Page 3 - to assist the service technician in maintaining the Model VF-16.; CAUTION
3 VF-16 TABLE OF CONTENTS ! 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . . . . . 3. SOFTWARE UPDATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. SERVICE MODE . ...
Page 5 - GENERAL
5 VF-16 Phantom power Connector XLR Output level 48 ± 4 V (ON/OFF by SETUP mode) Impedance 10 k Ω or more DATA OUT Connector Square shape optical Format IEC consumer Optical Standard EN60958 (S/P DIF) Alesis Proprietary Mutichannel Optical Digital Interface Control System Input & Output SCSI DAT...
Page 7 - Contrast adjusting knob; DIGITAL
7 VF-16 35. [AUTO RTN - END / MARK4] key36. [CLIPBOARD - IN / MARK5] key 37. [CLIPBOARD - ALIGN SEL / MARK6] key38. [CLIPBOARD - OUT / MARK7] key 39. [A RTN/A PLAY / SCENE SEQ] key40. [HOLD/ ] key / 41. [STORE] key42. [EDIT] key 43. [UNDO/REDO] key44. [VARI PITCH / P.EDIT] key 45. [LOCATE / LOC MEM]...
Page 8 - IBM PC/AT compatible computer with SCSI board
8 VF-16 3. SOFTWARE UPDATE Since the 8Mbit flash ROM is mounted on the MAIN PCB assy, the VF-16 software can be updated through the SCSIport. Please refer to the following explanation for correct software updating procedures. 3-1. Required Tools The following tools/equipment are required to update t...
Page 10 - This menu is not currently working.; MIDI cable; Optical Cable; SCSI Cable; < Cable connection when in “SelfCheck” mode >
10 VF-16 4-4. Self Check This menu automatically tests the following points in order.1. SCSI port → 2. ATA (E-IDE) bus → 3. MIDI in/out circuit → 4. S/P DIF digital signal in/out → 5. ADAT digital signal in/out → 6. Phantom power (+48V) → 7. A/D and D/A circuit (Input Monitor) 4-3. DA Test This menu...
Page 11 - be displayed on the LCD.
11 VF-16 4-4-1. SCSI Port Check If the VF-16 does not recognize a connected SCSI drive or the SCSI drive is not actually connected, the following will be displayed on the LCD. The following will be displayed when the SCSI drive is connected properly but the disk is not put in the drive. The followin...
Page 16 - The LCD indicates the following in this mode.
16 VF-16 The LCD indicates the following in this mode. If one of the keys on the top panel is pressed, the LCD indicates the following. The message “OK” indicates that the pressed key (SW) is in good contact. If two or more keys on the top panel are pressed at the same time, the message “ERROR” will...
Page 19 - VF-16 ERROR CODE LIST; DESCRIPTION
19 VF-16 5. ERROR CODE LIST The chart below indicates the error code number and corresponding description. Since the error code list is basicallydesigned for our engineers to improve the software, the description is quite technical. If you find the VF-16 with one of the error codes displayed, we enc...
Page 20 - VF-16 OVERALL EXPLODED VIEW & PARTS LIST; Description
20 VF-16 6. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST Ref. No. Part No. Description 1 8270 8820 51 Hard disk assy, IDE, 3.5”, 5.1GB 2 8221 3331 00 Panel, top, VF-16 3 8212 6910 00 Window, LCD, VF-16 4 8212 6950 00 Panel, LCD, VF-16 5 8260 5740 00 LCD assy, VF-16 6 8221 3130 00 Bracket, LCD, VF-16...
Page 22 - VF-16 PCB ASSEMBLIES; • Parts Side of MAIN PCB
22 VF-16 VF-16 PCB ASSEMBLIES • Parts Side of MAIN PCB 8251702 300 C3 C4 C5 C6 C11 C12 C13 C14 C18 C20 C21 C26 C30 C33 C34 C37 C41C42 C43C44 C45 C46 C47 C48 C50 C55 C56 C57 C59 C60 C62 C63 C66 C68 C71 C72 C73 C76 C77 C78 C79 C80 C82 C83 C84 C85 C86 C89 C90 C91 C93 C94 C96 C97 C98 C101 C103 C104 C113...
Page 23 - • Foil Side of MAIN PCB
23 VF-16 • Foil Side of MAIN PCB 2 17 1 J901 J902 C357 C359 C365 C401 C402 C406 C407 C457 C459 C461 C19 C21 C22 C13 C15 C16 C17 C38 C40 C46 C39 C72 C48 C100 C1016 D1 D1006 J6 L1004 3 4 1 2 L1006 R19 R20 R26 R53 R54 R87 R1012 R1013 C1001 C1002 C1003 C1004 + D1001 F1001 L N J1001 L1001 L1002 L1003 3 4...
Page 24 - • Parts Side of KEY & KEY2 PCB
24 VF-16 1 12 J10 D4 D5 D6 D7 D8 D15 D16 D23 D24 D31 D32 D39 D40 D46 D48 D77 D78 D83 D84 D85 D86 D93 D94 D100 D102 D109 G RGR D110 G RGR R37 R38 3 2 1 R57 3 2 1 R58 S5 S6 S7 S8 S15 S16 S23 S24 C5 D9 D10 D11 D12 D13 D14 D17 D18 D19 D20 D21 D22 D25 D26 D27 D28 D29 D30 D33 D41 D57 D58 D71 D72 D73 D74 D...
Page 25 - • Foil Side of KEY & KEY2 PCB
25 VF-16 • Foil Side of KEY & KEY2 PCB 8251996301 PCB.KEY .VF-16 A B C D E F G H I C12 C5 C13 C22 U9 17 1 R16 17 1 64 49 48 33 32 16 U1 U2 1 8 U13 8 1 C19 J2 2 19 10 20 19 C1 U6 1 8 C18 C20 D9 D10 D1 1 D17 D18 D19 D20 D33 D41 D57 D58 D71 R20 R21 S9 S10 S11 S12 D25 D26 D27 D28 D34 D35 D36 D37 D80...
Page 26 - • Parts& Foil Side of PEAK LED PCB
26 VF-16 • Parts& Foil Side of MIC/MON PCB C605 C702 C703 C704 C705 C709 C710 C711 C804 C805 C809 J701 J702 J703 R620 R720 R820 C301 C305 C401 C405 C406 C501 C505 C506 C601 C606 J401 J501 J601 R320 R420 R520 C101 C105 C106 C201 C205 C206 C306 J101 J201 J301 R120 R220 C11 C12 C153 C233 C253 J2 J2...
Page 27 - VF-16 Parts List; • Main PCB assy
27 VF-16 VF-16 Parts List • Main PCB assy Ref. No. Part No. Description 8274 2540 00 PCB Assy, Main, VF-16 8251 7022 00 Plain PCB, Main, VF-16 ICs Ref. No. Part No. Description U001 8236 0831 30 SOJ, DG, DRAM, MSM5118160-60JS-7R1 U002 8236 5450 00 ST, TSSOP, 74VHC00 U003 8236 5450 74 ST, TSSOP, 74VH...
Page 28 - CAPACITORs; ALU = Electrolytic type
28 VF-16 Ref. No. Part No. Description R033 8230 5101 03 ST, carbon, 1/15W, 10k Ω , 5% R034 8242 5051 02 Filter, ST, EMI, EXC3BB, 102 R035 8230 5101 01 ST, carbon, 1/15W, 100 Ω , 5% R036 8230 5105 62 ST, carbon, 1/15W, 5.6k Ω , 5% R037 N/A R038 8230 5103 31 ST, carbon, 1/15W, 330 Ω , 5% R039 8230 51...
Page 35 - MEMORY
35 VF-16 CPU, MAIN PCB, VF-16 1 2 3 4 5 1 2 3 4 5 2 1 3 10 9 8 11 12 1314 17 18 3 2 1 4 5 67 15 16 PE13/MRES 112 PB6/A18/BA CK 29 PD12/D12 56 PE0/DREQ0 85 PB7/A19/BREQ 30 PB8/A20/W AIT 31 PB9/A21/ADTRG 32 VSS 33 P A14/RD 34 WDT O V F 35 P A13/WRH 36 VCC 37 P A12/WRL 38 VSS 39 P A11/CS1 40 P A10/CS0 ...
Page 46 - AC IN
46 VF-16 POWER, MAIN PCB, VF-16 AC IN 6 5 10 9 8 12 11 14 13 1 2 43 7 1 23 4 L1004 LINE FILTER 18mH/0.5A C1004100/400V C1005 0.01/630V R1002100k/2W D1002S2V60 1 2 3 CS D U1001 IPD MIP166 C1006 0.1 C100747/16 R10035.6,1/10W D1003MA171 C1008 0.1 R1004 5.6,1/10W C1009 0.0022/250VAC C1010 0.0022/250VAC ...
Page 58 - ASP EFFECT
58 VF-16 BLOCK DIAGRAM (INPUT), VF-16 +48V +48V A/D TRIM GAIN EFF1 EFF2 AUX1 PAN AUX2 PRE/POST CH ON PHANTOM (SETUP) TRIM CH STATUS PLAYREC 3BAND EQ PEAK INPUT A(+4 ~ -50dBv) A/D TRIM PEAK INPUT B(+4 ~ -50dBv) INPUTSUB MIXCH1/2(SETUP) INPUT G(+4 ~ -50dBv) PEAK A/D PHANTOM (SETUP) TRIM INPUT H(+4 ~ -...
Page 59 - HDR; EQ
59 VF-16 BLOCK DIAGRAM (OUTPUT), VF-16 To METER D/A D/A D/A D/A AUX 1/2 MASTER ST MASTER / MON AUX1 MASTER AUX2 MASTER ST MASTER To DATA OUT CH ON FOOT SW L R ST OUT(-10dBv) AUX 1/2 OUT (-10dBv) L R MON OUT (-10dBv) PHONES DATA IN MONGAIN PHONES GAIN ST BAL REC BUSSMASTER INPUT1 DIR INPUT2 DIR INPUT...