TCL 2127, 27F230T, M134C, 29185, 24FS210T Diagram

：

Alignment Procedure

MODEL： 27F230T/24FS210T V3.0

File No.：YF-Fk07-2002

Page 1 8 pages in total Serial number

TS-00

PREPARED BY : Jenny DATE: 2004-5-13

APPROVED BY : DATE:

No.：YF-Fk07-2002 （ Page 2, 9 pages in total）



Alignment Procedure

一、Summarize：

27F230T/24FS210T chassis Alignment Procedure

29185N6/25185N6，is NTSC only system model developed for NAFTA market

specially. In trial run, burn the software A27V01-TO to TMPA8809 or TMPA8827 IC by OTP method. after the trial run, make the mask，please take care in production. To solve the probable problems in production, for the workers participate in alignment, please be familiar with the Alignment Procedure, and be master of the features.

There are 2 operation modes：user mode and factory mode. You can use the

Remote control or buttons on the panel to operate in user mode, but only Remote control works in factory mode.

The way to enter factory mode：Press “D-MODE”button on RC， press“OK”，

and“CH+”“ CH-”to select the parameter you want to adjust.， Press“VOL+”

“ VOL-”to change the parameters. To quit factory mode，press“D-MODE”button （on the right of SURR button），the factory data changed will be memorized.

A few special modes：

Aging mode — used before the aging before alignment. The aging could

start in factory mode.

Vertical stop mode—used to confirm the screen voltage. Press “INPUT”

button in factory mode to enter Vertical stop mode. Then press “INPUT” button again to exit.

White balance alignment mode—used for white balance auto alignment.

Press“BUS OFF” button near the left of MTS button to enter White balance alignment mode.

Factory mode— To initialize the set. Press “SURR” button in factory mode

to enter Factory mode，the screen displays“WAIT”， after the initialization，the screen displays “OK

”，and exit the Factory

mode automatically.

Then press “D-MODE”button again，it will not enable you to enter

Factory mode，if you want to enter again，you need operate as follows：turn down the volume to 0，press “Volume down”button on the panel， press“INFO”button on the RC meantime.

No.：YF-Fk07-2002 （ Page 3, 9 pages in total）

Alignment procedure

二．Alignment contents：

1. Adjustment of B+ voltage：

Receive Philips standard testing pattern to RF input.

Adjust VR821 in STANDARD mode until voltage at B＋＝130V±0.5V。

2. RF AGC adjustment

Observe monitor the collector waveform of Q101 with the probe of Oscilloscope as illustration below. Select channel 2 (>70dB) from the antenna input. Enter D-mode, select menu6 to adjust RFAGC item until the monitor peak value to 0.8V

p-p

IN60

outpu

input

3P f

3. Screen & Focus voltage adjustment

① Apply pattern signal in normal status, enter Factory mode，press“INPUT”button to stop vertical scan.

（Note：the RC/GC/BC is preset to be 80，GD/BD is 40）

Adjust the SCRREEN switch on the flyback transformer to make a horizontal ②

shining line just visible on the screen.

Turn on the vertical output, adjust the “FOCUS” on the flyback transformer to ③

obtain the optimum focus.

4. White balance adjustment(NORMAL:X=285+8, Y=294+8)

1) Apply the black and white pattern in normal status;

2) Alignment of normal color temperature

① Change Color Temperature to normal status ② Use a color analyzer to measure the black side of the screen. By changing the

value of RC, GC and BC, set the reading of the color analyzer to X=285+8, Y=294+8.

③ Use a color analyzer to measure the white side of the screen. By changing the

value of GD, BD, set the reading of the color analyzer to X=285+8, Y=294+8

④ Separately set the brightness and contrast from min. to max., repeat the step 2

and 3 until the reading of the color analyzer is correct.

Note: Provided the production line is equipped with the self- White balance

adjusting equipment, white balance can be adjusted automatically as following: Press “BUS OFF” button under factory mode, the TV set will adjust automatically.

(Warm: X=310+8, Y=314+8;Cool: X=278+8, Y=282+8)

5. Adjustment of Sub-brightness,

Apply the Grey-scale/Color bar (NTSC signal) to the AV input, in normal status. Enter factory alignment menu 5, Select BRTC to adjust the sub-brightness, until that the 2nd dark bar of 8 level Grey scale just can be seen.

No.：YF-Fk07-2002 （ Page 4, 9 pages in total）

6. picture geometric adjustment

1) Apply the Philips standard testing pattern in normal status, then enter

menu 3, adjusting the following data to get the min-distortion.

HPOS6（Horizontal Center） PARA6 （Level） TRAP6 （Trapezia）

HSIZE6（Horizontal Size） CNRT6 （To p） CNRB6 （Bottom）

2) Apply the Philips standard testing pattern in normal status, then enter

menu 3, adjusting the following data to get the min-distortion.

HIGH6 (Height) VP60（Vertical Center） VLIN6（Linearity） VSC6（Vertical-S Correction） 7、 EHT/HEW ratio test：（test with PC program）

Instruments： EHT test meter，EHT test bar(1000:1)，adjustable power supply，virtual

DY( the same L value with CRT in production ).

Test means： Measure the EHT value V when Ib=0，HEW voltage value is V1(DC

voltage at 2 ends of C249).

Check means： apply PC test means，V/V1 should satisfy the requiments below：

EHT/HEW ratio

29185N6

(27F230T)

25185N6

(24F210T)

44-29RFLW-TS2A

A60LVY196X15(O)

1245 ±3% ( 1207 ～ 1282)

1256±3% ( 1218 ～ 1293 )

8、X rays over voltage protecting circuit test:

TV enter working mode，apply more than 27V DC voltage between two ends of

C249，the set should enter protecting mode，or check X rays protecting circuit.

No.：YF-Fk07-2002 （ Page 5, 9 pages in total）

9、PS line polarities test：

Connect follow the graphic below：

DC PS

- +

Sound reminder

DX 2.2k

PS socket M

TO F801

Plug the PS line onto the PS socket M, then touch any pin of F801 with the probe, the LED DX will shine at the moment, with sound reminder, or it is disqualification.

10、PS power test：(Random test)

Instruments： Power meter. Input signal pattern： Color bar，Sound 1KHZ ，100% modulation. Input signal intensity： ≥60dBuv (1 mV rms) Test points： find the graphic below Test means： Set the Brightness, CR to the highest, adjust the volume to make

the sound output to be 0.5W. Connect the power meter to test the power consumption. Transfer the set to be standby, and test the power consumption at the moment, which should meet the requirements below：

Model Power Standby power (120V)

29185N6 25185N6

114 W ± 10% 109 W ± 10%

< 1W < 1W

No.：YF-Fk07-2002 （ Page 6, 9 pages in total）

11、High voltage and Ib value limit test( random test ) Instruments： High voltage meter， Ib meter. Input signal pattern： White vertical Input signal intensity： 60dBuv (1 mV rms) Test means： Connect High voltage meter and Ib meter. Test voltage of different

Ib separately, It

should meet the requirements below：

Anode high voltage (kV)

25’ 29’

= 50µA

= 50µA & 1200µA

30.0 ± 1.0 30.0 ± 1.0

Diff. < 2 Diff. < 2

12、Heater voltage test ( random test ) Instruments ：RMS voltage meter Input signal pattern ： Philips test graphic Input signal intensity ：1 mVrms（60dBuV）to 50 mVrms

Connect the RMS voltage meter to the 2 ends of CRT glowers，test the heater voltage of highest CR and Brightness, It should meet：6.3±0.3Vrms

13、BTSC/SAP function test

BTSC/SAP do not need test，but BTSC/SAP decoder function should be tested normal or not.

14、CCD and VOL-CHIP function test

VOL-CHIP and CCD function test，please find the service manual in detail. 15、Initialization

Under the factory mode，press“SURR”button，the screen displays“WAIT”，

when the screen displays “OK”, the initialization finished,

You can enter the next working procedure.

EEPROM DATA:

FAC 01 FAC 02 FAC 02 FAC 03

Item Data Item Data Item Data Item Data RC * 80 HIGH5 1B/0D HIGH6* 1A/0E HPOS5 0C/0F

GC * 80 VP50 03/01 VP60 * 04/05 PARA5 10/11 BC * 80 VLIN5 0A/0B VLIN6* 0A/0B TRAP5 29/27 GD * 40 VSC5 0C/07 VSC6 * 0B/08 HSIZE5 1F/16 BD * 40 VBLK5 00/00 VBLK6 00/00 CNRT5 0A/08 VCEN5 32/33 VCEN6 33/35 CNRB5 06/08 VEHT5 03/03 HEHT5 03/03

FAC 03 FAC 04 FAC 05 FAC 06

Item Data Item Data Item Data Item Data HPOS6 * 10/14 CNTX 7F BRTC 40 ST3 20

PARA6 * 0F/16 CNTN 08 COLC 2C SV3 20 TRAP6 * 27/25 BRTX 20 COLP 00 SV4 19 HSIZE6* 20/16 BRTN 20 SCOL 07 SVD 19 CNRT6 * 0B/09 COLX 35 SCNT 0C ASSH 07 CNRB6 * 07/0D COLN 00 CNTC 51/4C SHPN 10 VEHT6 03/03 TNTX 28 TNTCT 40 SHPN 2A HEHT6 03/03 TNTN 28 TNTCV 40

No.：YF-Fk07-2002 （ Page 7, 9 pages in total）

FAC 07 FAC 08 FAC 09 FAC 10

Item Data Item Data Item Data Item Data MOD1 60 RFAGC * 25 V01 46 MODE4 22

MOD2 B0/30 BRTS 00 V25 6B MODE5 0B MOD3 F0 OSD 21 V50 75 MODE6 1F OPT 37 OSDF 53 V100 7F MODE7 C4 OPTM1 C0 CCD OSD 4A VOLMAX 32 MODE8 2D OPTM2 C0 CCD OSDF 65 CURTCEN A5 MODE9 02/0B HDCNT 00 TXCN 1F GATE 2A HSTOP FF RGCN 16 VOL-OUT 73

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