Alesis LRP4 User manual

SPECIFICATIONS
SERVICE MANUAL
MODEL: LRP4
FEATURES
Compatible with iPod Classics, 5th-Generation iPods, 2nd- and 3rd –Generation
iPod nanos, and iPod nano-chromatics *
44.1kHz, 16-bit Recording Capability
2 Built-In Condenser Microphones for Stereo Recording
2 Combo Mic / Line Inputs – Connect 1 stereo or 2 mono sound sources such as XLR or 1/4” microphones and other line sources
Analog Input Limiter – Prevents hard digital “clipping” of the recorded signal in your iPod
Direct Monitoring – Monitor your recording with zero latency
Headphone output with dedicated volume control
Switchable 48V Phantom Power for Microphones
External Power Supply (AC Adapter) or Battery Power (4 AAA)
TECHNICAL SPECIFICATIONS
ANALOG INPUTS
Gain
Internal Mic Inputs: +6dB to 49.3dB
External Inputs (XLR): +6dB to 49.3dB
External Inputs (1/4”): -11.3dB to +32dB
THD+N
2nd & 3rd Gen. iPod nano: 0.01% @ 92dB SNR A-weighted (charge off, min. gain)
5th Gen. iPod / iPod Classic: 0.014% @ 88dB SNR A-weighted (charge off, min. gain)
DIGITAL CIRCUITRY
Bit Depth 16-bit
Sample Rates 44.1kHz (high); 22.05kHz (low)
MAIN OUTPUTS
Max Level +0.3dBu Maximum
THD+N < 0.01% @ 1kHz
HEADPHONE OUTPUTS
Max Level 75

output impedance, 40mW into 32

BATTERY LIFE
Without phantom power > 3 hours
Using phantom power > 2 hours
EXTERNAL BATTERY PACK REQUIREMENTS *
6V DC 1A
2mm diameter (center pin); 5.5mm outside diameter
Wired as center positive

DISASSEMBLY PROCEDURES
1. DISASSEMBLE THE BOTTOM COVER.
(A) AFTER PICKING OFF THE RUBBER FOOT PAD, AND TAKES OUT 1 PCS SCREW FROM THE BOTTOM COVER.
(B) AFTER PICKING OFF THE BATTERY COVER, AND TAKES OUT 2PCS SCREW FROM THE BOTTOM COVER.
(C) REMOVE 1 PCS SCREW FROM THE BOTTOM COVER.
(Fig1)
2. DISASSEMBLE THE XLR PCB.
(A) REMOVE 2 PCS SCREW FROM THE BOTTOM COVER.
(Fig2)

3. DISASSEMBLE THE MAIN PCB.
(A)REMOVE 3 PCS SCREW FROM THE MAIN PCB.
(Fig3)
4. DISASSEMBLE THE DOCK PCB.
(A) REMOVE 2 PCS SCREW FROM THE iPOD CONNECTOR BASE.
(B) REMOVE 2 PCS SCREW FROM THE PCB CLANP.
(Fig4)

5. DISASSEMBLE THE METER PCB.
(A) REMOVE 4 PCS SCREW FROM THE METER PCB.
(Fig5)
6. DISASSEMBLE THE KNOB CAP.
(A) AFTER PICKING OFF THE KNOB CAP AND REMOVE 2 PCS FROM THE KNOB.
(Fig6)

7. DISASSEMBLE THE MICROPHONE.
(A)REMOVE MICROPHONE HOLDER FROM THE MIC CAPSOULE.
(Fig7)

WIRING DIAGRAM
(US/EU/UK/JIS/AUS NZ)

EXPLODE DIAGRAM
(US/EU/UK/JIS/AUS NZ)
EQUENCIAL NO EXPLODE DIAGRAM WILL BE MARKED ON REF.COLUMM OF BOM LIST

PACKING DIAGRAM
(US/EU/UK/JIS/AUS NZ)

LRP4ALE01 BOM
    
LEVEL
P/N DESCRIPTION QTY REF
1 BA70978-130 BATTERY CONTACTER(+) 1 37
1 BA70979-130 BATTERY CONTACTER(-) 1 36
1 BA70980-130 BATTERY CONTACTER(+/-) 2 34
1 BA70980-160 BATTERY CONTACTER(-/+) 1 35
1 EVA1304438 Sponge 38X15X T3 1 39
1 EVA1304441 EVA 1
1 EVA1304442 EVA 1
1 EVA1304444 MIC SPONGE 1 50
1 LAC22ALE68 LRP4_017-01 Rubber Foot 1 49
1 LAC42ALE91 STICKER LABEL 1
1 LAC42ALE93 SAFETY LABEL 1 48
1 LAC67YAH259 LABEL 3
1 LAC67YAH261 STICKER 8MM GREEN 1
1 MT1301818 GROUND FOIL 2
1 MT13044120 Kensington Plate 1 21
1 MT13044121 LRP4_016-01 Mic rophone Guard 1 22
1 MT13044125 HOLD PLATE R 1 24
1 MT13044126 HOLD PLATE L 1 23
1 PLRP4ALE01 PACK ASS'Y 1
2 AA419829J POLY BAG(O/M A-4)-2 1
2 AL7-51-0154-H SAFTY & WARRENTY MANUAL 1
2 AL7-91-1002 GEL SILICA 1
2 CGLRP4310ALE01 Gift box 1
2 CTLRP4513ALE01 Out carton 0.25
2 OPLRP4ALE01 Quick start manual 1
2 PE111580BO POLYBAG 3
2 PLLRP401 poly foam R 1
2 PLLRP402 poly foam L 1
2 SD20010000 Soft Bag 1
1 PT1304320 iPOD Cover Release Cap (POM) 1 20
1 PT1304321 iPOD sled Release plunger(POM) 1 19
1 PT130444801 LRP4_003-01 iPOD Mounting Sled 1 3
2 PT1304448 LRP4_003-01 iPOD Mounting Sled 1
3 PMPC-122 PM 0.03
1 PT130444901 LRP4_006-01 iPOD Mounting Sled 1 2
2 PT1304449 LRP4_006-01 iPOD Mounting Sled 1
3 PMPC-122 PM 0.03
1 PT1304450 LRP4_005-01 iPOD connector bas 1 11
1 PT1304454 PCB CLANP 1 13
1 PT1304476 PORTECT FILM 1 51
1 PT131040501 LRP4_015-01 Meter Lens 1 46
2 PT1310405 LRP4_015-01 Meter Lens 1

1 PT1310610601 LRP4_009-01 REC/ENTER Button 1 4
2 PT13106106 LRP4_009-01 REC/ENTER Button 1
1 PT1310610701 LRP4_009-01 REC/ENTER Button 1 5
2 PT13106107 LRP4_009-01 REC/ENTER Button 1
1 PT1310610801 KNOB CAP PLATING 2 6
2 PT13106108 KNOB CAP 2
1 PT1310610901 KNOB BASE PLATING 2 8
2 PT13106109 KNOB BASE 2
1 PT13106110 LRP4 Slide Switch Cap 5 17
1 PT133010601 LRP4_Top Housing 1 1
2 PT1330106 LRP4_Top Housing 1
3 PM3373MB COLOR RESIN 0
3 PM5712FNC1 PM 0.05
1 PT133010701 LRP4_004-01 Battery Cover 1 40
2 PT1330107 LRP4_004-01 Battery Cover 1
3 PM3373MB COLOR RESIN 0
3 PM5712FNC1 PM 0.03
1 PT133031501 LRP4_002-01 Bttom Housing 1 31
2 PT1330315 LRP4_002-01 Bttom Housing 1
3 MT13044119 INSERT SCREW 1
3 PM3373MB COLOR RESIN 0
3 PM5712FNC1 PM 0.06
1 RU1330703 LRP4_017-01 Rubber Foot 1 32
1 RU1504306 RUBBER MAT 2 38
1 SC0204PBNI SCREW 7 10
1 SC1404IINI SCREW 2 7
1 SC2606RBNI SCREW 2 15
1 SP1304406 Spring of release plunger 1 18
1 SPSA11930606W2 ADAPTOR 1
2 MT13044122 Fine Metal Screen 2 29
2 PT130431901 LRP4_008-01 Microphone Cap 2 27
2 PT1304475 Mic Holder 2 30
1 WS106002108M NYLON WASHER 7 42
1 TWPC08A02001 MAIN PCB ASS'Y 1
2
AL9-79-045401 Main PCB ASS'Y 1
3
AA822519X IC LP2985IM5-3.3 1 U8
3
AA822748X DIODE BAV99 8 D2~5,17~20
3
AL1-08-0222 E.CAP 22UF/16V(MINI) 1 C7
3
AL1-60-7153 ECAP LOW ESR 150uF/25V SMD-F 1 C27
3
AL1-60-7332 CAP 33uF ELEC 63V LOW-ESR SMD- 1 C13
3
AL1-60-7473 ECAP LOW ESR 470uF/16V SMD-F 2 C12,22
3
AL2-49-0070 DIODE BAV70 1 D1
3
AL2-51-0140 DIODE POWER SCHOTTKY MBRS140LT 5 D6,7,14~16
3
AL2-51-4401 TRANS NPN 2N4401 40V 1A SOT-23 3 Q2,3,7

3
AL2-51-4403 TRANS PNP 2N4403 40V 800mA SOT 1 Q5
3
AL2-54-0138 TRANS SMALL-SIGNAL N-CHAN EN-M 1 Q8
3
AL2-54-2114 TRANSIST0R 2SD2114K 2 Q9,10
3
AL2-54-6306 TRANSIST0R FDC6306P 1 Q6
3
AL2-82-0008 IC APPLE IPOD MCU QFN-20 1 U5
3
AL7-01-0039 RESONATOR 8MHZ CERAMIC 1 X1
3
AL9-61-0194 PROGRAM IC (BLANK ICPIC18F44J1 1 U7
4
ICPIC18F44J10 IC MCU PIC18F44J10 8-BIT RISC 1 (U7)
3
CN0100000508 GND WIRE 1PIN 50mm 1 (GND)
3
CS102J5003NPO CCAP SMD 1nF/50V 5% 0603 NPO 4 C23,70,76,80
3
CS103K5003X7R CCAP SMD 0.01uF/50V 10% 0603 X 2 C47,81
3
CS104K5003X7R CCAP SMD 0.1uF/50V 10% 0603 X7 11 C14,15,19,32,35,36,42,56,59,60,66
3
CS105K1603X7R CCAP SMD 1uF/16V 10% 0603 X7R 19 C5,8,10,11,16,24,31,33,37,38,43,45,61
C63,69,71,73,82,83
3
CS180J5003NPO CCAP SMD 18pF/50V 5% 0603 NPO 3 C17,62,72
3
CS221J5003NPO CCAP SMD 220pF/50V 5% 0603 NPO 1 C26
3
CS222J5003NPO CAP 2200P 50V 5% 0603 1 C20
3
CS223K5003X7R CCAP SMD 0.022uF/50V 10% 0603 2 C1,4
3
CS225K1605X7R CCAP SMD 2.2uF/16V 10% 0805 X7 2 C74,78
3
CS471J5003NPO CCAP SMD 470pF/50V 5% 0603 NPO 4 C9,18,51,52
3
CS475K1605X5R CCAP SMD 4.7uF/16V 10% 0805 X5 24 C6,21,25,28,29,34,39~41,46,48~50,53
C54,57,58,64,65,67,68,75,77,79
3
DIENBAW56LT1SM DUAL SWITCHING DIODE 1 D13
3
FCN2R1001801 FCN Dual Touch 90°PITCH=1.0m 1 J7
3
FCN2S1001001 FCN Dual Touch 180°Pitch=1.0 2 J1,4
3
FCN2S1001201 FCN Dual Touch 180°Pitch=1.0 1 J5
3
IC1510SO8-U IC OPAMP SINGLE THAT1510 SOP-8 2 U1,2
3
ICLM27313XMF IC REG VOLTAGE LM27313 ADJ SWI 1 U4
3
ICLM3578A I.C. 1 U3
3
ICNJM2387 IC 1 U10
3
ICNJM2737M IC(OP AMP) 1 U11
3
ICTL072CPWR IC TL072CPWR TSSOP-8 1 U9
3
ICTL074CPWR IC TL074CPWR TSSOP-14 1 U6
3
ICTPA4411RTJ IC STEREO HEADPHONE DRIVER 80m 1 U12
3
JKDJ-0702B-020 DC BASE 2.0MM 1 J9
3
OTRV102F30A100K POT 100KA DUAL THUMB-WHEEL 14m 1 VR1
3
RS000010F03 RES 0

1% SMD 0603 1 D12 (Pin4.Pin5)
3
RS000110J03 RES 1

5% SMD 0603 4 R29~31,106
3
RS00018J05 RES 0

5% SMD 0805 2 R80,96
3
RS01K510F03 RES 1.5K 1% SMD 0603 2 R5,6
3
RS024010F03 RES 240

1% SMD 0603 2 R48,52
3
RS05K610F03 RES 5.6K 1% SMD 0603 1 R86
3
RS10010F03 RES 10

1% SMD 0603 1 R64
3
RS10110F03 RES 100

1% SMD 0603 5 R1,28,33,120,127
3
RS10210F03 RES 1K 1% SMD 0603 13 R10,13,20,25,70,72,108,110~113,131~132

3
RS10310F03 RES 10K 1% SMD 0603 15 R21,40,41,43,45,51,55,57,94,103,104
R116,119,121,129
3
RS10410F03 RES 100K 1% SMD 0603 14 R9,24,32,69,71,81,95,107,109,114,117
R123,124,134
3
RS113K10F03 RES 113K 1% SMD 0603 1 R35
3
RS13K310F03 RES 13.3K 1% SMD 0603 2 R34,77
3
RS15310F03 RES 15K 1% SMD 0603 1 R66
3
RS15416F03 RES 150K 1% SMD 0603 2 R60,62
3
RS1K6910F03 RES 1.69K 1% SMD 0603 1 R65
3
RS210K10F03 RES 210K 1% SMD 0603 1 R89
3
RS24K910F03 RES 24.9K 1% SMD 0603 2 R46,54
3
RS27K410F03 RES 27.4K 1% SMD 0603 2 R115,118
3
RS2K2110F03 RES 2.21K 1% SMD 0603 1 R8
3
RS301K10F03 RES 301K 1% SMD 0603 1 R88
3
RS332K10F03 RES 332K 1% SMD 0603 2 R97,126
3
RS33R210F03 RES 33.2 1% SMD 0603 2 R14,23
3
RS34K810F03 RES 34.8K 1% 1/10W SMD 0603 1 R59
3
RS37K410F03 RES 37.4K 1% SMD 0603 4 R101,102,125,128
3
RS3K0110F03 RES 3K01 1/10W SMD 1/10W 0603 1 R105
3
RS47310J03 RES 47K 5% SMD 0603 7 R3,4,12,16,19,63,130
3
RS475K10F03 RES 475K 1% SMD 0603 1 R22
3
RS49K910F03 RES 49.9K 1% SMD 0603 12 R17,18,26,27,36,39,56,58,67,74,75,79
3
RS4K0210F03 RES 4K02 1% SMD 0603 4 R82~85
3
RS4K7510F03 RES 4.75K 1% SMD 0603 2 R76,78
3
RS4K9910F03 RES 4.99K 1% SMD 0603 3 R49,98,122
3
RS51110J03 RES 510

5% SMD 0603 6 R38,42,44,47,53,61
3
RS5K4910F03 RES 5.49K 1% SMD 0603 4 R90~93
3
RS62110F03 RES 620

1% SMD 0603 2 R37,50
3
RS6K8110F03 RES 6.81K 1% SMD 0603 2 R2,11
3
RS8K2510F03 RES 8.25K 1% SMD 0603 2 R7,15
3
SWEG2211 SWITCH SLIDE DPDT DIP 5 SW1~5
3
TE612000202 TERMINAL 2P 2.0 180° 3 J2,3,8
3
TE612000301 Pin Header 180°Pitch:2.00mm 1 J10
3
TRBC847BS TRANS Dual-NPN BC847BS SOT-363 4 Q90,91,98,99
3
TRBSS84 TRANS SMALL P-CHAN EN-MOSFET B 2 Q1,4
3
UHBRI4D15-220M INDUCTOR 22uH 20% 0.65A 0.692 1 L3
3
UHCP201209T FB 3 L2,4,5
3
UHFS4W1010-331K CAPACITOR 330UH 1 L1
2
AL9-79-0498 XLR PCB ASS'Y 1
3
CN0320000504 Flat Cable 3Pin Pitch 2.0mm Si 1 J4
3
CS102J5003NPO CCAP SMD 1nF/50V 5% 0603 NPO 4 C13,16,19,22
3
CS221J5003NPO CCAP SMD 220pF/50V 5% 0603 NPO 2 C6,7
3
CS475K1605X5R CCAP SMD 4.7uF/16V 10% 0805 X5 4 C11,12,18,21
3
ECS22663D CAP 22uF ELEC 63V LOW-ESR SMD- 5 C1~5

3
FCN2R1001001 FCN Dual Touch 90°Pitch=1.0m 1 J18
3
JK3JY353001030 JACK 3.5mm 3-PIN FEM PCB MNT 9 1 J2
3
JKA03M8007PS1YH JACK XLR 3-PIN FEM STEREO-COMB 2 J1,3
3
RS01K510F03 RES 1.5K 1% SMD 0603 4 R5,6,11,12
3
RS10010F03 RES 10

1% SMD 0603 2 R1,2
3
RS6K8103F10 RES 6.81K 1% SMD 1210 4 R7~10
3
RS9K5310F03 RES 9.53K 1% SMD 0603 4 R3,4,14,15
3
TE812000311 TERMINAL(3P) 1 (J4)
3
UHCP201209T FB 8 L1~8
1
AL9-79-0497 Dock PCB ASS'Y 1
2
AL9-40-0497 Dock PCB 2Layer FR-4 0.6T 40.5 1 -
2
FCN1S10018002 18P CONNECTOR 1 J4
2
JK0514S0084 iPOD Connector 1 J2
2
RS075K10F03 RES 75K 1% SMD 0603 2 R3,5
2
RS49K910F03 RES 49.9K 1% SMD 0603 2 R1,4
2
RS549K10F03 RES 549K 1% SMD 0603 1 R2
1
AL9-79-0499 METER PCB ASS'Y 1
2
AL9-40-0499 METER PCB 2 Layer FR-4 1.0T 57 1 -
2
CS104K5003X7R CCAP SMD 0.1uF/50V 10% 0603 X7 2 C1,2
2
FCN2S1001001 FCN Dual Touch 180°Pitch=1.0 1 J2
2
FCN2S1001201 FCN Dual Touch 180°Pitch=1.0 1 J1
2
LDLTST-C190KGKT LED GREEN NON-DIFFUSED LTST-C1 6 D1~3,6~8
2
LDLTST-C190KRKT LED 2 D5,10
2
LDLTST-C190KSKT LIQUID-EMITTING DIODE AMBER SM 2 D4,9
2
RS47310J03 RES 47K 5% SMD 0603 2 R1,2
2
SWSFKQDMA2220 SWITCH TACT Stern High:2.5mm O 2 SW1,2
2
VRR10300101 Potentiometer Rotary Volume:10 2 VR1,2