Samson XP308i Manuale utente

MODEL NO.: XP308I

Contents

Specification 1-2

Block Diagram 3

Packing View 4

Packing View Part List 5

Point To Point Wiring Diagram 6

Exploded View 7

Exploded View Part List 8-10

Electrical Part List 11-19

Schematic Diagram 20-23

Printed Circuit Board Diagram 24-28

IC Block Diagram 29-34

SERVICE MANUAL

XP308I

General Specification

MIXER PART

NORMAL LIMIT

*MAXIMUM VOLTAGE GAIN

;MICINTOMONITORL/R 62±3dBm

;MICINTOMONITORL/R(MIC/LINEWITHIN) 32±3dBm

;MIC IN TO AMP OUT (MIC/LINE WITHIN,LIMITER LED JUST LIGHT) 58±3dBm

;MONO LINE IN TO MONITOR L/R 20±3dBm

;STLINEINTOMONITORL/R 28

±3dBm

;MONO MIC IN TO REC OUT 38±3dBm

*FREQUENCY RESPONSE (20HZ~20KHZ)

(LEVER VR NORMAL, MONITOR VR NORMAL OUTPUT LEVEL +4dBm)

;MICINTOMONITORL/R ±2dB

;LINEINTOMONITORL/R ±2dB

;LINEINTORECL/R ±2dB

*MAXIMUM OUTPUT LEVEL

(OUTPUT LOAD 10K ohm,Before just clipping)

;MIC IN TO MONITOR L/R 21 dBm more than 20dBm

*T.H.D

( LEVEL , MONITOR VR NOMINAL, OUTPUT +14dBm, OUTPUT LOAD 10K ohm 80KHz LPF)

;MICINTOMONITORL/R LESSthan 0.1%

;LINEINTOMONITORL/R LESSthan 0.1%

*HPF

(SPEECH/MUSICON75HzMONITOROUTPUT) -3dB±1

*TONE CONTROL

(CH LEVEL ,MONITOR VR NORMINAL,OUTPUT +4dBm)

;10KHZ ±12dB ±12±3dB

;100HZ ±12dB ±12±3Db

General Specification

NORMAL LIMIT

*RESIDUAL NOISE

(20KHz LPF , AVG)

A) INPUT,OUTPUT LEVEL VR MINIMUM

MONITOROUT LESS THAN -90 dBm

B)ONLY MONITOR VR MAXIMUM

MONITOROUT 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) 21±2dBm

*PHANTOMPOWER 15±1V

*ECHO

AMP PART

*RATED OUTPUT POWER (MASTER VR NORMAL, CH LEVEL VR TO RATED POWER,600ΏLOAD)

; 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

8ohm load,Output 1W 6dB±2@50Hz, ±3dB@20kHZ

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.

Block Diagram

Packing View

Packing View Part List

REF NO. DESCRIPTION PART NO. Q'TY REMARK

1 GIFT BOX 507-XP308I-3054 1

2 CUSHION 506-XP308I-541 2

3 PE-BAG 505-XPL100-200 1

4 I/B ASS’Y 701-XP308I-4503 1

5 OUT CARTON 507-XP308I-3084 1

6 CUSHION 506-XP308I-562 1

7 EPE BAG 509-XP308I-260 2

8 HIMILON 612-XP308I-336 2

9 EPE SHEET 509-XP308I-261 1

10 PE BAG 505-100U-204 1

11 6.35∮SPEAKER CABLE 408-EXL250-082A 2

12 AC CORD(L-1900 18AWG LP-31 SJT LS-13) 409-XM910-121 1

Point To Point Wiring Diagram

101 102

POWER&AMP PCB

DC FAN

I'POD INPUT PCB

POWER SW

AC INPUT JACK

MIXER PCB

AN3&AN4

AN1&AN2

OUTPUT PCB

Exploded View

Exploded View Part List

REF NO. DESCRIPTION PART NO. Q'TY REMARK

1 PUSH KNOB 100-L2400-2569 10

2 CONTROL KNOB(B) 100-XM610-2217 21

3 KNOB CAP(WHITE) 100-XM610WHT-2218A 7

4 KNOB CAP(RED) 100-XM610RED-2218A 1

5 KNOB CAP(BLU) 100-XM610BLU-2218A 1

6 KNOB CAP(SLIVE) 100-XM610SIL-2218A 12

7 INLAY 501-STAGE-2167 1

8 PANEL ASS’Y 703-STAGE-1235 1

9 CARD CHASSIS 100-XP300-2517 1

10 TOP DOCK 100-XP300-2503 1

11 IPOD BUTTON 100-XP300-2504 1

12 SUPPORT 200-L1200-589 5

13 LED HOLDER 504-BD1550-067 12

14 AMPLIFIIER CASE ASS’Y 701-XP308I-1243S 1

15 CONTROL KNOB 100-STAGE-2625 2

16 REAR PAD(A) 300-STAGE-1672 2

17 REAR BRACKET 300-STAGE-1674 2

18 SHAFT 200-SP300-583 2

19 WASHER 606-B300-030 2

20 REAR PAD(B) 300-STAGE-1673 2

21 HANDLE 100-STAGE-2623 4

22 HANDLE COVER 100-STAGE-2624 4

23 HANDLE PAD 604-STAGE-496 4

24 SCREW THUMB 601-EX250-038 2

25 REAR CASE ASS’Y 701-STAGE-4438 2

26 FRONT CASE 100-STAGE-2630 2

27 SPRING SHEET 300-XP308I-1706 4

28 SLIDE 100-STAGE-2622 2

29 GRILL 300-STAGE-1675 2

30 REAR COVER 100-STAGE-2628 1

31 INSULATION SHEET 501-SP300-2182 1

32 SHIELE FENCE 300-SP300-1685 1

33 HEATSINK 425-KMD3500-016A 4

34 HEAT SINK ASS’Y 703-SP308-1240 1

35 HEAT SINK 425-STAGE-123 1

36 BOTTOM INLAY 300-SP300-1684 1

37 INSULATION SHEET 501-SP300-2181 1

38 FILP FOOT 603-SP300-377 1

39 HOOK GUIDE 200-STAGE-578 4

40 HOOK 300-SP300-1683 2

41 BOTTON BRASS 200-SP300-582 2

42 CAM GUIDE 200-XP308I-586 4

43 MICA 501-TST4-2028 2

Exploded View Part List

REF NO. DESCRIPTION PART NO. Q'TY REMARK

44 SAMSON LOGO 501-XP308I-2205 2

45 KNOB NECK 100-XP308I-2649 10

46 WASHER 606-LC58FA-130 4

47 TOOTH WASHER 606-F200-002 1

48 NUT 601-F200-001 1

49 COTTON 509-XP308I-252 2

50 EVA 612-XP308I-322 1

51 EVA 612-XPL200-293 6

52 EVA 612-XP308I-323 3

53 SILICONE SHEET 612-XP308I-324 1

54 POWER SW 403-DJ1-107A 1

55 2P 3.96CON ASS'Y(UL1007#18,RED*2,L=200mm) 404-XPL200-2679 1

56 AC INPUT JACK 420-SX1800-195 1

57 1P CONNECTOR WIRE(L=80MM,UL1015#18) 406-XP308I-1088 1 TO AC INPUT JACK

“GND”

58 I'POD INPUT PCB ASS'Y 704-XPL300-7193 1

59 DC FAN 401-XP308I-076 1

60 OUTPUT PCB ASS'Y 704-XP308I-8289 1

61 WOOFER SPEAKER(WOOFER 8Ω/75W,8") 419-XP308I-065 2

62 3P CONNECTOR WIRE(L=550mm,UL1430#18 TS RED/BLACK) 404-XPL200-2775 2

63 TWEETER SPEAKER(8Ω20W ∮25) 419-XP308I-066 2

64 3P CON ASS'Y(UL1430#18,BULE BLACK,L=550mm) 404-XPL100-2676 2

65 SPEAKER TWO FREQUENCY PCB ASS'Y 704-XP308I-8251 2

66 SPEAKER INPUT PCB ASS'Y 704-XP308I-8347 2

67 MIXER PCB ASS'Y 704-XP308I-8285 1

68 POWER&AMP PCB ASS'Y 704-XP308I-8286 1

69 AC CORD(L-1900 18AWG LP-31 SJT LS-13) 409-XM910-121 1

70 2P CONNECTOR(L=170mm UL1617#18 P=3.96mm) 404-XP308I-3148A 1 TO AC INPUT JACK “N

”

71 FERRITE CORE 415-F806-264 1

72 SAFETY CAPACITOR(2200pF/250VAC,M,Y5U,Y2,TAPING) 413-XP308I-1148 2

S1 SCREW TTB 4*10 602-PTPB4010-665 2

S2 SSCREW(3*8mm TTB) 602-2002-077 8

S3 SCREW TTB3*8 602-XM610-528 24

S4 SCREW M2.6*6 602-XM610-514 5

S5 SCREW M2*5 602-DD2220-301 4

S6 SCREW 2.6*6 602-KMD510-158 4

S7 SCREW 2.6*6 602-ISOB2606-654 9

S8 SCREW M3*6 602-SX1200-544 4

S9 SCREW BM4*8 602-CDVD2001-351 2

S10 SCREW 602-TTB5024-668 22

S11 SCREW TTB 4*16 602-BTTB4016-676 20

S12 SCREW M6*16 602-PISO6016-667 8

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