BO-Beolab4_type6650_to_6652-int-sm 电路图 维修手册.pdf

《BO-Beolab4_type6650_to_6652-int-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《BO-Beolab4_type6650_to_6652-int-sm 电路图 维修手册.pdf（30页珍藏版）》请在收音机爱好者资料库上搜索。

1、BeoLab 4 Type 6650, 6652 Service Manual English German, French, Italian, Spanish, Danish, Dutch and Japanese versions are available in the Retail System This Service Manual must be returned with the defective parts/back-up suitcase ! RadioFans.CN 收音机爱 好者资料库 CONTENTS Survey of modules .1.1 How to ser

2、vice . 1.2 Warnings Insulating test . 2.1 Adjustments . 3.1 Repair tips . 4.1 Disassembly . 5.1 Specifi cation guidelines for service use . 6.1 Block diagram .7.1 Wiring diagram . 7.2 Available parts . 8.1 RadioFans.CN 收音机爱 好者资料库 1.1Survey of modules PCB1 Amplifi er PCB2 SMPS PCB3 Filter PCB4 LED PC

3、B5 Switch PCB6 Input Survey of modules 4 5 6 1 2 3 RadioFans.CN 收音机爱 好者资料库 How to service1.2 How to service Front line service BeoLab 4 is to be serviced in the customers home when it comes to electrical symptoms or exchange of mechanical parts. In this way you avoid having to make more than one vis

4、it and using minimum of time on the case, all for the benefi t of the customer. BeoLab 4 has been split-up into as few service items as possible. Each service friendly item is packed individually, prepared for worldwide transport, and has a separate seven digit spare part number to be found in the B

5、ang woofer 6.7 10%). Power Link MK III Disassembly 5.1 - Pull off front covers Remove front cover 5.2 Remove woofer 4x TX20 - Remove screws - Remove cables Cables - Pull off front cover - Remove cables ESD PCB xx ESD-Mat Do not pull - release lock! Remove tweeter 5.3 2x TX20 - Remove screws - Remove

6、 cables Do not pull - release lock! Cables - Pull off front cover - Remove cables ESD PCB xx ESD-Mat 5.4 Replace cabinet 6x TX20 - Remove plug - Remove screws 5.1 Remove front cover 5.2 Remove woofer 5.3 Remove tweeter - Pull off cabinet - Remove plug 1P301 3P612 ESD PCB xx ESD-Mat - Remember to tra

7、nsfer label to new cabinet! Note that this may require some effort Replace port 5.5 - Remove screws - Lift off port as shown 2x 5.4 Remove cabinet 5.6 Replace PCB1, Amplifi er - Gently pull off bracket with PCB1 mounted 2x - Remove screws 5.4 Remove cabinet 5.5 Remove port - Remove screws and pull o

8、ff PCB1 4x ESD PCB xx ESD-Mat Replace PCB2, SMPS 5.7 - Remove screws - Remove plugs 5.4 Remove cabinet - Pull off PCB2 6x 2P1 2P2 ESD PCB xx ESD-Mat 5.8 Replace PCB3, Filter - Remove screws - Remove plugs 5.4 Remove cabinet - Gently pull off PCB1 and PCB3 6x - Pull off PCB1 3P606 2P2 3P610 ESD PCB x

9、x ESD-Mat Replace PCB5, Switch 5.9 - Remove screws 5.4 Remove cabinet 5.5 Remove port 5.8 Remove PCB3, Filter - Pull off as shown (Be aware of the cables!) - Remove plugs 4x 5P602 5P603 - Remove screws 4x ESD PCB xx ESD-Mat 5.10 Replace PCB6, Input - Remove screw 5.4 Remove cabinet 5.5 Remove port 5

10、.8 Remove PCB3, Filter - Remove bracket 1x 5.9 Remove PCB5, Switch 1x ESD PCB xx ESD-Mat Replace bottom plate 5.11 - Remember to transfer label 5.4 Remove cabinet 5.5 Remove port 5.7 Remove PCB2, SMPS 5.9 Remove PCB5, Switch 5.8 Remove PCB3, Filter 5.10 Remove PCB6, Input 5.12 6.1Specification guide

11、lines for service use Specification guidelines for service use BeoLab 4 Type 6650, 6652 Dimensions W x H x D 19.7 x 20.5 x 21.5 cm Weight 1.7 kg Cabinet finish Black, red, blue, dark grey Power consumption Typical: 7 W, Stand-by: 0.5 W Voltage 100-240 V Power amplifier, bass 35 W, Class D, ICEpower

12、Power amplifier, treble 35 W, Class D, ICEpower Effective Frequency range 50 20,000 Hz Crossover frequency 3.3 kHz Cabinet principle Bass reflex Net volume, bass 1.55 litres Magnetically shielded No Woofer 101.6 mm (4”), concave diaphragm 6.7W 10% Tweeter 19 mm (”), fabric dome 5.7W 10% Bass equaliz

13、ation ABL (Adaptive Bass Linearization) Input sensitivity (Power Link) 125 mV (88 dB SPL) Input sensitivity (line) 125 mV (88 dB SPL) - Auto switch on Switch off time (line) 3 min. Indicator LED for on (green) or off (red) Operation Free, Wall or Corner position Left, Right or LINE, PC switch Protec

14、tion Thermal protection of tweeter and SMPS Power Link 1 (use semi-balanced PL cable type MK III, or fully mounted PL cable) Mini-jack (line-in) Via mini-jack plug 0-1 V (Line - automatic on/off) or 0-2 V (PC - always on) selected by switch Accessories Ceiling bracket, type 2177 1217711 (a pair) Flo

15、or stand, type 2178 1217811 (a pair) Wall bracket, type 2179 1217911 (a pair) Cable mini-jack stereo to 2 x mini-jack mono (L and R), 2.5 m 6270250 black Cable RCA/mini-jack mono, 5 m, black 6270273 (a pair) Power Link splitter (one male to two female PL plugs) 6270706 Subject to change without noti

16、ce 7.1 Block diagram Block diagram VR701 VR601 7.2Wiring diagram Wiring diagram 8.1 Available parts Available parts BeoLab 4 9001 9002 9003 9004 9001 9006 9008 9007 9001 9009 9010 9011 9012 9013 9014 1 3 4 5 2 6 Incl. pos. no. 9006 9005 1 1 1 1 1 1 2 2 4 4 3 5 3 3 3 5 5 5 3 3 3 3 3 3 3 3 3 3 7 6 2 A

17、vailable parts 8.2 BeoLab 4 9001 1604244 Front cover, red 1604246 Front cover, black 1604248 Front cover, blue 1604249 Front cover, dark grey 9002 3430049 Cabinet 9003 8480048 Tweeter 9004 8480049 Woofer 9005 6100273 Mains cable, EU 6100329 Mains cable, UK 6100307 Mains cable, US 6100332 Mains cable

18、, AUS 6100386 Mains cable, KOR 6100331 Mains cable, JP 6100047 Mains cable, CHN 9006 3340293 Gasket 9007 3454102 Bottom incl. pos. no. 9006 9008 3390066 Bag w/parts 9009 3358148 Heat zink 9010 3340291 Gasket 9011 3131096 Housing 9012 3340290 Gasket 9013 3458134 Port 9014 3340292 Gasket 1Module 80026

19、19 PCB1, Amplifi er 2Module 8002620 PCB2, SMPS 3Module 8002621 PCB3, Filter 4Module 8002622 PCB4, LED 5Module 8002623 PCB5, Switch 6Module 8002624 PCB6, Input Survey of screws etc. 1 2011006 Screw 4 x 10mm 2 2011008 Screw 4 x 10mm 3 2011009 Screw 3 x 8mm 4 2011013 Screw 2.6 x 8mm 5 2011012 Screw 2.6

20、 x 8mm 6 2011011 Screw 3 x 6mm 7 2011010 Screw 3 x 6mm Wire bundle 6277995 Wire f/speakers Parts not shown 3395297 Back-up suitcase 3375491 Product cover 6270250 Cable mini-jack stereo 6270273 Cable RCA/mini jack 3375590 Autosol chrom polishing Packing 3392894 Packing, complete Available documentati

21、on See Retail Ordering System 8.3 Available parts Floor Stand 2178 1217811 9101 9102 9103 9104 1 2 2 2 2 Incl. pos. nos. 9102, 1 9101 3932011 Tube incl. pos. nos. 9102, 1 9102 2369004 Cable clip 9103 3162238 Cover plate 9104 3103392 Rubber foot 1 2046017 Screw 6 x 16mm 2 3390078 Bag w/parts 3390082

22、Cable manager 3507402 Guide f/2178 3507662 Guide f/cable manager Available parts 8.4 Packing Floor Stand 9301 9301 9302 9303 9301 3396330 Foam packing, set 9302 3016012 Guide f/cover plate 9303 3392486 Outer carton 8.5 Available parts Ceiling bracket 2177 1217711 3507401 Guide Wall bracket 2179 1217911 3507403 Guide Bang & Olufsen DK-7600 Struer Denmark Phone +45 96 84 11 22* Fax +45 97 85 39 11 3538032 12-06 A