Durabrand HPS-2909 Manuale utente

Service Manual

Model HPS-2909

CODE: 1.01.72342.51

HPS-2909

INDEX

1. GENERAL.....................................................................................................................2

1.1 PRODUCT FRONT VIEW...........................................................................................2

1.2 PRODUCT BACK VIEW.............................................................................................3

1.3 REMOTE CONTROL...................................................................................................4

2. TECHINICAL SPECIFICATION.................................................................................5

2.1 AUDIO............................................................................................................................5

2.2 POWER SUPPLY........................................................................................................8

2.3 FRAME GEOMETRIC...............................................................................................11

2.4 PURITY........................................................................................................................18

2.5 CONVERGENCE.......................................................................................................18

2.6 VIDEO..........................................................................................................................19

3. CALIBRATION GUIDE.............................................................................................22

3.1 IMPORTANT RECOMENDATIONS.......................................................................23

3.2 DEFINITION OF THE REGISTERS........................................................................24

3.3 GEOMETRY OF THE IMAGE..................................................................................27

3.4 WHITE BALANCE.....................................................................................................27

3.5 SCREEN ADJUSTMENT.........................................................................................28

3.6 AGC ADJUSTMENT.................................................................................................28

4. MATERIAL LIST........................................................................................................29

5. ELECTRICAL SCHEME...........................................................................................44

5.1 MAIN AND REMOTE CONTROL PCB..................................................................45

6. SILKTOPS AND SOLDERS....................................................................................46

6.1 MAIN PCB....................................................................................................................46

6.2 REMOTE CONTROL PCB........................................................................................48

7. EXPLODED VIEW......................................................................................................50

8. BLOCK DIAGRAM......................................................................................................51

HPS-2909

1. GENERAL

1.1 Product Front View

1.1.1 Front Panel Functions and Indications

1Master 8Channel +

2Standby 9Menu

3Remote control sensor 10 AV

4Power 11 Video IN 1

5Volume - 12 Audio IN 1 L (mono)

6Volume + 13 Audio IN 1 R

7Channel -

HPS-2909

1.2 Product Back View

a) Back Panel Functions and Indications

1Subwoofer OUT 5AV-2 IN audio R

2AV-2 IN video 6Audio OUT R

3AV-2 IN audio L/Mono 7Audio OUT L

4S-Video IN AV-2 8AERIAL Cable

b) Functions

Image Sound

Menu Functions Functions Install

VHF channel from 2 to13

UHF channel from 14 to 69Channel Cable TV channel from 1 to 125

c) Characteristics

Product Dimensions 672X610X515 mm

Weight 34,0 kg

d) Supply

Unit Nominal Min. Max.

Supply Voltage ( FREE VOLTAGE ) 120 - -

Vac 240 - -

Supply Frequency Hz 50/60 - -

Stand by W- - 3

Consumed Power In Operation W- - 125

HPS-2909

1.3 REMOTE CONTROL

1.3.1 Remote Control Functions

1Power 9CC

2Sleep 10 100+

3AP 11 Menu

4Volume + 12 Volume -

5Channel - 13 Channel +

6Numerical keys 14 OSD/OUT

7P.Channel 15 AV

8Stereo SAP 16 Mute

HPS-2909

2. TECHINICAL SPECIFICATION

Procedure to check up color TV electrical parameters

2.1 Audio

2.1.1 Output power at 10% THD

Connection through external video and audio input

a) TV setup in “PP” condition.

b)Connect a color bar generator (PAL-M system) to video input.

c) Connect an audio generator with 500mVAC level and 400Hz sinusoidal

frequency to audio input.

d)Connect to the power amplifier output a resistive load with equivalent Ohm

value of speaker used on the tested TV.

e) Connect a AC Voltmeter/Distortion Meter to the resistive load and increase

volume control until Distortion Meter reading be 10%. Measure voltage on

the resistive load and calculate power through next equation:

P = (V²/R)

Where “V” is voltage in VOLTS, “R” is resistive load in OHMS and “P” is

power in WATTS.

Mínimum Nominal Maximum Unit

4,50 5,00 -W

2.1.2 Residual Audio

a) TV setup in “PP” condition.

b)Apply 60dBµV signal (frequency and channel factory defined) to antenna

input modulated with white pattern at 87,5% and audio signal with 400Hz

frequency modulated in FM with 25kHz deviation.

c) Connect an oscilloscope to power amplifier output (connect for the

speaker).

d)Adjust volume to minimum.

e) Use the oscilloscope to measure peak-to-peak voltage, in Volt peak-to-peak

(Vpp).

Minimum Nominal Maximum Unit

- - 500 mVpp

HPS-2909

2.1.3 Audio frequency response in TV’s without tone control

a) TV adjustment condition:

üBalance center

üBass center

üTreble center

b)Connect a color bar generator (PAL-M system) to video-in.

c) Connect to the audio input TV - an audio generator adjust to 500 mVac

level, and sine wave 1kHz.

d)Connect to the output power amplifier a resistive load with the same value

of the impedance speaker.

e) Connect na AC voltmeter over the resistive load and adjust volume control

until obtain 1 Vac ).

f) Realign the audio generator to 100 Hz sine wave at the same level ( 500

mVac).

g)Read the new voltage in the resistive load and calculate the change in dB

through next equation:

A(100Hz)=20 log (VL/VREF)

The result is defined in“Decibel units “

h)Readjust the audio generator frequency to10 kHz at the same level.

i) Read the new voltage Vh at the resistive load and calculate the change in

dB through the next equation:

A(10kHz)=20logVH/VREF

Condition Minimum Nominal Maximum Unit

100Hz 2,00 6,00 10,00 dB

10kHz 0,00 +4,00 +8,00 dB

2.1.4 Áudio frequency response for the stereo television set with tonality

control

a) Repeat the above procedures (item 3) for the following additional

conditions:

Condition Minimum Nominal Maximum Unit

Bass control in max. position 100Hz +16,00 +20,00 +25,00 dB

Treble control in the meddle.10kHz -5,00 +7,00 +10,00 dB

Bass control in the min position. 100Hz -10,00 -3,00 +3,00 dB

Treble control in the meddle.10kHz -5,00 +7,00 +10,00 dB

Bass contr. in the meddle post.. 100Hz +4,00 +10,00 +15,00 dB

Treble control int the min pos.. 10kHz -15,00 -5,00 +10,00 dB

Bass contr. in the meddle pos. 100Hz +4,00 +10,00 +15,00 dB

Treble contr in the max. pos.. 10kHz +10,00 +15,00 +25,00 dB

HPS-2909

2.1.5 Channel separation in Stereo reception for the stereo television set

a) TV setup in PP condition.

b)Apply a 60dBmV signal (frequency and channel factory defined) with 88%

video modulation and audio stereo carrier modulation within the standard

“MTS” (BTSC).

c) Connect an AC double voltmeter at the audio output L-R.

d)Adjust the volume control to max. and the tremble, bass and balance to

middle position.

Note:

üDisconnect the speakers for more comfortable work.

e) Adjust the stereo generator for left channel only – with 30% modulation of

300 Hz sine wave and 7.5 kHz deviation.

f) Read the Double Voltammeter value Vac corresponding of Left and Right

channel and calculate the stereo separation trough the equate:

Sep (300Hz) L→R=20 log (VL/VR)

g)Adjust the stereo generator for left channel only – with 30% modulation of

3kHz sine wave and 7.5 kHz deviation.

Sep (3kHz) L→R=20 log (VL/VR)

i) Repeat the procedures e, f and g, and now select Right channel only, at the

same conditions above mentioned.

Sep(300Hz) R→L=20 log (VR/VL)

Sep(3kHz) R→L=20 log (VR/VL)

Condition Minimum Nominal Maximum Unit

Sep(300Hz) L →R15,00 - - dB

Sep(3kHz) L→R15,00 - - dB

Sep(300Hz) R→L15,00 - - dB

Sep(3kHz) R→L15,00 - - dB

2.1.6 Output and distortion level of S.A.P. signal

a) TV setup in PP condition.

b)Apply a 60dBµV signal ( Frequency and channel factory defined ) with 88%

video modulation, and Stereo / S.A.P audio signal carrier in accordance of

standard “MTS” (BTSC).

c) Connect na AC volt-distortion-meter at the Left channel.

d)Adjust the volume control to max. and the tremble, bass and balance to

middle position.

Note:

üDisconnect the speakers for more comfortable work.

HPS-2909

e) Adjust the Stereo/SAP generator for 400 Hz sine wave and 100%

modulation.

f) Active the SAP function in the Test Television.

g)Read Vac at the AC volt-distortion-meter.

h)Repeat all above procedures, connecting the volt-distortion-meter at the

Right channel

Minimum Nominal Maximum Unit

Output Level 450,00 500,00 550,00 mVAC

Distortion (THD) 0,20 1,00 1,50 %

2.1.7 AM Rejection

a) Connect at the IF sound input a FM generator adjust to 4.5 MHz modulated

with 400 Hz sine wave and +/- 25 kHz deviation and 90 dBuV level.

b)Connect na AC voltmeter in the audio detector output (after the emphasis

circuit) and read the VFM tension.

c) Connect at the IF sound input a AM generator pre-adjust to 4.5 MHz 30%

modulated with 400 Hz sine wave, and 90 dBuV level.

d)Read the Vam value in the voltmeter.

AMrejection will now be calculated by the equation:

RejAM = 20 log(VFM/VAM)

Note:

üBecause this parameter is designed to define only the

one circuit TV perform, the startup conditions adjust and

what’s circuits will be supplied, it will be defined

separately for each one model.

Minimum Nominal Maximum Unit

30,00 40,00 60,00 dB

2.2 POWER SUPPLY

2.2.1 Consume

Consume

a) Connect the TV under test through a electronic wattmeter at the

220Vac/60Hz line.

b)Turn-on the TV set and apply a 60dBµV ( the preferred channel must to be

defined by the production unit), modulated with a 88% video signal white

pattern, and a±25 kHz deviation FM carrier with a 400Hz sine wave audio

signal.

c) Adjust for max. the bright, contrast and volume controls, and read the Sink

Power show at the wattmeter.

d)Active Standby mode and read again the Sink power.

HPS-2909

e) Repeat all below procedures, connecting now the television under test to a

110Vac/60 Hz line.

Condition Minimum Nominal Maximum Unit

117VAC“PP” - - 125,00 W

117VACStand-By - - 3,00 W

234VAC“PP” - - 125,00 W

234VACStand-By - - 3,00 W

2.2.2 Main Power Supply

a) Connect the TV set under test to 110Vac/60Hz line.

b)Turn on the TV and apply a 60dBµV signal (frequency and channel defined

by factory) 88% modulated with white pattern and audio signal with 400Hz

frequency modulated in FM with ±25kHz of deviation.

c) Adjust the TV to a “PP” condition.

d)Utilizing a electronic DC voltmeter ( over 10 M input impedance), read the

next point in the power supply.

Condition Test Point Minimum Nominal Maximum Unit

“PP” 117VAC +B (Cathoe of D807) 130,50 132,50 134,50 VDC

“PP” 117VAC Áudio (Cathode of D808) 20,00 22,00 24,00 VDC

“PP” 117VAC Tuner (Cathode of DZ101) 30,00 33,00 36,00 VDC

“PP” 117VAC +5V (Emitter of Q101) 4,50 5,00 5,50 VDC

“PP” 117VAC +3V3 (Emitter of Q804) 3,00 3,30 3,60 VDC

“PP” 117VAC +8V6 Áudio (Emitter of

Q805) 8,00 8,60 9,00 VDC

“PP” 117VAC +8V Video (Cathode of

DZ807) 7,60 8,00 8,60 VDC

2.2.3 Main Power Supply Regulation with fluctuation of the line

Repeat the procedure of the item 1 when the television is connected to the

electric net with 100VAC/60Hz and also 220VAC/60Hz.

Condition Test Point Minimum Nominal Maximum Unit

“PP” 240VAC +B (Cathode of D807) 130,50 132,50 134,50 VDC

“PP” 240VAC Áudio (Cathode of D808) 20,00 22,00 24,00 VDC

“PP” 240VAC Tuner (Cathode of DZ101) 30,00 33,00 36,00 VDC

“PP” 240VAC +5V (Emitter of Q101) 4,50 5,00 5,50 VDC

“PP” 240VAC +3V3 (Emitter of Q804) 3,00 3,30 3,60 VDC

“PP” 240VAC +8V6 Áudio (Emitter of

Q805) 8,00 8,60 9,00 VDC

“PP” 240VAC +8V Vídeo (Cathode of

DZ807) 7,60 8,00 8,60 VDC

Indice

Altri manuali Durabrand TV

Durabrand

Durabrand DCT2704R Manuale utente

Durabrand

Durabrand DCT2703R Manuale utente

Durabrand

Durabrand DBTV1300 Manuale utente

Durabrand

Durabrand DWT1905 Manuale utente

Durabrand

Durabrand DCT1304R Manuale utente

Durabrand

Durabrand DBTV1341 Series Manuale utente

Durabrand

Durabrand DCF2003 Manuale utente

Durabrand

Durabrand DCT1303R Manuale utente

Durabrand

Durabrand DWT2405 Manuale utente

Durabrand

Durabrand DCT1303R Manuale utente

Durabrand

Durabrand DCT3203 Manuale utente

Durabrand

Durabrand DCT3203 Manuale utente

Durabrand

Durabrand DCT1904R Manuale utente

Durabrand

Durabrand DWT1905 Manuale utente

Durabrand

Durabrand BH2004D Manuale utente

Durabrand

Durabrand TV-5 Manuale utente

Durabrand

Durabrand DCT2405R Manuale utente

Durabrand

Durabrand DWT2704 Manuale utente

Durabrand

Durabrand CB130DR8 Manuale utente

Durabrand

Durabrand BH2004D Manuale utente

Durabrand

Durabrand DCT2703 Manuale utente

Durabrand

Durabrand DWT1304 Manuale utente

Durabrand

Durabrand HPS-2971 Manuale utente

Durabrand

Durabrand DCF2703 Manuale utente

Manuali TV popolari di altre marche

Philips

Philips Colour Television Manuale utente

Toshiba

Toshiba 27A10 Manuale utente

Philips

Philips 42PF9630A/37 Manuale utente

Hitachi

Hitachi 32FX48B Manuale utente

DAEWOO ELECTRONICS

DAEWOO ELECTRONICS DTQ-14V1FC Manuale utente

Changhong Electric

Changhong Electric uhd55b6000is Manuale utente

Philips

Philips Matchline 21CE7551 Manuale utente

Panasonic

Panasonic Genus TX-G10 Manuale utente

Toshiba

Toshiba 19A20 Manuale utente

Philips

Philips 25PT4523-16 Manuale utente

Sony

Sony XBR-100Z9D Manuale utente

Philips

Philips PR0930X3 Manuale utente

Philips

Philips Brilliance 231P4QPY Manuale utente

Samsung

Samsung 55S9 B Series Manuale utente

Philips

Philips 32HF9385D Guida alla risoluzione dei problemi

Sharp

Sharp LC-40FI5012E Manuale utente

Loewe

Loewe Table Stand Reference 55 Manuale utente

Philips

Philips 32PFH5300 Manuale utente