21HT-15C 21HT-16C SERVICE MANUAL SE0021HT1*C00 Issued: 14th Nov 2002 GA-1E CHASSIS PAL SECAM B/G, D/K SYSTEM COLOUR TELEVISION MODELS 21HT-15CS 21HT-16CS In the interests of user safety (required by safety regulations in some countries) the set should restored to its original condition and only parts identical to those specified should be used. CONTENTS ELECTRICAL SPECIFICATIONS ..................... 3 IMPORTANT SERVICING NOTES .................. 4 CONTROLS & TERMINALS .............................
1HT-15C 21HT-16C Service Manual update log sheet Technical Report No. Technical Bulletin No. Cause / Solution Part No. Page No. Application Data /Serial No. Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly the part number in the Parts Listing Section. If you need more information, please refer to the Technical Report (Bulletin).
21HT-15C 21HT-16C ELECTRICAL SPECIFICATIONS •Power Input .................... 220V-240 Volts AC 50Hz •Sound Carrier Trap B/G ................................................ 33.4MHz D/K ................................................ 32.4MHz •Power Consumption Normal Operation (Method IEC60107) ........ 43W Stand-by Operation .................................. 3W •Adjacent Sound Carrier Trap B/G ................................................ 40.4MHz D/K ...........................................
21HT-15C 21HT-16C IMPORTANT SERVICING NOTES Only qualified service personnel are allowed to carry out maintenance and repair of this receiver. Servicing of high voltage system and CRT It is important that the static charge is removed from the high voltage system when carrying out work on the receiver. This can be achieved by connecting a 10K resistor (with a suitably insulated lead) from the CRT cavity connector to the CRT ground tag.
21HT-15C 21HT-16C CONTROLS & TERMINALS Remote Control CALL ( )/CHILD LOCK ( SOUND MUTE ( POWER/STANDBY ( Infrared Transmitter Window Aim this window at the infrared sensor on your TV set ) button ) button TV/VIDEO Select button ) button Single/Double Entry button ( TV/VIDEO Programme Select buttons FLASHBACK ( ) button Returns to previously viewed programme 1 2 3 4 5 6 7 8 9 6CHANNEL (PROGRAMME) UP ( )/ DOWN ( ) button ( ) Selects next higher programme ( ) Selects next lower programme
21HT-15C 21HT-16C SERVICE ADJUSTMENTS • Service Mode function All required adjustments for servicing this TV set, may be done in “service mode”, excepting G2 and FOCUS. How to access the Service Mode 1. Turn the receiver on and ensure that it is tuned into a test pattern. 2. Turn the receiver off using the mains switch. 3. Press the volume down and channel up buttons together. See Fig.1. 4. Continue pressing the volume down and channel up buttons while turning the mains on using the mains switch.
21HT-15C 21HT-16C • Service adjustment and data list The table below shows the various service mode positions, range of values and default value. The columns are headed as below. Heading: Descriptions: OSD This is what will appear on the screen at this position. Function This is the description of the mode’s function. Range This is the range of values that can be entered while in this mode. Initial This is the initial value, i.e. just after changing the NVM.
21HT-15C 21HT-16C No. OSD Function Range Initial Default 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 HTL-PRG RGB SEARCH-SYS CUT-R CUT-G CDL DL-PT DL-ST DL-4T COL-OP COL-OS COL-O4 SHP-OP SHP-OS SHP-O4 SC-VOL PRE-SC PRE-FM PRE-NICAM AVC-DKY AC-OFF-TIM 0...99 or > 99 for none 0...15 0(L-BG),1(BG),2(I),3(DK) 0...63 0...63 0...15 0...15 0...15 0...15 0...15 0...15 0...15 0...15 0...15 0...15 0..255 0..127 0..127 0..127 1...4 data(1.2.4.8.) 0..
21HT-15C 21HT-16C • Screen adjustment 1. G2 Adjustment 1. Enter the service mode (see page 6). 2. Use the channel up or channel down buttons to enter the << BLUE-BACK >> function. 3. Set this to << BLUE-BACK: 0 >>, i.e. blue background is turned off. 4. Turn the set off at the mains. 5. Turn the set back on. 6. Set the picture control settings to normal. 7. Select the SCART input by pressing the TV/SCART button on the remote control. Do not connect an input to the SCART socket.
21HT-15C 21HT-16C • Geometry adjustment procedure To adjust the geometry, follow the procedure outlined below: 1. Tune the set into a Philips test pattern. 2. Enter the service mode as described on page 6. 3. Use the channel up or channel down buttons to enter the desired mode 4. Use the volume buttons to achieve correct setting. 5. When adjustments are complete, use the stand-by button to turn off the set. The adjustment values will be stored at this point.
21HT-15C 21HT-16C • Colour adjustment procedure The following adjustments should only be carried out when the CRT or IC801 are replaced. Notes: • This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 700 µA. • The red value «DRI-RS» should be fixed to 42. (Refer to “How to access service mode” section). • «DRI-GS» adjustment alters “Y” coordinate. • «DRI-BS» adjustment alters “X” and “Y” coordinates.
21HT-15C 21HT-16C HOTEL MODE FUNCTIONS The following procedure details how to set up the Hotel Mode Functions. 1. Short Description 1.1. Hotel Mode “HTL”: Main Hotel Mode. It deactivates “Channel Setting” functions. It reduces the Maximum Volume. 1.2. Hotel Mode “HTL-VOL”: Maximum Volume Level Regulation. 1.3 Hotel Mode “HTL-PRG”: Fixing start up program when the TV set is switched on. 2. Before start 2.1.
21HT-15C 21HT-16C 3.2.3. Select “HTL-VOL” by using channel up/down buttons. 3.2.4. Set the value according to your necessities by using volume up/down buttons. 3.2.5. Change initial value from “0” (off ) to “1” (on). 3.2.6. Note: If you do not need to set up Hotel Mode “HTL-PRG” get out from Service Mode (To exit the Service Mode press the stand-by button on the remote control or turn the receiver off with the mains switch). 3.3.
21HT-15C 21HT-16C CHASSIS LAYOUTS Mother unit 21HS50C 21HS50F 21HS50C CRT unit 14
21HT-15C 21HT-16C LED FLASHING CODE PURPOSE: The led indicates the power mode, occurred I2C error and On timer INPUT: Current power mode - I2C Errors - On timer Processing: - If in STANDBY mode and On timer inactive then switch LED off. - If in STANDBY and On timer active set LED to blinking, (switch on and off at 1 Hz with a 50% duty cycle). - If in POWER-ON mode, switch LED on. - If an I2C error occurred, let the LED blink at 1 Hz, 50 % duty cycle. For the blinking times see the Table below.
21HT-15C 21HT-16C F 7340N7A PWB.
21HT-15C 21HT-16C F 7340N7A PWB.
21HT-15C 21HT-16C F 7340N7A PWB.
21HT-15C 21HT-16C F 7340N7A PWB.
21HT-15C 21HT-16C ICs ADDITIONAL INFORMATION TDA9351(IC801) QUICK REFERENCE DATA SYMBOL PARAMETER MIN. TYP. MAX. UNIT Supply VP supply voltages − 8.0/3.3 − V IP supply current − 135/60 − mA ViVIFrms) video IF amplifier sensitivity (RMS value) − 75 − µV ViSIF(rms) QSS sound IF amplifier sensitivity (RMS value) − 60 − µV Input voltages ViAUDIO(rms) external audio input (RMS value) − 500 − mV ViCVBS(p-p) external CVBS/Y input (peak-to-peak value) − 1.
42 40 24 21 +8V 15 19 14 39 18 41 30 (32) 13 CHROMA 43 CVBS/Y IFIN 23 27 37 38 SNDIF 17 H-OSC. + PLL H/V SYNC SEP. DECODER PAL/SECAM/NTSC REF VIDEO FILTERS VIDEO IDENT. VIDEO SWITCH VISION IF ALIGNMENT-FREE PLL DEMOD. AGC/AFC VIDEO AMP.
21HT-15C 21HT-16C TDA9351(IC801) PINNING SYMBOL PIN DESCRIPTION P1.3/T1 P1.6/SCL P1.7/SDA P2.0/TPWM P3.0/ADC0 P3.1/ADC1 P3.2/ADC2 P3.3/ADC3 VSSC/P P0.5 P0.
21HT-15C 21HT-16C TDA9351(IC801) SYMBOL INSSW2 R2/VIN G2/YIN B2/UIN BCLIN BLKIN RO GO BO VDDA VPE VDDC OSCGND XTALIN XTALOUT RESET VDDP P1.0/INT1 P1.1/T0 P1.
21HT-15C 21HT-16C TEA1507(IC701) ndbook, full pagewidth VCC 1 SUPPLY MANAGEMENT 8 START-UP CURRENT SOURCE clamp internal UVLO start supply GND 2 S1 7 VALLEY DRAIN HVS n.c. M-level 4 VOLTAGE CONTROLLED OSCILLATOR LOGIC DEM 100 mV OVERVOLTAGE PROTECTION FREQUENCY CONTROL OVERTEMPERATURE PROTECTION CTRL LOGIC 6 DRIVER DRIVER Iss 3 −1 POWER-ON RESET S Q R Q LEB blank UVLO 2.5 V 0.
21HT-15C 21HT-16C AN7523(IC303) 9 Volume 8 7 Pin Descriptions N.C. Input GND 6 5 Standby 4 GND Output 3 2 Output VCC 1 Circuit Function Block Diagram Pin No. Description 1 Vcc 2 Ch Output (+) 3 GND 4 Ch Output (-) 5 Standby 6 Ch Input 7 GND 8 N.
21HT-15C 21HT-16C SCHEMATIC DIAGRAMS Description Note: Safety note: 1. Disconnect the AC plug from the AC outlet before replacing parts. 1. The unit of resistance «ohm»is omitted (K=1000 ohms. M= Megaohm). 2. All resistors are 1/16 watt. unless otherwise noted. 3. All capacitors are µF, unless otherwise noted (P= µµF). 4. The capacitor with Part No. RC-FZ9XXXBMNJ is designed to with stand 63V. 5. The capacitor with Part No. RC-FZ4XXXBMNJ is designed to with stand 50V. 2.
21HT-15C 21HT-16C 27
21HT-15C 21HT-16C Schematic Diagram of Mother Unit (F7340N7A, 00 Version) I H G F E D C B Page 29 A 1 2 3 4 28 5 6 7
21HT-15C 21HT-16C Schematic Diagram of Mother Unit (F7340N7A, 00 Version) I H G F E D C B Page 28 Page 30 A 8 9 10 11 29 12 13 14
21HT-15C 21HT-16C Schematic Diagram of Mother Unit (F7340N7A, 00 Version) I H G F E D Page 29 C B A 8 9 10 11 30 12 13 14
21HT-15C 21HT-16C Schematic Diagram of CRT Unit (F7341N0, 00 Version) I H G F E D C B A 1 2 3 4 31 5 6 7
21HT-15C 21HT-16C BLOCK DIAGRAMS Mother Unit I H G F E D C B Page 33 A 1 2 3 4 32 5 6 7
21HT-15C 21HT-16C Mother Unit I H G F E D C Page 32 B A 8 9 10 11 33 12 13 14
21HT-15C 21HT-16C CRT Unit I H G F E D C B A 1 2 3 4 34 5 6 7
21HT-15C 21HT-16C TROUBLESHOOTING TABLES NO RASTER Check F701 NO YES Does F701 appear blown out? Replace the fuse Check T701 pin 16 voltage. Does F701 appear blown out again? NO Does 290V appear at pin (16) of T701 (SMT Transf.) NO YES END Check R701,S701 and AC in.
21HT-15C 21HT-16C NEITHER VERTICAL NOR HORIZONTAL SYNCHRONIZATION CIRCUIT TO BE CHECKED: Sync. Separator Circuit. Check pin33 and 34 of IC801. DEFECTIVE VERTICEL AMP. AND VERTICAL LINEARITY Readjusted vertical size. (Bass Data) Vertical linearity and size is abnormal. Check R502,R505 NO VERTICAL SCAN Check IC501 bias. Normal Abnormal Check C502 and C514. Check IC501.
21HT-15C 21HT-16C NO PICTURE, NO SOUND CIRCUITS TO BE CHECKED: Tuner. PIF. Automatic Gain Control. 5V, 32V Power Source. Does the noise level increase at max. Contrast,Brightness and Sound controls? Noise increase but no signal is received. No snow noise. Check the tuner supply voltage LB and HB must be approx. 5V, BT must be approx. 32V,and CH preset data check.
21HT-15C 21HT-16C PARTS LISTING REPLACEMENT PARTS Replacement parts which have special safety characteristics are identified in this manual. Electrical components having such features are identified by ! in the Replacement Part List. The use of a substitute replacement part which does not have the same safety characteristics as the factory recommended is not permitted. Replacement parts not shown in this service manual may create shock fire, or other hazards.
21HT-15C 21HT-16C REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No. PARTS DESCRIPTION * SN CODE EX CODE CF 0401 SF 0201 RFILC0168GEZZ RFILC0291BMZZ SIF TRAP 5.5/6.5MHZ (MRT) SAW FILTER K2955M SIEMENS S AA S AH AE AP T 0601 T 0602 T 0701 RTRNZ0026PEZZ DRIVER TRANSFORMER RTRNF2053CEZZ FBT BSC21-2643S SHENZHEN RTRNW0005CEZZ TRANSF.
21HT-15C 21HT-16C REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No.
21HT-15C 21HT-16C REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No.
21HT-15C 21HT-16C REF No. PARTS DESCRIPTION CACCZ2049WEV5 LHLDK1501BM00 LHLDW1009CEZZ LHLDW1019CEZZ LHLDW1033CE00 LHLDW1060CEZZ LHLDZ1714BMZZ QCNW-5971CEZZ RRMCG1060BMSA SPAKR500A2004 UBATU0013TAZZ QSOCN0302CEZZ QTIPM0025TAZZ GCABA1352BMSA LHLDZ1050CEZZ XTASD30P12000 VSP9050PB33WA TINS-7185BMN0 TINS-7249BMN0 SPAKC5494BMZZ SPAKX4076BMZZ LHLDW1033CE00 QCNW-5969CEZZ QCNW-5970CEZZ A.
21HT-15C 21HT-16C SOURCE OF DOCUMENTATION 1. TDA9351, Philips Data Sheet: TDA935X/6X/8X PS/N2 series, TV signal processor-Teletext decoder with embedded m-Controller. Tentative Device Specification, 2001 Apr 12, Version: 2.85. 2. TEA1507, Philips Data Sheet: TEA1507 GreenChipII SMPS controlIC. Preliminary specification, 2000Dec05. 3. AN7523, Matsushita Electronics Corporation Specifications: AN7523 Product Specifications. Doc No. SDSC-PSE-AN7503, Eff. Date 23-FEB-01. 4.
21HT-15C 21HT-16C 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. SHARP ELECTRONICA ESPAÑA S.A. TV Division Engineering Dept.
