Service manual

ManualsBrandsSharp ManualsTV27J-S100

- 1 -

27J-S100/180/260

CJ27S10/26

SERVICE MANUAL

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.

COLOR TELEVISION

Chassis No. SN-71

Specifications are subject to change without prior

notice.

POWER INPUT............................................... 120 V AC 60 Hz

POWER RATING ............................................................ 126 W

PICTURE SIZE ...................................... 2,193cm2(340sq 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)

AUDIO POWER .........................................................................

OUTPUT RATING ........................... 2.6W (at 10% distortion)

SPEAKER

SIZE ................................................................... 8cm(Round)

VOICE COIL IMPEDANCE .......................... 8ohm at 400 Hz

ANTENNA INPUT IMPEDANCE

VHF/UHF ................................................ 75 ohm Unbalanced

TUNING RANGES

VHF-Channels ........................................................... 2thru 13

UHF-Channels ........................................................ 14thru 69

CATV Channels .......................................................1thru 125

............................................................... (EIA, Channel Plan)

ELECTRICAL SPECIFICATIONS

CONTENTS

Page

» ELECTRICAL SPECIFICATIONS ............................................................................................. 1

» IMPORTANT SERVICE SAFETY PRECAUTION ..................................................................... 2

» LOCATION OF USER'S CONTROL.......................................................................................... 6

» INSTALLATION AND SERVICE INSTRUCTIONS .................................................................... 9

» CHASSIS LAYOUT .................................................................................................................16

» BLOCK DIAGRAM ..................................................................................................................18

» PRINTED WIRING BOARD ASSEMBLIES............................................................................. 20

» SCHEMATIC DIAGRAMS ....................................................................................................... 26

» REPLACEMENT PARTS LIST ................................................................................................ 42

» PACKING OF THE SET .......................................................................................................... 60

MODELS

27J-S100/180/260

CJ27S10/26

27J-S180

27J-S100/S260

CJ27S10/26

SHARP ELECTRONICS CORPORATION

Service Headquarters: Sharp Plaza, Mahwah, New Jersey 07430-2135

SHARP ELECTRONICS OF CANADA LTD.

335 Britannia Road East Mississauga,Ontario L4Z 1W9 Canada

S37W727J-S100

Summary of content (47 pages)

PAGE 1
27J-S100/180/260 CJ27S10/26 SERVICE MANUAL S37W727J-S100 COLOR TELEVISION Chassis No. SN-71 ,,,,,,,,, ,,,,,,,,, ,,,,,,,,, ,,,,,,,,, ,,,,,,,,, ,,,,,,,,, ,,,,,,,,, ,,,,,,,,, 27J-S100/180/260 MODELS CJ27S10/26 27J-S100/S260 CJ27S10/26 27J-S180 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 .......................
PAGE 2
7J-S100/180/260 CJ27S10/26 IMPORTANT SERVICE SAFETY PRECAUTION 5 Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and servicing guidelines which follow: WARNING X-RADIATION AND HIGH VOLTAGE 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.
PAGE 3
27J-S100/180/260 CJ27S10/26 IMPORTANT SERVICE SAFETY PRECAUTION (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.
PAGE 4
27J-S100/180/260 CJ27S10/26 PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. AVERTISSEMENT LIMITES DES RADIATIONS X ET DE LA HAUTE TENSION 1. N'entreprendre aucune modification de tout circuit. C'est dangereux. 2. Débrancher le récepteur avant toute réparation. 3.
PAGE 5
27J-S100/180/260 CJ27S10/26 PRECAUTIONS A PRENDRE LORS DE LA REPARATION (Suite) » Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation.
PAGE 6
27J-S100/180/260 CJ27S10/26 LOCATION OF USER'S CONTROL (27J-S100/CJ27S10) -6-
PAGE 7
27J-S100/180/260 CJ27S10/26 LOCATION OF USER'S CONTROL 27J-S260/CJ27S26 -7-
PAGE 8
27J-S100/180/260 CJ27S10/26 27J-S180 -8-
PAGE 9
27J-S100/180/260 CJ27S10/26 INSTALLATION AND SERVICE INSTRUCTIONS Note: (1) When performing any adjustments to resistor controls and transformers use n o n - m e t a l l i c screwdriver or TV alignment tools. (2) Before performing adjustment, TV set must be on at least 15 minutes. CIRCUIT PROTECTION HIGH VOLTAGE CHECK The receiver is protected by a 4.0A fuse (F701), mounted on PWB-A, wired into one side of the AC line input.
PAGE 10
27J-S100/180/260 CJ27S10/26 For adjustments of this model, the bus data is convered 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 service adjustment is required. See Figure "B" to determine if service adjustments are required. To enter the service mode and exit service mode. 1.
PAGE 11
27J-S100/180/260 CJ27S10/26 SERVICE NUMBER DATA ADJUSTMENT ITEM INITIAL VALUE RANGE S01 S02 S03 S04 S05 S06 S07 S08 S09 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 OP PICTURE TINT COLOR BRIGHTNESS SHARPNESS VERTICAL PHASE HORIZONTAL PHASE RF-AGC VERTICAL AMP VCO R CUT-OFF G CUT -OFF B CUT-OFF G GAIN B GAIN TRAP(3.58MHz) BALANCE C.C.
PAGE 12
27J-S100/180/260 CJ27S10/26 Ë adjustment White balance adjustment VCO Adjustment 1. Have unit receive a good local channel. 2. Enter the service mode. select service adjustment "S 03" and set to "00" ( minimum color)(Record original data code under adjustment "S03" before changing) . "S 03" does not have to be adjusted if you selected a B/W picture or monoscope pattern. 3. Alternately adjust service adjustment data of "S14" and "S15" untill a good grey scale with normal whites is obtained. 4.
PAGE 13
27J-S100/180/260 CJ27S10/26 Sub-brightness adjustment Caption position adjustment (horizontal) 1. Have unit receive a good local channel. 2. Make sure the customer brightness control is set to center position. 3. Enter the service mode and select service adjustment "S 04". 4. Adjust "S04"data value to obtain normal brightness level. 1. Have unit receive a good local channel. 2. Enter the service mode and select service adjustment "S18". 3. A black text box appears on the screen ( see figure C). 4.
PAGE 14
27J-S100/180/260 CJ27S10/26 P-IN-P ADJUSTMENT MTS ADJUSTMENT (FOR 27J-S260/CJ27S26) P-IN-P Y LEVEL adjustment 1. Recieve a good local channel. 2. Enter the service mode and select service adjustment "P01". 3. Adjust "P01" data value to obtain normal contrast level. MTS level adjustment 1. Feed the following monaural signal to pin (14) of IC3001. Monaural signal : 300Hz, 245mVrms 2. Connect the rms voltmeter to pin (39) of IC3001. 3. Enter the service mode ant select the service adjustment "M01". 4.
PAGE 15
27J-S100/180/260 CJ27S10/26 DESCRIPTION OF SCHEMATIC DIAGRAM 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.) NOTE: 1. The unit of resistance "ohm" is omitted (K:1000 ohms, M:1 Meg ohm).
PAGE 16
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 CHASSIS LAYOUT H G F E D C B A 1 2 3 4 - 16- 5 6 7 8 9 10 - 17- 11 12
PAGE 17
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 BLOCK DIAGRAM H CJ27S10 / CJ27S10 G F E D C B A 1 2 3 - 18 - 4 5 6 7 8 9 10 - 19- 11 12
PAGE 18
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 PRINTED WIRING BOARD ASSEMBLIES H G F E D C B A PWB-A Wiring Side 1 2 3 4 - 20- 5 6 7 8 9 10 - 21- 11 12
PAGE 19
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 H G F E D C B A PWB-A Chip Parts 1 2 3 - 22- 4 5 6 7 8 9 10 - 23- 11 12
PAGE 20
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 H G F PWB-H Wiring Side E PWB-R Chip Parts D C B PWB-B Wiring Side PWB-R Wiring Side A 1 2 3 4 - 24- 5 6 7 8 9 10 - 25- 11 12
PAGE 21
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 SCHEMATIC DIAGRAM: 27J-S100/CJ27S10 MAIN1 H G F E D C B A 1 2 3 - 26- 4 5 6 7 8 9 10 - 27- 11 12
PAGE 22
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 SCHEMATIC DIAGRAM: 27J-S180 MAIN1 H G F E D C B A 1 2 3 4 - 28- 5 6 7 8 9 10 - 29- 11 12
PAGE 23
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 SCHEMATIC DIAGRAM: 27J-S260 / CJ27S26 MAIN1 H G F E D C B A 1 2 3 - 30 - 4 5 6 7 8 9 10 - 31- 11 12
PAGE 24
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 SCHEMATIC DIAGRAM: 27J-S100/CJ27S10 MAIN2 H G F E D C B A 1 2 3 4 - 32- 5 6 7 8 9 10 - 33- 11 12
PAGE 25
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 SCHEMATIC DIAGRAM: 27J-S180 MAIN2 H G F E D C B A 1 2 3 - 34- 4 5 6 7 8 9 10 - 35- 11 12
PAGE 26
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 SCHEMATIC DIAGRAM: P IN P H 27J-S260/CJ27S26 G F E D C B A 1 2 3 4 - 36- 5 6 7 8 9 10 - 37- 11 12
PAGE 27
J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 SCHEMATIC DIAGRAM: 27J-S260/CJ27S26 MAIN2 H G F E D C B A 1 2 3 -38- 4 5 6 7 8 9 10 -39- 11 12
PAGE 28
27J-S100/180/260 CJ27S10/26 27J-S100/180/260 CJ27S10/26 SCHEMATIC DIAGRAM: CRT 27J-S100/260 CJ27S10/26 H 27J-S180 G F E INDICATION OF SENSOR IC VOLTAGE (IC2001) D PIN No. 1 3 9 IC2001 Power Mute Key(DC) 10 11 18-20 21 22 23 29 30 32 33 34 36 41 42 AFT AC det OSD R.G.B OSD BLK HD VD Reset V-Pulse R/C SCL SDA CC sync MAIN EXT 1 / 2 MAIN TV / EX C B A 1 2 3 4 - 40- 5 6 7 8 9 10 - 41- Logic or Voltage Levels H-Power L - power off H-muteL - normal Power on 0V Vol-down on 0.
PAGE 29
27J-S100/S180/260 CJ27S10/S26 REPLACEMENT PARTS LIST Ref. No. ★ Part No. Description Code ★ Description Code LISTE DES PIECES CHANGE DES PIECES "HOW TO ORDER REPLACEMENT PARTS" To have your order filled promptly and correctly, please furnish the following informations. 1. MODEL NUMBER 2.REF No. 3. PART NO. Part No.
PAGE 30
27J-S100/S180/260 CJ27S10/S26 Ref. No. ★ Part No.
PAGE 31
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No.
PAGE 32
27J-S100/S180/260 CJ27S10/S26 Ref. No. ★ Part No.
PAGE 33
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No. ★ Description Code Ref. No. Part No.
PAGE 34
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No. ★ Description Code DUNTK9254WEK5/K6/K4 å å 27J-S100/180/CJ27S10 MAIN UNIT R605 R606 R608 R609 VRD-RM2HD102J VRD-MN2BE102J VRD-MN2BE101J VRS-RG3LB180J J J J J or VRS-RG3LB100J J 10 R610 R611 R631 R632 R633 R634 åçR651 åçR652 VRN-RL3LBR56J VRD-MN2BE332J VRS-CY1JF391J VRS-CY1JF152J VRS-CY1JF472J VRD-RM2HD101J VRS-RG2HC270J VRD-MN2BE182J M J J J J J M J åçR652 VRD-MN2BE821J J 820 åçR653 J J J J J 2.7M å å 1k 1k 100 18 0.56 3.3k 390 1.5k 4.
PAGE 35
27J-S100/S180/260 CJ27S10/S26 Ref. No. ★ Part No.
PAGE 36
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No.
PAGE 37
27J-S100/S180/260 CJ27S10/S26 Ref. No. ★ Part No. Description Code DUNTK9254WEK8/K7 27J-S260/CJ27S26 MAIN UNIT SF201 RFiLC0405CEZZ R S.A.W.
PAGE 38
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No.
PAGE 39
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 40
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No.
PAGE 41
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No.
PAGE 42
27J-S100/S180/260 CJ27S10/S26 Ref. No. ★ Part No. Description Code Ref. No. DUNTK9254WEK8/K7 27J-S260/CJ27S26 MAIN UNIT ★ Part No.
PAGE 43
27J-S100/S180/260 CJ27S10/S26 Ref. No. ★ Part No. Description Code Ref. No. DUNTK8604WEK8/K9 MISCELLANEOUS PARTS QPLGN0541CEZZ QPLGN0441CEZZ QSOCV0929CEZZ QSOCV0916CEZZ J Plug J Plug J Socket,CRT AB AB AM AH DUNTK9255WEK0 P IN P UNIT INTEGRATED CIRCUITS IC1701 VHiTA7348P/-1 IC1751 VHiKA7805Pi-1 IC1801 VHiM65617SP-1 J TA7348P J KiA7805Pi M M65617SP AK AE BC TRANSISTORS You can substitute "VS2SD601AR/-1"for "VS2SC2462-C-1.
PAGE 44
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No.
PAGE 45
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 46
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No. ★ Description Code CABINET PARTS CCABA1271MES0 _ HBDGB1009MESA JBTN-1096MEKA JBTN-1097MEKA GCOVA1033MEKA GCABB1122MEKA M M M M M M M Cabinet Complete Assy Cabinet Front Badge,"SHARP" Button,Power,Vol-up/down Button,Ch-up/down Cover for R/C Rear Cabinet Part No. ★ Description Code CABINET PARTS LOCATION 27J-S260/CJ27S26 1 1-1 1-2 1-3 1-4 1-5 2 Ref. No.
PAGE 47
27J-S100/S180/260 CJ27S10/S26 Ref. No. Part No. ★ Description Code Ref. No. ★ Part No. Description Code PACKING OF THE SET ★ Polystyrene Bag Operation manual Guarantee Card Infrared R/C unit and batteries ★Polystyrene mat ★ Buffer material FRONT ★ Packing case Use tapes to fix the packing case. REAR TQ0230-S - 60 - Printed in U.S.