Crown_Power_Base-2,_800CSL_Service_Manual电路图.pdf

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1、Power Base-2 the space is considered a character.) The seventh character is usually a hy- phen, though it may be a letter to indicate a revision or special note. The last character is called a check-digit, and is useful to Crown for internal tracking. Crown is in the process of converting to a new p

2、art number system. Length may vary from eight to twelve characters. There is still a letter prefix, then five numbers. These five numbers identify a type of part. The seventh character is a hyphen. Remaining char- acters identify the details of the type of part identified by the first part of the nu

3、mber. STANDARD AND SPECIAL PARTS Many smaller electrical and electronic parts used by Crown are stocked by and available from electronic supply houses. However, some electronic parts that appear to be standard are actually special. A part ordered from Crown will assure an acceptable re- placement. S

4、tructural items such as modules and panels are available from Crown only. ORDERING PARTS When ordering parts, be sure to give the product model, and include a description and part number (CPN/DPN) from the parts listing. Price quotes are available on request. SHIPMENT Shipment will be normally made

5、by UPS or best other method unless you specify otherwise. Shipments are made to and from Elkhart, Indiana USA, only. Estab- lished accounts with Crown will receive shipment freight prepaid and will be billed. All others will receive Crown Parts Department Mailing Address: PO Box 1000 Elkhart, IN USA

6、 46515-1000 Shipping Address: 57620 C.R. 105 Elkhart, IN USA 46517 Phone: (219) 294-8210 or: (219) 294-8211 Toll Free: (800) 342-6939 FAX: (219) 294-8301 Power Base-2 safe with all types of loads, even totally reactive loads. AC Mains: 120VAC at 60 Hz with standard 3 wire grounded 15A connector with

7、 single voltage trans- former and fan for North American units; 100VAC, 120VAC, 220VAC, and 240VAC at 50 or 60 Hz when equipped with universal transformer, applicable fan, and other applicable hardware with country specific power cord. Note that at 50 Hz fan speed is reduced. PERFORMANCE Frequency R

8、esponse: 0.1dB from 20 Hz to 20 kHz at 1 Watt. Phase Response: 10 from 10 Hz to 20 kHz at 1 Watt. Signal to Noise Ratio: Better than 105 dB (A-weighted) below max. average power from 20 Hz to 20 kHz. Total Harmonic Distortion (THD): 0.05% from 20 Hz to 1 kHz, increasing linearly to 0.1% at 20 kHz at

9、 170W. I.M. Distortion: 13V per microsecond. Damping Factor: 1000 from 10 Hz to 400 Hz. DC Offset: 10 millivolts. Input Impedance: Nominally 20K ohms balanced; 10K ohms unbalanced. Output Impedance: 10 milliohms in series with 13V/S. Initial Conditions: Controls per standard. Procedure: Load each ch

10、annel to 8 ohms. Inject a 10 kHz square wave to obtain 40 volts peak-to-peak at each output. Observe the slope of the square wave. It should typically measure 17 to 25 V/S. Also, the square wave must not include overshoot, ringing, or any type of oscillation. TEST 11: CROSSTALK Spec: 33 mVAC at 20 k

11、Hz. Initial Conditions: Controls per standard. Short input of channel not driven. Procedure: 8 ohm load on each channel. Inject a 20 kHz sine wave into the Channel 1 input and increase output level to 46.9 VAC. Measure less than 40 mVAC at the output of Channel 2. Inject a 20 kHz sine wave into the

12、Channel 2 input and increase output level to 46.9 VAC. Measure less than 40 mVAC at the output of Channel 1. TEST 12: OUTPUT POWER Spec at 8 Ohm Stereo: 320W at 0.1% THD. Spec at 4 Ohm Stereo: 400W at 0.1% THD. Initial Conditions: Controls per standard. Procedure: Load each channel to 8 ohms. Inject

13、 a 1 kHz sine wave and measure at least 50.6 VAC at the output of each channel. Load each channel to 4 ohms. Inject a 1 kHz sine wave and measure at least 40.0 VAC. All power measurements must be at less than 0.1% THD. TEST 13: REACTIVE LOADS Spec: No oscillations. Safe with all types of loads. Init

14、ial Conditions: Controls per standard. Power Base-2 either channel controls limiting in Parallel Mono Mode. Initial Conditions: Controls per standard; rag or other obstruction blocking fan so that it does not turn. Procedure: Load the amplifier to 4 ohms on each channel. Inject a 60 Hz sine wave and

15、 adjust for 35 Vrms at the output. After a few minutes observe a wave form similar to Figure 4. Remove the input signal from both channels and allow the amplifier to cool for a few minutes. Switch the amplifier to Parallel Mono and remove the load from Channel 1. Inject the signal into Channel 1 and

16、 observe that ODEP limiting occurs at the output of both channels. Remove the load from Channel 2, and install the load on Channel 1. Again, observe that both channels limit. Return all amplifier controls to standard initial conditions. Remove the fan obstruction. TEST 15: LF PROTECTION Spec: Amplif

17、ier mutes for low frequency. Initial Conditions: Controls per standard. Procedure: No load. Inject a 0.5 Hz 6 volt peak-to-peak square wave into each channel and verify that each channel cycles into mute. TEST 16: SIGNAL TO NOISE RATIO Spec: 100 dB (105 dB A-weighted) below rated 8 ohm power. Initia

18、l Conditions: Controls per standard. Short inputs. Procedure: Load each channel to 8 ohms. Measure less than 400 V at the output of each channel (or 100 dB from reference of +36.25 dBu). TEST 17: TURN ON TRANSIENTS Spec: No dangerous transients. Initial Conditions: Controls per standard. Procedure:

19、From an off condition, turn on the amplifier and monitor the output noise at the time of turn on. Note: Turn on noise may increase significantly if the amplifier is cycled off and on. TEST 18: TURN OFF TRANSIENTS Spec: No dangerous transients. Initial Conditions: Controls per standard. Procedure: Fr

20、om an on condition, turn off the amplifier and monitor the output noise at the time of turn off. Note: Turn off noise may increase significantly if the amplifier is cycled off and on. TEST 19: INTERMODULATION DISTORTION Spec at 0 dB Output: 0.01%. Spec at 35 dB Output: 0.05%. Initial Conditions: Con

21、trols per standard. Procedure: Load each channel to 8 ohms. Inject a SMPTE standard IM signal (60 Hz and 7 kHz sine wave mixed at 4:1 ratio) at 320 Watts (41.0 VAC). With an IM analyzer measure less than 0.01% IMD. Repeat test at 35 dB (reference 320 Watts or 41.0 VAC) and mea- sure less than 0.05%

22、IMD. TEST 20: CLIPPING Spec: No protective action during test. Initial Conditions: Controls per standard. Procedure: Load each channel to 8 ohms. Inject a 1 kHz sine wave at each input and drive output 6 dB into clip for 10 seconds. The amplifier should not activate any protective circuits (ODEP, Fa

23、ult, or LF Protection). Figure 4. ODEP Limiting Wave Form Power Base-2 if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A10265-10001). Power Base-2 if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A10265-10001). Power Base-2 if it is marked with a yell

24、ow dot then R30 should be a 100 Ohm resistor (A10265-10001). Q42871-6 Output Module Parts List (P10305-4 Board) Power Base-2 if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A10265-10001). Power Base-2 if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A

25、10265-10001). Q43015-9 Output Module Parts List (P10341-9 Board) Power Base-2 if it is marked with a yellow dot then R30 should be a 100 Ohm resistor (A10265-10001). Q43203-1 Output Module Parts List (P10397-1 Board) Power Base-2 & 800CSL Amplifier Service Manual 27 Q42665-2 Main Module Parts List (

26、D 6910-0 Board) Q42665-2 Main Module (Original) for PB-2: CAPACITORS C1C 4303-11000uF C2C 3913-8470uF C3C 4303-11000uF C4C 6802-0.47uF C100C200C 5311-322uF C101C201C 2821-410pF C103C203C 6805-3.022uF C104C204C 6805-3.022uF C105C205C 6950-782pF C106C206C 6950-782pF C108C208C 6812-947pF C112C212C 6803

27、-8.12uF C113C213C 6802-0.47uF C114C214C 3729-8100uF 16V C115C215C 3729-8100uF 16V C116C216C 6802-0.47uF C117C217C 6803-8.12uF C118C218C 6812-947pF C122C222C 6811-1100pF C123C223C 6811-1100pF C124C224C 6809-5220pF C125C225C 3729-8100uF 16V C127C227C 3729-8100uF 16V C128C228C 6803-8.12uF C133C233C 681

28、4-512pF C134C234C 6805-3.022uF C135C235C 6805-3.022uF C136C236C 6808-7470pF C137C237C 6808-7470pF C138C238C 6814-512pF C139C239C 6814-512pF C140C240C 6812-947pF C141C241C 6812-947pF C242C 5162-03-12pF Trim DIODES D1C 2851-11N4004 D2C 2851-11N4004 D3C 2851-11N4004 D4C 2851-11N4004 D5C 2851-11N4004 D6

29、C 2851-11N4004 D7C 2851-11N4004 D104D204C 2851-11N4004 D105D205C 2851-11N4004 D106D206C 2851-11N4004 D107D207C 2851-11N4004 D108D208C 3181-21N4148 D109D209C 3181-21N4148 D110D210C 3181-21N4148 D111D211C 5061-41N3070 D112D212C 3181-21N4148 D113D213C 3181-21N4148 D114D214C 3181-21N4148 D115D215C 3181-

30、21N4148 D120D220C 3181-21N4148 D121D221C 3181-21N4148 D122D222C 3181-21N4148 D123D223C 5061-41N3070 NETWORK RESISTORS N100N200D 4669-4Balanced Input Trim N101N201D 6081-0Resistor Network-B N102N202D 6082-8Resistor Network-C TRANSISTORS Q100Q200D 2961-7SEL 2N3859A Q101Q201C 3578-9MPSA93 Q102Q202C 381

31、0-6MPSA43/A42 Q103Q203C 3786-8PN4250A Q104Q204C 3625-82N4125 Q105Q205C 3578-9MPSA93 Q106Q206C 3625-82N4125 Q107Q207C 3786-8PN4250A Q108Q208D 2961-7SEL 2N3859A Q109Q209D 2961-7SEL 2N3859A Q110Q210C 3810-6MPSA43/A42 Q111Q211D 2961-7SEL 2N3859A Q112Q212C 3625-82N4125 Q113Q213C 3625-82N4125 Q115Q215D 29

32、62-5MPS8097 Q116Q216C 3786-8PN4250A Q117Q217D 2961-7SEL 2N3859A Q118Q218D 2961-7SEL 2N3859A Q119Q219C 3625-82N4125 Q120Q220C 3625-82N4125 RESISTORS R1A10265-10031 100K 1% R5A10266-33233.3K 1W R100R200C 6893-95K POT R101R201A10265-49911 4.99K R102R202A10266-10211K R103R203A10265-10031 100K 1% R104R20

33、4A10266-27212.7K R105R205A10266-27212.7K R106R206A10266-123112K R107R207A10266-473147K R108R208A10266-10211K R109R209A10266-820182 OHM R110R210A10266-473147K Power Base-2 & 800CSL Amplifier Service Manual 28 R111R211A10266-123112K R112R212A10266-513151K R113R213A10266-47214.7K R114R214A10266-47214.7

34、K R115R215A10266-5141510K R116R216A10266-33513.3M R117R217A10266-473147K R118R218A10266-2711270 OHM R119R219A10266-3011300 OHM R120R220A10266-2711270 OHM R121R221C 5062-2100K TRIMMER R122R222A10266-2741270K R123R223A10266-123212K .5W R124R224A10266-68216.8K R125R225C 7782-3100 OHM R126R226C 7782-310

35、0 OHM R127R227A10266-68216.8K R128R228A10266-103110K R129R229A10266-1041100K R130R230A10266-1041100K R131R231A10266-103110K R132R232C 5062-2100K TRIMMER R133R233A10266-2741270K R134R234A10266-123212K .5W R135R235C 7782-3100 OHM R136R236A10266-68216.8K R137R237C 7782-3100 OHM R138R238A10266-68216.8K

36、R139R239A10266-10211K R140R240A10266-820182 OHM R141R241A10266-1541150K R142R242A10266-1541150K R146R246A10266-103110K R147R247C 7781-5200 OHM R148R248A10266-27212.7K R149R249C 7781-5200 OHM R150R250A10266-27212.7K R151R251A10266-103110K R152R252A10266-123112K R154R254A10266-1011100 OHM R156R256A102

37、66-13211.3K R157R257A10266-13211.3K R158R258A10266-91219.1K R159R259A10266-103110K R161R261A10266-470147 OHM R162R262A10266-470147 OHM R165R265A10265-53611 5.36K 1% R146R246A10265-53611 5.36K 1% R167R267A10266-10211K R168R268A10265-95301 953 OHM R170R270A10266-10211K R171R271A10265-95301 953 OHM SWI

38、TCHES S3C 6841-84PDT S100C 6781-66P3T ICS U1C 5095-2MC7815 U2C 5096-0MC7915 U100U200C 6911-9UPA75 PNP U103U203C 6910-1UPA76 NPN U104U204C 6900-2MC34084P MISC. BOARDD 6304B2 J1C 7593-45 PIN HEADER J2C 4508-516 PIN SOCKET J9C 7527-26 PIN HEADER J10C 7592-64 PIN HEADER J11C 7077-8WIRE RETAINER J100J200

39、C 6777-4PHONE JACK J500J800D 6619-710 RIBBON ASSY J600J700D 6620-56 RIBBON ASSY MOUNTS U1, U2: (2)C 1889-26-32 NUT (2)C 2176-36-32 X .5 SCREW (2)C 5341-0HEATSINK (2)C 5594-4STAR WASHER MOUNTS U104, U204: (2)C 3450-114 Pin Socket COVERS FOR J100, J200: (2)C 6778-2Cover, Phone Jack Additional Parts (1

40、)C 7077-83-Cond Wire Retain Q42665-2 Main Module Parts List (D 6910-0 Board) Power Base-2 & 800CSL Amplifier Service Manual 29 Q42683-5 Main Module Parts List (D 6910-0 Board) Q42683-5 Main Module (#2) for PB-2: CAPACITORS C1C 3913-8470uF C2C 3913-8470uF C3C 4303-11000uF C4C 6802-0.47uF C100C200C 53

41、11-322uF C101C201C 2820-65pF C103C203C 6805-3.022uF C104C204C 6805-3.022uF C105C205C 6812-947pF C106C206C 6812-947pF C108C208C 6814-512pF C112C212C 6803-8.12uF C113C213C 6802-0.47uF C114C214C 3729-8100uF 16V C115C215C 3729-8100uF 16V C116C216C 6802-0.47uF C117C217C 6803-8.12uF C118C218C 6814-512pF C

42、122C222C 6811-1100pF C123C223C 6812-947pF C124C224C 6812-947pF C125C225C 3729-8100uF 16V C127C227C 3729-8100uF 16V C128C228C 7706-2.1uF C130C 6814-512pF C133C233C 6814-512pF C134C234C 6805-3.022uF C135C235C 6805-3.022uF C136C236C 6808-7470pF C137C237C 6808-7470pF C138C238C 6814-512pF C139C239C 6814-

43、512pF C140C240C 6812-947pF C141C241C 6812-947pF C242C 5162-03-12pF Trim C144C244C 5362-62.2uF C145C245C 6814-512pF C146C246C 6809-5220pF C147C247C 6806-1.01uF C148C248C 6810-3180pF C149C249C 6808-7470pF C152C252C 6809-5220pF C153C253C 5362-62.2uF DIODES D1C 2851-11N4004 D2C 2851-11N4004 D3C 2851-11N

44、4004 D4C 2851-11N4004 D5C 2851-11N4004 D6C 2851-11N4004 D7C 2851-11N4004 D104D204C 2851-11N4004 D105D205C 2851-11N4004 D106D206C 2851-11N4004 D107D207C 2851-11N4004 D108D208C 3181-21N4148 D109D209C 3181-21N4148 D110D210C 3181-21N4148 D111D211C 5061-41N3070 D112D212C 3181-21N4148 D113D213C 3181-21N41

45、48 D114D214C 3181-21N4148 D115D215C 3181-21N4148 D120D220C 3181-21N4148 D121D221C 3181-21N4148 D122D222C 3181-21N4148 D123D223C 5061-41N3070 NETWORK RESISTORS N100N200D 4669-4Balanced Input Trim N101N201D 6081-0Resistor Network-B N102N202D 6082-8Resistor Network-C TRANSISTORS Q100Q200D 2961-7SEL 2N3

46、859A Q101Q201C 3578-9MPSA93 Q102Q202C 3810-6MPSA43/A42 Q103Q203C 3786-8PN4250A Q104Q204C 3625-82N4125 Q105Q205C 3578-9MPSA93 Q106Q206C 3625-82N4125 Q107Q207C 3786-8PN4250A Q108Q208D 2961-7SEL 2N3859A Q109Q209D 2961-7SEL 2N3859A Q110Q210C 3810-6MPSA43/A42 Q111Q211D 2961-7SEL 2N3859A Q112Q212C 3625-82

47、N4125 Q113Q213C 3625-82N4125 Q115Q215D 2962-5MPS8097 Q116Q216C 3786-8PN4250A Q117Q217D 2961-7SEL 2N3859A Q118Q218D 2961-7SEL 2N3859A Q119Q219C 3625-82N4125 Q120Q220C 3625-82N4125 Q121Q221C 3786-8PN4250A RESISTORS R1A10265-53621 53.6K 1% R4A10265-46421 46.4K 1% R5A10266-33233.3K 1W Power Base-2 & 800

48、CSL Amplifier Service Manual 30 R100R200C 7409-35K POT R101R201A10265-49911 4.99K R102R202A10266-10211K R103R203A10265-10031 100K 1% R104R204A10266-27212.7K R105R205A10266-27212.7K R106R206A10266-123112K R107R207A10266-683168K R108R208A10266-10211K R109R209A10266-820182 OHM R110R210A10266-683168K R1

49、11R211A10266-123112K R112R212A10266-513151K R113R213A10266-47214.7K R114R214A10266-47214.7K R115R215A10266-5141510K R116R216A10266-33513.3M R117R217A10266-473147K R118R218A10266-2711270 OHM R119R219A10266-3011300 OHM R120R220A10266-2711270 OHM R121R221C 5062-2100K TRIMMER R122R222A10266-2741270K R123R223A10266-123212K .5W R124R224A10266-68216.8K R125R225C 7782-3100 OHM R126R226C 7782-3100 OHM R127R227A10266-68216.8K R128R228A10266-103110K R129R229A10266-1041100K R130R230A10266-1041100K R131R231A10266-103110K R132R232C 5062-2100K TRIMMER R133R233A10266-2741270K R134R234A10266-12