Samson XP308I Service Manual
Samson XP308I Service Manual
Samson XP308I Service Manual
XP308I
MIXER PART
NORMAL LIMIT
*MAXIMUM VOLTAGE GAIN
;MIC IN TO MONITOR L/R 623dBm
;MIC IN TO MONITOR L/R(MIC/LINE WITHIN) 323dBm
;MIC IN TO AMP OUT (MIC/LINE WITHIN,LIMITER LED JUST LIGHT) 583dBm
;MONO LINE IN TO MONITOR L/R 203dBm
;ST LINE IN TO MONITOR L/R 283dBm
*T.H.D
( LEVEL , MONITOR VR NOMINAL, OUTPUT +14dBm, OUTPUT LOAD 10K ohm 80KHz LPF)
;MIC IN TO MONITOR L/R LESS than 0.1%
;LINE IN TO MONITOR L/R LESS than 0.1%
*HPF
(SPEECH/MUSIC ON 75Hz MONITOR OUTPUT) -3dB1
*TONE CONTROL
(CH LEVEL ,MONITOR VR NORMINAL,OUTPUT +4dBm)
;10KHZ 12dB 123dB
1
General Specification
NORMAL LIMIT
*RESIDUAL NOISE
(20KHz LPF , AVG)
A) INPUT,OUTPUT LEVEL VR MINIMUM
MONITOR OUT LESS THAN -90 dBm
B) ONLY MONITOR VR MAXIMUM
MONITOR OUT LESS THAN -70 dBm
*CROSSTALK
(CH LEVEL VR & MONITOR VR NORMAL,OUTPUT 20dBm , FREQ 1KHz , 80KHz LPF)
CH VS CH LESS THAN -67 dB
INPUT VS OUTPUT LESS THAN -70 dB
*LEVEL METER (0VU) 212dBm
*PHANTOM POWER 151V
*ECHO
AMP PART
*RATED OUTPUT POWER (MASTER VR NORMAL, CH LEVEL VR TO RATED POWER,600 LOAD)
; 8 OHM @ 1KHZ, 5%THD (LPF 20KHz) (ONE CH) 100W More than 95W( no clipping)
*LIMITER (CH LEVEL VR & MASTER VR NORMAL)
(AMP OUTPUT) 105W LESS than 110W,no clipping
RATED Ouput,Again add 20dBm,Amp Output No Clipping
*FREQUENCY RESPONSE
Remark:
1. If check we want to output test signal from the analyzer(VP-7723B),please parallel a 600 ohm Load from the output
signal.
2.. The low pass filter should be 20KHz while testing the part of Amp.
2
Block Diagram
3
Packing View
4
Packing View Part List
5
Point To Point Wiring Diagram
DC FAN
MIXER PCB
AN AN POWER SW
OUTPUT PCB
AC INPUT JACK
AN AN
POWER& PCB
6
Exploded View
7
Exploded View Part List
8
Exploded View Part List
9
Exploded View Part List
10
Mixer PCB Ass'y Part List
VR1,VR2,VR4,VR5,VR7,
VR8,VR10,VR11
VR(XV09213YNPV30F1B50KCC(50K*1)) 418-TXM20-359 8
VR3,VR6,VR9,VR12,VR2
1
VR(XV09213YNPV30F15A20K(20K*1)) 418-TXM20-362 5
11
Mixer PCB Ass'y Part List
R11E,R11F,R16F,R17F,R18
F,R18H,R20A,R20B,R20C,R
20D,R20G,R21A,R21B,R21
C,R21D,R22A,R22B,R22C,
R22D,R2G,R3E,R3F,R3G,R
44H,R4E,R4F,R5E,R5F,R9
G,R12F,R13E,R13F,R14E,R
14F,R16A,R16B,R16C,R16 CHIP RESISTOR(10K OHM,1/8W,0805,J,TP 150V) 412-DV330-306 65
D,R17A,R17B,R17C,R17D,
R18A,R18B,R18C,R18D,R7
E,R8E,R8F,R9E,R24G,R16
E,R12E,R7F,R9F,R6E,R6F,
R76H,R77H,R78H,R79H,R8
0H,R81H,R21H,R40H
R23H,R27H,R33H,R47H,R7
G,R61H CHIP RESISTOR(100K OHM,1/8W, 0805,J,TP 150V) 412-DV330-307 6
R13H,R5H,R22G,R22H,R46
H,R14H,R42H,R1G CHIP RESISTOR(20K OHM,1/8W,0805,J,TP ,150V) 412-DV330-311 8
R5A,R5B,R5C,R5D,R6A,R6
B,R6C,R6D CHIPRESISTOR(47KOHM,1/8W,F,0805,150V,TP) 412-XP308I-1378 8
R25A,R25B,R25C,R25D,R2
6A,R26B,R26C,R26D CHIPRESISTOR(4.7KOHM,1/8W,F,0805,150V,TP) 412-XP308I-1379 8
12
Mixer PCB Ass'y Part List
R11A,R11B,R11C,R11D,R1
2A,R12B,R12C,R12D CHIPRESISTOR(3.9KOHM,1/8W,F,0805,150V,TP) 412-XP308I-1381 8
R13A,R13B,R13C,R13D,R1
4A,R14B,R14C,R14D,R15A,
R15B,R15C,R15D,R24A,R2 CHIPRESISTOR(220KOHM,1/8W,F,0805,150V,TP) 412-XP308I-1382 16
4B,R24C,R24D
C1E,C1F,C20H,C2E,C2F,C
30H,C5E,C6E,C6F,C36H,C4 CHIP CAPACITOR(100pF/50V,J,0805 TYPE,NPO) 413-DV330-310 14
1H,C46H,C47H,C5F
C10E,C10F,C13E,C13F,C14
E,C14F,C17A,C17B,C17C,C
17D,C18A,C18B,C18C,C18 CHIP CAPACITOR(0.022uF/50V,K,0805 TYPE,X7R) 413-DV330-317 16
D,C9E,C9F
C27A,C27B,C27C,C27D,C2
7E,C27F,C28A,C28B,C28C,
C28D,C28E,C28F,C29E,C2
CHIP CAPACITOR(4700PF/50V,1206,K,5%,X7R,TAPING) 413-XP308I-1150 16
9F,C30E,C30F
D513,D514,D515,D518,D51
9,D520,D1A,D1B,D1C,D1D,
D2A,D2B,D2C,D2D,D3A,D3 SMD DIODE(LL4148 AXIAL TYPE L=3.8mm) 414-CDVD2003-139 22
B,D3C,D3D,D4A,D4B,D4C,
D4D
13
Mixer PCB Ass'y Part List
C1G,C1H,C24G,C8H,C45H,
C35H,C49H ELEC. CAPACITOR(100uF/25V,M,105 ,TAPING 6.3*11) 413-HS100-180 7
C11A,C11B,C11C,C11D,C1
2A,C12B,C12C,C12D,C10H,
C14H,C16A,C16B,C16C,C1
6D,C17E,C17F,C18E,C18F,
C19F,C20F,C22A,C22B,C22 ELEC. CAPACITOR ( 47uF/25V M 105 , TAPING 5*11 )(Cd,Pb,Hg,Cr) 413-HS100-181 39
C,C22D,C25G,C28H,C3E,C
3F,C4E,C4F,C4H,C7E,C7F,
C7H,C8E,C8F,C32H,C69H,
C70H
14
Power & Amp PCB Ass'y Part List
C103,C104,C107,C108,C10
9,C110,C112,C113,C114,C1
15,C116,C183,C184,C185,C
186,C145,C146,C149,C150, CHIP CAPACITOR(0.1uF/100V,K,1206 X7R) 413-SZ480-1029 30
C151,C152,C153,C154,C15
5,C156,C128,C157,C158,C1
11,C170
16
Power & Amp PCB Ass'y Part List
18
Speaker Input & Output & I'POD Input PCB Ass'y Part List
R705,R706,R707,R7
CHIP RESISTOR(22.1K ohm,1/8W,F,0805) 412-XPL300-1300 6
08,R709,R710
19
20
22
IC Block Diagram
417-XM910-779 IC(KA2284B)
29
IC Block Diagram
30
IC Block Diagram
31
IC Block Diagram
1N2
+ IN2
VCC
8
5
417-ST150-599(NJM4580M)
2ch
+
+
1ch
1
4
OUT
1N1
+ IN1
VEE
32
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IC Block Diagram
HEF4047B
417-SZ
480-79
9
IC(HEF
4047B
T)
33
Logic diagram.
IC Block Diagram
34