Laney_IRT120H_Service_Manual 电路图.pdf
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1、www.laney.co.uk IRT120H Service InformationService Information RadioFans.CN 收音机爱 好者资料库 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 DD CC BB AA 250 V Steelpark Road www.laney.co.uk Industrial Estate West 1 Coombs Wood Halesowen, UK B62 8HD 1 Channel 2 - Main PCB 95053 10/06/2011B.R.F 9505.S
2、chDoc Title: Size:Number: Date: Original File: Revision: SheetofDrawn: A3 Indicates safety critical component Must only be replaced with approved type TL072 U1B 10K SM R26 220N 25V SM C13 1M SM R30 47pF 100V SM C15 KDS226 D9 121 HD4 TO INPUT JACK 100K SM R38 AGND AGND AGND AGND +15V-15V 220pF 50V SM
3、 C23 MMBFJ175 Q2 4K7 SM R59 10u 16V X7R SM C27 100KA6S VR2 10N 50V SM C14 1M SM R37 1uF 25V SM C18 1K5 SM R40 7 6 8 4 5 9 ECC83 V1A AGND AGND AGND DCHTR_1 DCHTR_2 100K 0.5W 350V R18 22uF 450V C4 AGND 2n2 400V C11 150K SM R21 AGND RLY1B MUTE RELAY 220KA6S VR1 AGND 1M SM R31 22uF 50V C19 1K5 SM R41 2
4、1 3 ECC83 V1B AGND AGND AGND 100K 0.5W 350V R13 FP 10K Fusible FP R11 10n 500V C6 220K SM R22 150K SM R32 AGND 100K 0.5W 350V R14 7 6 8 4 5 9 ECC83 V2A 1K5 SM R42 AGND 100K 0.5W 350V R15 150K SM R29 1K5 SM R43 2 1 3 ECC83 V2B AGND 6n8 250V C7 150K SM R34 AGND 2 1 3 ECC83 V3B 150K SM R36 470K SM R46
5、220nF 250V C21 100K 0.5W 350V R47 AGND AGND 47K SM R39 47K SM R48 10nF 400V C24 47K SM R49 470pF 1KV C16 22nF 400V C22 22nF 400V C25 250KB6S VR3A 250KA6S VR4A 25KB6S VR6A AGND AGND 1M Log VR5 AGND 680K SM R52 MMBFJ175 Q1 100N 50V SM C26 CH2_ON TL072 U2A 330K SM R50 22pF 100V SM C17 AGND 10K SM R55 1
6、234567891011112 HD5 TO FX LOOP 9506 HD1 SK1 INPUT 121 HD3 TO MAIN PCB AGND AGND AGND 121 HD7 TO CH1 9504 HD8 AGND 12345678 HD17 TO CH1 9504 HD16 AGND +15V -15V PGND +15V -15V PGND AGND SLAVE_IN VHT3 VHT3 7 6 8 4 5 9 ECC83 V4A 22nF 400V C65 1M SM R120 2 1 3 ECC83 V4B SLAVE_IN 100K SM R116 82K 0.5W 35
7、0V R112 100K 0.5W 350V R113 22uF 450V C61 47pF 1KV C66 100nF 400V C64 100nF 400V C69 220K SM R114 220K SM R118 1A 1KV D21 10K SM R126 470R SM R121 1M SM R122 47N 50V SM C74 4K7 SM R129 ACHTR_2 ACHTR_1 123456 HD18 TO OP PCB 9500 HD1 10uF 100V C67 PGND PGND PGND 4k7 Fusible FP FP R110 100uF 500V C62 P
8、GND AGND 1A 1KV D26 15K SM R125 10uF 250V C79 15K SM R124 39K SM R127 22KH TR1 BIAS ADJUST AGND PGND BIAS_SW1 REMOTE CLEAN BIAS_SW1 SP34 SK6 2*8 OHM SK5 4 OHM SK4 2* 16 OHM SK3 8 OHM SK2 16 OHM Live BrownNeutral - Blue PRIMARY 0V 240V OUTPUT TX SP32 SP33 SP36 AGND AGND 104V SP20 PGND 3.15V 3.15V SP1
9、8BIAS BIAS SP10 SP6 ACHTR_1 ACHTR_2 333V SP16 SP14 1A 1KVD17 4n7 2KVC57 1A 1KVD18 4n7 2KVC59 1A 1KVD20 4n7 2KVC63 1A 1KVD19 4n7 2KVC60 F2 T1A L 250V 100uF 500V C58 SP23 SP22 SP31 SP30 PGND PGND STANDBY SP35 LOUDSPEAKERS 121 HD19 121 HD20 To L/S 9502 HD19 AGND MAINS SWITCHChassis IEC Inlet F1 EARTH +
10、400V 17V 17V SP29 SP26 SP21 PGND 1A 1KVD23 1.6A PTC2 1.6A PTC3 1A 1KVD24 1A 1KVD25 1A 1KVD27 100n 100V C75 1000uF 25V C72 1000uF 25V C76 GND INOUT LM7815 U7 GND INOUT LM7915 U6 1A 1KV D22 1A 1KV D28 PGND 100N 50V SM C70 10u 16V X7R SM C71 100N 50V SM C77 10u 16V X7R SM C78 +15V -15V FP 22R 3W R58 FP
11、 22R 3W R54 DCHTR_1 DCHTR_3 +15V -15V 220KB6SD VR14A AGND 220KB6S VR13 6n8 250V C81 39K 0.5W R128 CH2_BOOST CHANNEL CH1_ON REVERB TUBE PCB 9505 LOUDSPEAKER PCB 9502 INPUT PCB 9503 RLY1C TL072 U1C TL072 U2C 100N 50V SM C95 100N 50V SM C89 100N 50V SM C88 100N 50V SM C90 +15V -15V AGNDAGND + U5G 100N
12、50V SM C87 PGND 10D-20 MAINS FUSE F1= 115V = T5A L 230V = T2A L SP40 P9NT1 CHASSIS PGNDAGND SP39 SRX-YV-25 SRX-YV-25 TL072 U2B TL072 U1A 2n2 400V C1 150K SM R2 100N 50V SM C28 100K SM R57 10K SM R53 2K2 SM R65 BC847B TS2 BC847B TS4 3V9 500mW D14 PGND 10K SM R67 +15V +15V 10K SM R62 +15V BC847B TS1 3
13、3K SM R56 2K2 SM R51 P1 P2 CH2 BOOST LED +15V PGND CH2 BOOST SW CH2_BOOST 121 HD55 AGND 121 HD12 TO CH1 9504 HD13 AGND 121 HD15 TO CH1 9504 HD14 100N 50V SM C5 1M SM R4 AGND 220pF 1KV C2 6n8 250V C3 470K SM R1 VR3C PULL LEAD 10M SM R3 470pF 1KV C9 VR4C PULL DEEP 10M SM R8 100nF 400V C20 10nF 400V C3
14、0 VR6C PULL MID SHIFT 10M SM R17 DCHTR_2 DCHTR_3 7 6 8 4 5 9 ECC83 V3A 150K SM R16 470K SM R19 220nF 250V C31 100K 0.5W 350V R20 AGND AGND 470K SM R10 ACHTR_2 ACHTR_1 VHT3 RLY1A 98 U5D 100K SM R63 P7 P8CH1 ON P3 P4CH2 ON CHANNEL 3V9 500mW D13 2K2 SM R64 1312 U5F 12 U5A 56 U5C 34 U5B 1110 U5E BC847B
15、TS3 4K7 SM R61 4K7 SM R69 +15V +15V 10K SM R66 PGND PGNDPGND 22K SM R60 +15V OPEN FOR CH2 CH2_ON CH1_ON BC847B TS510K SM R68 PGND +15V 1A 1KV D11 100uF 25V C29 CHANNEL PGND 100R SM R130 121 HD56 10K SM R7 10K SM R12AGND 47pF 100V SM C12 1K SM R9 10KA6S VR11 AGND 220KB6SD VR14B 10nF 400V C32 330R SM
16、R25 100nF 400V C36 10nF 400V C34 AGND 220KB6SD VR7A 220KB6SD VR7B 10K SM R24 10K SM R23 100nF 400V C33 100nF 400V C35 FP R28 0R0 22K SM R33 ACHTR_1 ACHTR_2 POWER ACHTR_1 ACHTR_2 SP1 SP2 MMBFJ175 Q102 100N 50V SM C102 100K SM R27 AGND PGND BC847B TS6 +15V 22K SM R35 PGND 47K SM R44 PGND 121 HD1To PCB
17、 9507 (LED Strip) 330R 7W FP R109 121 HD106 TO CH1 9504 HD1 22K SM R187 REMOTE CLEAN 22nF 400V C8 SP3 220KA6S VR10 AG2 121 HD13 TO HD12 AG2 AG2 121 HD14 TO MAIN HD15 2n2 400V C1 2n2 400V C2 150K SM R1 150K SM R2 AG2 2P2W2A12V RLY1B 220KA6S VR1 RHYTHM DRIVE CLEAN VOLUME RLY1C 121 HD1TO MAIN HD106 AG2
18、 220K SM R3 4K7 SM R4 470pF 50V SM C4 AG2 CH 1 PCB 9504 CH 1 PCB 9504 OUTPUT PCB 9500 FP Flame Proof Resistor. Must only be replaced with same type and rating. 100K SM R200 12 HD2 PGND I120H Mains TX Part Numbers: I60H/I60C-212 Mains TX Part Numbers: TX 6231 (120W 240V) shown 240V = 6231 (Brown Prim
19、ary) 230V = 6231 (Red Primary) 120V = 6232 (Brown Primary) 100V = 6232 (Red Primary) 240V = 6233 (Brown Primary) 230V = 6233 (Red Primary) 120V = 6234 (Brown Primary) 100V = 6234 (White Primary) 230V Red Red Black Blue Orange Red Brown Black I20H = 6235 I60H/I60C-212 = 6236 White White Black Blue Bl
20、ue Black Orange Orange Red Red PTC6.0 PTC1 (I120H & I60H ONLY) 3 4 5 8 1 2 7 EL34/6L6 V9 123456 HD1 TO MAIN PCB 1K5 R3 123 HD2 BIAS TEST POINT FP 470R 5W R1 1N4007D4 1R0 3WR5 1N5408 D1 SP1 PGND 3.15V-A 3.15V-B 3 4 5 8 1 2 7 EL34/6L6 V10 1K5 R4 FP 470R 5W R2 1N5408 D2 1N5408 D3 PGND 3 4 5 8 1 2 7 EL3
21、4/6L6 V11 1K5 R7 FP 470R 5W R9 1N4007D5 1R0 3WR6 1N5408 D8 3.15V-A 3.15V-B 3 4 5 8 1 2 7 EL34/6L6 V12 1K5 R8 FP 470R 5W R10 1N5408 D7 1N5408 D6 TP1 TP2 PGND PGND SP2 TO OUTPUT TRANSFORMER 3.15V-A 3.15V-B PGND 3.15V-A 3.15V-B SP3 SP4 HEATER SUPPLY 3.15V-A 3.15V-B FROM MAINS TRANSFORMER SP5 SP6 TO MAI
22、N PREAMP SP7 SP8 TO MAIN PREAMP SP34 TO O/P TX CENTRE TAP 60W Not Fitted CH 2 BOOST CH2 GAIN CH2 BASS CH2 MIDDLE CH2 TREBLE CH2 VOLUME ENHANCE TONE REVERB LEVEL WATTS FP 22R 3W R6 FP 22R 3W R5 BAS16 D101 121 HD8 TO MAIN HD7 AG4 47K SM R75 47K SM R80 10nF 400V C42 AG4 1M Log VR8 AG4 680K SM R84 MMBFJ
23、175 Q3 10N 50V SM C46 PGND TL072 U4A 330K SM R76 22pF 100V SM C32 AG4 100R SM R85 12345678 HD16 TO MAIN HD17 AG4 100K SM R93 +15V -15V PGND TL072 U4B 47K SM R24 470pF 1KV C34 22nF 400V C35 22nF 400V C37 250KB6S VR7A 250KA6S VR9A 250KA 25KB6S VR12A AG4 VR7C PULL LEAD 10M SM R23 470pF 1KV C33 VR9C PUL
24、L DEEP 10M SM R25 100nF 400V C36 10nF 400V C38 VR12B PULL MID SHIFT 10M SM R28 2P2W2A12V RLY1A RHYTHM VOLUME BASS MID TREBLE MMBFJ175 Q1 330K SM R5 100N 50V SM C5 PGND 330K SM R8 BC847B TS147K SM R13 22K SM R11 +15V PGND 10K SM R7 MMBFJ175 Q4 AG4 100N 50V SM C6 PGND MMBFJ175 Q2 100N 50V SM C7 PGND 1
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