Grundig ST 55 - 750 Service Manual Download Page 34

Chassis Board

Coordinates of the components on the solder side
(bottom side)

Chassisplatte

Koordinaten für die Bauteile der Lötseiteseite
(Unterseite)

Pos.-Nr./

Koordinaten/

Pos. No.

Coordinates

X

Y

Pos.-Nr./

Koordinaten/

Pos. No.

Coordinates

X

Y

Pos.-Nr./

Koordinaten/

Pos. No.

Coordinates

X

Y

Pos.-Nr./

Koordinaten/

Pos. No.

Coordinates

X

Y

Pos.-Nr./

Koordinaten/

Pos. No.

Coordinates

X

Y

CBR001

256

172

CBR002

70

22

CBR003

140

70

CBR005

85

72

CBR006

91

34

CBR007

92

76

CBR009

44

48

CBR010

130

81

CBR011

85

75

CBR012

236

56

CBR013

98

73

CBR014

241

121

CBR016

227

81

CBR017

185

121

CBR018

131

35

CBR019

63

19

CBR020

236

80

CBR021

241

123

CBR022

256

174

CBR023

223

83

CBR024

236

78

CBR025

236

59

CBR026

31

133

CBR027

53

31

CBR030

49

53

CBR031

194

124

CBR032

188

103

CBR033

98

138

CBR034

229

120

CC31002

50

48

CC32005

80

64

CC32011

113

37

CC32025

68

103

CC32026

61

97

CC33014

76

93

CC33016

71

87

CC33017

87

87

CC33018

70

65

CC33025

70

94

CC33027

88

92

CC33028

95

80

CC34002

140

60

CC34003

137

85

CC34006

130

70

CC34008

115

65

CC34009

112

65

CC34011

125

50

CC34012

125

65

CC34022

85

93

CC34023

94

76

CC34027

95

62

CC34036

117

65

CC34038

110

65

CC34039

93

88

CC34041

103

72

CC34042

104

75

CC34043

103

57

CC34044

106

57

CC40002

183

24

CC40003

186

18

CC40009

231

32

CC40012

195

28

CC40013

195

23

CC40019

236

30

CC40023

226

35

CC40032

261

26

CC40033

260

39

CC40043

260

32

CC43010

5

107

CC43011

5

104

CC43013

9

107

CC43014

9

103

CC43016

26

101

CC43017

27

81

CC43021

27

88

CC43026

27

90

CC43027

27

93

CC43028

27

95

CC43030

17

104

CC43031

17

114

CC43032

45

7

CC44001

252

49

CC44002

252

66

CC46014

171

108

CC46018

201

107

CC46019

204

107

CC46036

209

110

CC46037

211

115

CC46038

208

105

CC47001

183

116

CC47002

191

122

CC50003

86

163

CC50006

59

149

CC50011

45

153

CC50013

68

135

CC52001

29

159

CC52002

24

154

CC52046

86

63

CC52048

89

66

CC57023

87

110

CC58002

16

125

CC58006

102

130

CC60039

175

183

CC60043

171

196

CC61011

113

148

CC61012

105

161

CC61014

110

158

CC61026

168

149

CC61027

174

149

CC61031

136

150

CC61032

143

150

CC80011

186

79

CC80012

184

79

CC80013

176

79

CC80016

135

96

CC80021

242

83

CC80042

229

88

CC80043

232

88

CC80048

224

88

CC80051

175

91

CC80053

196

98

CC84002

214

82

CC87001

199

80

CC87002

224

66

CC87003

222

66

CC87007

210

67

CC87011

170

88

CC87012

193

98

CC87013

193

100

CC87014

219

88

CC87061

232

120

CD32011

127

38

CD43017

21

75

CD43021

23

75

CD46006

159

121

CD46007

159

118

CD46008

159

116

CD46021

125

97

CD46026

126

103

CD46041

124

107

CD50011

115

99

CD50016

28

133

CD52001

24

150

CD57011

86

141

CD60034

171

193

CD60046

179

188

CD60047

177

180

CD61013

105

156

CD80017

169

76

CD80018

169

79

CD80019

169

81

CD81083

239

189

CIC34010

115

58

CR21504

109

185

CR31003

21

46

CR31004

25

55

CR31006

19

53

CR32011

109

36

CR32012

118

35

CR32013

123

37

CR32014

125

33

CR32016

112

31

CR32018

85

99

CR32019

89

96

CR32021

83

110

CR32022

76

105

CR32023

72

105

CR32024

82

92

CR32026

91

38

CR32027

79

94

CR32029

82

95

CR33014

75

89

CR33025

70

89

CR34001

141

81

CR34003

134

81

CR34023

86

80

CR34027

100

72

CR34036

94

72

CR34037

90

58

CR34042

105

72

CR34056

95

97

CR40001

181

29

CR40002

185

28

CR40003

185

8

CR40004

191

7

CR40007

210

8

CR40011

198

38

CR40012

195

32

CR40013

198

9

CR40014

198

6

CR40017

204

7

CR40022

221

12

CR40024

221

15

CR40031

241

44

CR40032

258

39

CR40041

241

28

CR40042

258

32

CR43011

5

109

CR43012

5

102

CR43014

26

98

CR43017

16

74

CR43018

16

81

CR43021

56

85

CR43023

18

75

CR43026

18

86

CR43027

17

91

CR43028

18

98

CR43030

16

94

CR43031

16

86

CR43033

16

98

CR43036

17

110

CR43038

17

108

CR44001

255

50

CR44002

255

65

CR44007

261

76

CR44008

232

62

CR46001

176

115

CR46002

176

120

CR46003

176

124

CR46004

166

108

CR46006

176

118

CR46007

176

122

CR46008

180

122

CR46014

169

108

CR46016

189

116

CR46021

126

95

CR46022

129

96

CR46026

127

100

CR46033

186

117

CR46038

212

105

CR46039

191

107

CR46041

128

107

CR46042

111

81

CR47002

185

124

CR47003

185

126

CR50013

66

135

CR50016

24

138

CR50023

25

133

CR52001

9

140

CR52047

87

60

CR52051

92

72

CR52052

73

65

CR57002

77

131

CR57003

80

135

CR57004

87

131

CR57008

87

136

CR57011

92

137

CR57012

90

136

CR57013

123

131

CR57014

94

132

CR57016

107

88

CR57017

104

88

CR57020

95

102

CR57022

87

107

CR57023

87

112

CR58000

16

132

CR58002

20

125

CR58003

14

136

CR58005

123

135

CR58006

90

132

CR58007

98

134

CR58008

112

135

CR60039

175

186

CR60046

181

185

CR61012

100

153

CR61013

102

161

CR61022

16

140

CR61023

10

149

CR80002

245

130

CR80007

209

79

CR80008

212

79

CR80011

189

79

CR80012

191

79

CR80013

194

79

CR80014

181

90

CR80016

184

94

CR80017

171

73

CR80018

181

79

CR80019

174

79

CR80022

232

79

CR80023

227

70

CR80026

219

79

CR80027

217

79

CR80031

161

80

CR80032

160

51

CR80036

207

71

CR80037

207

79

CR80039

184

98

CR80042

231

95

CR80046

210

73

CR80047

236

83

CR80048

222

88

CR80050

204

79

CR80051

206

88

CR80052

194

94

CR80053

196

94

CR80054

199

98

CR80056

231

126

CR80057

229

79

CR81001

243

130

CR81002

227

141

CR81003

231

135

CR81006

234

141

CR81007

239

137

CR83001

199

88

CR83002

201

88

CR83003

204

88

CR83004

209

88

CR84001

256

183

CR84002

255

177

CR84003

214

79

CR87001

227

88

CR87002

224

71

CR87003

222

71

CR87012

191

94

CR87013

189

94

CR87015

212

88

CT32014

115

31

CT32015

108

31

CT32020

80

88

CT32025

73

101

CT34001

138

81

CT40020

222

31

CT40030

223

25

CT46006

171

116

CT46007

171

121

CT46008

171

125

CT46020

132

96

CT46025

132

101

CT46040

132

107

CT50020

31

126

CT57005

84

135

CT57016

111

88

CT57020

91

107

CT57025

96

108

CT58005

10

125

CT58006

101

134

CT58007

106

134

CT58010

10

131

CT80023

232

69

CT81000

227

135

CT81005

234

135

Pos.-Nr./

Koordinaten/

Pos. No.

Coordinates

X

Y

CUC 7350

GRUNDIG Service

4 - 6

Platinenabbildungen und Schaltpläne / Layout of the PCBs and Circuit Diagrams

Summary of Contents for ST 55 - 750

Page 1: ...nuals for the Complete Service nderungen vorbehalten Printed in Germany Service Manual Sach Nr Subject to alteration VK 22 1095 Service Manual Part No 72010 016 80 SERVICE MANUAL D Btx 32700 CUC 7350...

Page 2: ...pare Parts List 5 1 5 8 GB D Inhaltsverzeichnis Seite Allgemeiner Teil 1 1 1 15 Technische Daten 1 3 Modul bersicht 1 3 Hinweise zu den Bauteilen und Oszillogrammen 1 4 Sicherheits und Servicehinweise...

Page 3: ...iten Text 1 pages text Musikleistung Music power 2x 8W 2x 8W 2x 8W 2x 8W 2x 8W Anschl sse Front Connections front Kopfh rer Headphones Stereo 3 5mm Klinke stereo 3 5mm jack Video IN 1x Cinch FBAS 1x C...

Page 4: ...rato di carbone Resistencia de capa de carb n Film carbonique Metalloxidwiderstand Metal oxid resistor Resistenza ad ossido metallico Resistencia de xido met lico M taloxide Schwer entflammbarer Wider...

Page 5: ...eflection unit or loudspeaker On completion of the repairs the leads must be laid out as originally fitted at the factory to avoid later failures or disturbances Mains cable TheTVreceivermustonlybeope...

Page 6: ...B Y 50Hz vert 15625Hz hor Segnale B Y 50Hz vert 15625Hz hor Se al B Y 50Hz vert 15625Hz hor 100 B Y B Y Signal 100Hz vert 31250Hz hor B Y Signal 100Hz vert 31250Hz hor Signal B Y 100Hz vert 31250Hz h...

Page 7: ...ndcastle 100Hz vert 31250Hz hor 50 SSC Supersandcastle 50Hz vert 15625Hz hor SUR ROUND Surround SYNC Sync Signal Sync Signal Signal sync Segnale sync Se al de sync FH Hochspg EHT voltage Haute tens Al...

Page 8: ...betr Switching volt data mode Tens de commut fonct donn es Tens di commut dati Tens conmut datos U UDATA EXT Schaltspg U Data extern Switching volt Data ext Tension de commutation U Data externe Tens...

Page 9: ...ens de regul retardee Tens regul retardada HOR Horizontale Ansteuerung Horiz drive Synchr lignes Pilotaggio orizz Exitaci n horiz HOR 2FH 31250Hz Ansteuerimp f r Zeilenendstufe 31250Hz Triggering puls...

Page 10: ...UILLE EC EST MONTE NOT FITTED IF HEADPHONE SOCKET IS FITTED ONLY WITH HEADPHONE SOCKET IS FITTED NO EXISTE CUANDO EL RECEPTOR IR ESTA EQUIPADO N EXISTE PAS SI REC IR EST MONTE NOT FITTED IF IR RECEIVE...

Page 11: ...Ger t ausgeschaltet ist k nnen durch Blitzschlag in das Stromnetz und oder in die Antennenleitung Besch digungen auftreten Bei Gewitter sollten Sie deshalb den Netz und Antennenstecker ziehen Sch tzen...

Page 12: ...x oder c dr cken um gew nschten Standard zu w hlen In der zweiten Zeile kann die Farbnorm ver ndert werden Die Stellung COLOR AUTOMATIC braucht normalerweise nicht ver ndert werden Sollten Probleme au...

Page 13: ...te direkt abrufen Antwortfreigabe Seiten STOP Funktionen mit Taste x oder c anw hlen und mit Taste Oaufrufen Die Funktionen 1 3 4 und 5 k nnen auch ohne Aufrufen der Dialogzeile folgenderma en ausge f...

Page 14: ...den Tasten die Men tafel in die Mitte stellen Service and Special Functions 1 Special Functions 1 1 Storing the Analog Values Theenteredanalogvaluesareeitherstoredautomaticallyafterapprox 8 seconds or...

Page 15: ...he Hotel Mode Select Hotel ON in the Service Menu When the Hotel Mode is activated it is no longer possible to call up the station channel menu with the PC AUX button the currently set volume level is...

Page 16: ...Allgemeiner Teil General Section CUC 7350 1 16 GRUNDIG Service Notizen Notes...

Page 17: ...ference voltage provided at Schaltungsbeschreibung 1 Netzteil 1 1 Prinzipschaltung Stromrichterk nnensubharmonischeSchwingungenaufweisen wenn sie mit einem Arbeitstakt 50 bei kontinuierlichem Induktio...

Page 18: ...ompensation 1 2 Voltage Feedback Input 4 8 RT Vref R R 2 5V 3 6V Vref UVLO Vcc UVLO Vcc 7 36V Vcc Vin Vc Output Power Ground Current Sense Input 7 6 5 3 Rs T665 R S Q PWM Latch Sink Only Positive True...

Page 19: ...ie Aus gangsports 16 17 18 des P mit einer Amplitude von ca 3 5V an die Bildrohrplatte Anschlu RGB 1 3 5 2 System Control 2 1 Microcomputer The mask programmed 8 bit Microcomputer IC80000 decodes the...

Page 20: ...F32005 Das vom Oberfl chen wellenfiltergeformteSignalgelangtsymmetrischandiePins48und49 2 7 Protection Circuit USchutz The horizontal flyback pulse is fed from the collector T53001 via the resistors R...

Page 21: ...Signal The external CCVS signal from the Cinch socket is available at IC34015 17 On Pin 11 the CCVS signal from the Scart socket is present on VHS playback and on Pin 10 the chroma signal on S VHS pl...

Page 22: ...S signal together with the sound difference signal passes through a bandpass made up of CR32027 CT32025 CR32023 C32023 and L32026 which separates the intercarrier signal from the CCVS signal to Pin 15...

Page 23: ...eneration of the Horizontal and Vertical Sync Signals The TV signal processor IC34015 13 17 is connected to the CCVS signalfromtheIFandfromtheEURO AVsocket Followinganinternal colour trap where the co...

Page 24: ...ernal amplification the horizontal drive signal for the line output transistor is provided at IC34015 40 hat wird das Y Signal zur weiteren Signalverarbeitung und f r das Amplitudensieb aufgeteilt Das...

Page 25: ...c generator has been replaced by a line counter When no synchronising signals are received the line oscillator is free running From this line oscillator the vertical oscillator is derived by counting...

Page 26: ...UTER IC80000 13 17 8 19 15 17 Zeilentrafo Line Transformer IC34015 8 6 16 1 3 47 8 zur Zeilenendstufe to Line Output Stage 40 Horizontaltrigger Triggering Horizontal T52005 A OFW F32005 14 29 16 30 CI...

Page 27: ...aster ohne Finetuning und m glichst niedrigem Kanal abstimmen Servicemen mit Taste aufrufen siehe oben Mit die Zeile AFC ALIGN anw hlen FuBK Testbild einspeisen Farbkontrast i Minimum Kontrast Maximum...

Page 28: ...en derAbgleichfunktionen oderdurchVerlassendesServicemen s Mit Taste das Servicemen verlassen Vorbereitung Programmplatz mit Senderbild aufrufen Servicemen mit Taste aufrufen siehe oben Mit die Zeile...

Page 29: ...e horizontal lines for maximum sharpness With the control SCREEN at the line transformer below the focus control set the black level at the test point with the highest black level to 100 105V for 14 a...

Page 30: ...est pattern for Alignment functions 0 2 3 4 For adjusting the Vertical Slope use a video generator eg Grundig VG 1000 Alignment functions 0 Horizontal shift 1 Vertical Slope 2 Vertical Amplitude 3 S C...

Page 31: ...8 R53012 D50003 D61003 D50006 D57013 R53011 R52004 R52008 R21503 R53014 R54001 E B T53001 L53011 L53014 R53017 BR106 BR099 BR102 C61007 C54001 C53016 C53013 C53017 1 15 TON ZF L53012 R54002 R57016 R52...

Page 32: ...CR34036 CR32023 CR32021 CR80016 CR44001 CR80007 CR87001 CR34037 CR83001 CR80052 CR80051 CR80031 CR46026 CR80027 CR80026 CR80022 CR80042 CR80037 CR80011 CR84002 CR83003 CR83004 CR83002 CR80023 CR80013...

Page 33: ...17 68 249 C54001 123 191 C54006 99 179 C54007 88 172 C57012 95 133 C57016 118 97 C60011 209 174 C60012 210 164 C60013 191 185 C60014 198 177 C60018 152 180 C60018A 151 179 C60018B 152 180 C60024 170 1...

Page 34: ...118 35 CR32013 123 37 CR32014 125 33 CR32016 112 31 CR32018 85 99 CR32019 89 96 CR32021 83 110 CR32022 76 105 CR32023 72 105 CR32024 82 92 CR32026 91 38 CR32027 79 94 CR32029 82 95 CR33014 75 89 CR330...

Page 35: ...16 2V cm 10 s cm R B G 0V 0V 0V 16A 2V cm 10 s cm mit Text with Text R B G 0V 17 500mV cm 5ms cm 0V 18 1V cm 5ms cm 0V 19 10V cm 5ms cm 0V 20 2V cm 5ms cm 0V 21 5V cm 10 s cm 0V 22 5V cm 10 s cm 0V 23...

Page 36: ...3 9 8 0 48 2 10 11 12 13 b c 1 KEYBOARD 29304 779 02 CLAVIER KEYBOARD TECLADO TP 720 0V 0V SCL SDA 27 2V cm 200 s cm 0V 28 2V cm 100ns cm 0V 29 1V cm 5ms cm V Sync 0V 30 1V cm 20Ms cm H Sync 0V 31 1V...

Page 37: ...AV U POWER OFF U POWER OFF BC858B CT46040 BC858B CT46020 BC858B CT46025 07202 342 97 F32001 L 10u L31001 L 10u L31002 M M M M M M P 1 2 S M M M n V M M M M K 470p C60024 M M M M M M M M M M M M M M M...

Page 38: ...R53017 0 1u CC32025 4 7 R40019 M 4 7 R40009 10k R53015 10 R50003 2 2 R50001 22 R52006 10 1 R54001 R50004 5 6k 390p C54006 100p C50001 L53001 1 R53011 4 R53012 6 8 1 R53014 1 R21503 0 51 1 R52008 150 1...

Page 39: ...640 CD2121 B11P CD2124 BB640 CD2103 B10P CD2104 BA592 CD2031 BA592 CD2071 BA592 CD2101 470 CR2135 4MHz Q2143 Druck Druck Druck TEST VSS A2 A1 A0 SCL SDA VCC 1 2 3 4 5 6 7 8 X24C01 CIC2120 3 1 BUFFERS...

Page 40: ...p CC2142 100p CC2066 10n CC2118 1n CC2102 39n CC2153 1 2p CC2178 1 2p CC2179 2 7p CC2183 2 7p CC2184 2 7p CC2186 2 7p CC2187 1 8p CC2189 1 8p CC2191 10n CC2192 10n CC2086 1n CC2076 120p CC2078 10n CC2...

Page 41: ...LAM PREVISTO PARA SOLO PREVISTO PREVU ONLY IF REQUIRED NUR VORGESEHEN 906 5 4 8 3 9 7 1 0 12V AL TRANSF DE LINEAS ALLO TRASF DI RETE VERS TRANSF ALIMENT TO LINE TRANSFORMER ZUM ZEILENTRAFO PLACA ZOCAL...

Page 42: ...L EURO AV AUDIO R EURO AV AUDIO L EURO AV AUDIO R AUDIO R EURO AV L3962 150 CR3963 10u L3961 3n3 CC3947 BC858B CT3945 3n3 CC3945 100n CC3964 SDA SCL BC858B CT3947 STL 100p CC3958 1k8 CR3946 1k8 CR3942...

Page 43: ...BC848C CT2265 BC858 CT2295 M 2 2 CR2231 15p CC2231 0 1u CC2237 BC848 CT2290 0 1u CC2201 180 CR2202 0 1u CC2236 2 7p CC2225 0 1u CC2240 M STL 0 1u CC2243 M M 3 2 1 MC78M05 IC2201 M M LL4148 CD2215 STL...

Page 44: ...20 9 19 18 17 16 15 14 13 12 11 10 8 7 6 2 1 MC68HC705J2P IC98010 K 27p C98004 10M R98006 BR98002 K 27p C98003 4 7k R98002 4MHz Q98006 BR98006 F 0 1u C98001 n V PB4 PB0 PB1 PB2 PA4 VDD PA2 R G B FBKG...

Page 45: ...PLATTE 07 PROCESSOR BOARD 07 KEIN E TEIL NO SPARE PART X SIEHE GESONDERTE E LISTE X SEE SEPARATE PARTS LIST WW WAHLWEISE WW OPTIONAL SACH NR PART NO 29701 093 01 02 03 04 07 BEZEICHNUNG DESCRIPTION SA...

Page 46: ...DIODE LS 4148 CD 46041 8325 004 148 SMD DIODE LS 4148 CD 50011 8325 004 148 SMD DIODE LS 4148 CD 50016 8325 004 148 SMD DIODE LS 4148 CD 52001 8325 004 148 SMD DIODE LS 4148 CD 57011 8325 004 148 SMD...

Page 47: ...100 107 R CHIP 0805 27 KOHM 5 CR 57012 8706 100 131 R CHIP 0805 270 KOHM 5 CR 57013 8706 297 121 R CHIP 1206 100 KOHM 5 CR 57014 8706 100 289 R CHIP 0805 4 7 KOHM 2 CR 57016 8706 100 121 R CHIP 0805 1...

Page 48: ...2 342 97 ZF SPULE F 32005 8319 001 984 OFW G 1984 M F 32020 8141 112 405 FILTER 7X7 405 F 32021 8602 755 021 CER TRAP 21 TPS 5 5 MHZ F 33025 8140 535 390 SPULE 7X7 390 FARBE 307 IC 34015 8305 338 374...

Page 49: ...LIP UPPER WW 29607 285 11 2 SPULENKLAMMER OBEN COIL CLIP UPPER 0024 000 09246 193 31 ENTMAGNETISIERUNGSSPULE DEGAUSSING COIL WW 09246 193 71 ENTMAGNETISIERUNGSSPULE DEGAUSSING COIL 0025 000 8300 020 5...

Page 50: ...E DEGAUSSING COIL 0025 000 8300 020 534 BILDR A 51 JSW 90X03 ORI PICT TUBE A 51 JSW 90X03 WW 8300 020 532 BILDR A 51 EAM 31X01 PHI PICT TUBE A 51 EAM 31X01 WW 8300 020 533 BILDR A 51 JAR 43X01 MW PICT...

Page 51: ...ice Manual Sicherheit Sach Nummer 72010 800 00 sowie zus tzlich dieeventuellabweichenden landesspezifischen Vorschriften The regulations and safety instructions shall be validasprovidedbythe Safety Se...

Page 52: ...GAUSSING COIL 0025 000 8300 020 037 BILDR A 34 EAC 01X06 PHI PICT TUBE A 34 EAC 01X06 0026 000 29201 360 01 ANODENKAPPE M HOCHSPG KABEL C R T SOCKET 0028 000 29631 816 01 2 GEBERHALTERUNG REMOTE CONTR...

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