Fostex VF-16 service manual

Service Manual

Model

DIGITAL MULTITRACKER

Contents

Main SAFETY INSTRUCTIONS CAUTION CAUTION: ATTENTION: WARNING Page 1. SPECIFICATIONS DEFINITION SPECIFICATIONS GENERAL VF-16 2. CONTROLS, INDICATORS & CONNECTORS 6/14/F5/13/E1/9/A 4/12/D3/11/C2/10/B 7/15/G PEAK 8/16/H 010 61 62 63 64 65 66 67 68 69 70 3. SOFTWARE UPDATE 3-1. Required Tools 3-2. Software Updating Procedures 4. SERVICE MODE 4-1. Putting VF-16 into Service Mode 4-2. Flash ROM (software) version 4-4. Self Check Optical Cable MIDI cable 4-3. DA Test SCSI Cable SCSI Drive (ZIP, MO, etc) ID #: 1 ~ 6 < Cable connection when in SelfCheck mode > Page Page 4-5. Offset Display 4-5. Initializing Disk 4-6. Flash ROM 4-7. Free Block Check 6/14/F5/13/E1/9/A 4/12/D3/11/C2/10/B 7/15/G 8/16/H 4-8. Product Initialize This mode is exclusively used at our assembly line and has nothing to do with servicing the unit. 4-9. Key & LED Check Tests 4-9-1. Key & LED Check ABCDEFGH 4-9-2. LED Check 2 ABCDEFGH PHONES 010 MON OUT 12345678 : ORANGE ABCDEFGH PHONES 010 : YELLOWISH GREEN MON OUT To get out of the test mode, press the MASTER key while holding down the [SHIFT] and [STOP] keys. 2/10/B 6/14/F 7/15/G 8/16/H L R5/13/E4/12/D3/11/C1/9/A 6/14/F5/13/E1/9/A 4/12/D3/11/C2/10/B 7/15/G 8/16/H VF-16 ERROR CODE LIST DESCRIPTION ERROR CODE 6. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST VF-16 OVERALL EXPLODED VIEW & PARTS LIST A C F B VF-16 PCB ASSEMBLIES Parts Side of MAIN PCB T800mA 250V INPUT AMP PCB,MAIN,VF-16 Foil Side of MAIN PCB J J1 C259 C165 Parts Side of KEY & KEY2 PCB 5 4 BA 21 10 21 9 Foil Side of KEY & KEY2 PCB 8251996301 CB A A 1 Parts& Foil Side of MIC/MON PCB INPUT BAL J1 C11 C7 VF-16 Parts List Page Page Page Page Page Page 7. CIRCUIT & BLOCK DIAGRAMS ROOT, MAIN PCB, VF-16 POWER CPU AUDIO_IF DSP CPU, MAIN PCB, VF-16 MEMORY MEMORY, MAIN PCB, VF-16 FLASH MEMORY DRAM VCC 14 /CS_EPROM 14 S4 R 1 GATE ARRAY, MAIN PCB, VF-16 SCSI VCO SLAVE SCSI I/F, MAIN PCB, VF-16 DD16 DD17 DD16 DD15 VCO, MAIN PCB, VF-16 S10 R 13 14 VCC 14 S4 R SLAVE GR, MAIN PCB, VF-16 ROOT, DSP, MAIN PCB, VF-16 DSP 2 RECBUS_DOUT3 5 SO_DSP4 ANALOG IN, MAIN PCB, VF-16 DSP1, MAIN PCB, VF-16 AK7716 DSP1 DSP2, MAIN PCB, VF-16 AK7716 DSP2 ANALOG OUT, MAIN PCB, VF-16 POWER, MAIN PCB, VF-16 21 13 7 AC IN INPUT MONITOR PEAK LED INPUT, MIC/MONITOR PCB, VF-16 INPUT7 -10dBV INSERT8 UNBAL MONITOR, MIC/MONITOR PCB, VF-16 PHONES 20mW 16ohm MON OUT L MON OUT R PEAK LED, MIC/MONITOR PCB, VF-16 +12V +12V R*61=240k R*62=27k R*61=62k R*62=47k KEY_CPU KEY LED FADER CPU, KEY PCB, VF-16 P41/TMO0 10 P40/TMCI0 9 VCC 14 A14 A13 KEY, KEY PCB, VF-16 KEY_SEG5 KEY_SEG7 KEY_SEG4 KEY_SEG3 LED, KEY PCB, VF-16 FADER, KEY PCB, VF-16 PEAK LED PCB, VF-16 LCD PCB, VF-16 KEY2 PCB, VF-16 KEY_SEG6 KEY_SEG0 BLOCK DIAGRAM (INPUT), VF-16 3BAND EQ TRK 9-16 / INPUT A-H TRK 1-8 3BAND EQ (or COMP) 16TRK HDR 3BAND EQ COMP