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Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
Training TV Philips Chasis L01
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Training TV Philips Chasis L01

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Entrenamiento sobre el TV Philips Chasis L01.

Entrenamiento sobre el TV Philips Chasis L01.

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  • 1. CTV 2001 L01 PAGE 1
  • 2. CTV 2001 L01 PAGE 2
  • 3. CTV 2001 L01 PAGE 3 LOT RELAY TEA1507 SWITCH MODE TDA8359 POWER IC TRANSFORMER FRAME IC UOC TDA6107 M24C08 MSP 34X5 AN7522 UOC TUNER RGB Amplifier MICROPROCESS EEPROM SOUND IC AUDIO AMP
  • 4. CTV 2001 L01 PAGE 4 TDA 95XX HEF4053 UOC Switching IC HEF4052 TDA 9853 Switching IC Non DBX Sound IC
  • 5. CTV 2001 L01 PAGE 5 POWER SUPPLY
  • 6. CTV 2001 L01 TEA1507 PAGE 6
  • 7. CTV 2001 L01 TEA1507 PAGE 7 FEATURES Distinctive Features • Universal mains supply operation( 70 to 276V AC). • High level of integration, giving a very low external component count.
  • 8. CTV 2001 L01 TEA1507 PAGE 8 Green features • Valley/zero voltage switching for minimum losses • Efficient quasi-resonant operation at high power levels • Frequency reduction at low power standby for improved system efficiency(<3W) • Burst mode operation for very low standby levels(<1W) • On-chip start-up current source
  • 9. CTV 2001 L01 TEA1507 PAGE 9 Protection features • Safe restart mode for system fault conditions • Continuous mode prot. by demagnetization detection • Accurate and adjustable overvoltage protection • Short winding protection • Undervoltage protection • Overtemperature protection • Low and adjustable overcurrent protection trip level • Mains voltage-dependent operating-enabling level
  • 10. CTV 2001 L01 TEA1507 PAGE 10
  • 11. CTV 2001 L01 Functional description TEA1507 PAGE 11 Istart=1,2mA, Vdrain>100V Vstart-up=11V, Icc=1,3mA Vcc Low=8,7V
  • 12. CTV 2001 L01 TEA1507 operating modes PAGE 12
  • 13. CTV 2001 L01 Start-up sequence PAGE 13 11V M-level Burst mode stby
  • 14. CTV 2001 L01 Control pin CTRL PAGE 14 Vsense(max)voltage as function of VCO frequency as function of Vsense VCTRL Vctrl<1V Vctrl>1.5V Frequency variation If Vctrl increases Vsense decreases-> frequency decreases If Vctrl decreases Vsense increases-> frequency increases If Vctrl <1V and >1.5V-> PWM regulation and fixed frequency
  • 15. CTV 2001 L01 Valley switching PAGE 15 Start of a new cycle at lowest drain voltage Start of a new cycle in a classical PWM system at high drain voltage
  • 16. CTV 2001 L01 Demagnetization PAGE 16
  • 17. CTV 2001 L01 Overvoltage protection(OVP) PAGE 17
  • 18. CTV 2001 L01 Overcurrent protection(OCP) PAGE 18 Current measuring Level internal limited at 0.5V
  • 19. CTV 2001 L01 OverPower protection(OPP) PAGE 19 Short winding protection Overpower protection
  • 20. CTV 2001 L01 Burst mode standby PAGE 20 Burst mode standby Iburst on = 16mA Vburst Standby position on = 3.8V
  • 21. CTV 2001 L01 Soft start-up PAGE 21 Soft start-up
  • 22. CTV 2001 L01 A1 Standby mode PAGE 22
  • 23. CTV 2001 L01 Power down and protection PAGE 23
  • 24. CTV 2001 L01 PAGE 24 Schema service manual A1 page 22
  • 25. CTV 2001 L01 Tips for debugging power supply PAGE 25 No. Problem symptom Check 1) No Vbatt volt, Vaux volt Voltage on Pin 1 of 7520, 3532, 3523,7521 2) Low voltage on Stdby_con signal ( normal- Low, Stdby- Vbatt,Vaux High), But 3.3v is OK 7541, 7542 collector of 7561 ( normal - High, Stdby - pulses) 3) Set automatically collector voltage of 7561, 3.3V supply, switchoff after switch on shorting on Vaux supply. 4) No 3.3V supply Short on 3.3V 7560 6561/6562 3564
  • 26. CTV 2001 L01 PAGE 26 END go back to MAIN MENU
  • 27. CTV 2001 L01 PAGE 27 DEFLECTION
  • 28. CTV 2001 L01 Defelection PAGE 28 • Synchronisation • Horizontal deflection • Vertical deflection • Protections
  • 29. CTV 2001 L01 Synchronisation PAGE 29 UOC - Synchronisation TILT Tilt µP Teletext Teletext VIDEO Acquisition /OSD SWITCH PANORAMA Internal CVBS SYNC H V 1 H H-DRIVE External H/V Sync H-Drive Separat. H FLYBACK Horizontal CVBS, SVHS or Y/C EHTInfo Deflection V EHTo EW EWdrive VDRA V-Drive Vertical VDRB Deflection Vguard
  • 30. CTV 2001 L01 PAGE 30
  • 31. CTV 2001 L01 A2 Horizontal deflection PAGE 31
  • 32. CTV 2001 L01 PAGE 32 EHTinfo EWdrive Mains Supply Horizontal Deflection Panorama Coil Hflybk Secondary output voltage L H Vguard BLK-IN POWER DOWN EW EHTo Correction EW Protection
  • 33. CTV 2001 L01 EW correction PAGE 33
  • 34. CTV 2001 L01 Auxiliary voltages LOT PAGE 34
  • 35. CTV 2001 L01 A2 Auxiliary voltages PAGE 35
  • 36. CTV 2001 L01 Panorama PAGE 36
  • 37. CTV 2001 L01 A3 Frame deflection PAGE 37 Protection Vdrive + Vdrive - Feedback
  • 38. CTV 2001 L01 A2 Protections deflection H and V PAGE 38
  • 39. CTV 2001 L01 BLK_IN/VGUARD Signal(UOC Pin 55) PAGE 39
  • 40. CTV 2001 L01 PAGE 40 SERVICE MANUAL PAGE
  • 41. CTV 2001 L01 Tips for debugging deflection PAGE 41 No. Problem symptom Check 1) Set cannot start-up & Isolate 5561 & check Vbatt is correct now (Power Vbatt volt not correct Supply ok) – check for 7460, 6460, 6461 failure. Check MainAux and VlotAux +13V (6467) are correct for base drive of deflection – check for 7461, 7463 & 7460 failure. 2) Incorrect pic. width or Isolate 5400 & check EW_protection is now not EW trigger – check for 7400, 2401, 2404 failure. Protection trigger 3) No Check secundary voltage supply – 3494, 3488, +200V,+50V,+13V,+8V,+5 6486, 7480, 7482. V supply 4) Single horizontal line No vertical deflection – check 7471 Frame IC, VlotAux+13V failure. 5) Flyback line visible on Check 7330 Video amplifier, +200V supply failure. screen
  • 42. CTV 2001 L01 PAGE 42 A6 Synchronisation Protection flash Alim VP2 Iref Trame Correction géométrie image Protection Lignes OVP switch off BT L et T
  • 43. CTV 2001 L01 Video Signal Processing PAGE 43 Video Signal Processing
  • 44. CTV 2001 L01 PAGE 44 General description Combined the function of : video processor + Micro-controller. Basically divided in 4 main function : 1) Microcontroller 2) Video / Audio Demodulator TDA955x/6x/7x/8x 3) I/O Switching 4) SYNC Separator
  • 45. CTV 2001 L01 PAGE 45
  • 46. CTV 2001 L01 Tuner and IF QSS PAGE 46 UOC Sound Processing FM Sound QSS_AM_DEM_OUT Sound IF QSS Sound IF Tuner Saw Filter Visiion Vision IF IF Video output Vision IF Saw Filter Tuner AGC Sound Trap SEL_IFPLL/Mtrap uP I2C Video Int CVBS Processing
  • 47. CTV 2001 L01 Tuner Block Diagram PAGE 47 IIC Data Lines RF AGC CIRCUIT 4/5 1 22 71/72 11 Video SAW Filter 18/19 TUNER UOC FM Input 2 Audio SAW Filter 23/24 SAW Filter Switching Circuit SEL-IF-LL’
  • 48. CTV 2001 L01 Video Processing PAGE 48 Radio TV-Tuner UOC UOC 7200 - C 7200 - A . Video IF+ Ampl .Processing UOC I/O 7200 - D Scart / Front Synchronisation
  • 49. CTV 2001 L01 Tuner IF PAGE 49 Tuner 11 10 UOC Video SAW VIF1 = pin18 Video VIF2 = pin19 FM RADIO A5-24 7002 UOC Sound SAW SIF1 = pin23 7001 SOUND SIF2 = pin24 SEL-IF-M-TRAP
  • 50. CTV 2001 L01 PAGE 50 Schema service manual A4 page 26
  • 51. CTV 2001 L01 Video processing PAGE 51 Tuner 11 AGC PIN18/19 Ampli 49 EXT 1 CVBS Demodulation IF VIDEO Video 38 7200- A IF SOUND CVBS 40 7200-C
  • 52. CTV 2001 L01 Video Processing PAGE 52 V-OUT CVBS vers Ext2 C-in R 45 47 56 V SY-CVBS-in 57 44 B 7200-C 58 42 55 BLK-in CVBS1-in 54 40 51 52 53 50 CVBS-terr-in R EHT-info V B EXT1 FBL
  • 53. CTV 2001 L01 PAGE 53 Schema service manual A5 page 27
  • 54. CTV 2001 L01 Video source select PAGE 54 Scart 1 Video Out Scart 2 Video Out 49 47 R In 51 G In 52 Video Processing R Out 56 B In 53 G Out 57 B Out UOC FBL In 50 58 HEF4053BT Front/Side Video In Scart 1 Video In 42 5 4 Scart 2 Video In 44 3 38 1 2 54 40 9/10/11 Status 1 RF Video Status 2 SEL-Main_Frnt_RR EHT Info BCL Circuit Sound Trap
  • 55. CTV 2001 L01 PAGE 55 Schema service manual A10 page 32
  • 56. CTV 2001 L01 B1 CRT panel PAGE 56
  • 57. CTV 2001 L01 CRT PAGE 57 Schema service manual B1 page 42
  • 58. CTV 2001 L01 2 CRT Scavem PAGE 58
  • 59. CTV 2001 L01 Scavem PAGE 59 Schema service manual B2 page 43
  • 60. CTV 2001 L01 PAGE 60 END go back to MAIN MENU
  • 61. CTV 2001 L01 PAGE 61 MICROPROCESSOR
  • 62. CTV 2001 L01 Micro Controller Diversity PAGE 62 Type Teletext ROM Software Others Number Type Size Used TDA9561 10 Page 128k 3EU1/3EU2 Inter-Carrier TDA9567 10 Page 128k 3EU1 QSS TDA9552 1 Page 64k 2EU0 QSS TDA9551 1 Page 64k 2EU9 Inter-Carrier TDA9550 1 Page 64k 2EU0 Inter-Carrier TDA9572 Nil 32k 1EU0 QSS TDA9571 Nil 32k 1EU0 Inter-Carrier TDA9581 Nil 32k 1EU0 Inter-Carrier
  • 63. CTV 2001 L01 Micro Controller block diagram PAGE 63 Power Supply Stby_Con Write Protect Power Good Keyboard/Protection NVM Circuit Keyboard/Protection ST24C16W6 Status 1/Status 2 Scart UOC IIC Data Vol/Mute/Treble/Bass/Panorama Micro Controller Lines Mono Audio Proc. SEL-Main-Front-RR Audio Amp. SEL-IF-LL’ LED Source Select MSP IC IR Circuit SAW Filter Horizontal Switching Pulse LED TUNER IR DEFLECTION
  • 64. CTV 2001 L01 Microcontroller functionality PAGE 64 I2C 71, 72 UOC 6 Stdby-con 7200B 68 Write Protect NVM IR 67 5 LED STATUS 2 2 70 SEL-MAIN-FRNT-RR Output 3 SEL-IF-LL-M-TRAP Input STATUS 1 1 77 Treble Keyboard-protn 80 73 Volume/Mute SDM Power-Down 69 78 Bass-panorama
  • 65. CTV 2001 L01 Functionality TXT/OSD PAGE 65 CVBS Internal 40 42 UOC SCART1 SCART2 4 7200B 4 H 31 R 56 V V 57 TXT OSD B 58 55 BC Info/Protection
  • 66. CTV 2001 L01 UOC interface with power supply PAGE 66 +3.3 V POWER SUPPLY 61 BLOCK Power_down A. C. Mains 69 UOC WITH TEA 1507 Stdby_con CONTROL IC 6
  • 67. CTV 2001 L01 A7 Conrol PAGE 67 Power Dow Service Default Status1 Status2 E/W PROT. Scart Scart 1 Input Scart 2 Input Pin 8 Level 1.82V to 2.6V 4:3 Aspect Ratio 4:3 Aspect Ratio 0.845V to 1.56V 16:9 Aspect Ratio 16:9 Aspect Ratio 0V to 0.65V No Switching No Switching
  • 68. CTV 2001 L01 Standby status UOC PAGE 68 Put Standby Con Put STB to low PG LOW To Low Enable Wait for 550 ms Mute Audio INTERRUPT Put UOC in Wait for 180ms Put STB to low standby Put UOC out of Disable interrupt Standby Put Standby Con Set STB to high To High
  • 69. CTV 2001 L01 Power ON-Standby-Power On-Power Off PAGE 69 Standby key press Out of Standby key press Power ON Standby Power ON Power off 3.3V 180ms >3ms STB bit Mute Audio Mute Audio Enable Interrupt status Disable 550ms Out of Stdby UOC Status Stdby Power down Stdby_con
  • 70. CTV 2001 L01 Power ON-Standby-Power OFF-Power ON PAGE 70 Power ON Standby Power OFF Power ON Standby key press 3.3V Mute Audio STB bit Enable Interrupt status Disable Out of stdby UOC status Stdby 550ms Power down Stdby-con
  • 71. CTV 2001 L01 Power ON - Fault condition PAGE 71 SEQUENCE OF OPERATIONS : POWER ON - FAULT CONDITION (OVER CURRENT BY V aux.) Burst mode with Power ON Fault condition LOT shut down (Audio Over current) 3.3V STB bit Enable Interrupt status Disable Out of stdby UOC status Stdby Power down Stdby-con
  • 72. CTV 2001 L01 Tips for debugging µP PAGE 72 1. Check that both +3.3V DC and +3.9V DC are present. 2. Check that crystal oscillator is working. 3. Check keyboard protection pin that it is in high logic. For sets with EW control, make sure that base of 7606 is low. 4. Check that Power Good signal is at high logic, normal operation. 5. Check that UOC is not in standby mode. Pin 6 of UOC should be 0V DC. 6. Make sure H-drive pulse is there. This can be check from resistor 3251. If H- drive is does not exist, remove resistor 3251 to check if there is loading.
  • 73. CTV 2001 L01 PAGE 73 Schema service manual A7 page 29
  • 74. CTV 2001 L01 PAGE 74 END go back to MAIN MENU
  • 75. CTV 2001 L01 PAGE 75 AUDIO PROCESSING
  • 76. CTV 2001 L01 Audio processing PAGE 76 STEREO TUNER A4 UOC MSP Ampli A5 A9 A8 Ext Ext Audio Audio MONO TUNER A4 SMART UOC Ampli AUDIO A5 A8 A8 Ext Ext Audio Audio
  • 77. CTV 2001 L01 A4 Sound IF PAGE 77 K3953M K6289 K9656M High for L’
  • 78. CTV 2001 L01 Audio Decoder/Processor PAGE 78 VIF UOC To Audio Amplifier 18/19 48 S.S From Tuner Output 23/24 Mono SIF 33 38 TV SIF Video with SIF (QSS) (Inter-Carrier) Note: S.S = Smart Sound Switch Circuit MSP Stereo To Audio Amplifier 47 24/25 31 From Tuner Output (FM Radio)
  • 79. CTV 2001 L01 Mono sound processing PAGE 79 Ext IF (FMR) UOC - Audio Block Mono Mono Demod + Source select + AVL Power Volume control Smart Ext Audio 1 Amplifier Sound Ext Audio 2
  • 80. CTV 2001 L01 A5 IF Sound PAGE 80 Input/Output UOC Sound SIF-1/SIF-2 23/24 CVBS inter carrier 38 VIF-1/VIF-2 18/19 Mono/AM L1-in 7200-C 48 28 QSS_AM_DEM LFRONT-in 33 29
  • 81. CTV 2001 L01 A5 Sound mono set PAGE 81 Scart1 out mono 4211 for mono Audio out mono
  • 82. CTV 2001 L01 Nicam + 2CS + BTSC decoder PAGE 82 UOC Tuner SAW Sound uP Filter IF OSS_AM_DEM_OUT I2C Pre- ADC Demodulator processing L External Stereo SCART Input DSP R ADC Prescale Input External Mono Select Input Loudspeaker L Audio Sound DAC Amplifier Processing R Source Select SCART L DAC Output External Select Audio R Output
  • 83. CTV 2001 L01 Nicam + 2CS + BTSC Stereo Decoder PAGE 83 QSS-AM-DEM-OUT Select Radio /TV TV/RADIO Select 47 3 4 SC2 CTR FMR Main-OutL 25 Mono AM 44 MSP34X5G 24 Main-OutR SC1-Lin SC1-Lout 41 31 SC1-Rin 42 30 SC1-Rout
  • 84. CTV 2001 L01 A9 Nicam +2CS + BTSC PAGE 84 To Audio Ampl. Source select Bandpass filter FM Radio
  • 85. CTV 2001 L01 Audio source select PAGE 85 UOC 29 To Audio Amplifier 48 28 To Monitor Output Mono 33 To Scart Output HEF4052 SIF To Audio Amplifier Front/Side In 1/12 47 MSP 24/25 Scart 1 In 5/14 3/13 41/42 To Monitor Output Scart 2 In 2/15 30/31 4/11 Stereo To Scart 1 Output HEF4053 2/12 To Scart 2 Output 14/15 1/13 To Monitor Output
  • 86. CTV 2001 L01 A10 Audio/video source switching PAGE 86 SC2_CTRL SEL-Main-FRNT-RR To Micronas Monitor Out/AV to Scart 2 out Scart1 out Mono
  • 87. CTV 2001 L01 FM Radio PAGE 87 FM Radio Tuner Mono Amplifier UOC Micronas Stereo Amplifier
  • 88. CTV 2001 L01 A9 FM Radio circuit PAGE 88 FM Radio Mono To Micronas FM Radio Stereo Amplifier Buffer
  • 89. CTV 2001 L01 A8 Audio amplifier PAGE 89 AN7523 Headphone To Speaker Mono 1W - 3W 2/4 6 Left Channel 5 9 Mono 4W Standby Mute/Vol Headphone AN7522 To Speaker 6 2/4 Stereo 3W - 5W 10/12 8 Right Channel 5 9 Standby Mute/Vol
  • 90. CTV 2001 L01 Audio Output PAGE 90 Mono System Sound Mono Processing Audio Amplifier AN7523 UOC Volume/mute uP
  • 91. CTV 2001 L01 Audio Output PAGE 91 Stereo System Main_OutL Sound Stereo L Processing Audio Main_OutR Amplifier R AN7522N UOC Volume/mute uP
  • 92. CTV 2001 L01 A8 Audio amplifier PAGE 92 25 6 2/4 Audio Processing L Amplifier MSP ou BTSC decoder Stereo 24 8 9 10/12 2 x 5W R UOC Volume / Mute 73 µP 77 78 Bass Treble 9 1 x 4W . . Processing Amplifier Audio 6 2/4 Mono Mono
  • 93. CTV 2001 L01 PAGE 93 Schema service manual A8 page 30
  • 94. CTV 2001 L01 PAGE 94 END go back to MAIN MENU
  • 95. CTV 2001 L01 PAGE 95 Error Code 0 A “0” in a buffer means an error has not been detected. L01US0 1.0 SDM ERR 0 0 0 0 0 Contents of last 5 detected errors
  • 96. CTV 2001 L01 PAGE 96 Operation hours timer L011US1version S A M indication 99999 Software 1.0 SAM ERR Contents of last 5 detected errors 0 0 0 0 0 XXX XXX XXX XXXByte Value OB(n) - Option XXX XXX XXX Clear Clear Error Buffer Clear? Options AKB 0 Tuner White Tone Geometry Audio
  • 97. CTV 2001 L01 PAGE 97 Item Item D es crip tio nn D es crip tio IF P LL L IF P L D efau lt valu ee==24 (d oonn o talig nn ) D efau lt valu 24 (d o t alig ) A FF W AW A FF Cw in dd ow A C w in ow AGC AGC D efau lt valu ee==28 (d oonn o talig nn ) D efau lt valu 28 (d o t alig ) S LL S O nn/ /O ff O O ff YD YD D efau lt valu ee==33(d oonn o talig nn ) D efau lt valu (d o t alig ) C LL C D efau lt valu ee==44(d oonn o talig nn ) D efau lt valu (d o t alig ) A FF A AA N oo tselectab le N t selectab le A FF B AB N oo tselectab le N t selectab le
  • 98. CTV 2001 L01 PAGE 98 White Tone Normal NORMAL RED NORMAL GREEN NORMAL BLUE Cool DELTA COOL RED DELTA COOL GREEN DELTA COOL BLUE Warm DELTA WARM RED DELTA WARM GREEN DELTA WARM BLUE
  • 99. CTV 2001 L01 PAGE 99

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