Grundig LX Schematic

TV Service Manual

Service Manual

Vorabversion

Preliminary Version

Chassis LX

Davio 20

LCD 51-5710 Text GBF6600

Davio 20

LCD 51-5732 DVB-T GBG1300

Lenaro 19

LXW 49-7711 Text GBF6400

Lenaro 26

LXW 68-7732 DVB-T GBG1100

Lenaro 32

LXW 82-7732 DVB-T GBG1400

Zusätzlich erforderliche Unterlagen für den Komplettservice Additionally required Service Documents for the Complete Service

Sicherheit

Safety

Materialnr./Part No.

720108000001

Monaco 20

LCD 51-9732 DL GBF0300

Vision 6

32-6820 GBG6500

Vision 20

LCD 51-8720 Text GBF0800

Vivance II 32

LXW 82-6711 Text GBF8500

Lenaro 19

LXW 49-7741 DVB-T GBG1200

26

LXW 68-8600 DL GBF8600

32

LXW 82-8600 DL GBF7300

Materialnummer / Part Number 720100529000 Änderungen vorbehalten / Subject to alteration TCC 1007 MP • Prepared in Germany http://www.grundig.com

GRUNDIG Service Chassis LM ≥37", PM

Vorabversion

Preliminary Version

Es gelten die Vorschriften und Sicherheitshinweise gemäß dem Service Manual "Sicherheit", Materialnummer 720108000001, sowie zusätzlich die eventuell abweichenden, landesspeziﬁschen Vorschriften!

Inhaltsverzeichnis

Seite

Allgemeiner Teil .................................. 1-3…1-14

Allgemeine Hinweise .....................................................................1-3

Geräte- und Display-Varianten ......................................................1-3

Technische Daten ..........................................................................1-4

Bedienhinweise .............................................................................1-6

Service- und Sonderfunktionen ...................................................1-12

Platinenabbildungen

und Schaltpläne .................................. 2-1…2-26

Hauptplatte ....................................................................................2-1

– Netzteil ....................................................................................2-10

– IN/OUT 1..................................................................................2-11

– IN/OUT 2..................................................................................2-12

– IN/OUT 3..................................................................................2-13

– Verstärker .................................................................................2-14

– Tuner ........................................................................................2-15

– COFDM Demodulator ..............................................................2-16

– Scaler.......................................................................................2-17

– Übersicht..................................................................................2-19

Netzteil-Platte Z1J194 .................................................................2-20

Netzteil-/Inverter-Platte FSP060-2L02A ......................................2-23

Keyboards ACE191, Z9S191, ZP319ACE191, Z9S191, ZP319 ..........................................2-25

Netzschalterplatte ZP3195, XDL192 ...........................................2-25

LED-Platte ZP3193, Z8K193ZP3193, Z8K193 .......................................................2-26

Kopfhörerplatte 8R9198 ..............................................................2-26

Buchsenplatte XDJ197XDJ197 ................................................................2-26

The regulations and safety instructions shall be valid as provided by the "Safety" Service Manual, part number 720108000001, as well as the respective national deviations.

Table of Contents

Page

General Section ..................................... 3…1-14

General Notes ...............................................................................1-3

Product and Display Variants .........................................................1-3

Technical Data ...............................................................................1-4

Operating Hints ..............................................................................1-9

Service and Special Functions ....................................................1-12

Layout of the PCBs

and Circuit Diagrams ......................... 2-1…2-26

Main Board ....................................................................................2-1

– Power Supply ..........................................................................2-10

– IN/OUT 1..................................................................................2-11

– IN/OUT 2..................................................................................2-12

– IN/OUT 2..................................................................................2-13

– Ampliﬁer ...................................................................................2-14

– Tuner ........................................................................................2-15

– COFDM Demodulator ..............................................................2-16

– Scaler.......................................................................................2-17

– Overview ..................................................................................2-19

Power Supply Board Z4J194 .......................................................2-20

Power Supply / Inverter Board FSP060-2L02A ...........................2-23

Keyboards ACE191, Z9S191, ZP319 ..........................................2-25

Power Switch Board ZP3195, XDL192ZP3195, XDL192 ........................................2-25

LED Boards ZP3193, Z8K193 .....................................................2-26

Headphone Board 8R91988R9198 ..........................................................2-26

Socket Board XDJ197 .................................................................2-26

Ersatzteillisten ...................................... 3-1…3-4

Spare Parts Lists .................................. 3-1…3-4

1 - 2

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams

Hauptplatte / Main Board

POS. X Y POS. X Y POS. X Y POS. X Y POS. X Y POS. X Y POS. X Y POS. X Y C300 T 26 124

C301 B 19 69 C302 T 20 56 C303 B 18 55 C304 T 37 78

C305 T 22 105 C306 T 24 108 C307 T 123 80 C308 B 11 34 C309 B 8 34

C310 T 40 44 C311 T 45 45 C312 B 14 21 C313 B 15 29 C314 T 39 33

C315 T 45 28 C316 T 16 72 C317 T 20 67 C318 T 17 79 C319 T 26 82

C320 T 15 56 C321 T 17 56 C322 T 122 84 C323 B 11 75 C324 B 11 78

C325 T 10 170 C326 T 38 60 C327 T 71 179 C328 T 29 131 C329 T 30 59

C330 T 30 58 C331 T 34 57 C332 T 34 60 C333 T 18 185 C334 T 23 124

C335 T 14 177 C336 T 33 68 C337 T 70 182 C338 B 64 171 C339 B 67 165

C340 B 66 143 C341 B 70 143 C342 B 79 138 C344 T 34 55 C345 T 93 32

C346 T 45 129 C347 T 96 32 C348 T 102 34 C349 B 21 54 C350 T 122 188

C351 T 97 29 C352 T 23 45 C353 T 17 42 C354 B 18 37 C355 B 75 146

C356 B 83 145 C357 T 86 155 C358 B 82 168 C359 B 61 165 C360 B 60 169

C361 B 57 169 C362 B 51 163 C363 B 53 159 C364 B 76 168 C365 B 65 165

C366 B 55 156 C367 B 51 144 C368 B 55 143 C369 B 75 140 C370 B 55 164

C371 B 51 140 C372 B 81 138 C373 B 51 152 C374 B 51 147 C375 B 57 141

C376 B 60 143 C377 B 15 37 C378 T 93 134 C379 T 91 156 C380 T 50 60

C381 T 66 186 C382 T 20 177 C383 T 102 36 C384 T 13 94 C385 T 13 84

C387 B 76 177 C388 B 74 177 C389 T 56 50 C390 T 85 135 C391 T 22 148

C392 T 32 83 C393 T 29 135 C394 T 24 137 C395 T 10 159 C396 T 58 60

C397 B 25 181 C398 B 36 176 C399 B 36 181 C400 B 43 176 C401 B 43 181

C402 B 40 172 C403 B 36 172 C404 B 38 176 C405 B 39 164 C406 B 81 147

C407 B 78 150 C408 T 77 173 C409 B 78 168 C410 T 122 154 C411 B 127 56

C412 T 111 127 C413 T 108 127 C414 B 113 126 C415 T 99 17 C416 T 85 153

C417 T 125 133 C418 T 111 39 C419 T 85 131 C420 T 89 135 C421 T 93 162

C422 T 77 176 C423 T 75 176 C424 T 8 159 C425 T 41 105 C426 T 125 152

C427 B 121 82 C428 B 122 106 C429 T 125 100 C430 T 127 165 C431 B 122 131

C432 T 125 148 C433 T 127 168 C434 T 125 136 C435 T 125 149 C436 T 111 44

C437 T 111 40 C438 T 111 36 C439 T 111 42 C440 T 111 37 C441 T 111 34

C442 T 110 146 C443 T 107 146 C444 B 42 164 C446 T 125 144 C447 T 125 126

C448 T 121 21 C449 T 121 7 C450 T 125 105 C451 T 125 115 C452 T 125 123

C453 T 125 139 C454 T 121 15 C455 T 121 10 C456 T 125 109 C457 T 125 113

C458 T 51 17 C459 B 52 18 C460 T 103 17 C461 T 104 21 C462 T 125 128

C463 T 125 141 C464 T 121 18 C465 T 121 13 C466 T 125 112 C467 T 125 120

C468 T 49 21 C469 T 54 21 C470 T 103 21 C471 T 105 23 C472 T 114 117

C473 T 125 104 C474 B 125 113 C475 B 124 158 C476 T 125 154 C477 T 114 139

C478 T 111 142 C479 T 127 167 C480 B 20 17 C481 T 36 17 C482 T 41 17

C483 T 45 17 C484 T 34 17 C485 T 39 17 C486 T 48 21 C487 T 79 18

C488 T 98 17 C489 T 77 18 C490 T 107 110 C491 T 100 115 C492 T 107 104

C493 B 90 94 C494 T 115 102 C495 B 104 103 C496 B 72 107 C497 T 88 116

C498 T 90 103 C499 B 90 105 C500 T 92 116 C501 T 91 116 C502 B 103 114

C503 T 96 116 C504 B 92 105 C505 B 94 119 C506 T 107 115 C507 B 103 126

C508 T 114 138 C509 T 114 136 C510 B 84 94 C512 B 109 104 C513 B 97 95

C514 B 101 95 C515 T 91 103 C516 T 108 122 C517 T 111 122 C518 T 110 130

C519 B 111 126 C520 T 117 132 C521 T 117 133 C522 T 118 105 C523 B 106 112

C549 B 12 29 C550 B 11 23 C551 T 41 23 C553 T 49 53 C554 T 45 47

C555 T 53 46 C556 T 47 26 C557 T 59 29 C558 T 53 24 C559 T 24 138

C560 T 51 27 C561 T 54 46 C562 T 56 46 C563 T 53 27 C564 T 55 27

C565 T 58 46 C566 T 70 33 C567 B 72 173 C568 B 72 177 C578 B 49 52

C579 T 18 98 C580 T 25 98 C581 T 53 14 C582 B 22 14 C583 T 37 14

C584 T 28 14 C585 T 41 14 C586 T 46 14 C587 B 23 8 C588 B 103 8

C589 T 74 14 C590 B 89 7 C591 T 82 14 C592 T 48 14 C593 B 54 14

C594 T 106 14 C595 T 107 14 C596 T 51 14 C597 T 56 14 C598 T 103 14

C599 T 107 17 C600 T 72 10 C601 T 59 13 C602 T 68 12 C603 T 62 12

C605 T 111 16 C606 T 117 16 C607 T 65 21 C608 T 62 21 C609 T 97 24

C610 T 87 24 C611 B 70 173 C612 B 68 177 C613 T 82 17 C614 B 112 14

C615 B 117 14 C616 T 65 176 C617 B 13 58 C619 T 52 102 C620 T 65 60

C621 T 64 72 C624 T 78 118 C626 T 81 123 C627 T 74 133 C629 T 73 118

C630 T 74 118 C631 T 121 73 C632 B 130 155 C633 T 76 118 C634 T 80 125

C635 T 125 95 C636 B 16 14 C639 T 80 14 C640 T 104 146 C641 T 72 21

C642 T 87 29 C643 T 43 60 C645 T 64 90 C646 T 64 91 C647 B 63 96

C648 B 60 96 C649 B 60 88 C650 B 52 98 C651 B 53 89 C652 B 64 86

C654 B 54 85 C655 B 47 92 C656 B 56 85 C657 B 50 95 C658 B 58 96

C659 B 49 89 C660 B 59 85 C662 B 65 96 C663 T 64 95 C664 T 60 101

C665 T 56 101 C666 T 59 82 C667 T 54 82 C709 T 64 93 C710 B 11 40

C711 T 60 60 C712 T 38 62 C719 B 16 73 C940 B 72 9 C941 T 80 33

C942 B 70 9 C943 T 62 18 C944 T 92 24 C947 T 43 114 C950 T 13 97

C951 T 13 89 C952 B 12 91 C953 B 42 122 C954 B 32 119 C955 B 28 119

C956 B 38 118 C957 B 66 133 C958 B 38 122 C959 B 53 121 C960 B 51 121

C961 B 47 124 C962 B 43 126 C963 B 40 126 C964 B 38 126 C965 B 40 118

C966 B 41 118 C967 B 44 118 C968 B 40 122 C969 B 50 127 C970 B 52 125

C971 B 52 129 C972 B 39 132 C973 B 37 132 C974 B 40 132 C975 B 42 134

C976 B 50 131 C977 B 31 133 C978 B 33 133 C979 B 40 136 C980 B 38 136

C981 B 30 174 C982 B 12 87 C983 T 88 36 C984 B 68 9 C985 B 47 28

C986 B 46 46 C987 B 49 163 C988 B 22 118 C989 T 70 26 C990 T 80 26

D300 T 46 24 D301 T 24 60 D304 T 33 64 D305 T 30 55 D306 T 37 58

D307 T 19 164 D308 T 122 172 D309 T 122 57 D310 B 129 45 D311 B 128 33

D312 B 124 56 D313 B 130 37 D314 T 114 32 D315 T 117 35 D316 T 117 39

D317 T 117 43 D318 T 75 112 D320 T 34 50 D326 B 81 15 D327 B 77 14

IC300 T 25 127 IC301 T 17 62 IC302 T 42 70 IC303 T 16 173 IC304 T 96 39

IC305 T 80 183 IC306 T 11 154 IC307 T 49 102 IC308 T 82 133 IC309 T 66 154

IC310 T 34 178 IC311 T 33 175 IC312 T 12 163 IC313 T 118 121 IC314 T 118 156

IC315 T 120 180 IC316 T 128 58 IC317 T 92 109 IC318 T 45 102 IC319 T 100 105

IC320 T 73 125 IC321 T 49 37 IC323 T 29 143 IC325 T 62 66 IC326 T 48 106

IC327 T 48 110 IC328 T 127 74 IC329 T 105 43

L300 B 52 168 L301 B 15 68 L302 T 20 80 L303 T 25 89 L304 T 27 89

L305 T 42 109 L306 T 33 75 L307 T 26 71 L308 T 16 49 L309 B 95 134

L310 T 89 161 L311 T 19 168 L312 T 88 164 L313 T 88 165 L314 B 57 164

L315 T 86 135 L316 B 66 171 L317 T 17 180 L318 T 20 179 L319 T 20 180

L320 T 22 162 L321 T 64 181 L322 T 101 32 L324 T 32 90 L325 T 125 97

L326 B 124 74 L327 T 125 159 L328 T 114 143 L329 T 122 80 L330 T 100 126

L331 T 100 121 L332 T 104 140 L333 T 112 106 L334 B 77 103 L335 T 116 102

L339 T 33 39 L340 T 21 33 L341 T 21 22 L342 T 33 27 L345 T 29 133

L346 T 24 135 L347 T 41 54 L348 T 39 52 L349 T 22 92 L350 T 20 92

L351 T 49 14 L352 T 54 14 L353 T 104 14 L354 T 106 17 L355 T 83 17

L357 B 11 45 L359 T 74 131 L360 T 80 118 L362 B 13 48 L370 T 57 104

L371 T 54 102 L372 T 64 88 L373 T 45 99 L374 B 64 92 L375 B 12 68

L376 T 118 188

L377 B 108 184 L378 B 104 184 L379 T 119 188 L380 B 100 184 L381 T 33 39

L382 T 21 33 L383 T 21 23 L384 T 33 27 L910 B 14 87

R300 T 24 133 R301 T 14 77 R302 B 38 54 R303 T 31 49 R304 T 28 49

R305 B 23 54 R306 T 22 53 R307 B 16 43 R308 B 13 43 R309 T 25 155

R310 T 22 154 R311 T 56 124 R312 B 17 150 R313 B 32 139 R314 T 43 138

R315 T 43 140 R316 T 121 147 R317 T 121 149 R318 T 12 59 R319 T 12 56

R320 T 14 56 R321 T 19 56 R322 T 24 105 R323 T 22 108 R324 T 28 120

R325 T 23 117 R326 T 29 117 R327 T 23 120 R328 T 13 83 R329 T 29 113

R330 T 34 58 R331 B 26 49 R332 T 34 53 R333 T 22 50 R334 T 33 71

R335 T 37 77 R336 T 71 188 R337 T 71 184 R338 T 13 93 R339 T 105 122

R340 T 105 124 R341 T 13 88 R342 T 13 99 R343 T 13 101 R344 T 13 86

R345 T 13 96 R346 T 80 135 R347 T 25 159 R348 T 22 159 R349 T 22 146

R350 T 22 158 R351 T 25 157 R352 T 22 156 R353 T 28 153 R354 T 22 153

R355 T 28 131 R356 T 12 159 R357 T 11 150 R358 T 19 167 R359 T 19 162

R360 T 25 153 R361 B 78 146 R362 T 88 135 R363 T 67 134 R364 T 51 130

R365 T 51 126 R366 T 43 120 R367 T 51 121 R368 T 26 131 R369 T 119 118

R370 T 119 121 R371 T 43 123 R372 T 43 125 R373 T 43 128 R374 T 42 128

R379 T 26 187 R380 T 28 187 R381 T 30 187 R382 T 54 181 R383 T 51 184

R384 T 55 174 R385 T 50 177 R386 T 12 167 R387 T 15 167 R388 T 33 152

R389 T 41 150 R390 T 44 149 R391 T 41 148 R392 T 44 147 R393 T 22 149

R394 B 34 139 R395 T 43 141 R396 T 46 138 R397 T 51 114 R398 T 50 114

R399 T 46 113 R400 T 41 104 R401 T 74 134 R402 T 125 157 R403 B 122 77

R404 B 122 102 R405 T 125 99 R406 T 131 165 R407 T 125 130 R408 T 125 146

R409 T 131 168 R410 T 125 135 R411 T 125 151 R412 T 114 44 R413 T 114 40

R414 T 114 36 R415 T 114 42 R416 T 114 37 R417 T 114 34 R418 T 109 142

R419 T 110 144 R420 T 107 144 R421 T 46 163 R422 T 37 163 R423 T 37 165

R424 T 54 187 R425 T 50 173 R426 T 32 187 R427 T 34 187 R428 T 125 102

R429 B 128 113 R430 B 116 148 R431 B 115 151 R432 T 111 31 R433 T 111 32

R434 T 122 59 R435 T 122 61 R436 T 29 167 R437 T 31 167 R438 B 34 164

R439 B 37 164 R440 T 124 172 R441 B 122 91 R442 T 125 73 R443 B 127 155

R444 T 125 125 R445 T 125 143 R446 T 121 8 R447 T 125 117 R448 T 121 20

R449 T 125 107 R450 T 49 17 R451 T 54 17 R452 T 104 17 R453 T 106 21

T: Koordinaten für die Bauteile der Bestückungsseite / Coordinates of the Components on the component side B: Koordinaten für die Bauteile der Lötseite / Coordinates of the Components on the solder side

2 - 1

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board

POS. X Y POS. X Y POS. X Y POS. X Y POS. X Y POS. X Y POS. X Y POS. X Y R454 T 125 122

R455 T 125 138 R456 T 121 16 R457 T 121 11 R458 T 125 110

R459 T 125 118 R460 T 48 17 R461 B 54 18 R462 T 101 21 R463 T 107 21

R464 B 128 104 R465 B 128 118 R466 B 128 127 R467 B 128 132 R468 B 128 140

R469 B 128 146 R470 B 126 160 R471 B 130 160 R472 T 105 127 R473 T 111 125

R474 T 131 167 R475 B 20 14 R476 T 37 17 R477 T 42 17 R478 T 45 14

R479 T 34 14 R480 T 39 14 R481 T 46 17 R482 T 75 14 R483 T 98 14

R484 T 75 18 R485 T 125 161 R486 B 125 128 R487 B 125 146 R488 B 116 45

R489 B 116 41 R490 B 116 38 R491 T 125 131 R492 T 114 39 R493 T 121 96

R494 T 122 90 R495 T 30 113 R496 T 25 131 R497 T 121 84 R498 B 122 86

R499 T 111 168 R500 T 116 172 R501 T 118 172 R502 B 119 147 R503 B 130 56

T: Koordinaten für die Bauteile der Bestückungsseite / Coordinates of the Components on the component side B: Koordinaten für die Bauteile der Lötseite / Coordinates of the Components on the solder side

R504 T 93 103 R505 B 94 103 R506 T 121 150 R507 T 111 29 R508 B 130 41

R509 B 130 33 R510 T 111 163 R511 T 114 172 R512 T 119 172 R513 T 112 48

R514 T 112 49 R515 T 114 30 R516 T 116 49 R517 T 112 46 R518 T 116 46

R519 T 116 48 R520 T 112 102 R521 B 103 95 R522 B 93 94 R523 B 82 94

R524 B 73 103 R525 T 113 102 R526 T 118 102 R527 B 106 108 R528 B 85 102

R529 B 79 94 R530 B 69 97 R531 B 69 101 R532 T 75 114 R533 T 78 113

R534 T 71 112 R535 T 84 116 R536 T 86 116 R537 T 89 116 R538 T 94 116

R539 T 108 119 R540 T 105 119 R541 T 105 121 R542 T 101 134 R543 T 102 130

R544 T 104 130 R545 T 105 130 R546 T 114 130 R547 T 110 136 R548 T 110 138

R549 T 109 130 R550 T 117 135 R551 T 117 130 R552 T 114 141 R553 T 100 130

R554 B 87 94 R555 B 75 103 R556 T 108 121 R557 T 99 105 R558 T 101 105

R559 T 97 111 R560 T 99 111 R561 T 88 103 R562 T 111 121 R563 T 105 125

R564 T 111 124 R565 T 112 130 R566 T 107 130 R567 T 113 112 R568 T 113 114

R569 T 116 112 R570 T 66 29 R571 T 23 131 R572 T 118 107 R573 T 54 50

R574 T 55 24 R575 T 95 103 R576 T 28 124 R577 T 29 124 R578 T 29 120

R579 T 25 124 R580 B 35 65 R581 B 33 65 R582 T 12 53 R583 T 41 100

R584 T 76 173 R585 T 51 46 R586 T 51 23 R587 T 100 23 R588 T 74 173

R589 T 85 24 R590 T 58 23 R597 T 62 23 R599 T 57 27 R600 T 44 144

R601 T 29 138 R602 T 29 137 R603 B 24 14 R604 T 36 14 R605 T 42 14

R606 B 46 14 R607 B 27 14 R608 T 33 17 R609 T 101 14 R610 T 84 14

R611 T 87 17 R612 T 94 14 R613 B 16 17 R614 T 29 14 R615 B 26 14

R616 T 79 14 R617 T 89 17 R618 B 26 20 R619 T 89 14 R621 T 94 17

R622 T 53 17 R623 T 101 17 R624 T 53 21 R625 B 95 18 R626 T 68 20

R627 T 58 21 R628 T 99 21 R629 T 86 20 R630 T 65 18 R631 T 62 16

R632 T 95 24 R633 T 90 24 R634 T 65 20 R635 T 62 20 R636 T 94 24

R637 T 89 24 R638 T 68 21 R639 T 58 20 R640 T 94 21 R641 T 86 22

R642 B 70 177 R643 B 66 177 R644 T 69 173 R645 B 68 173 R647 B 35 8

R648 B 39 8 R650 T 60 29 R651 B 31 65 R652 T 30 61 R653 T 62 29

R654 B 16 55 R655 T 81 125 R656 T 73 173 R657 T 71 173 R658 T 63 72

R659 T 63 60 R660 T 60 72 R661 T 58 64 R662 T 61 60 R664 T 126 70

R665 T 128 70 R666 T 68 118 R667 T 80 132 R668 T 41 102 R669 T 69 118

R670 T 71 118 R671 T 45 106 R672 T 51 107 R673 T 13 129 R674 T 13 91

R675 T 15 129 R676 T 11 138 R677 T 45 110 R678 T 104 144 R679 B 18 14

R680 T 77 14 R681 T 64 134 R682 T 51 110 R684 T 57 129 R685 T 56 134

R686 B 53 136 R687 T 110 139 R688 T 117 137 R689 T 96 14 R690 T 77 132

R691 T 77 134 R692 T 125 156 R693 T 122 96 R694 T 123 73 R695 B 56 136

R696 T 59 125 R697 T 60 125 R700 T 63 129 R702 T 72 20 R703 T 27 113

R704 T 105 35 R706 T 85 29 R707 T 78 132 R708 T 55 64 R709 T 57 64

R721 T 64 98 R722 T 64 100 R723 T 64 96 R724 T 64 101 R725 T 61 101

R726 T 58 101 R730 T 42 96 R731 T 42 92 R732 T 42 89 R733 T 42 86

R734 T 42 84 R735 T 42 83 R736 T 52 82 R738 T 56 82 R739 T 57 82

R740 T 100 111 R741 T 23 127 R742 B 26 65 R743 T 43 134 R744 B 32 14

R745 B 30 14 R746 B 113 96 R747 B 104 108 R950 B 71 19 R951 B 73 19

R953 T 31 14 R954 T 33 14 R955 T 60 33 R956 T 64 29 R957 B 32 170

R958 B 30 170 R959 B 22 101 R960 B 26 101 R961 B 24 101 R962 B 17 96

R963 B 15 96 R964 B 11 101 R965 B 9 101 R966 B 52 166 R967 T 22 51

R968 B 24 118 R969 B 70 28 R970 B 83 27 S300 T 15 136 S301 T 9 63

S302 T 104 30 S303 T 9 43 S304 T 8 44 S306 T 9 91 S307 T 12 145

S309 T 38 124 S311 T 50 127 S313 T 130 85 S314 T 105 187 S315 T 130 14

S316 T 131 101 S317 T 131 115 S318 T 131 129 S319 T 131 143 S320 T 131 157

S321 T 124 39 S322 T 130 178 S323 T 131 85 S324 T 9 26 S325 T 9 76

S326 T 37 8 S327 T 97 8 S328 T 10 124 S329 T 37 93

SAW301

T 78 110

SAW302

T 78 105

T213 B 71 14 T300 T 29 127 T301 T 30 52 T302 T 25 120 T303 T 13 80

T304 T 26 117 T305 T 26 50 T306 T 24 113 T307 T 26 53 T308 T 122 87

T309 T 119 110 T310 T 68 17 T311 T 58 17 T312 T 96 21 T313 T 90 21

T314 T 29 106 T315 T 122 92 T316 T 115 110 T317 T 111 165 T318 B 29 18

T319 T 92 17 T320 T 83 113 T321 T 106 134 T322 T 113 134 T323 T 108 125

T324 T 103 134 T325 T 117 140 T326 B 23 18 T328 T 86 14 T329 T 92 14

T330 T 110 134 T331 T 115 106 T333 T 63 26 T334 T 60 26 T336 T 30 64

T337 B 13 53 T339 T 76 21 T340 T 92 28

T341 T 80 129 T342 B 19 101 T343 B 14 101

TU301 T 92 80 TU302 T 93 80 TU303 T 93 80

U700 T 54 91

V300 B 122 74 V301 B 18 17 V302 B 37 14 V303 B 29 8 V304 B 43 14

V305 T 72 14 V306 T 99 14 V307 T 122 99 V308 T 129 104 V309 T 128 118

V310 T 128 160 V311 B 125 131 V312 T 128 146 V313 T 128 126 V314 T 128 140

V315 T 128 154 V316 T 124 84 V317 B 47 8 V318 B 52 7 V319 B 52 14

V320 B 56 14 V321 B 107 8 V322 B 110 13 V323 B 114 8 V324 B 115 14

X301 T 89 127 X302 T 89 122 X700 T 57 78

2 - 2

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board

Ansicht von der Bestückungsseite / View of Component Side

2 - 3

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board

Ansicht von der Bestückungsseite / View of Component Side

2 - 4

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board

Ansicht von der Bestückungsseite / View of Component Side

2 - 5

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board

Ansicht von der Lötseite / View of Solder Side

2 - 6

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board

Ansicht von der Lötseite / View of Solder Side

2 - 7

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board

Ansicht von der Lötseite / View of Solder Side

2 - 8

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board

Ansicht von der Bestückungsseite – DC-Layer / View of Component Side – DC Layer

2 - 9

Hauptplatte – Netzteil / Main Board – Power Supply

1

MP1593

3A, 28V, 385KHz STEP-DOWN CONVERTER

LOCKOUT

COMPARATOR

ERROR

AMPLIFIER

FREQUENCY

FOLDBACK

COMPARATOR

INTERNAL

REGULATORS

1.8V

SLOPE COMP

CLK

CURRENT

COMPARATOR

CURRENT

SENSE

AMPLIFIER

SHUTDOWN

COMPARATOR

SS

8

COMP

6

IN

2

EN

7

GND

4

OSCILLATOR

40/385KHz

SRQ

SW

3

BS

M1

M2

1

5V

+

Q

0.7V

+

2.3V/

2.6V +

1.22V0.7V

+

FB

5

--

Vorabversion

Preliminary Version

2 - 10

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board – IN/OUT 1

2 - 11

GRUNDIG Service Chassis LX

Vorabversion

Preliminary Version

Hauptplatte / Main Board – IN/OUT 2

2 - 12

Hauptplatte / Main Board – IN/OUT 3

Vorabversion

Preliminary Version

2 - 13

GRUNDIG Service Chassis LX

Hauptplatte – Verstärker/ Main Board – Ampliﬁer

3

4

%

^

&

*

(

)

¡

™

£

TB2924FG

1 2

3 4 5 6 7 8 9 10 11 12

282930 192021222324252627

OUT 1 (−)

13 14 15 16 17 18

313233343536

V

REG

BOOT

1 (+)

OUT 1 (+)

NC

PW

GND1

PW

V

CC1

NC

BOOT

1 (−)

FEED

1 (+)

Pre

GND1

Rip/F NC IN1

FEED

1 (−)

VCC/2STBY MUTE

NCNC

BOOT

2 (+)

OUT 2 (+)

PW

GND2

OUT 2 (−)

PW

V

CC2

NC

BOOT

2 (−)

OSC OUT

Pre

GND2

OSC SW IN2

FEED

2

(−)

FEED

2 (+)

NC

OSC

IN

Pre

V

CC

AGC

VCC/2

AGC

V

CC

/2

VCC/2

AGC

10dB Step

1dB Step

Volume Controller

0..79 dB

7

2

1 8 4 5

IC325 PT2259

Control

Interface

Digital Filters

Digital

Audio

Interface

Σ−Δ

DAC

Σ

6 to −73 dB,

1-dB Steps

Headphone

Driver

Σ−Δ

DAC

Σ

6 to −73 dB,

1-dB Steps

Headphone

Driver

CLKIN Divider

(1x, 1/2x)

OSC

CS

SDI

SCLK

MODE

DVDD

BVDD

DGND

LRCIN

DIN

BCLK

AVDD

VMID

AGND

RLINEIN LLINEIN

HPVDD

HPGND

RHPOUT

ROUT

LOUT

LHPOUT

XTI/MCLK

XTO

CLKOUT

TLV320DAC23

1.0X

VMID

50 kΩ

VDAC

1.0X

VDAC

CLKOUT (1x, 1/2x)

DAC

Select

Bypass

Vorabversion

Preliminary Version

2 - 14

GRUNDIG Service Chassis LX

8

5

6

7

$

DIGITAL VCO CONTROL

AFC DETECTOR

RC VCO

VIF-PLL

VIF-AGC

TUNER AGC

SUPPLY

SIF-AGC

AUDIO PROCESSING

AND SWITCHES

NARROW-BAND

FM-PLL DEMODULATOR

SINGLE REFERENCE QSS MIXER

INTERCARRIER MIXER

AND AM DEMODULATOR

SOUND CARRIER

TRAPS

4.5 to 6.5 MHz

TAGC

C

AGC(neg)

C

BL

VAGC

(1)

TOP

14 (15)

VPLL

19 (21)

)32( 12)61( 51

)7

1(

61

)

8(

9

4 (2)10 (9)

11 (10)

12 (11)18 (20)20 (22)

2 (31)

1 (30)

(18) 17

(7) 8

(3) 5

(4) 6

REF AFC

AUD

CVBS

SIOMAD

SDA DGNDSCL

MAD

V

P

C

AGC

(6, 12, 13, 14, 17, 19, 25, 28, 29, 32) 13

n.c.

AGND

7 (5)

OUTPUT

PORTS

I2C-BUS TRANSCEIVER

22 (24)

3 (1)

LLPMF2PO1PO

DEEM

AFD

VIF2

VIF1

24 (27)

23 (26)

SIF2

SIF1

TDA9885 TDA9886

(1) Not connected for TDA9885.

Vorabversion

Preliminary Version

Hauptplatte / Main Board – Tuner

2 - 15

GRUNDIG Service Chassis LX

8

9

Vorabversion

Preliminary Version

Hauptplatte / Main Board – COFDM Demodulator

2 - 16

GRUNDIG Service Chassis LX

2

3

4

5

6

0

Vorabversion

Preliminary Version

Hauptplatte / Main Board – Scaler

2 - 17

GRUNDIG Service Chassis LX

3

4

!

@

#

≤

§

Vorabversion

Preliminary Version

Hauptplatte / Main Board – Scaler

2 - 18

GRUNDIG Service Chassis LX

A

D

SYNC

A

D

A

D

A

D

Color-

decoder

Audioproz

MST96885TL

ess

TEXT-

Decoder

Scaler

LVDS Driver RGB Driver

Microcontroller

Stereodecoder

ITU656

255

254

253

248

249

57

169

39

62

80

59

4849797881

82

2517677414655445150

1617242725

22

1415157

33

38343230737484

85

1,2

4,5

7,8

10,11

244

245

246

24754189

187

188

229

241

233

175 174

191

190

71 72 159

LVDS

HDMI-Controller

Video

Audio

Entcrypt Engine

40 Keys

a´54 Bit

HDMI

Microcontroller Port

84 83

183

184

185

186

Vorabversion

Preliminary Version

Hauptplatte – Übersicht / Main Board – Overview

2 - 19

Netzteil-Platte / Power Supply Board Z1J194

Vorabversion

Preliminary Version

Ansicht von der Bestückungsseite / View of Component Side

2 - 20

T: Koordinaten für die Bauteile der Bestückungsseite Coordinates of the Components on the component side B: Koordinaten für die Bauteile der Lötseite Coordinates of the Components on the solder side

POS. X Y POS. X Y POS. X Y C340 B 175 98

C900 T 19 32 C901 T 12 111 C903 T 80 67 C904 T 68 74

C905 T 15 71 C906 T 35 123 C907 T 29 123 C908 T 35 81 C909 T 42 55

C910 T 46 51 C913 B 115 41 C914 B 84 111 C915 T 51 26 C916 B 100 57

C917 B 87 126 C918 T 77 13 C919 T 98 82 C920 T 76 29 C921 T 107 113

C922 T 76 21 C923 T 109 67 C924 T 150 40 C925 T 136 29 C926 T 135 40

C927 T 162 44 C928 T 149 89 C929 T 152 106 C930 T 166 105 C931 T 165 87

C932 B 112 55 C933 B 138 58 C934 B 93 99 C935 B 147 71 C936 B 112 57

C937 B 84 115 C938 B 112 49 C939 B 83 103 C940 B 110 42 C941 B 155 56

C942 B 83 99 C943 B 83 106 C944 T 111 42 C945 T 83 97 C946 T 125 112

C946A T 41 5 C948 B 145 60 C949 B 142 58 C950 B 151 76 C951 B 151 71

C952 B 83 108 C954 T 27 8 C955 T 33 8 C956 T 47 69 C957 B 118 67

C958 B 105 57 C959 B 162 29 C960 B 161 114 C961 B 93 55

D904 B 97 52

D905 B 100 46 D906 B 97 46 D907 B 84 121 D908 B 75 98 D909 B 76 93

D910 T 81 31 D911 T 103 94 D915 T 146 15 D916 T 160 17 D917 T 142 115 D918 B 119 46

DB900 T 54 60 FB900 T 76 3

FB901 T 89 72 FS900 T 23 11 HS900 T 161 13

HS902 T 82 117 HS903 T 127 117 HS904 T 145 20 HS905 T 66 46

IC900 T 112 53 IC901 T 84 108 IC902 T 144 52 IC903 T 153 64

J914 T 85 86 J915 B 100 91

L900 T 15 52 L902 T 173 36 L903 T 167 115 L904 T 48 83 L906 T 15 91 L907 T 58 98

PH900 T 126 58 PH901 T 126 69

R900 T 21 20 R901 T 29 112 R901A T 29 108 R902 B 148 82 R903 T 86 61

R904 T 82 83 R905 B 98 55 R906 B 87 122 R907 B 94 55 R908 B 87 118

R909 T 84 8 R910 T 104 76 R911 B 152 42 R912 B 121 50 R913 B 159 103

R914 T 97 97 R915 B 112 53 R916 B 91 99 R917 B 108 46 R918 B 78 101

R919 B 112 42 R920 B 152 56 R921 B 162 69 R922 T 160 79 R923 T 124 63

R924 B 136 51 R925 B 132 53 R926 B 139 70 R927 T 160 75

R928 B 121 54 R929 B 136 61 R930 B 136 68 R931 B 148 60 R932 B 155 72

R933 B 138 55 R934 B 147 69 R935 B 147 49 R936 B 149 64 R937 B 138 52

R938 B 147 66 R939 B 83 97 R940 T 80 119 R941 B 138 61 R942 B 147 74

R943 T 54 4 R944 B 161 47 R945 B 175 101 R946 B 144 70 R947 B 132 50

R948 B 75 102 R949 T 93 98 R950 B 138 49 R951 B 145 63 R952 T 103 39

R953 T 47 75 R954 T 92 88 R960 B 118 70 R961 B 116 45 R962 B 87 49

R963 T 103 49 R964 T 83 36 R965 B 169 29 R966 B 172 29 R967 B 166 29

R968 B 158 114 R969 B 155 114 R970 B 153 114 R971 T 116 45

S900 T 177 51 S901 T 175 79 S902 T 170 55

T900 T 83 40 T901 T 100 111 T902 B 149 56 T903 B 157 68 T904 B 152 81

U900 T 106 17 U901 T 124 91

X900 T 4 18 ZD900 B 105 42

ZD902 B 141 65 ZD903 B 75 107 ZD904 B 147 78

GRUNDIG Service Chassis LX

Netzteil-Platte / Power Supply Board Z1J194

Vorabversion

Preliminary Version

Ansicht von der Lötseite / View of Solder Side

2 - 21