Alto AMX-80 Service Manual Download Page 2

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CONTENT

1. INTRODUCTION .....................................................................................................1

2.TECHNICAL SPECIFICATION...................................................................................2

3. BLOCK DIAGRAM ..................................................................................................3

4. SCHEMATIC DIAGRAM ...........................................................................................4

5. WIRING DIAGRAM ..................................................................................................6

6. PCB LAYOUT ..........................................................................................................7

7. TEST PROCEDURE .................................................................................................9

8. EXPLODED VIEW & MECHANICAL PARTS LIST ......................................................11

9. BOM ......................................................................................................................13

Summary of Contents for AMX-80

Page 1: ......

Page 2: ...CONTENT 1 INTRODUCTION 1 2 TECHNICAL SPECIFICATION 2 3 BLOCK DIAGRAM 3 4 SCHEMATIC DIAGRAM 4 5 WIRING DIAGRAM 6 6 PCB LAYOUT 7 7 TEST PROCEDURE 9 8 EXPLODED VIEW MECHANICAL PARTS LIST 11 9 BOM 13...

Page 3: ...amic range Balanced inputs for highest signal interity Warm natural 2 Band EQ on mono channel Warm natural 2 Band EQ on mono channel Balanced TRS and Headphone Outputs 2 track inputs assignable to mai...

Page 4: ...2 TECHNICAL SPECIFICATION X X X X 2...

Page 5: ...3 BLOCK DIAGRAM 3...

Page 6: ...4 SCHEMATIC DIAGRAM 4...

Page 7: ...5...

Page 8: ...5...

Page 9: ...5 WIRING DIAGRAM 6...

Page 10: ...HB02128 AMX 80 TOP LAYER TOP OVERLAY 6 PCB LAYOUT 7...

Page 11: ...HB02128 AMX 80 BOTTOM LAYER BOTTOM OVERLAY 8...

Page 12: ...X LEVEL to maximum the output LEVEL should be 15dBu 3dBu THD N 0 008 After test set MAIN MIX LEVEL back to middle position and CH LEVEL to minimum 4 Set AP input to 0dBu connecting unbalanced input wi...

Page 13: ...to 0dBu connecting unbalanced input at LINE IN2 3 LINE IN4 5 and the unbalanced output to TAPE OUT the output level should be 0dBu 3dBu THD N 0 005 Rotate the CH LEVEL to maximum output level should...

Page 14: ...minimum all the other knobs to middle position and all the switches to off position Test Complete 5 Frequency Response test With unbalance input connecting LINE IN of the AMX 80 set the high EQ knob...

Page 15: ...8 EXPLODED VIEW MECHANICAL PARTS LIST 12...

Page 16: ...12...

Page 17: ...001 NI00014 membrane 0 035 1M 1 0002 NH00012 bond paper 0 04 1M 1 0022 NE02717 label MADE IN CHINA 2 0001 NH00038 paper 0 115 1M 1 0002 NI00028 membrane 0 110 1M 1 0023 TG00212 adaptor RS 230V 50Hz_AC...

Page 18: ...6 ND00155 EV foam 25 20 5 1 0027 AC00179 tin without lead RS M705E Sn 3Ag 0 5Cu 9 5148 0028 HK07193 PC board RS P AMX 80 SMD 1 0001 SE00011 SMD rectifier diode RLS4148 0 5A LL 34 8 D1 D2 D3 D4 D5 D6 D...

Page 19: ...89 0033 RD00210 SMD precise resistor 1 10W 5 11K 1 0603 6 R10 R11 R13 R16 R114 R115 0034 RD00211 SMD precise resistor 1 10W 5 49K 1 0603 2 R112 R113 0035 RD00510 SMD precise resistor 1 10W 6 20K 1 060...

Page 20: ...ated circuit RS 4580M SOP8 YW 12 U1 U2 U3 U4 U5 U6 U7 U 8 U9 U10 U11 U12 0029 CB00255 electrolytic capacitor 1000uF 10V 8 11mm 5mm 1 C11 0030 SD00238 integrated circuit MC78L18ACP TO92 ON 1 IC3 0033 H...