Philips 21PT2217/94 Service Manual Download Page 14 | Manualshive

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Block Diagrams, Test Point Overview, and Waveforms

15

6.

6.

Block Diagrams, Test Point Overview, and Waveforms

Block Diagram Mono Carrier

Power

AGC

Signal Process

220V~

D801—D804

Q815,IC801
AMP.

T803
Transformer

112(108)

v

22V
12V

Tuner
TU101

IF AMP
Q101

SAW

Toshiba

8891\8893

IC201

Video Amp.

R/G/B

CRT

R/G/B

V. AMP.
IC301

V.out

H. drive AMP.

Q401 Q402

H.out

FBT
T402

175V, 24V

EHT
FOCUS
SCREEN

E

2

PROM

IC001

KEY

IR001
Sensor

Audio AMP.

IC601

AV Vout

Speaker

AV Vin

H_17130_008.eps

160407

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Summary of Contents for 21PT2217/94

Page 1: ...ilips Colour Television Chassis TC8 1A CA H_17130_000 eps 240407 Contents Page 1 Technical Specifications Connections and Chassis Overview 2 2 Safety Instructions Warnings and Notes 4 3 Directions for Use 5 4 Mechanical Instructions 6 5 Service Modes Error Codes and Fault Finding 8 6 Block Diagrams Test Point Overview and Waveforms Block Diagram Mono Carrier 15 7 Circuit Diagrams and PWB Layouts M...

Page 2: ...epending on model 1 1 3 Miscellaneous Power supply Mains voltage VAC 100 240 56 and 94 180 240 63 69 and 79 Mains frequency Hz 50 60 Ambient conditions Temperature range C 5 to 40 Maximum humidity 90 R H Power consumption values are indicative Normal operation W 70 Stand by W 7 1 2 Side and Rear Connections Figure 1 1 Rear and Side I O connections Note The following connector colour abbreviations ...

Page 3: ... Specifications Connections and Chassis Overview EN 3 TC8 1A CA 1 1 3 Chassis Overview Figure 1 2 PWB CBA locations depending on model MONO CARRIER H_17130_039 eps 070507 SIDE AV PANEL HEADPHONE B D CRT PANEL A ...

Page 4: ...e customer 2 2 Maintenance Instructions We recommend a maintenance inspection carried out by qualified service personnel The interval depends on the usage conditions When a customer uses the set under normal circumstances for example in a living room the recommended interval is three to five years When a customer uses the set in an environment with higher dust grease or moisture levels for example...

Page 5: ...n the serial number example BF2A0635000001 indicates the number of the alternative B O M Bill Of Materials that has been used for producing the specific TV set In general it is possible that the same TV model on the market is produced with e g two different types of displays coming from two different suppliers This will then result in sets which have the same CTN Commercial Type Number e g 28PW951...

Page 6: ...e you remove the rear cover 1 Remove all the fixation screws of the rear cover 1 and 2 2 Now pull the rear cover backwards and remove it Figure 4 1 Rear Cover removal SL5 styling 4 2 Assy Board Removal Sometimes it can be necessary to swap a complete assy or Printed Wiring Board PWB How that can be done is explained below 4 2 1 Side IO Keyboard Panel Removal 1 Remove the fixation screws 3 2 Remove...

Page 7: ...Carrier Removing cables and repositioning the panel For better accessibility of the Mono Carrier do the following see next figure 1 If necessary disconnect some cables and move the panel somewhat to the left Then flip it 90 degrees with its components towards the CRT Figure 4 8 Service position Mono Carrier 4 4 Set Re assembly To re assemble the whole set do all processes in reverse order Be sure ...

Page 8: ...ry Mode see chapter 8 Alignments 5 2 Error Codes Not applicable for this chassis 5 3 Fault Finding 5 3 1 No Picture No Sound No Raster Fuse Broken Figure 5 1 Flow chart No Picture No Sound No Raster Fuse Broken No Picture no sound no raster Fuse Broken Is D833 B Shorted to earth Is D of Q801 Shorted to to earth Is D801 D804 OK Replace D801 D804 Check B C of Q402 Check Q801 Check IC 801 NO NO NO YE...

Page 9: ...no raster B OK Check 5V supply pin 9 of IC 201 OK Check H out waveform Pin 13 of IC 201 OK Check waveform C of Q401 OK Check waveform C of Q402 OK Is IC201 Pin9 shorted to earth Yes Replace Q401or R401 Yes Replace IC 201 Yes o N o N No Replace Q402 No Check 5V 9V Circuit No Yes H_17130_012 eps 070507 No Picture Raster Sound OK Check RGB O P Pin 49 50 51 52 of IC 201 OK Check RGB drive O P Q501 Q50...

Page 10: ...o I P R L of IC 601 OK Check Pin 59 of IC 201 No Check Q624 Q625 Q093 is OK Yes No Check Pin 28 29 of IC 201 OK Check Vol Pin 3 Mute Pin10 of IC601 OK Yes Yes Replace IC 601 Yes NO Yes Change the damaged component No Check C601 R601 C602 R602 OK No Yes Change the damaged component No Replace IC201 No H_17130_014 eps 070507 No colour Colour system is Right Dose the TV signal too weak Check Pin 6 7 ...

Page 11: ...izontal Line H_17130_015 eps 070507 One horizontal line Check Deflection yoke Terminal OK Replace Yoke coil Check V output Pin 5 of IC 301 OK Check V input Pin 1 of IC 301 OK Check R314 C301 R317 R336 C309 No Check R405 Fuse D402 No Yes Check 24v supply Pin 2 of IC 301 OK Yes Yes No Check V output Pin 16 of IC 201 No ...

Page 12: ...12 of IC201 Figure 5 8 H_out pin 13 of IC201 Figure 5 9 V out pin 16 of IC201 Figure 5 10 V out pin 5 of IC301 Figure 5 11 Q402 C Figure 5 12 Q815 drain when stand by H_17130_016 eps 240407 H_17130_017 eps 240407 H_17130_018 eps 240407 H_17130_019 eps 240407 H_17130_020 eps 240407 H_17130_021 eps 240407 ...

Page 13: ...8 1A CA 5 Figure 5 13 Q815 drain 5 3 8 Important Voltages Overview Line Position Normal V Standby V 1 B Joint of L801 and R826A 110 8 96 9 2 Joint of C834 and D831 13 0 10 9 3 Joint of L212 and C090 5 0 0 0 4 Pin99 of IC200 4 8 0 0 H_17130_022 eps 240407 ...

Page 14: ... Power AGC Signal Process 220V D801 D804 Q815 IC801 AMP T803 Transformer 112 108 v 22V 12V Tuner TU101 IF AMP Q101 SAW Toshiba 8891 8893 IC201 Video Amp R G B CRT R G B V AMP IC301 V out H drive AMP Q401 Q402 H out FBT T402 175V 24V EHT FOCUS SCREEN E2 PROM IC001 KEY IR001 Sensor Audio AMP IC601 AV Vout Speaker AV Vin H_17130_008 eps 160407 ...

Page 15: ...16 TC8 1A CA 7 Circuit Diagrams and PWB Layouts 7 Circuit Diagrams and PWB Layouts Mono Carrier H_17130_001 eps 160407 A A MONO CARRIER ...

Page 16: ...Circuit Diagrams and PWB Layouts 17 TC8 1A CA 7 Layout Mono Carrier Top Side H_17130_002 eps 160407 ...

Page 17: ...18 TC8 1A CA 7 Circuit Diagrams and PWB Layouts Layout Mono Carrier Bottom Side H_17130_003 eps 160407 ...

Page 18: ...Circuit Diagrams and PWB Layouts 19 TC8 1A CA 7 CRT Panel 6 7 8 9 10 A B C D E F G A B C D E F G 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 CRT PANEL B B H_17130_004 eps 160407 ...

Page 19: ...20 TC8 1A CA 7 Circuit Diagrams and PWB Layouts Layout CRT Panel Top Side H_17130_005 eps 160407 Personal Notes E_06532_012 eps 131004 ...

Page 20: ...PWB Layouts 21 TC8 1A CA 7 Side AV I O Panel Layout Side AV I O Panel Top Side SIDE AV I O PANEL 5 5 4 4 D D C C D D H_17130_006 eps 160407 Main Board Main Board H_17130_007 eps 160407 Personal Notes E_06532_012 eps 131004 ...

Page 21: ...sinks as ground Test probe Ri 10 Mohm Ci 20 pF Use an isolated trimmer screwdriver to perform alignments 8 2 Factory Mode Service Menu Service Mode For certain alignment procedures you will need to enter Factory Mode Service Menu See also figure on next page 8 2 1 How To Enter 1 Press and hold the VOLUME DOWN key on the TV tightly until minimum level 2 Then while holding the VOLUME DOWN key press ...

Page 22: ...r x x V8 TM28 5669 ver x x V8 TM28 5669 ver x x V8 TM28 5669 ver x x V8 TM28 5669 ver x x DYSHA FM RADIO MODE0 V100 DEF SCNT 3C 80 see delta NVM list 76 1 08 V8 TM28 5669 ver x x V8 TM28 5669 ver x x V8 TM28 5669 ver x x V8 TM28 5669 ver x x V8 TM28 5669 ver x x V8 TM28 5669 ver x x DYTIN SYSR PYNS V90 CLVD VCD2 32 see delta NVM list 1E 75 8 34 V8 TM28 5669 ver x x V8 TM28 5669 ver x x V8 TM28 566...

Page 23: ...R 1 FS Tuner 1 English language select 2 Arabic language select Thailand 3 Vietnam language select 4 Mute type 0 y mute 1 RGB mute 5 When mode0 7 1 preset sound system after ASM 6 00 BG 01 I 10 DK 11 M 7 Preset sound system after ASM 0 disable 1 enable MODE1 0 BG system enable 1 I system enable 2 DK system enable 3 M system enable 4 Video2 enable 5 Video3 enable 6 YUV enable 7 Thailand Dual langua...

Page 24: ...0F 0x0F 0x0F 0x0F 0x0F 0x0F 0x0F 0x0F 0x0F V05 0x0F 0x0F 0x0F 0x0F 0x12 0x12 0x12 0x12 0x12 0x12 0x12 0x12 V10 0x15 0x15 0x15 0x15 0x17 0x17 0x17 0x17 0x17 0x17 0x17 0x17 V30 0x49 0x49 0x49 0x49 0x28 0x28 0x28 0x28 0x28 0x28 0x28 0x28 V40 0x58 0x58 0x58 0x58 0x3C 0x3C 0x3C 0x3C 0x3C 0x3C 0x3C 0x3C V50 0x63 0x63 0x63 0x63 0x53 0x53 0x53 0x53 0x53 0x53 0x53 0x53 V80 0x74 0x74 0x74 0x74 0x74 0x74 0x7...

Page 25: ...een By changing the value of BB and GB set the reading of the color analyser to the x y values as given in the next table 4 Use a color analyser to measure the White part of the screen By changing the value of BD and GD set the reading of the color analyser to the x y values as given in the next table 5 Repeat these steps until you get the right color on both dark and bright pictures see next tabl...

Page 26: ... the following key components 9 2 Chassis Block Diagram Below find the chassis block diagram Figure 9 1 Chassis block diagram Item Part No Name of IC Function IC201 13 PA8891 PSP TMPA8891CXBNG MCU Decoder TU101 07 389FI5 NA3G FSBP05P 3 E Tuner Z101 45 SAW296 6M00G K2966M SAW Filter IC001 13 24C08A PUP27 AT24C08A EEPROM IC601 13 TDA749 6AS TDA7496SA Audio output amplifier IC901 13 000040 53P HCF405...

Page 27: ...terfece Ext x1 Int x1 AFT OSD R G B Ys I Font 16 x 18 Display 32C x 12L Color 8 Character 384 Half tone Transparent CCD Y Proc C Trap Black stretch Y gamma Sharpness Base Band Proc TINT 1H DL Int Ext switch Color Uni color RGB Matrix ROM 㧠㧤 kB RAM 2kB ROM correction Sound TRAP IF AGC AGC DET Reg FM DEMO De emp on oﬀ ALC BPF SW VM AU Monitor out 1 H Lout SIF out AU Monitor out 2 C V3 CVBS Video SW ...

Page 28: ...ess Select 4 SCL I2C Bus Serial Clock 5 SDA I2C Bus Serial Data 6 7 BP Supply Voltage Tuner Section 5V 8 AFC Automatic Frequency Control 9 BT Supply Voltage Tuner Section 31V 10 n c IF1 11 IF2 Intermediate Frequency Out H_17130_029 eps 240407 Block Diagram Pin Configuration Top View VOLUME OP AMP MUTE STBY PROTECTIONS 1 470nF INR 30K VOLUME OP AMP 30K 1000µF 1000µF 1µF 10K 5 470nF INL 8 S_GND 2 14...

Page 29: ...A78040N E 9 3 7 Q402 BU4508DZS Q402 is a high speed switching high voltage PNP power transistor with a built in damper diode designed for use in horizontal deflection circuits The pinning is as follows Figure 9 6 Pinning of Q402 BU4508DZS Block Diagram H_17130_031 eps 240407 Pin Configuration 1 7 H_17130_033 eps 240407 b c e Rbe 1 2 3 case PIN DESCRIPTION 1 base 2 collector 3 emitter case isolated...

Page 30: ...IC Data Sheets EN 32 TC8 1A CA 9 9 3 8 IC801 TEA1506P IC801 is a switched mode power supply control IC Its block diagram and pinning are as follows Figure 9 7 Block diagram of IC801 TEA1506P Block Diagram H_17130_032 eps 240407 Pin Configuration ...

Page 31: ...579545 MHz NTSC 4 43 4 433619 MHz this is a VCR norm it is not transmitted off air NVM Non Volatile Memory IC containing TV related data for example options O C Open Circuit OSD On Screen Display PAL Phase Alternating Line Color system used mainly in Western Europe color carrier 4 433619 MHz and South America color carrier PAL M 3 575612 MHz and PAL N 3 582056 MHz PCB Printed Circuit Board or PWB ...

Page 32: ... 0 3µF 5 250V C422 9965 000 14081 5600pF 5 50V C423 9965 000 13961 47μF 20 16V C425 9965 000 15099 0 01μF 80 20 50V C441 9965 000 14039 4 7μF 20 50V C601 9965 000 15113 220nF 5 50V C602 9965 000 15113 220nF 5 50V C603 9965 000 15117 4700pF 5 50V C604 9965 000 15117 4700pF 5 50V C605 9965 000 14599 470μF 20 16V C606 9965 000 14599 470μF 20 16V C607 9965 000 14599 470μF 20 16V C608 9965 000 14599 47...

Page 33: ...0 32018 LED 932205099682 D002 9965 100 02996 1N4148 Switching D005 9965 100 02996 1N4148 Switching D006 9965 100 02996 1N4148 Switching D007 9965 100 02996 1N4148 Switching D008 9965 000 13957 2 2kΩ 5 1 6W D009 9965 000 15818 BZX79 C6V2 D010 9965 000 15818 BZX79 C6V2 D011 9965 000 15818 BZX79 C6V2 D012 9965 100 03097 Zener 5V1 1 2W 5 D020A 9965 100 03090 BAT85 Switch D090 9965 000 15817 3V9 1 2W 5...

Page 34: ...Spare Parts List EN 36 TC8 1A CA 10 ce Q501 9965 100 02998 TRANSISTOR 2SC2482 Q502 9965 100 02998 TRANSISTOR 2SC2482 Q503 9965 100 02998 TRANSISTOR 2SC2482 Q510 9965 100 02997 ST2SA1015Y PNP ...

Page 35: ...Revision List EN 37 TC8 1A CA 11 11 Revision List Manual xxxx xxx xxxx 0 First release ...

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