Sennheiser EM 100 G2 Service Manual Download

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EM 100 G2, EM 300 G2, EM 500 G2
08/2004

28/32

510791

801

C211

C212

C213

C214

C215

C230

C231

C232

C233

C240

C24

C242

C243

C244

C245

C246

C247

C630

C631

D211

D21

D213

D214

D225

D240

D630

D631

D63

L240

L641

Q21

Q211

Q212

Q21

Q225

Q226

Q24

Q241

Q242

Q243

Q244

Q247

Q248

Q600

Q601

Q602

Q630

Q632

R2
1

R210

R211

R212

R213

R214

R215

R216

R217

R21

R219

R220

R221

R225

R226

R227

R228

R229

R230

R240

R241

R242

R243

R244

R245

R246

R247

R24

R251

R252

R254

R256

R257

R260

R261

R600

R601

R602

R603

R604

R605

R606

R607

R608

R609

R610

R630

R631

R632

R633

R634

R635

R636

R637

R641

R642

R644

R645

R646

R647

R700

TP228

TP232

TP243

TP602

TP604

TP630

U210

U227

C210

C225

C226

C227

C228

C229

D210

F210

J210

L225

L226

P175

TP176

TP178

TP211

TP230

U225

U226

U177

U176

TP640

TP182

R38

R35

R23

R200

R20

R199

R198

R19

R193

R19

R184

R182

R181

R180

R18

R17

R173

R17

R12

R1
1

R1012

R1011

R1010

R10

J640

D177

C179

C178

C17

C176

C174

C172

C15

C14

C13

C12

R13

Y3
Y2
Y1

U620

U175

TP276

TP274

TP270

TP181

TP180

R99

R998

R9
4

R74

R73

R72

R47

R4
6

R45

R31

R22

R20

R19

R191

R190

R189

R188

R187R18

R185

R183

R178

R177

R17

R175

R172

R170

R17

R15

R127

R113

P64 0

L640

J700

J175

J100

D179

D176

D175

C640

C20

C17

C173

C171

C10

C151

C50

C51

C52

C75

C76

C7
7

C79

Q50

R114

R126

R150

R153

R154

R158

R159

R50

R51

R52

R53

R54

R55

R56

R57

R58

R59

R69

R70

R71

R75

R76

R77

R78

R80

R91

R92

R995

R996

R997

TP268

TP272

TP50

TP52

TP54

TP8

U50

U51

U52

U75

C103

C130

C131

C132

C133

C134

C135

C136

C137

C138

C139

C150

C152

C155

C78

C8
0

C81

C82

C83

C84

D150

D151

Q300

R128

R130

R131

R132

R133

R134

R135

R151

R152

R155

R156

R157

R160

R161

R300

R310

R313

R314

R501

R79

R81

R83

R84

R85
R86

R87

R88

R89

R90

TP150

TP76

U110

U101

U100

U300

U76

R8
2

C153

C154

C300

C301

J300

R136

R137

R138

R162

R164

R165

R301

R304

R306

R311

R500

TP130

TP152

TP154

U301

C10

C102

C115

C116

C11

C118

C119

C120

C121

C122

C60

C6
1

C62

C63

C64

C9
5

C96

C97

C9
8

C99

D115

D95

Q9
5

R100

R101

R102

R103

R104

R105

R106

R107

R108

R109

R110

R111

R112

R115

R11

R117

R118

R119

R120

R121

R122

R123

R124

R125

R60

R61

R62

R6
3

R64

R65

R66

R67

R68

R95

R96

R97

R98

R99

TP116

TP60

TP96

U60

U95

U96

Y95

R163

R302

R312

R315

R9
3

D4
0

R139

TP183

Mainboard, com

onent

side

Summary of Contents for EM 100 G2

Page 1: ...uipped with the HDX noise reduction system Each receiver has a switching bandwidth of 36MHz in the UHF band Features 1440 UHF frequencies available for interference free reception Direct channel selection via presets Scan function for finding free receive channels Low battery warning on transmitter and receiver Squelch pilot tone for interference free operation Sound check mode for checking transm...

Page 2: ... alter and repair For repairs and exchanges only approved components according to the current spare parts list are allowed It is forbidden to alter the product unauthorised If not observed the adaptor is legally liable for possible results of damage repairs exchanges The following instructions for overhaul and testing must be followed In case of unusual problems please contact your Sennheiser dist...

Page 3: ...ring set up 13 5 3 Test table 14 5 4 Reading out changing unit data via the DATA service interface 17 6 Circuit diagrams 19 Block diagram 19 Mainboard circuit diagram part 1 3 20 Mainboard circuit diagram part 2 3 21 Mainboard circuit diagram part 3 3 22 RF board circuit diagram part 1 3 23 RF board circuit diagram part 2 3 24 RF board circuit diagram part 3 3 25 Monitoring module MOD A020 circuit...

Page 4: ...n two separate buttons on EM 100 G2 쐄 Button SET 쐂 Button ON POWER Back panel 쐆 Cable grip for mains unit connector cable 쐊 DC socket for power supply unit connection DC IN 쐎 XLR socket for AF output AF OUT BAL 쐅 Audio output jack socket AF OUT UNBAL 쐈 RJ45 socket as service interface DATA 쐉 BNC socket as antenna input 2 ANT II 씈 Type plate 씉 BNC socket antenna input 1 ANT I DATA ON SET 쐅 쐈 쐉 씈 씉 ...

Page 5: ...rinciple _____________________ true diversity Frequency ranges_____________________ 518 554MHz 626 662MHz 740 776MHz 786 822MHz 830 866MHz Switching bandwidth __________________ 36MHz Receive frequencies ___________________ 1440 Channel separation ___________________ 400kHz Channel grid_________________________ 25kHz 1 Oscillator frequency _________________ fOsc fe 241MHz 1 Intermediate frequency ...

Page 6: ...0Ω 2 3 AF part Compander system ____________________HDX S N AF OUT EM 100 G2 _____________________ 110dB A EM 300 G2 _____________________ 112dB A EM 500 G2 _____________________ 115dB A AF output voltage nominal deviation Unbalanced _____________________1 25V 4dBu Balanced _______________________2 45V 10dBu AF output voltage peak deviation Unbalanced 3 4V 13dBu Balanced 6 8V 19dBu AF frequency re...

Page 7: ...g If the squelch threshold you set is exceeded U1 uses U52 to switch the AF signal and activates the AF high pass filter with U75 1 the AF low pass filter with U75 2 and U76 1 the HDX expander with U100 and the AF stages U101 1 U101 2 and U76 2 With EM 500 G2 the AF stages U101 1 and U101 2 are used via analog switch U300 as LOW CUT filters with a threshold frequency of 200Hz and with U301 as HI B...

Page 8: ...1 6 Service interface RJ45 socket The service interface DATA with RS485 protocol located on the back panel of the unit fulfills an important function The RJ45 socket allows the relevant EEPROM pa rameters on the RF module and the simulated EEPROM to be read out and modified in the microprocessor This interface also enables a software update as part of the hardware options For example the RJ45 sock...

Page 9: ...wo level adjusters for the AF outputs For communication with the processor on the mainboard the RF module contains the U700 EEPROM in which the relevant frequency range data the RSSI table and other status data are stored Communication is processed via the same bus used by the microprocessor to communicate with the PLL U500 frequency setting 3 3 Display module The display module for the status dis...

Page 10: ...0 G2 EM 300 G2 EM 500 G2 08 2004 10 32 4 Exploded view 4 1 Exploded view EM 100 G2 001 002 003 002 005 004 005 004 008 009 012 018 018 018 017 013 013 016 016 019 007 003 011 020 020 006 Pos 006 incl 017 018 ...

Page 11: ... G2 EM 300 G2 EM 500 G2 11 32 08 2004 4 2 Exploded view EM 300 G2 EM 500 G2 001 002 003 002 008 009 011 012 013 014 016 016 019 020 015 012 010 013 007 003 006 Pos 006 incl 017 018 005 004 005 004 020 017 018 ...

Page 12: ...washer 006 Front module with display 007 Rear panel 008 Label 009 PCB mainboard 010 PCB monitoring module EM 500 G2 only 011 PCB RF module 012 Lens screw 013 Flat cable 15 pin 014 Flat cable 30 pin 015 Knob EM 500 G2 only 016 Socket BNC 50R 017 Key cap ON POWER 018 Key cap UP DOWN SET 019 Built in plug XLR3M 020 Lens screw ...

Page 13: ...to at least 1 5GHz 1 RF signal generator 1 AF level measuring device 1 Oscilloscope 1 Multimeter 1 Laboratory power supply unit 5 2 Measuring set up 230 00 MHz DATA RF signal generator AF level measuring device Oscilloscope EM x00 G2 Laboratory Spectrum analyzer Multimeter Other measuring equipment DC IN RF IN AF OUT power supply unit ...

Page 14: ...WER ON Monitoring of all display segments 1 10 Monitoring of the il luminated 왖왔 SET ON buttons not EM 100 G2 See 1 9 See 1 9 2 Mainboard current and voltage measurement 2 1 Standby See 1 9 POWER Off VOL min R1 AF level max 50mA Set laboratory power supply unit current limiter to ION 1A 2 2 Current consumpti on during operation See 1 9 POWER On VOL min R1 AF level max 200mA See 2 1 2 3 Commissioni...

Page 15: ... 1 Use TUNE to set the highest receiving frequency TP 17 3 0V to 4 2V 3 3 Oscillator 3 3 1 1 frequency measurement See 3 1 Use the SET and DOWN buttons to switch to the mid receiving frequency then spectrum analyzer TP 1 LO1 fE 241MHz 3 3 2 1 Oscillator level See 3 1 See 3 3 1 TP 102 TP 202 4 3 V Measurement takes place in directly via the voltage at the 1st oscillator 3 3 3 2 frequency measuremen...

Page 16: ...tarts to clip 5 3 Volume control 12VDC at the DC socket POWER On No scratching is heard on turning and there is notone drop out 6 Display module The EM 100 G2 exhibits a change in the form of individual segments The EM 300 G2 and EM 500 G2 exhibit consistent changes in color display 6 1 RF display RF signal at ANT I Mod off RF 3µV RF signal at ANT II Mod off RF 3µV EM 100 G2 EM 300 G2 EM 500 G2 EM...

Page 17: ...ts an RS232 RS485 converter an RS232 cable to connect the PC and the converter an RS485 cable to connect the receiver and the converter You can order the service set directly from Sennheiser service set for software ew G2 ID no 094739 price group 161 5 4 3 Required software The service software is available for download free of charge on our Internet homepage www sennheise com Service Distributors...

Page 18: ...t Your connected unit is detected 2 Click the button EXECUTE ALL in the Info tab Result All unit data is read out If all the data are successfully read out the message Success appears Note If you perform individual actions in the Info or Service tabs you must subsequently return the unit to operational status Click on Close Device once the actions have been completed to do this 3 Switch to the Ser...

Page 19: ...N 241MHz MIXER 241MHz MIXER BPF EE EPROM 10 5 16VDC IN AF 2 AF 1 AF 1 RF 2 RF 1 MONITOR MODUL EM500 ONLY AF OUT BALANCED LCD SUPPLY UNIT MAIN uC 300903Prl1530 PLL VCO MCK 4MHz MCK Main clock MCK 4MHz PILOT DETECTOR 32 768kHz 6Vsw 7Vsw MAIN BOARD AF 2 FRONTMODUL AF AF 8Vsw DATA U100 Y100 U300 Y302 Q304 Q504 Q506 U500 U200 Y200 U400 Y402 Q404 Y404 U400 U400 U700 R460 U402 R360 U302 RF BOARD Y304 Q30...

Page 20: ...W 8VSW 6V_DD 5VCC 10UK L225 10UK L240 BAT54 D213 BAV99W D630 BAV99W D631 BAV99 D240 AF_OUT DATA DATA PWR_ ON AF_OUT VOL_ LO W TS102 L226 BAV99W D212 BAV99W D211 22u35V C240 22u35V C210 BAV70 D225 WESTERN 4POL J5 1 2 3 4 47KJ R211 2 2nK C212 100nK C640 0 75 F210 SM4007 D210 BAV99W D214 LCD_D0 ROKA5202580 J210 1 2 3 4 30FLZ RSM1 TB J640 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ...

Page 21: ...R10 47RJ R126 47RJ R127 330KF R995 165KF R996 82 5KF R997 41 2KF R998 10MJ R38 4MHZ Y1 Y3 27pJ C2 100KJ R21 10KJ R72 0 0R R73 0 0R R74 1 0MJ R70 47KJ R999 RSSI2_LEV RSSI1_LEV DEV_L TXD_EN VOL_2 VOL_1 SET UP DOWN LCD_D7 ON OFF LCD_D6 LCD_D5 VOL_0 LCD_D3 LCD_D4 LCD_D2 LCD_D1 PLL_CS LCD_D0 PWR_ON VOL_ LOW LCD_ CS1 HI_BOOST LCD_ CS2 LOW_CUT LCD_LIGHT LCD_RS LCD_RW LCD_E BUS_CLK BUS_DAT PILOT ANT_1 PWR...

Page 22: ... 6VSW 5VSW 6VSW 6 5VSW 6 5VSW 6VSW PILOT NOISE DEV_L TX_BATT AF_180 AF_0 AF_OUT AF_MON IN_AF550 AF_OUT BAT74 1 D175 BAT74 D175 2 BZA856A D176 BZA856A D177 BZA856A D179 C175 100pJ C176 22nJ C75 1 0nF C78 1 0nF C80 22nJ C76 22nJ C77 3 3nF C82 1 0nK C95 1 2pB C99 10pC C97 10nK C100 270pJ C116 1 0nK C120 270pJ C117 270pJ C118 270pJ C119 10nK C101 10nJ C138 3 3nJ C137 C300 100nJ C301 100nJ 10nK C102 4 ...

Page 23: ... 1 3 GND 5 7 out 4 out 2 0 5pB C110 0 5pB C210 TP100 TP200 TP101 TP201 5V 5V 5V 5V 100RJ R100 100RJ R200 10KJ R104 270RJ R108 470RJ R106 470RJ R102 470RJ R206 470RJ R202 10KJ R204 270RJ R208 ZF1_2 ZF1_1 BFP405 Q100 2 4 1 3 BFP405 Q200 2 4 1 3 4 7KJ R110 4 7KJ R210 68NJ L134 68NJ L130 68NJ L230 68NJ L234 RF IN 2 RF IN 1 8mA 2mA M1 M2 1 2 C200 C100 4 3 Range 5 L100 L200 Variable RF Parts Range4 EM10...

Page 24: ...0nK C460 10nK C304 100nK C324 100nK C442 10nK C360 220pK C446 1 0pB C306 100nK C352 220pK C346 10nK C300 100nK C342 8 2pC C316 100nK C452 10uM C350 10uM C450 1 0KJ R428 1 0KJ R328 390RJ R416 1 0KJ R308 10KJ R322 220RJ R310 390RJ R316 10KJ R408 390RJ R430 390RJ R330 390RJ R301 390RJ R401 in out GND 10 7MHz Y402 1 2 4 6 in out GND 10 7MHz Y304 1 2 4 6 in out GND 10 7MHz Y404 1 2 4 6 in out GND 10 7M...

Page 25: ...KJ R804 10KJ R806 22KJ R810 100KJ R802 22KJ R812 10KJ R800 10KJ R702 0 0R R700 C556 1 5pB C572 10nK C564 22pJ C522 1 0nK 10nK C506 C528 1 0nK 10uM C804 TP10 TP13 TP14 TP15 TP16 L516 47nJ L506 220nJ L512 220nJ L518 4 7nG L514 TS102 L520 TS102 L500 TS102 L502 TS102 TS102 L700 L510 220nJ L504 220nJ TP20 TP3 TP19 TP2 TP21 D500 BB565 BB565 D510 TP23 TP22 TP800 TP802 TP18 TP24 C516 0 22uM20V 0 22uM20V C...

Page 26: ...17 2 2KJ R8 2 2KJ R9 2 2KJ R10 4 7KJ R11 4 7KJ R12 1 0MJ R13 220KJ R18 1 0KJ R22 120KJ R16 470KJ R19 470KJ R20 10KJ R21 47KJ INV1 GND VP2 VP1 STANDBY OUT1 INV1 INV2 INV2 MUTE MODE SVRR OUT2 BUFFER VP VP U2 TDA8559T 1 2 3 4 5 6 7 8 11 12 13 14 15 16 8VSW 8VSW 8VSW 8VSW 8VSW 8VSW MUTE TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 v v U1 NJM4580V 1 3 2 1 8 4 v v U1 NJM4580V 2 5 6 7 8 4 v v U3 LM358D 1 3 2 1 8 ...

Page 27: ...8 15 NC NC NC LCD_D1 DOWN LCD_D2 UP LCD_D0 SET ON OFF I_CONST_GN 4 15 5 1 1 7 2 3 12 8 1 3 1 9 14 6 1 0 NC NC NC DOWN XXV 11 1 12 5 10 8 3 4 6 7 15 13 9 14 2 24 20 17 21 27 18 16 30 22 29 19 26 25 28 23 9 29 5 18 19 2 20 26 22 17 6 25 24 12 27 3 28 1 21 23 15 7 1 4 4 30 16 11 10 13 8 5VCC 6VSW 6 5VEE 5VCC 6 5VEE LCD_ CS1 LCD_ RW DOWN LCD_WR EN UP LCD_D0 SET LCD_D1 ON OFF LCD_D2 I_CONST_GN I_CONST_...

Page 28: ...1 TP180 R999 R998 R94 R74 R73 R72 R47 R46 R45 R31 R22 R208 R207 R205 R192 R191 R190 R189 R188 R187 R186 R185 R183 R178 R177 R176 R175 R172 R170 R17 R15 R127 R113 P640 L640 L1 J700 J5 J175 J100 D179 D176 D175 C640 C6 C5 C4 C2 0 C 2 C175 C173 C171 C1 C10 C151 C50 C5 1 C52 C7 5 C7 6 C7 7 C79 C9 Q50 R114 R126 R150 R153 R154 R158 R159 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R69 R70 R71 R75 R76 R77 R78 ...

Page 29: ...08 TP209 TP210 TP225 TP7 TP657 TP656 TP655 TP653 TP652 TP651 TP650 TP641 TP6 TP5 TP4 TP33 TP32 TP31 TP30 TP3 TP280 TP275 TP266 TP265 TP25 TP24 TP185 TP13 TP12 TP1 TP658 TP642 TP281 TP278 TP271 TP269 TP23 TP22 TP186 TP175 TP16 TP15 TP14 TP10 TP654 TP17 TP18 TP19 TP21 TP267 TP273 TP51 TP53 TP643 TP75 TP151 TP77 TP78 TP131 TP153 TP155 TP166 TP115 TP61 TP95 TP231 Mainboard solder side ...

Page 30: ... R504 R516 R520 R522 R526 R528 R532 R534 R536 R544 R546 R548 R550 R552 R558 R560 U500 Y404 C300 C304 C306 C316 C318 C320 C322 C330 C502 C528 C530 C542 C544 C546 C548 C800 C802 C804 D800 L302 L304 L504 L506 L508 L512 Q300 Q504 Q800 Q804 R300 R302 R304 R308 R412 R524 R538 R540 R542 R605 R606 R607 R608 R804 R808 R810 R812 R814 R816 R320 R310 Q502 L514 C324 C344 C113 C115 C117 C119 C138 C140 C148 C301...

Page 31: ...04 L TP10 TP13 TP15 TP16 TP18 TP2 TP200 TP201 TP202 TP3 TP4 TP402 TP6 TP8 TP1 TP19 TP20 TP21 TP22 TP23 TP24 TP25 TP17 TP303 TP600 TP604 TP802 TP602 TP800 TP100 TP101 TP302 TP102 TP5 TP7 TP14 86413 TP300 TP301 TP11 TP12 TP9 RF board solder side ...

Page 32: ...5 C16 C2 C3 C4 C5 C6 C7 C8 C9 J1 M1 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R2 R20 R21 R22 R3 R4 R5 R6 R7 R8 R9 TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 U1 U2 U3 Monitoring module MOD A020 Component side Monitoring module MOD A020 Solder side 77653L C10 C11 C12 J2 J3 R1 ...

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Summary of Contents for EM 100 G2

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Sennheiser EM 100 G2, Service Manual

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Summary of Contents for EM 100 G2

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