Hisense 32LD846HT Service Manual Download Page 42

Page: 42 / 43

TUNER

靠近

MSD309

放置

close together

SAW Drive-----NC

靠近

tuner

放置

40mA

closed to tuner

280mA

closed to tuner

靠近

tuner

放置

靠近

tuner

放置

TUNER POWER

V21

靠近

tuner RFAGC

脚放置

RF AGC Switch

IF demodulator I2C address is 0x10

VIFM

VIFP

IF_TV

5V_B1

5V_B2

T1_3.3V

T2_1.2V

TV+

TV_CVBS

SIFPOUT

TV-SIFP

TV-SIFM

#IF_OUT
IF_OUT

T_IFAGC

#IF_OUT

5V_B1

IF_OUT

5V_B2

IF_TV

T_RFAGC

TV_CVBS

T_IFAGC

T_RFAGC

T_IFAGC

T_RFAGC

5V_B1
IF_TV

T_IFAGC

+12V

VIF_12V

3.3V_TUNER

1.2V_TUNER

T1_3.3V

T2_1.2V

5VAIN

+12V

5V_Tuner

5V_B2

5V_B1

5V_TUNER

3.3VA

5V_TUNER

T1_3.3V

3.3V_TUNER

5VAIN

1.2V_TUNER

3.3V_TUNER

VIFM

VIFP

T_SCL

T_SDA

TV+

TV-SIFP 2

TV-SIFM 2

#IF_OUT

2,8

IF_OUT

2,8

Demod_RST 2,8

IF_OUT

2,8

T_SCL

T_SDA

#IF_OUT

2,8

T-IF-AGC

RF_AGC_SEL 2

RF_AGC_T 2

T_SCL

T_SDA

#IF_OUT

2,8

IF_OUT

2,8

Title

Size

Document Number

Rev

Date:

Sheet

TUNER

1.0

MMSB123X

Wednesday, February 23, 2011

Title

Size

Document Number

Rev

Date:

Sheet

TUNER

1.0

MMSB123X

Wednesday, February 23, 2011

Title

Size

Document Number

Rev

Date:

Sheet

TUNER

1.0

MMSB123X

Wednesday, February 23, 2011

R397 0R

C280

100n/16V

C280

100n/16V

VI4603/NC

ANT_PWR

Vcc1

RAGC

Vcc2

NC5

NC6

NC7

VTS

NC9

SCL

SDA

GND

RF AGC

NC14

XTO

NC16

IF AGC EXT

NC18

NC19

IF+

IF-

C252
100u/16V

R404

47R

R404

47R

V27
MMBT3904LT1

W1/NC

C271

100n/16V

C271

100n/16V

R384

10k

R384

10k

VI4607

ANT_PWR

Vcc1

RAGC

Vcc2

Vsync

Reset

Vcc3

VTS

CAS

SCL

SDA

GND

RF AGC

Vcc4

XTO

CVBS

IF AGC EXT

Audio

SIF

IF+

IF-

C277

100u/16V

C277

100u/16V

R401
220R

C257

100n/16V

C257

100n/16V

C295

100n/16V

C295

100n/16V

R389
10k

R394
10k

R405

R383
10k

C267
100n/16V

N24

AZ1117-1.2

N24

AZ1117-1.2

ADJ

VOUT

VIN

VOUT

R375
680R

C296

2.2u/10V

C296

2.2u/10V

C266

100u/16V/NC

C266

100u/16V/NC

V26
MMBT3904LT1

C281 100n/16V

N22

HS8601/NC

N22

HS8601/NC

IN2

OUT1

GND

OUT2

IN1

R382

10k

R382

10k

L32
BLM18PG121SN1

R378

10k

R378

10k

N21

CW78D05CZ

N21

CW78D05CZ

GND

Vout

Vin

R427

0R/NC

R427

0R/NC

R393

100R

R393

100R

C297

100n/16V

C297

100n/16V

R402
75R/NC

V22

MMBT3904LT1

V22

MMBT3904LT1

R372

300R

R372

300R

C282 100n/16V

V21

MMBT3906LT1/NC

V21

MMBT3906LT1/NC

C255

2.2u/10V

C255

2.2u/10V

C270

1n/50V

C270

1n/50V

C259

10n/50V/NC

C259

10n/50V/NC

L29
NC/3.3 uH

C258

10n/50V

C258

10n/50V

C298

2.2u/10V

C298

2.2u/10V

R398

47R

R398

47R

C253

1n/50V

C253

1n/50V

VA1P1BF8402/NC

NC3

SDA

SCL

DIF_OUT-

IF_AGC

GND

NC1

NC2

+B_5V

AIF_OUT

GND

C261 100n/16V

R403

0R/NC

R403

0R/NC

R381

33R

R381

33R

C299

100n/16V

C299

100n/16V

R425

0R/NC

R425

0R/NC

C269

2.2u/10V

C269

2.2u/10V

C276

100u/16V/NC

C276

100u/16V/NC

R400
10k

C254

100n/16V

C254

100n/16V

V24

MMBT3904LT1

V24

MMBT3904LT1

L30
BLM18PG121SN1

R386
22R

L28
0.82 uH

R406

C300

100n/16V

C300

100n/16V

V23

MMBT3906LT1/NC

V23

MMBT3906LT1/NC

R396

10k/NC

R396

10k/NC

C273
47n/16V

C249

2.2u/10V

C249

2.2u/10V

C262 100n/16V

R371
10R/2W

L31
BLM18PG121SN1

C301

100u/16V

C301

100u/16V

R380
100k

C278

2.2u/10V

C278

2.2u/10V

C272 100u/16V

R426

V25
MMBT3904LT1

L26
BLM18PG121SN1

R370
10R/2W

R392

100R

R392

100R

R379

22R

R379

22R

R385

N23

LD1117A-3.3AZ1117H-3.3

N23

LD1117A-3.3AZ1117H-3.3

ADJ

VOUT

VIN

VOUT

C247

1n/50V

C247

1n/50V

R374
6.8k

C256

47n/16V

C256

47n/16V

C250
10u/25V

C274

100u/16V/NC

C274

100u/16V/NC

R376

R387
100k

C248

100n/16V

C248

100n/16V

C251
100n/16V

R390
NC/390R

C279

1n/50V

C279

1n/50V

R373

300R

R373

300R

R377

0R/NC

R377

0R/NC

C268
10u/16V

C275

100u/16V/NC

C275

100u/16V/NC

R388

10k

R388

10k

L27
BLM18PG121SN1

R399
100R/NC

R369

C260 10n/50V

Summary of Contents for 32LD846HT

Page 1: ...LCDTelevision Service Manual Chassis MSD309PX Ver 1 0 Hisense Electric Co Ltd March 2011...

Page 2: ...Diagram 13 3 Factory Service OSD Menu and Adjustment 15 3 1 To enter the Factory OSD Menu 15 3 2 Factory OSD Menu 15 4 Software Upgrading 17 4 1 Upgrading with the ISP_TOOL 17 4 2 Upgrading with the U...

Page 3: ...signed for the purpose The special tools should be used when and as recommended It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order t...

Page 4: ...racteristics may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from Hisense Hisense assumes no liability expres...

Page 5: ...blade exposure To prevent electrical shock match wide blade or plug to wide slot fully insert 1 1 4 When replacement parts are required be sure to use replacement parts specified by the manufacturer...

Page 6: ...wer Continuing to use the product may cause fire or electric shock 5 If the product emits smoke and abnormal smell or makes an abnormal sound immediately turn off the power Continuing to use the produ...

Page 7: ...e safety of the product and the servicing work Be sure to follow these instructions Before starting the work secure a sufficient working space At all times other than when adjusting and checking the p...

Page 8: ...cuit board be sure to remove static electricity from your body before handling the circuit board Be sure to handle the circuit board by holding the large parts as the heat sink or transformer Failure...

Page 9: ...and cables removed for servicing purposes have all been returned to their proper locations in accordance with the original setup The lightning flash with arrowhead symbol within an equilateral triang...

Page 10: ...10 2 Product Specifications 2 1 Specifications 32 Inch 42 Inch NOTE The above Specifications are reference only other models refer to the actual User manual Please...

Page 11: ...11 2 2 Main Board Board 1 Panel have not 120HZ refurbish ratio Main IC MSD309PX L V D S Y PB PR L R VGA PC Audio IN Cable HDMI Headphone HDMI S Video AV1 Air USB AV2 AV OUT Coaxial...

Page 12: ...12 Board 2 Panel have 120HZ refurbish ratio Note The above Main board images are reference only different models refer to the actual units to determine the boards LVDS Board 120HZ...

Page 13: ...13 2 3 Wiring Diagram LTDN32V68NAM 14 pin 5 pin 14 pin Note The above Wiring Diagram is reference only different models refer to the actual units to determine the connectors...

Page 14: ...DV1 JK ROH HX2 2X20KLB300P LG 4 ROH NO LTDN32V88NAM T315HW04VD JK ROH HX2 2X20KLB350 CMO 1 ROH NO LTDN42V86NAM HC420EF E01 ROH HX2 2X20KLB600P LG 2 ROH NO FFC 521 51P 2A ROH LTDN40K26GAM LTA400HF24 JK...

Page 15: ...te Note 1 In the Factory Menu item Function TOFAC you can select M or U default is U M Means you can enter factory mode with factory RC or user RC U Means you can enter factory mode only with user s R...

Page 16: ...Picture Mode Audio Mode Picture Curve Audio Curve SSC Adjust Saving Mode Overscan Not Stand Factory Menu White Balance Auto Calibrate Function Init Test Pattern Function TOFAC M or U Power Mode Save S...

Page 17: ...rd to the TV use VGA interface or the RS232 4 pin the other USB port to the compute 4 1 2 Install the ISP_TOOL4 5 0 4 only for the first time update 1 The software is upgraded by a burning tool ISP_TO...

Page 18: ...dialog window will show as below 4 Click the Config button And then a dialog window will show as below Draw on the front of Use USB Port Type setting is USB Base Addr setting is 0x38C ISP Slave Addre...

Page 19: ...evice Type maybe different If appear the following figure It indicates that the ISP_TOOL has not connected Please click the DisCon button and Connect button to connect 6 Click the Read button Choose t...

Page 20: ...20 8 Click the Run button and wait update end If show any error message then do Dis Con Connect and click the Run button again till show the following dialog window...

Page 21: ...K it will show a confirm message box Press button to select yes in the confirm message box to start automatic update 5 Then it will update the software automatically Please don t power off during the...

Page 22: ...tb by N2 It s standby power supply for main IC N7 Keyboard Remote board Flash N11 and HDMI CEC c 12V supplies for Amplifier N17 R2A15120FA d 5VAIN supplies for main IC Headphone and USB e 3 3VA is con...

Page 23: ...r 5V stb 1117 3 3 N2 3 3Vstb Flash Remote Keyboard N11 N7 5VAIN 1084 ADJ N6 1 8VA MP1482 N3 1 32V 1117M3ADJ N5 2 5VA 1117 3 3A N4 3 3VA 24C04 N8 N9 24C32 EEPROM MSD309PX AP2172SG N15 5V USB 1117A 3 3A...

Page 24: ...24 5 2 Image and signal process...

Page 25: ...emote Control Remote control does not work Try new batteries Replace RC Check IR receiver Change Led IR board Change Led IR cable Replace main board Replace battery Replace remote control Replace Led...

Page 26: ...ng for Function Key Buttons does not work Check switches Check key board Check Key BD cable Change Key BD Replace main board Check solder connections and see if any switches are stuck Replace Key BD O...

Page 27: ...er on Is LED light NO YES Check Power Output YES NO Check Power Cord Only one works Replace Main BD Try Power on by RC and Button Neither works Both Work Power on OK YES NO Replace Power BD YES NO RED...

Page 28: ...Troubleshooting for Audio No sound Check connecter Check speaker wire Replace main board Reconnect Replace speaker wire YES YES NO NO Check speaker set Replace speaker set YES NO OK YES NO Power Supp...

Page 29: ...5 Troubleshooting for TV VGA HDMI input No picture on the screen Check Signal Source Check connect Check cable Replace main board Make sure signal source is available Reconnect Replace cable NO YES YE...

Page 30: ...6 Troubleshooting for YPbPr input No picture on the screen Check Source work or not Check connect Check Wires Green Blue Red Replace main board Check Source Device Reconnect Replace wires NO YES YES N...

Page 31: ...7 Troubleshooting for Video input No picture on the screen Check Source work or not Check connect Check Cable Wires Replace main board Check Signal Source Reconnect Replace Cable Wires NO YES YES NO...

Page 32: ...32 6 Schematic circuit diagram 7 Explode View...

Page 33: ...508 1 2 3 4 C861 47u 50V C861 47u 50V L803 LCL 3505 HP L803 LCL 3505 HP 1 2 3 4 C878 100n 50V C878 100n 50V R999 1k R999 1k L806 LCL 2508 L806 LCL 2508 1 2 3 4 VZ806 MSZ16T1G VZ806 MSZ16T1G 1 2 C845 1...

Page 34: ...XP1 XP1 1 2 3 4 5 6 7 8 9 10 11 12 13 L5 33 0 uH L5 33 0 uH C136 100n 16V C136 100n 16V S6 D4 S6 D4 C73 100n 16V C73 100n 16V C38 100n 16V C38 100n 16V N6 AZ1084S ADJ N6 AZ1084S ADJ ADJ 1 VOUT 4 VIN...

Page 35: ...R RP2 0R 1 8 2 3 4 5 7 6 V8 MMBT3904LT1 V8 MMBT3904LT1 3 1 2 RV3 AVLC18S02015 NC RV3 AVLC18S02015 NC C69 47n 16V C69 47n 16V M2 MARK M2 MARK C84 39p 50V C84 39p 50V C67 10u 16V C67 10u 16V R199 10k NC...

Page 36: ...P26 22R 1 8 2 3 4 5 7 6 C94 10n 50V C94 10n 50V RP12 75R RP12 75R 1 8 2 3 4 5 7 6 RP32 75R RP32 75R 1 8 2 3 4 5 7 6 R134 10k R134 10k RP29 22R RP29 22R 1 8 2 3 4 5 7 6 RP13 22R RP13 22R 1 8 2 3 4 5 7...

Page 37: ...B1 XS3 DC1R019JB1 DATA2 1 DATA2S 2 DATA2 3 DATA1 4 DATA1S 5 DATA1 6 DATA0 7 DATA0S 8 DATA0 9 CLK 10 CLKS 11 CLK 12 CEC 13 NC 14 SCL 15 SDA 16 CEC GND 17 5V 18 HPDET 19 GND1 20 GND3 22 GND2 21 GND4 23...

Page 38: ...22 47n 16V C122 47n 16V RV51 AVLC18S02015 RV51 AVLC18S02015 XS7 AV3 WBP RGB XS7 AV3 WBP RGB GND 2 GND 5 SIGNAL7 7 SIGNAL9 9 GND 8 SIGNAL4 4 SIGNAL6 6 SIGNAL1 1 SIGNAL3 3 R492 470R R492 470R R206 68R R...

Page 39: ...0755 26996830 1 0 USB 6 10 Wednesday February 23 2011 Title Size Document Number Rev Date Sheet of C 4 TEL 0755 26996895 FAX 0755 26996830 1 0 USB 6 10 Wednesday February 23 2011 R276 5 1R R276 5 1R R...

Page 40: ...9 4 7n 50V C319 4 7n 50V R319 100k R319 100k C343 1u 50V C343 1u 50V N28 TAS5711 N28 TAS5711 OUT_A 1 PVDD_A1 2 PVDD_A2 3 BST_A 4 GVDD_OUT1 5 SSTIMER 6 OC_ADJ 7 PBTL 8 AVSS 9 PLL_FLTM 10 PLL_FLTP 11 VR...

Page 41: ...1 C302 100n 16V C302 100n 16V C246 18p 50V C246 18p 50V L23 BLM18PG121SN1 L23 BLM18PG121SN1 C225 100u 16V C225 100u 16V C231 100n 16V C231 100n 16V C226 100n 16V C226 100n 16V C303 100n 16V C303 100n...

Page 42: ...MMBT3904LT1 V26 MMBT3904LT1 3 1 2 C281 100n 16V C281 100n 16V N22 HS8601 NC N22 HS8601 NC IN2 2 OUT1 4 GND 3 OUT2 5 IN1 1 R382 10k R382 10k L32 BLM18PG121SN1 L32 BLM18PG121SN1 R378 10k R378 10k N21 C...

Page 43: ...Vstb 5Vstb 7805 5V_TUNER 12V AO3401 12V VCC PANEL MP2380 5VAIN 1117 3 3 3 3V_TUNER 1117 1 2 1 2V_TUNER Title Size Document Number Rev Date Sheet of Doc RevCode Title B 10 10 Wednesday February 23 2011...

Search results

Summary of Contents for 32LD846HT

Reviews:

Brands by name

Popular brands

Hisense 32LD846HT, Service Manual

Search results

Summary of Contents for 32LD846HT

Reviews:

Brands by name

Popular brands