InterM-L1800-pwr-sm维修电路原理图.pdf
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1、SERVICE MANUAL L-800/1400/1800/2400L-800/1400/1800/2400 RadioFans.CN 收音机爱 好者资料库 CONTENTS CONTENTS Electrical Adjustment Procedure Specifications Electrica Parts List Top and Bottom View of P.C.Board . Block Diagram Wiring Diagram Schematic Diagram . Exploded View of Cabinet & Chassis / Mechanical Pa
2、rts List. Assy Drawing . RadioFans.CN 收音机爱 好者资料库 REQUIRED TEST EQUIPMENT 1. Oscilloscope 2. 1kHz audio sine wave generator 3. Digital multimeter 4. 2-ohm resistive load (rated for at least 1200W) IDLE CURRENT(L-800/1400) 1. Setting set the master volume controls minimum 2. Connection 3. Adjustment W
3、 h i l e me a s u r i n g t h e DC v o l t a g e a c r o s s r e s i s t o r R 130 a n d R 230 a d j u s t VR 100 a n d VR 200, r a n g e a s s h o w n b e l o w . M o d e l L -8 00 L -1400 CURRENT LIMITS(L-800/1400) 1. Setting Channel 1 input : Set the 1kHz sine generator connect Channel 1 output :
4、 Connect a 2-ohm load and the oscilloscope probe across 2. Adjustment Turn the volume control back up until the output clips. The voltage at which the signal stars to clip should fall within the range shown below M o d e l L -8 00 L -1400 * R e p e a t s t e p s 1 t h r o u g h 2 f o r Ch a n n e l
5、2 140mV 18 0mVCh a n n e l 1 : DC v o l t a g e a c r o s s R 130( 6. 8 / 1W ) , a d j u s t VR 100 120mV 160mVCh a n n e l 2 : DC v o l t a g e a c r o s s R 230( 6. 8 / 1W ) , a d j u s t VR 200 DC v o l t a g e r a n g eA d j u s t 27V 31V 34V 38 V A d j u s t Ch a n n e l 1 : A d j u s t VR 101
6、& VR 102 f o r s y mme t r y Ch a n n e l 2 : A d j u s t VR 201 & VR 202 f o r s y mme t r y Cl i p p i n g v o l t a g e r a n g e ( 2-o h m) REQUIRED TEST EQUIPMENT 1. Oscilloscope 2. 1kHz audio sine wave generator 3. Digital multimeter 4. 2-ohm resistive load (rated for at least 1200W) IDLE CURR
7、ENT(L-1800/2400) 1. Setting set the master volume controls minimum 2. Connection 3. Adjustment W h i l e me a s u r i n g t h e DC v o l t a g e a c r o s s r e s i s t o r R 134 a n d R 234 a d j u s t VR 100 a n d VR 200, r a n g e a s s h o w n b e l o w . M o d e l L -18 00 L -2400 CURRENT LIMIT
8、S(L-1800/2400) 1. Setting Channel 1 input : Set the 1kHz sine generator connect Channel 1 output : Connect a 2-ohm load and the oscilloscope probe across 2. Adjustment Turn the volume control back up until the output clips. The voltage at which the signal stars to clip should fall within the range s
9、hown below M o d e l L -18 00 L -2400 * R e p e a t s t e p s 1 t h r o u g h 2 f o r Ch a n n e l 2 DC v o l t a g e r a n g eA d j u s t 70mV 110mVCh a n n e l 1 : DC v o l t a g e a c r o s s R 134( 3. 3 / 1W ) , a d j u s t VR 100 60mV 100mVCh a n n e l 2 : DC v o l t a g e a c r o s s R 234( 3.
10、 3 / 1W ) , a d j u s t VR 200 46V 50VCh a n n e l 2 : A d j u s t VR 201 & VR 202 f o r s y mme t r y Cl i p p i n g v o l t a g e r a n g e ( 2-o h m)A d j u s t 41V 45VCh a n n e l 1 : A d j u s t VR 101 & VR 102 f o r s y mme t r y S p e c i f i c a t i o n S p e c i f i c a t i o n L-800L-1400L
11、-1800L-2400 Power Output Level STEREO RL=8 200W280W360W500W RL=4 300W450W600W750W RL=2 430W700W900W1200W BRIDGED RL=8 600W900W1200W1500W RL=4 800W1400W1800W2400W Frequency Response RL=8 , P.=1W THD+N f=20Hz20kHz, Half Power(L-800/1400) 1/10Power(L-1800/2400) STEREO RL=8 & 4 BRIDGED RL=8 Channel Sepa
12、ration Half Power RL=8 , f=1kHz, ATT. max. Input 600 shunt Residual Noise (DIN Audio Filter) Signal-to-Noise Ratio DIN Audio, Input 600 Shunt Input Sensitivity (Rated Power into 4 1kHz)2.7dBu2.7dBu3.5dBu3.5dBu Damping Factor RL=8 , f=1kHz Voltage Gain (ATT max.) 4 1kHz30dB32dB33dB34dB Output Circuit
13、ryAB ClassAB ClassH Class H Class Input Impedance (ATT max.) Indicators Fan Circuit Power Source Power Consumption(1/8 POWER) 3A3.5A4A4.5A Weight 14Kg14.4Kg15Kg15.6Kg Appearance 0dB=0.775 Vrms, Half Power=1/2 Power Output Level (Rated Power) This specification and performance might change without a
14、prior notice depending on the companys situations. Low-Speed - Variable - Hi-Speed AC 220V, 60Hz 482(W) x 88(H) x 369(D)mm Connector Input XLR-3-31 type + 1/4”Phone (balanced), XLR Output 5-Way binding posts2, Speakon Terminal2 Mode SelectorYellow Protection Power SW ON/OFF muting, Full short circui
15、t Thermal protection, RF protection SignalGreen ProtectionRed PowerBlue Clip / LimiterRed -85dB: ATT min. 100dB 400 20k (Balance/Unbalance) 20Hz20kHz : 0/1dB, -3dB : 5Hz70kHz 0.03% 0.03% 80dB R EFI TEM _ N ODEFI N EVA L U ER EFI TEM _ N ODEFI N EVA L U E BD4002058 100500 DI ODE BR I DG E G BPC-W 250
16、4G BPC2504 BD4022058 100500 DI ODE BR I DG E G BPC-W 2504G BPC2504 BD404S 22201500009 DI ODE BR I DG E DBS 105GDBS 105G C100S 351018 15331 CA P CE C 18 0PF 50V 08 05( 2012)18 0P C10134098 47021-T CA P A F N P 47U F 10V47/ 10 N P C102S 351018 15331 CA P CE C 18 0PF 50V 08 05( 2012)18 0P C103S 3510104
17、4344 CA P CE0. 1U F 50V J ( 3216)0. 1/ 50( 3216) C104S 35101044344 CA P CE0. 1U F 50V J ( 3216)0. 1/ 50( 3216) C1053409210141-T CA P A F R S G 100U F 25V 6 P100/ 25 C106S 35101044344 CA P CE0. 1U F 50V J ( 3216)0. 1/ 50( 3216) C1073609224122-T CA P M A 0. 22U F 100V J M I N I0. 22/ 100( M ) C1083609
18、154122-T CA P M A 0. 15U F 100V M I N I0. 15/ 100( M ) C1093609154122-T CA P M A 0. 15U F 100V M I N I0. 15/ 100( M ) C110S 35105604331 CA P CE C 56PF 50V J 08 05( 2012)56P C1113409222171-T CA P A F R S G 220U F 50V S G 10 P220/ 50 C112S 35105604331 CA P CE C 56PF 50V J 08 05( 2012)56P C113340922217
19、1-T CA P A F R S G 220U F 50V S G 10 P220/ 50 C1143609223120-T CA P M A 0. 022U F 100V J0. 022/ 100( M ) C115S 35102224344 CA P CE2200PF 50V J ( 3216)2200PF( 3216) C1163609332120-T CA P M A 0. 0033U F 100V0. 0033/ 100( M ) C1173609332120-T CA P M A 0. 0033U F 100V0. 0033/ 100( M ) C1183609223120-T C
20、A P M A 0. 022U F 100V J0. 022/ 100( M ) C1193409247255 CA P L P472Z08 00400 4700U F 8 0V4700/ 8 0 C1213409247255 CA P L P472Z08 00400 4700U F 8 0V4700/ 8 0 C123360968 3153-T CA P TL 0. 068 U F 250V( S A M W HA )0. 068 / 250( M ) C1253409247044-T CA P R G 47U F 25V47/ 25 C1263609102120-T CA P M A 0.
21、 001U F 100V0. 001/ 100 C200S 351018 15331 CA P CE C 18 0PF 50V 08 05( 2012)18 0P C20134098 47021-T CA P A F N P 47U F 10V47/ 10 N P C202S 351018 15331 CA P CE C 18 0PF 50V 08 05( 2012)18 0P C2053409210141-T CA P A F R S G 100U F 25V 6 P100/ 25 C206S 35101044344 CA P CE0. 1U F 50V J ( 3216)0. 1/ 50(
22、 3216) C2073609224122-T CA P M A 0. 22U F 100V J M I N I0. 22/ 100( M ) C2083609154122-T CA P M A 0. 15U F 100V M I N I0. 15/ 100( M ) C2093609154122-T CA P M A 0. 15U F 100V M I N I0. 15/ 100( M ) C210S 35105604331 CA P CE C 56PF 50V J 08 05( 2012)56P C2113409222171-T CA P A F R S G 220U F 50V S G
23、10 P220/ 50 C212S 35105604331 CA P CE C 56PF 50V J 08 05( 2012)56P C2133409222171-T CA P A F R S G 220U F 50V S G 10 P220/ 50 C2143609223120-T CA P M A 0. 022U F 100V J0. 022/ 100( M ) C215S 35102224344 CA P CE2200PF 50V J ( 3216)2200PF( 3216) C2163609332120-T CA P M A 0. 0033U F 100V0. 0033/ 100( M
24、 ) C2173609332120-T CA P M A 0. 0033U F 100V0. 0033/ 100( M ) C2183609223120-T CA P M A 0. 022U F 100V J0. 022/ 100( M ) C2193409247255 CA P L P472Z08 00400 4700U F 8 0V4700/ 8 0 C2213409247255 CA P L P472Z08 00400 4700U F 8 0V4700/ 8 0 C223360968 3153-T CA P TL 0. 068 U F 250V( S A M W HA )0. 068 /
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