GrundigService1997Bull 维修电路图、原理图.pdf

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1、Service Information Bulletins 1997 2 Table of Contents Audio / Hifi RR 3500 CD, RR 650 CD Serial no. 1/97. 4 UMS1, UMS2 Serial no. 2/97. 5 R14 DPL5 Serial no. 3/97. 6 CD 436, CD 437, CD 11, CD 12, CD-IR, M30 CD Serial no. 4/97. 7 RCD400, UMS2 Serial no. 5/97. 8 TV / Sat Chassis Digi Basic, e.g. ST 7

2、0-255 IDTV/LOG, M 70-280 IDTV/LOG, SE 7089 IDTV/LOG Serial no. 1/97. 9 Chassis Digi Basic (CUC 1825, 1826), Digi Basic+ (CUC 1827) and Digi 6 (CUC 1952, 1983, 1984) Serial no. 1/97. 9 TVR 3701 SV Serial no. 2/97. 10 Chassis CUC 7301 text, e.g. P 37-730 text Serial no. 3/97. 11 Chassis CUC 7303 and 7

3、305, e.g. P 37-071, T 51-720 text, T 55-731 text Serial no. 5/97. 12 Chassis CUC 7350, e.g. ST 55-750 text Serial no. 6/97. 13 Chassis CUC 7300, e.g. P 37-740 SAT, and all sets retrofitted with the built-in Satellite Receiver SER 7300 Serial no. 7/97. 14 Chassis Digi Basic CUC 1825, 1826 and 1827 -

4、e.g. ST 63-255 IDTV/LOG, M 70-281 IDTV/LOG, SE 7089 IDTV/LOG Serial no. 8/97. 15 Chassis Digi 6 - CUC 1952, 1983, 1984 and built-in Satellite Receiver SER 150/SER 150 ET - e.g. Denver SE 8216/9 Ref./PIP, M 82-269/9 Reference Serial no. 9/97. 16 Mono-TV-Recorders TVR 3710, 5100 and 5500 Serial no. 10

5、/97. 17 Chassis Digi IV - CUC 1821/1851/1881/1892 and 1981 e.g. M 70-781 IDTV, M 70-791 IDTV, M 82-102 IDTV, M 95-102 IDTV, M 82-169 PALplus Serial no. 11/97. 18 Colour television receivers with 82/70 cm Toshiba picture tube and chassis Digi 6 - e.g. M 82-269/9 Ref, SE 8216/9 Ref/PIP, M 70-269/9 Ref

6、, SE 7016/9 Ref/PIP Trento Colour television receivers with chassis Digi Basic CUC 1805/1825/1826 and 1827 e.g. ST 63-255 IDTV/LOG, ST 72-261 IDTV/LOG, Boston SE 7090 IDTV/LOG Serial no. 12/97. 19 3 Chassis CUC 7301/7301F, e.g. P 37-070, T 51-730 text, T 55-730/5 text Chassis Digi 6 - CUC 1952, 1983

7、, 1984 and built-in Satellite Receiver SER 150/SER 150 ET e.g. Denver SE 8216/9 Ref./PIP, M 82-269/9 Reference Serial no. 13/97. 20 Chassis CUC 7303 e.g. P 37-731 text, P 45-731 text, T 55-731 text Chassis CUC 7303/7305/7350 and CRT panels 29305-022.16/-022.17, e.g. P 37-731 text, P 45-731 text, T 5

8、5-731 text, P 37-731/12 text, ST 55-750 text, XS 55/1, Lissabon SE 5576 text Serial no. 14/97. 21 Chassis Digi 6 - CUC 1842, 1894, 1952, 1962 and 1983 e.g. M 72-410 Ref., Denver SE 8216/9 PAL Plus, M 70-269/9 Ref. Serial no. 15/97. 22 Chassis Digi Basic and Digi 6 - CUC 1805, 1825, 1826, 1827, 1828,

9、 1842, 1894, 1952, 1962 and 1983, e.g. M 72-410 Ref., Denver SE 8216/9 PAL Plus, M 70-269/9 Ref Serial no. 16/97. 23 Chassis Digi Basic - CUC 1806, 1825, 1826, 1827, 1829, 1830 with CRT panels 29305-122.04/10/12/17 z.B. ST 70-255 IDTV/LOG, ST 72-261 IDTV/LOG, Atlanta SE 7220 IDTV/LOG, ST 72-261 IDTV

10、/LOG Serial no. 17/97. 24 CTV sets ST 72-261 IDTV/LOG and ST 72-261/8 IDTV/LOG with Toshiba picture tube Serial no. 18/97. 25 Satellite Receivers STR 631/632/641/642 Serial no. 19/97. 26 Colour television receivers MW 70-100/8, M 72-100 and M 72-100/8 Serial no. 20/97. 27 Video Series GV 4xx video r

11、ecorders with “ World Deck “ Serial no. 1/97. 28 GV 560HIFI Serial no. 2/97. 29 GV 6096 SV Serial no. 3/97. 30 Series GV 4xx video recorders with “ World Deck “ Serial no. 4/97. 31 GV 6096 SV Serial no. 5/97. 32 GV 660 / GV 690 Serial no. 6/97. 33 GV 5xx and GV 6xx range of video recorders Serial no

12、. 7/97. 34 GV 403, 407, 411/1, 411/2, 417, 437, 4001, 4002VPS, 4003VPS. Serial no. 8/97. 35 GV 7400 HIFI and variants, SE 7105 HIFI Serial no. 9/97. 36 SERVICE INFORMATION Audio No 1/97Product: RR 3500 CD, RR 650 CD Possible complaint: The working distance of the remote control handset is too short

13、(2m). Reason: Reverse connection of the collector and emitter of the transistor Q 901 ( remote control RC CD). Cure: Exchange the remote control or connect the transistor terminals correctly. Workshop: Check all available remote control handsets for a working range of about 4.5m and exchange or repa

14、ir them where necessary. Stores: Remote control handset for RR 3500 CD / RR 650 CD, part no. 75954-046.34. Technical Services / Information RR 3500 CD, RR 650 CD 8002 / 80125407700000 SERVICE INFORMATION Product: Audio No. UMS1, UMS2 Possible complaint: No playback at all or distorted playback of a

15、CD. Reason: Reversed polarity of capacitors C222 and C223 (1F, 50V). Cure: Solder in new capacitors C222 and C223 (1F, 50V) with the negative terminal connected to IC 07 and the positive terminal to R220 or R221. Please note that the polarity of the capacitors as shown in the Service Manual is rever

16、sed. Workshop: Check the polarity of C222 and C223 in each system coming in for repair and change the capacitors if necessary. Please correct the polarity of the capacitors C222 and C223 on page 3-15 of your Service Manual. Stores: None Technical Services / Information 5403700000 2/97UMS1, UMS2 8002

17、/8012 Product Serial No. 3/97 Service Information 54277000, 8002/8012 Central After-Sales Service Audio/HiFi 1/1 R14 DPL VDE Safety Compliance - R14 DPL To ensure that the R14 DPL receivers with the listed serial numbers are in compliance with these safety regulations, a lead for intensifying the ch

18、assis connection of these receivers must be connected additionally on the transformer circuit board. For this, press the wire lead which is soldered on the copper side between P2 and the transformer TR1 towards the upper edge of the circuit board (pin 2 is the 4th pin in the top row from the edge of

19、 the circuit board). Secure the lead in this position at 3 points, one in the middle and two at a distance of about 1cm each from the solder pad, using a heat-setting adhesive. Alternatively, this wire lead may also be removed from the copper side and reconnected on the component side. Corresponding

20、 holes are already provided. This change is to be carried out in all receivers with the serial numbers listed below. 8002805181008367839787099146 8007805681028368839987149147 8012806481058369840087329151 8013806681358370840187349158 8014806781588371840287359159 8015807481728372840387369160 801780758

21、1778373840487379161 8018807681818374840587609162 8019807882038375840687729164 8020807982048376840787999165 8021808082078377841388599166 8022808282088378843188969167 8023808382118379853589499168 8024808482188380856190329169 8025808582198381859490579173 8027808682238382863390699174 8028808782268383863

22、690769175 8029808882818384863790799180 8030808982828385863890809181 8031809083048386863990889183 8032809183278387864190909184 8033809283548388865290959197 8034809383568389867490979230 8036809483588390868291319231 8038809583608391868491329240 8040809683638393868691349252 8041809883658394870491379265

23、8043809983668395870791429266 Product Serial No. 4/97 Service Information 54287000, 8002/8012 Central After-Sales Service Audio/HiFi 1/1 CD 436, CD 437, CD 11, CD 12, CD-IR, M30 CD Possible complaint: Smoke comes out of the player, capacitors are charred. Reason: The electric strength of the capacito

24、rs C 354, C 355, C 356, C 357 is too low (2.2nF). These capacitors are connected in parallel with the diodes in the secondary-side rectifier. Cure: Change the capacitors C 354, C 355, C 356, C 357 to versions with an electric strength of 50V/22nF. Workshop: Generally check the electric strength of t

25、he capacitors C 354, C 355, C 356, C 357 in above mentioned players and change them if necessary. Stores: None Product Serial No. 5/97 Service Information 54207000, 8002/8012 Central After-Sales Service Audio/HiFi 1/1 RCD 400, UMS 2 Possible complaint: Faulty radio text. Reason: Tolerance limit of t

26、he RDS quartz Q3 is too high. Cure: Replace the RDS quartz by a version available under part number 8382-170-433. Workshop: On request. Stores: Quartz 4.332 MHz, part number 8382-170-433. SERVICE INFORMATION Television No. 1/97Product: 1k CR60206 n.V. T100mA SI60201 LS4148 CD60201 100p CC60203 68 CR

27、60214 F 100p/FKP1/1,6kV C60224 n.V. F 3,9n C60221 CT60213 BC858B CT60203 BC848B 100k R60224 2,2k CR60203 12 34 5 6 TR60220 1k R60201 M LS4148 CD60202 330 R60222 + 10u/50V C60204 4,7k CR60208 F 1,5n C60201 220K CR60223 100 R60213 330 R60221 10n/1000V C60226 S D G BUZ90A T60223 2,7M R60212 BYT53B D610

28、01 2,7M R60211 CT60206 BC858C P ZPD8,2V D60203 + 1u/63V C60202 LS4148 CD60223 n.V. BA159 D60221 BZT03D180 D60222 1N4001 D60208 P 1N4001 D60207 P 4,7 R60207 ZPD13/2% D60202 1k CR60202 7 6 2 1 3 4 5 D60224 BYT54K Bauteile die zustzlich einzubauen oder zu ndern sind. Colour television receivers with Di

29、gi Basic chassis, e.g. ST 70-255 IDTV/LOG, M 70-280 IDTV/LOG, SE 7089 IDTV/LOG Possible complaint: Brown colouration of the circuit board near the diode D 60222 BZT 03D180. Simultaneously the +Eco voltage is approx. 5V too high. Reason: Coincidence of unfavourable component tolerances. Cure: Carry o

30、ut the following changes in the stand-by mains stage: -Change the Z-diode D 60203 from ZPD 9.1V to 8.2V. -Change R 60202 from 68 k to 1 k. -Connect an additional Z-diode ZPD 13 in series with R 60202. Connect the cathode of the diode to the base of the transistor CT 60206. -Check the rating of the r

31、esistor CR 60203 to be 2.2 k. Workshop: Check the +Eco voltage. Carry out the changes if this voltage is higher than +17 V. Stores: Z-diode ZPD 8.2 Vpart no. 8309-720-083 Z-diode ZPD 13 Vpart no. 8309-720-131 SMD resistor 1 kpart no. 8706-100-473 Technical Services / Information TVs with Digi Basic

32、chassis S1/52067S0297 components to be added or changed 8002/8012 Television No.Product: SERVICE INFORMATION TVR 3701 SV2/97 Portable mono TV/VCR combination TVR 3701 SV Possible complaint: Mains voltage dependent chirp audible in stand-by mode. Cure: Fit an additional transistor stage as shown belo

33、w into the power supply unit at IC 7310 (MC 44603 P). Buffer 2 3 4 6 117 Dmax & SOFT-SART CONTROL CURRENT SENSE CURRENT SENSE INPUT Vref UVLO1 OVERVOLTAGE MANAGEMENT THERMAL SHUTDOWN Vref Vcc IC 7310 MC 44603P 2320 2,2 3359 330 1 k BAT 85 4,7 k 100 pF BC 548 B diese Bauteile zustzlich einbauen Works

34、hop: Carry out when complaints are received. Stores: Diode BAT 85part no. 8309-198-085 Technical Services / Information 8002/801252067S0397 fit these components additionally Television No.Product: SERVICE INFORMATION CUC 73013/97 Technical Services / Information 8002/801252097S0497 37 cm colour tele

35、vision receivers with chassis CUC 7301 text e.g.: P 37-730 text Possible complaint: Teletext operation is not possible in “AV” programme position. Reason: The video switch-IC 2807 (TEA 2114) is not fitted in 37 cm television receivers. Cure: Retrofit the following components: IC 2807TEA 2114 C 28151 F C 2810100 F C 28110.1 F CR 2813270 CR 2814270 In addition, change the polarity of 2.2 F electrolytic capacitor C 2816 (negative terminal to pin 8 of IC 2810) and remove bridge BR05