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Stihl BT 131, Instruction Manual

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Stihl BT 131 Instruction Manual Download Page 29

Simon/Gao

V59-CTYPE

GAOHL

20140906

Experience change

VIDEOCON

Rev:

DESCRIPTION

CHK/DATE             

APPD/DATE

V1.0

TUNER  AGC  

CLOSE TO TUNER 

CLOSE TO CHIP

CLOSE TO CHIP

CLOSE TO TUNER 

Each of these Vcc pins of TDA18275 is decoupled by a 

single capacitor (pin 19, 28, 31)

C10

0.1uF

R3

100

R4

0

R1

10K

C11
22nF

C2

27p

C3
27p

C13

0.1uF

C14

0.1uF

R2 220

R5 220

C

4

0

.

1

u

F

C

5

0

.

1

u

F

C

6

0

.

1

u

F

R8

100

R7

100

L2

120oHm@100MHz

C7

0.1uF

C1

10uF 10V

1

RFG

2

RFIN

3

RFG

4

TESTO1

5

XTSEL

6

TESTO2

7

GNDDIG

8

AS

9

S

C

L

1

0

S

D

A

1

1

T

E

S

T

I

1

1

2

X

T

A

L

P

1

3

X

T

A

L

N

1

4

T

E

S

T

I

2

1

5

V

T

1

6

C

P

17

XTOUT

18

GNDPL

19

VCCPL

20

CAPVCO

21

IFODP

22

IFODN

23

IFOAP

24

IFOAN

2

5

A

G

C

A

2

6

A

G

C

D

2

7

T

E

S

T

I

3

2

8

V

C

C

I

F

2

9

G

N

D

I

F

3

0

G

P

O

2

3

1

V

C

C

R

F

3

2

G

P

O

1

3

3

G

N

D

N1

TDA18275HN/N1

C8

27pF

C9

27pF

X1

16M

C

1

5

6

.

8

n

F

C

1

6

6

.

8

n

F

C

1

7

1

5

0

n

F

 

 

1

0

%

R6

2

2

0

C19

0.1uF

C20

0.1uF

L

3

2

2

0

n

H

 

1

2

0

m

A

 

5

%

L1

3

3

0

n

H

 

1

4

0

m

A

 

5

%

C21

120pF 50V

C22

120pF 50V

C

2

3

1

5

0

p

C24

100pF

C25

100pF

C26

NC

C

2

7

0

.

1

u

F

D1

BAV99

1

FRIN

2

GND1

3

GND2

4

GND3

5

GND4

M1

TUNER_TANG

3_3V_TUN

IF1

IF2

VIFP

VIFM

3_3V_TUN

3_3V_TUN

3.3VSTB

AGC

N16614253

N16614261

3_3V_TUN

3_3V_TUN

3_3V_TUN

AGC

IF1

IF2

N16613861

I2C-SCL

I2C-SDA

TV_AGC

Summary of Contents for BT 131

Page 1: ...CE MANUAL V59 C This Service manual is property of Videocon Industries Ltd M S VIDEOCON INDUSTRIES LIMITED 14Km Stone Paithan Road Aurangabad Village Chitegaon Taluka Paithan AURANGABAD 431105 MAHASHTRA INDIA ...

Page 2: ...2 V59 C SERVICE MANUAL SPECS REV DATE DESCRIPTION PREPARED BY VER 1 0 REV 1 0 20 1 2015 V59 C SERVICE MANUAL VK ...

Page 3: ...gram B Actual Chassis view C Chassis Specification 4 Connectors and Electrical Parameters A Connector Details B Critical component list 5 Panel Information A Panel Specification 6 Software Installation Procedure A SW loading through USB B SW Loading through Jig 7 Circuit Diagram 8 Trouble Shooting ...

Page 4: ...4 ...

Page 5: ...age interlocks with which receivers covered by this service manual might be equipped 6 Do not apply AC power to this instrument and or any of its electrical assemblies unless all solid state device heat sinks are correctly installed 7 Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground ...

Page 6: ...recautions 8 Minimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device 2 3 General Soldering Guidelines 1 Use a grounded tip low wattage soldering iron and appropriate tip size and shape that...

Page 7: ...the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC 2 4 2 Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bristle brush It is not necessary to re apply acrylic coating to the areas 2 5 Small Sig...

Page 8: ...mper wire on the copper pattern side of the circuit board Use this technique only on IC connections 1 Carefully remove the damaged copper pattern with a sharp knife Remove only as much copper as absolutely necessary 2 Carefully scratch away the solder resist and acrylic coating if used from the end of the remaining copper pattern 3 Bend a small U in one end of a small gauge jumper wire and careful...

Page 9: ...9 3 Chassis block diagram ...

Page 10: ...10 b Actual Chassis view V59C ...

Page 11: ...CINEMA SPORTS VIVID HI BRIGHT WHITE PEAK LIMITER YES Inbuilt BLACK STRETCH YES Inbuilt BLUE STRETCH YES Inbuilt DYN SKIN TONE FLESH TONE YES ZOOM MODE Normal 16 9 4 3 Full Direct Key ON REMOTE FAVOURITE COLOUR CONTROL NO PICTURE IMPROVEMENT YES Inbuilt DCDI YES Inbuilt MADI MODE YES CCS MODE Yes ADAPTIVE LUMA CONTROL NO ACTIVE COLOUR MANAGEMENT Yes Active color 3D ADAPTIVE CONTRAST AND COLOUR No A...

Page 12: ...CH MUSIC SOEN AUTO VOLUME LEVELLER YES AUDIO OUTPUT POWER RMS 2x10W 2W MUSIC MODE YES Eco Vision Audio Only REVERB NO STEREO PLAYBACK Yes BASS TREBLE BALANCE YES EQUALIZER 5 BAND INCREDIBLE STEREO NO SOUND BOOSTER NO LOUDNESS NO SURROUND NO VOLUME PP NO NO OF SPEAKERS 2 FRONT SPEAKER NO TWEETER NO WOOFER NO VOICE NO DYNAMIC BASS NO OMNI SURROUND NO EXTERNAL SPEAKER NO V CHIP NO SRS SRS TSXT sound ...

Page 13: ...LY SCREEN SAVER No CURTAIN EFFECT NO SCAN NO SORT NO QUICK VIEW YES FAVOURITE YES ALARM NO HOTEL MODE YES VOLUME LOCK YES CHILD LOCK YES In User Lock TUNING LOCK YES MAX VOLUME LOCK YES HELP NO SELF DEMO NO OSD TRASPARENCY NO OSD LANGUAGES ATV English SKY REMOTER NO RF REMOTE NO Full HD panel support YES CALENDAR NO SOURCE LOCK VIDEO LOCK YES In User Lock FRONT PANEL KEY LOCK YES GAME NO BLUE SCRE...

Page 14: ... CARE VIEW NO WORLD CLOCK NO VIDEO AND AUDIO DIAGNOSIS NO MFM NO CONNECTIVITY RF 1 AV IN FRONT SIDE 2 S VIDEO IN No DVD COMPATIBILITY YPbPr YCbCr 1 HDMI INPUT 4 IDTV INPUT NO PC VGA IN 1 PC AUDIO IN 1 EURO SCART IN NO USB INPUT 2 0 SUPPORT 2 BLUETOOTH NO DVI INPUT NO AV OUT 1 CVBS OUT EARPHONE SOCKET NO CORDLESS HEADPHONE NO OPTICAL OUT NO SMART CARD SLOT NO DIGITAL RF INPUT NO USB SUPPORT USB 2 0...

Page 15: ...TAGE 3 2V 3 27V 3 GND GND 0 0 4 KEY_1 KEY VOLTAGE 2 57V 2 57V 5 LED_R LED VOLTAGE 0 024V 4 96V 6 5V_SB 5VSB SUPPLY 3 3V 3 3V 7 LED_G LED_G 2 8V 0 024V 8 IR IR Signal 3 2V 3 2V Power Connector CN26 No Pin Connection Voltages Stand by Voltages ON Condition 1 12V 12V 12V 2 12V 12V 12V 3 GND 0V 0V 4 12V 12V 12V 5 GND 0V 0V 6 GND 0V 0V 7 5V 5 03V 5 03V 8 5V 5 03V 5 03V 9 5V_STB 5 08V 5 08V 10 GND 0V 0V...

Page 16: ...ition 1 VCC 0V 12V As per panel 2 VCC 0V 12V As per panel 3 VCC 0V 12V As per panel 4 VCC 0V 12V As per panel 5 GND 0V 0V 6 GND 0V 0V 7 LVTX_A_CH0P 1 1V 1 1V 8 LVTX_A_CH0N 1 1V 1 1V 9 LVTX_A_CH1P 1 1V 1 1V 10 LVTX_A_CH1N 1 1V 1 1V 11 LVTX_A_CH2P 1 1V 1 1V 12 LVTX_A_CH2N 1 1V 1 1V 13 GND 0V 0V 14 GND 0V 0V 15 LVTX_A_CLKP 1 1V 1 1V 16 LVTX_A_CLKN 1 1V 1 1V 17 LVTX_A_CH3P 1 1V 1 1V 18 LVTX_A_CH3N 1 1...

Page 17: ...0V 25AMP TVR10681KSY 1100043202 THERMISTER NTC SCK 6A 2 5E M 7 5MM L 5M 1100057520 C CER Y5P 1KV 2 2KPF K P5MM 1100093176 CAP CER 275VAC 330KPF K 15MM 1100098978 C CER Y5P 1KV 100PF K P5MM 1100105840 IC CHIP MQFN76 SiI9687ACNUC HDMI SW 1100105843 IC CHIP SOP8 MX25L3206D E M2I 12G NEW 1100106737 C ELCT 500V 100MFD M 20X36 P10MM 105 CKM 1100106760 IC CHIP EPLQFP 128Pin TSUMV59XUS Z1 1100107706 IC PW...

Page 18: ...time 50 000 Hours Minimum Receiving System Anlog PAL BG I DK NTSC 3 58 4 43 In playback only Channel Coverage VHF 2 12 UHF21 69 CATV X Z 2 S1 S41 Power supply AC 110 240V 50 60Hz Antenna Input Impedance 75 Ohms Unbalanced Power Consumption TYP 90W 115W MAX Audio Output RMS 10Watt x 2 Accessories Remote Handset User Guide Book Power Cord Optional Battery UM 3 AA 1 5V 2no ...

Page 19: ...Tool 20 1 Copy the SW bin file in USB to root directory 2 Rename the SW file name as 3 Keep the TV set in Power OFF condition 4 Plug in the USB drive in USB port of the TV 5 Turn ON the Mains power of TV set 6 Now after a few sec RED LED indicator of TV will start blinking indicating the SW is loading 7 After a few sec LED blinking will stop and SW loading is finished Then follow below steps A SW ...

Page 20: ...ll go to stand by and will again restart automatically in RF source 11 Then verify the modelwise Audio Video settings as per Design data in PLM Verify the SW date and version in Version info in Design data 12 Then press Shipping in Setup design menu by pressing OK key of remote after shipping set then Switch OFF the set from main power and again Switch ON The SW loading process Is complete ...

Page 21: ...pgrade SW or not Press left arrow key here The SW update will start and LED will start blinking indicating SW upgrade is in process 6 Also indicator screen will appear o screen showing SW loading progress Once SW update is started do not switch OFF the TV set 7 After SW update is complete the TV set will automatically go to stand by mode and will restart 8 Turn ON the TV set from stand by and foll...

Page 22: ...and will again restart automatically in RF source 12 Then verify the modelwise Audio Video settings as per Design data in PLM Verify the SW date and version in Version info in Design data 13 Then press Shipping in Setup design menu by pressing OK key of remote after shipping set then Switch OFF the set from main power and again Switch ON The SW loading process Is complete STEPS TO FOLLOW AFTER SW ...

Page 23: ...ode if press stand by key of remote then M Mode becomes OFF 3 Can not update SW through USB if set is permanently in Stand by In this case use MST jig to load SW 4 If required to load Videocon SW in SANSUI brand chassis with 5 If required to load SANSUI SW in Videocon brand chassis with ...

Page 24: ... socket SW loading jig is common with MST719 Jig MST Tool is also same as MST719 Step2 Kindly confirm pin configuration of Jig conn should be 5V 3 3V RXD TXD GND which is same as MST719 Jig Connect the Jig to chassis then Red LED indicator on Jig will glow if it is connected properly Step3 on your PC Tool version may be different ...

Page 25: ...ly then go to Device option in Jig and select the Chip from SPI list WIN25X32 or WIN25Q32 the device may differ than mentioned here Then open the MSTV tool and select Baud rate 11500 as shown below and select the COM Port confirm COM port from your Computer properties may be different for different PC COM Port and Baud Rate selection from MSTV Tool ...

Page 26: ...econnect lank Restore data Multi flashes Verify as these actions are not required 2 Kindly DO NOT SWITCH OFF TV Set or PC while SW loading or do not disconnect the Jig from PC while SW loading Step6 Then select option of ISP tool and after setting press RUN in Auto window then SW loading will start as shown below ...

Page 27: ...28 Step7 After Successful SW loading it will show PASS as shown in below window Step8 After Successful SW loading follow below steps for Shipping ...

Page 28: ...Clear EEPROM option and press OK key of remote 4 After Clear EEPROM the set will go to stand by and will again restart automatically in RF source 5 Then verify the modelwise Audio Video settings as per Design data Verify the SW date and version in Version info menu of Design data 6 Then press Shipping in Setup design menu by pressing OK key of remote then Switch OFF and again Switch ON the SET The...

Page 29: ...EL 6 TESTO2 7 GNDDIG 8 AS 9 SCL 10 SDA 11 TESTI1 12 XTALP 13 XTALN 14 TESTI2 15 VT 16 CP 17 XTOUT 18 GNDPL 19 VCCPL 20 CAPVCO 21 IFODP 22 IFODN 23 IFOAP 24 IFOAN 25 AGCA 26 AGCD 27 TESTI3 28 VCCIF 29 GNDIF 30 GPO2 31 VCCRF 32 GPO1 33 GND N1 TDA18275HN N1 C8 27pF C9 27pF X1 16M C15 6 8nF C16 6 8nF C17 150nF 10 R6 220 C19 0 1uF C20 0 1uF L3 220nH 120mA 5 L1 330nH 140mA 5 C21 120pF 50V C22 120pF 50V ...

Page 30: ...1 2 3 4 5 6 7 8 XS105 CON08 2 0 R119 100 C101 0 1uF D104 ICVL0518 D105 ICVL0518 D106 ICVL0518 R131 10K R134 10K R135 75 R130 100 R132 10K R133 10K D101 ICVL0518 D102 ICVL0518 D103 ICVL0518 1 2 3 4 5 6 XS101 AV3_WRY D110 ICVL0518 D111 ICVL0518 D112 ICVL0518 1 GND 2 V G_AV1_001G40 D113 ICVL0518 R103 10K R106 10K R101 75 R102 100 R104 10K R105 10K D107 ICVL0518 D108 ICVL0518 D109 ICVL0518 R143 NC 0 C...

Page 31: ...202 VGA R216 4 7K R215 4 7K 1 2 3 4 XS201 CON04 2 0 USB USB 4 GND 3 USB1 2 USB1 1 5V 5 5V 6 USB2 7 USB2 8 GND XS204 G_USB_2 D201 ICVL0518 D202 ICVL0518 D203 ICVL0518 D204 ICVL0518 D205 ICVL0518 D206 ICVL0518 D207 ICVL0518 D208 ICVL0518 D209 ICVL0518 D210 ULCE0505 D211 ULCE0505 D212 ULCE0505 D213 ULCE0505 R201 5 1 R202 5 1 R203 5 1 R204 5 1 C204 100uF USB2 DN USB2 DP 5VSTB USB1 D USB1 D VGA HS VGA ...

Page 32: ...2_SHIELD 5 DAD1_SHIELD 8 DAD0_SHIELD 7 DAT0 9 DAT0 4 DAT1 6 DAT1 1 DAT2 3 DAT2 10 CLK 12 CLK 11 CLK_SHIELD 13 CEC 14 NC XS304 HDMI_J R304 100 R303 100 D347 ULCE0505 D346 ULCE0505 D345 ULCE0505 D344 ULCE0505 D343 ULCE0505 D342 ULCE0505 D339 ULCE0505 D350 ULCE0505 D351 ULCE0505 D337 ICVL0518 D335 ULCE0505 C308 0 1uF C309 10uF 10V R321 100 5 IN 4 EN 1 OUT 2 GND 3 FLG N304 AP2171WG 1 2 R319 100K R311 ...

Page 33: ...109 AVDD_DDR 94 SCK 116 GND_EFUSE 95 SDI 110 SAR0 GPIO75 107 DDCA_CK 108 DDCA_DA 129 E PAD 27 VSYNC1 34 AU33 44 AUR5 43 AUL5 56 AVDD_DDR 87 VDDC 117 HOTPLUGD 118 RXCKN_D 119 RXCKP_D 120 RX0N_D 121 RX0P_D 123 RX1N_D 124 RX1P_D 122 DDCDD_DA 126 RX2N_D 127 RX2P_D 125 DDCDD_CK 39 AUL3 40 AUR3 102 USB1_DP 101 USB1_DM 103 GPIO64 130 MASK1 131 MASK2 132 TEST N401 TSUMV59MS C435 1uF 0402 6 3V C434 1uF 040...

Page 34: ... 2 2uF 16V 1 AH501 O_PCBHOLE_3 5MM 1 AH502 O_PCBHOLE_3 5MM 1 AH503 O_PCBHOLE_3 5MM 1 AH504 O_PCBHOLE_3 5MM 1 S 2 S 3 S 4 G 5 D 6 D 7 D 8 D N501 WPM9435 C526 100uF R523 27K 1 R524 5 1K 1 C527 0 1uF C528 1uF C529 NC 1000p R525 75k L501 6 8uH 2A C530 2 2uF 16V C531 4 7uF 10V C532 0 1uF R526 100K 3 IN 5 EN 4 FB 2 SW 6 BST 1 GND N508 mp1470 G S D Q504 ME2345A C533 220uF 16V R519 27K 1 R520 5 1K 1 C534 ...

Page 35: ...CN 51 R0XCP 52 R0XON 53 R0X0P 54 R0X1N 55 R0X1P 56 R0X2N 57 R0X2P 58 AVDD10 59 VDD33 60 R1XCN 61 R1XCP 62 R1X0N 63 R1X0P 64 R1X1N 65 R1X1P 66 R1X2N 67 R1X2P 68 R2XCN 69 R2XCP 70 R2X0N 71 R2X0P 72 R2X1N 73 R2X1P 74 R2X2N 75 R2X2P 76 VDD33 77 EPAD N602 SII9687A R613 33 R614 33 R619 33 C601 0 1uF 1 2 C602 10uF 10V R610 10K R609 4 7K R618 4 7K Q601 LMBT3904 R602 1K R601 10K R615 10K R616 10K R621 NC 1...

Page 36: ...S 1 GND 6 OUT 5 VDD N702 OB2273A C728 220p C729 1nF 50V B E C Q707 LMBT3906 R756 470 R759 20 C732 0 47uF 50V R765 NC 2 2 C730 NC B E C Q705 NC LMBT3904 D707 NC FR207 R749 100K 2W R750 NC R751 NC R752 NC R753 NC 1 2 4 3 N708 EL817 1 2 4 3 N707 EL817 R766 NC 1K C726 NC 47uF 50V D714 SF59AG D715 SF59AG C739 100P 1KV R769 68 R768 68 R772 68 R771 68 C740 NC C741 33uF 250V R785 510 D709 BAV70 R788 3 3K ...

Page 37: ...HK DATE APPD DATE V59 CTYPE 20140906 V1 0 Simon Gao 1 2 3 XS802 NC CON03 2 0 1 2 3 4 5 6 7 8 XS801 CON08 2 0 1 2 3 4 5 6 7 8 9 10 XS801A NC CON10 2 0 1 2 3 XS803 NC CON03 2 0 R823 0 NC 1 2 XS804 CON02 LED 60 200V_LED LED LED 60 200V_LED 60 200V_LED LED ...

Page 38: ...1K R945 10 C935 10uF 10V TPAS5707 1 OUT_A 2 PVDD_A 6 SSTIMER 5 GVDD_OUT 4 BST_A 3 PVDD_A 11 PLL_FLTP 10 PLL_FLTM 9 AVSS 8 NC 7 OC_ADJ 12 VR_ANA 13 AVDD 14 FAULT 15 MCLK 16 OSC_RES 17 DVSSO 18 VR_DIG 24 SCL 23 SDA 22 SDIN 21 SCLK 20 LRCLK 19 PDN 40 PVDD_C 41 PVDD_C 42 BST_C 43 BST_B 44 PVDD_B 45 PVDD_B 46 OUT_B 47 PGND_AB 37 PGND_CD 38 PGND_CD 39 OUT_C 25 RESET 30 AGND 29 GND 28 DVSS 27 DVDD 26 STE...

Page 39: ...ir the circuit Check F701 RT701 D701 D704 Or N701 peripheral Circuit NG NG Check N709 N703 peripheral circuit supply Check X701 Power Input circuit OK OK OK Check the power supply circuit See Power supply Trouble LED no bright NG NG Check 5VSTB Check Q504 for 5V Check N506 for 1 8V to DDR Check N504 1 25VSTB Pins of N401 Check N507 3 3VSTB Pins of N401 Check N110 for 1 25VSTB Check N121 for 3 3VST...

Page 40: ... is subject to change without notice 21 3 Display Trouble black screen Check if VDD 17V of N702 CheckD714 D715 N702 N704 peripheral circuit OK Check LED VCC Check ADJ PWM VCC is low NG OK NG NG Check Q708 BL ON OFF peripheral Circuit Repair the circuit Check The Panel OK ...

Page 41: ... 22 4 Display Trouble abnormal screen Check if the LVDS cable is right and if well connected with the board NG 1 reconnect the cable 2 Change the LVDS cable OK OK NG NG OK Check if the LCD panel is OK Change panel Check if between the LVDS jack and N401 is well soldered Repair the damage circuit Change N401 ...

Page 42: ...if Speaker ON OFF set or if mute function is off Check external audio equipment Set it ON Check if the voltage 1 5V on pin13 14 of N901 Check N901 or Change N901 Check if The Wave ON pin4 of N902 is OK NG OK Check N902 peripheral Circuit Check the voltage 6 4V on pin1 46 39 36 of N903 Check N903 N902 peripheral circuit NG OK OK OK Check if XS902 XS901 is OK Repair the circuit Change Speaker NG ...

Page 43: ...annel be find Check the RF cable for RF signal NG OK Repair external RF equipment Check the voltage 3_3V_TUN on N1 NG Repair the power net to this pin Check R7 R8 for I2 C data Check IF_AGC voltage 0 2 2V Repair I2 C net Repair AGC net Check the R2 R5 for IF NET OK OK NG Check the Software Repair IF net NG Change N1 OK Update the Software NG ...

Page 44: ...t notice 25 7 Function Trouble PC 1 No signal 2 Image is not stable OK Check if VS signal HS signal are regular Repair the circuit of VS HS It s an unsupported mode NG Color fade Check R G B input signal Repair R G B input signal net Change N401 NG OK Picture is not in center Do Auto adjust process ...

Page 45: ...HDMI I2 C Check the voltage 5V for hot plug PIN19 of HDMI Repair N401 HDMIA in Circuit Repair the circuit of N602 or peripheral Circuit CVBS YPbPr no signal 1 Check CVBS IN Y IN line Connect is OK 2 Change N401 YPbPr Color Bad 1 Check Pr Pb line Connect is OK 2 Check Pr Pb net 3 Change N401 Check if The HDMI terminal is HDMI4 HDMI no signal no sound 1 HDMI terminal is badly soldered 2 Check HDMI I...

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