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ALIGNMENT PROCEDURE AND OPTION SETTING

Entering SERVICE mode
Service mode is entered by selecting the “mute” remote key and local “down” simultaneously with the sharpness DAC set to
Minimum and programme position 99 selected.
Service mode 2 is selected by pressing the Recall remote key while in service mode 1.
Service mode navigation
- Up /Down remote keys                                        :cycle through the service items available.
- -/+ remote keys                                                   :Decrement/Increment the values within range.
- TV/AV                                                                  :Store the current data.
- 0 – 7 digit keys                                                    :Toggle bits 0-7 in option byte (service mode 2).

Order

Item

Range

1

Cut off (VG2)

LED ON , LED OFF

2

Vertical slope

0-63

3

Vertical Shift

0-63

4

Vertical amplitude

0-63

5

Horizontal shift

0-63

6

Red Cut

0-63

7

Green Cut

0-63

8

Red Drive

0-63

9

Green Drive

0-63

10

Blue Drive

0-63

11

AGC

0-63

12

Sub-Colour

0-63

13

Sub-Brightness

0-63

Sub-Colour:

Set sub-colour to 16.

Sub-Brightness:

Set sub-colour to 33.

G2 alignment:

Before entering into service mode, recall the nominal picture setting :remote key “N”.
From this setting, increase brightness by 11 steps and reduce sharpness to minimum.
Tune a colour bar signal on Prg 99 and enter into SVC mode. In SVC mode , select “G2” item 
and press – or + remote key to control software disable vertical deflection. The user must then 
adjust G2 voltage on FBT, to find the point where LED is ON. Press – or + remote key to return 
to normal SVC mode.

White balance:

- Select a dark picture and adjust Red Cut and Green Cut to the desired colour temperature.
- Select a bright picture, set Blue Drive to 32 and adjust Red Drive, and Green Drive to the 
  desired colour temperature.

4

Summary of Contents for TC-14B4R

Page 1: ... 5MHz 32 95MHz NICAM Colour 35 07MHz PAL Terminals AV1 IN Video 21 pin 1V p p 75Ω Audio 21 pin 500mV rms 10kΩ RGB 21 pin Audio RCA x 1 500mV rms 10kΩ Video RCA x 1 1V p p 75Ω AV1 OUT Video 21 pin 1V p p 75Ω Audio 21 pin 500mV rms 1kΩ Picture Tube A34EAC01X06 34cm High Voltage 26 5 1kV Audio Output 2 5W Music Power 8Ω Impedance Headphones 8Ω Impedance 3 5mm Accessories supplied Remote Control 2 x R...

Page 2: ...receiver such as screw heads aerials connectors control shafts etc When the exposed metallic part has a return path to the chassis the reading should be between 4M ohm and 20M ohm When the exposed metal does not have a return path to the chassis the reading must be infinite LEAKAGE CURRENT HOT CHECK 1 Plug the a c cord directly into the a c outlet Do not use an isolation transformer for this check...

Page 3: ...SERVICE HINTS How to remove the rear cover 1 Remove the 10 screws as shown in Fig 2 LOCATION OF CONTROLS 3 Fig 2 SCREWS SCREWS Fig 3 Screen Y Board Focus E Board ...

Page 4: ...Cut 0 63 7 Green Cut 0 63 8 Red Drive 0 63 9 Green Drive 0 63 10 Blue Drive 0 63 11 AGC 0 63 12 Sub Colour 0 63 13 Sub Brightness 0 63 Sub Colour Set sub colour to 16 Sub Brightness Set sub colour to 33 G2 alignment Before entering into service mode recall the nominal picture setting remote key N From this setting increase brightness by 11 steps and reduce sharpness to minimum Tune a colour bar si...

Page 5: ...8 CIRCUIT BLOCK DIAGRAM ...

Page 6: ...PARTS LOCATION 7 16 6 5 10 13 12 9 14 11 7 2 1 15 NOTE The numbers on the exploded view below refer to the mechanical section of the Replacement Parts List 4 3 ...

Page 7: ...DE D360 DTZX22C DIODE D361 DUZ33B DIODE D403 BY228 DIODE D405 DBYW36 DIODE D407 DBYW36 DIODE D408 DBYW36 DIODE D450 DBYW36 DIODE D510 DTZX3V9B DIODE D511 DTZX3V9B DIODE D520 1N4148 DIODE D521 1N4148 LED D707 DSML1216W DIODE D710 DTZX5V1B DIODE D801 DBYT51J DIODE D802 DBYT51J DIODE D803 DBYT51J DIODE D804 DBYT51J DIODE D805 DBYW36 DIODE D806 DBYW36 DIODE D808 DBYW36 DIODE D809 DBYW36 DIODE D810 DBY...

Page 8: ...1 0 25W 5 390 CARBON R522 ERD25TJ221 0 25W 5 220 CARBON R523 ERD25TJ331 0 25W 5 330 CARBON R524 ERD25TJ561 0 25W 5 560 CARBON R525 ERD25TJ104 0 25W 5 100K CARBON R526 ERD25TJ479 0 25W 5 4R7 CARBON R527 ERD25TJ431 0 25W 5 430 CARBON R528 ERD25TJ221 0 25W 5 220 CARBON R530 ERD25TJ470 0 25W 5 47 CARBON R531 ERD25TJ102 0 25W 5 1K CARBON R533 ERD25TJ103 0 25W 5 10K CARBON R534 ERD25TJ102 0 25W 5 1K CAR...

Page 9: ...104Z 50V 100nF ELECT C519 ECEA1H229 50V 2 2µF CERAMIC C520 ECCR1H102J 50V 1nF CERAMIC C521 ECCR1H102J 50V 1nF CERAMIC C523 ECCR1H103J 50V 10nF MYLAR C524 CMXM2A104J 100V 100nF CERAMIC C525 ECCR1H102J 50V 1nF MYLAR C526 CMXM2A104J 100V 100nF MYLAR C527 CMXM2A473J 100V 47nF ELECT C528 ECEA1ES101 25V 100pF CERAMIC C529 CBZF1H104Z 50V 100nF ELECT C530 ECEA1CS101 16V 100pF CERAMIC C531 ECCR1H473J 50V 4...

Page 10: ...MOTE CONTROL 14 EUR511380 Y P C B 15 485Y 14B4R MISCELLANEOUS COMPONENTS LOOP ANTENNA 4850A01220 CONTROL BUTTONS 4851934302 AV COVER 4857538301 CARTON GPBMA1V5012 INSTRUCTION BOOKS ENGLISH TQB8E3508 1 I C s DECODER VIDEO PROCESSO I501 TDA9381S EAROM I702 X24C 14B4RB DIODES DIODE D591 DTZX2V4A RESISTORS CARBON R591 ERD25TJ221 0 25W 5 220 CAPACITORS ELECT C101 ECEA1ES100 25V 10pF ELECT C315 ECEA2CS4...

Page 11: ...L EXPLODED VIEW BACK COVER 9 4852151400 BATTERY COVER REMOTE 10 UR51EC904A CABINET 11 4852071721 MODEL LABEL 12 PSMA1V5512B POWER BUTTON 13 4854943503 REMOTE CONTROL 14 EUR511300 Y P C B 15 485Y 14B4T MISCELLANEOUS COMPONENTS CONTROL BUTTONS 4851934302 AV COVER 4857538301 CARTON GPBMA1V501Z ROD ANTENNA TZS7ED008 INSTRUCTION BOOKS ENGLISH TQB8E3505 1 I C s EAROM I702 X24C 14B4TL DIODES DIODE D591 D...

Page 12: ...t at time of printing and are subject to change without notice REMARKS a Do not touch the hot part or the hot and cold parts at the same time as you are liable to a shock hazard b Do not short circuit the hot and cold circuits as electrical components may be damaged c Do not connect an instrument such as an oscilloscope to the hot and cold circuits simultaneously as this may cause fuse failure Con...

Page 13: ......

Page 14: ...PRINTED CIRCUIT BOARD ...

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