherwise noted.
3. All capacitors are µ F, unless otherwise noted.

(P=pF=µµF)

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 1000µ 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.)

å 

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

Summary of Contents for 27U-S100

Page 1: ...ed for after sales service only The contents are subject to change without notice MODELS POWER INPUT 120 V AC 60 Hz POWER RATING 105 W PICTURE SIZE 2 187cm2 339sq inch CONVERGENCE Magnetic SWEEP DEFLECTION Magnetic FOCUS Hi Bi Potential Electrostatic INTERMEDIATE FREQUENCIES Picture IF Carrier Frequency 45 75 MHz Sound IF Carrier Frequency 41 25 MHz Color Sub Carrier Frequency 42 17 MHz Nominal AU...

Page 2: ...on 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 prob...

Page 3: ...acity 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 15µF capacitor in series with all exposed metal cabinet parts and a known earth ground such...

Page 4: ...h to external video INPUT 2 mode Press 3 times Switch back to the original TV mode CHANNEL UP DOWN Selects next higher channel Selects next lower channel Moves the mark of the MENU screen MENU Press Accesses MAIN MENU Press again Exits MAIN MENU DISPLAY Press Displays receiving channel for four seconds Press again Removes display Temporarily displays receiving channel when in Closed Caption mode B...

Page 5: ... Press Mutes sound Press again Restores sound CLOSED CAPTION appears when sound is muted POWER Press On Press again Off REMOTE KEYPAD Accesses any channel from keypad FLASHBACK Returns to previous channel PERSONAL PREFERENCE With the Personal Preference buttons you can program your favorite programs by using the 4 categories A B C and D The channels can be accessed quickly by using these buttons V...

Page 6: ...operation of the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer 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...

Page 7: ...the video adjustment menu to ensure customer control are in their proper reset position 2 Service number selection In the service mode you will see the window screen as window 1 There are 4 adjustment categories 2DEF 3SIGNAL 4FEATURE 5FIX VALUE as show in Figure A Press CH UP DOWN button for selection and enter by VOL UP or VOL DOWN Press CH UP DOWN button to select the adjustment item and VOL UP ...

Page 8: ...PTION 2 00 FF 07 27 F03 E SAVE 00 3F 2A 2A F04 TUNER SETUP 00 01 00 00 F05 R TONE RD 00 7F 03 03 F06 R TONE BD 00 7F 7C 7C F07 B TONE RD 00 7F 00 00 F08 B TONE BD 00 7F 04 04 F09 FM LEVEL 00 1F 16 16 F10 AFC GAIN 00 01 00 00 F11 G DRIVE 00 0F 0F 0F F12 FBT BLK SW 00 01 01 01 F13 V COMP 00 07 07 07 F14 OSD CONT 00 03 01 01 F15 SHARPNESS 00 3F 0D 2 F16 FLT SYS 00 07 01 01 F17 KILLER OP 00 07 02 02 F...

Page 9: ...VEL 00 07 03 Must be 4 S03 Y MUTE 00 03 00 01 Y MUTE 02 V STOP Y MUTE 03 Activate color killer circuit S04 SUB BIAS 00 FF 30 Must be 30 S05 R BIAS 00 FF 00 S06 G BIAS 00 FF 00 S07 B BIAS 00 7F 00 S08 R DRIVE 00 7F 53 S09 B DRIVE 00 7F 53 S10 CONTRAST 00 7F 5A S11 TINT 00 7F 40 S12 COLOR 00 7F 40 S13 BRIGHTNESS 00 7F 40 S14 BRIGHTNESS 2 00 7F 40 SERVICE POSITION ADJUST ITEM DATA RANGE INITIAL VALUE...

Page 10: ...lue to obtain 2 35 volts as shown in Figure B 6 Adjust the master screen control until the raster darkens to the point where raster is barely seen 2 35 Vdc GND 7 Adjust the service adjustment S05 red S06 green S07 blue to obtain a good grey scale with normal white at low brightness level 8 Select the service a adjustment S03 and reset data to 00 Select the service adjustment S12 and reset data to ...

Page 11: ...e rms voltmeter is minimum 5 Receive the following composite stereo signal 2 Stereo signal 30 modulation left channel only noise reduction on 3kHz 6 Enter the service mode and select the service adjustment M05 7 Adjust the data until the AC voltage reading of the rms voltmeter is minimum 8 Take the above steps 1 thru 7 again for fine adjustment Vertical Size V Linearity and V S Correction Adjustme...

Page 12: ...12 6 5 4 3 2 1 A B C D E F G H 27U S60 27U S100 CHASSIS LAYOUT ...

Page 13: ...13 6 5 4 3 2 1 A B C D E F G H 27U S60 27U S100 BLOCK DIAGRAM ...

Page 14: ...t for normal picture unless otherwise indicated 2 All voltages measured with 1000µ 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 cha...

Page 15: ...15 6 5 4 3 2 1 A B C D E F G H 27U S60 27U S100 SCHEMATIC DIAGRAM CRT Unit ...

Page 16: ...17 27U S60 27U S100 16 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H DUNTKA462WEA1 SCHEMATIC DIAGRAM MAIN 1 Unit ...

Page 17: ...19 27U S60 27U S100 18 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H DUNTKA462WEA1 SCHEMATIC DIAGRAM MAIN 2 Unit ...

Page 18: ...20 6 5 4 3 2 1 A B C D E F G H 27U S60 27U S100 PWB A MAIN Unit Wiring Side PRINTED WIRING BOARD ASSEMBLIES ...

Page 19: ...21 6 5 4 3 2 1 A B C D E F G H 27U S60 27U S100 PWB A MAIN Unit Chip Parts Side ...

Page 20: ...22 6 5 4 3 2 1 A B C D E F G H 27U S60 27U S100 PWB B CRT Unit Wiring Side ...

Page 21: ...AK å IC501 VHiLA7841 1 J LA7841 AM å IC701 VHiTEA1507 1 J TEA1507P N1 AL å IC702 RH FX0034CEZZ J PC817 AE or RH FX0002GEZZ or RH FX0029CEZZ å IC703 VHiSE125N 1 X SE125N AK å IC751 VHiKA7809AP 1 J KA7809AP AE å IC771 VHiKA7805AP 1 J KA7805AP AE or VHiTA7805S 1 IC1401 VHiMM1111XF1E J MM1111XFBE AE IC1403 VHiM52055FP 1 J M52055FP AH IC2001 RH iX3528CEZZ X TMPA8700CPF 3B AT IC2040 VHiPST994C 1 J PST99...

Page 22: ...H DX0279CEZZ å D703 RH DX0154CEZZ J Diode AC or RH DX0490CEZZ or RH DX0279CEZZ å D704 RH DX0154CEZZ J Diode AC or RH DX0490CEZZ or RH DX0279CEZZ D707 VHD1SS119 1 J Diode AB or VHD1SS244 1 D708 VHD1SS119 1 J Diode AB or VHD1SS244 1 å D709 RH DX0229CEZZ J Diode AF å D712 RH DX0532CEZZ X Diode AF or RH DX0302CEZZ or RH DX0468CEZZ or RH DX0487CEZZ D725 RH DX0131CEZZ J Diode AC or RH DX0468CEZZ D726 VH...

Page 23: ...4 VCKYCY1EF104Z J 0 1 25V Ceramic AA å T602 RTRNF0049MEZZ X H Volt Transformer AY or RTRNFA004WJZZ å T702 RTRNW0001GJZZ X Transformer AN CAPACITORS EL Electrolytic M Poly Metalized Polypro Film C51 VCEA0A1AW108M J 1000 10V EL AC C53 VCEA0A1HW105M J 1 50V EL AB C54 VCEA0A1HW475M J 4 7 50V EL AB C101 VCEA0A1CW476M J 47 16V EL AB C201 VCKYCY1HF103Z J 0 01 50V Ceramic AA C202 VCKYCY1HF103Z J 0 01 50V ...

Page 24: ...6W M Ox AA R304 VRS CY1JF102J J 1k 1 16W M Ox AA R305 VRS CY1JF152J J 1 5k 1 16W M Ox AA R306 VRS CY1JF333J J 33k 1 16W M Ox AA R308 VRS CY1JF101J J 100 1 16W M Ox AA R354 VRS CY1JF103J J 10k 1 16W M Ox AA R355 VRS CY1JF000J J 0 1 16W M Ox AA R357 VRS CY1JF822J J 8 2k 1 16W M Ox AA R359 VRS CY1JF000J J 0 1 16W M Ox AA R401 VRS CY1JF101J J 100 1 16W M Ox AA R402 VRS CY1JF101J J 100 1 16W M Ox AA R4...

Page 25: ...82J J 6 8k 1 8W Carbon AA R2025 VRD RA2BE682J J 6 8k 1 8W Carbon AA R2026 VRD RA2BE682J J 6 8k 1 8W Carbon AA R2027 VRD RA2BE682J J 6 8k 1 8W Carbon AA R2028 VRD RA2BE102J J 1k 1 8W Carbon AA R2029 VRS CY1JF103J J 10k 1 16W M Ox AA R2032 VRD RA2BE471J J 470 1 8W Carbon AA R2033 VRD RA2BE684J J 680k 1 8W Carbon AA R2034 VRS CY1JF684J J 680k 1 16W M Ox AA R2040 VRD RA2BE102J J 1k 1 8W Carbon AA R204...

Page 26: ... Carbon AA R872 VRD RA2BE221J J 220 1 8W Carbon AA å R873 VRS VV3LB123J J 12k 3W M Ox AB R874 VRD RM2HD222J J 2 2k 1 2W Carbon AA R881 VRD RA2BE102J J 1k 1 8W Carbon AA R882 VRD RA2BE331J J 330 1 8W Carbon AA R883 VRD RA2BE561J J 560 1 8W Carbon AA R884 VRD RA2BE152J J 1 5k 1 8W Carbon AA R895 VRD RA2BE470J J 47 1 8W Carbon AA MISCELLANEOUS PARTS P851 QPLGN0541CEZZ J Plug 5 pin GBN AB P852 QPLGN04...

Page 27: ...GJZZ X Spacer AD QCNW 0134MEZZ X Connecting Cord SP AF QCNW 0166MEZZ X Connecting Cord GBN AE QCNW 0167MEZZ J Connecting Cord YBN AE TCAUH3045GJZZ X Caution Label AB TLABM0002GJZZ X Model Label AB VSP9050PB40YA X Speaker x2 9x5cm 32ohm AK XTASD30P12000 J Screw x4 AA XTASD40P20000 J Screw x6 AA TiNS 7653GJZZ X Operation Manual 27U S60 AD TiNS A076WJZZ X Operation Manual AH 27U S100 RRMCG1324CESA J ...

Page 28: ... Front Cabinet Ass y BC 27U S60 1 CCABAA024WEH0 X Front Cabinet Ass y BC 27U S100 1 1 Not Available Front Cabinet 1 2 GCOVA0121GJSA X RC LED Cover AF 1 3 HBDGB1009MESB X SHARP Badge AG 1 4 JBTN 0138GJKA X Button Power AL 1 5 JBTN 0139GJSA X Button CH Up Down AL VOL Up Down Menu 2 GCABB0153GJKA X Rear Cabinet AY CABINET PARTS ...

Page 29: ...cking Case MARK Not replacement items FRONT Buffer Material Polyethylene Mat Polyethylene Bag Operation Manual Infrared R C unit Batteries REAR Use tape to fix the top side of packing case Use 12 staples to fix the bottom side of packing case ...

Page 30: ... 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 D SEM P SEMEX TQ1314 S May 2002 Printed in Japan MI KG SHARP CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan ...

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