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Tascam Manuals
Recording Equipment
246
Service manual
Tascam Portastudio 246 Service Manual
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Also See for Portastudio 246
:
Owner's manual
(46 pages)
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Table Of Contents
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Specifications and Service Data
Precautions
Circuit Description
Outline
Control Circuit
Block Diagram
Play Mode
REC Mode
Pause Mode
REW Mode
FF Mode
Power on Mute Circuit
Amplifier Circuit Control Signal
Record, Playback Circuit
Signal in the Decode Mode
Signal in the Encode Mode
Major Parts Location
Maintenance
Adjusting Tools and Equipment
Definition and Measurement Conditions
Disassembly of Major Parts
Check and Alignment of Tape Deck Section
Pinch Roller Pressure
Take-Up Torque
Tape Travel
Head Azimuth
Tape Speed
Signal Path and Response Check of Mixer Section
Setting of each Switch and Control
Wow and Flutter
PGM out Level and VU Meter
Peak LED of VU Meter
Insert Output Level
OL (over Load) Indicator
MIC/Line Input - PGM out
EQ Response (MIC/Line in - PGM Out)
MIC/Line Input - Effect out
MIC/Line Input - Monitor out
Frequency Response
Headphone Output
Pingpong Recording
Record/Playback Amplifier Checks and Adjustment
Playback Level
Playback Frequency Response
Bias Tuning (T611-641)
Bias Trap
Bias Voltage
Record Level
Overall Frequency Response
Overall Distortion
Overall SN Ratio
Erasing Ratio
Crosstalk between Channels
Dbx Amplifier
Function Generator Schematic
Exploded View and Parts List
PCB Boards and Parts List
Input AMP PCB Assy
Monitor PCB Assy (A)
Monitor PCB Assy (B)
Buss PCB Assy
Joint PCB Assy
Operation Switch PCB Assy
Control (A) PCB Assy
Meter (A) PCB Assy
Control (B) PCB Assy
Meter (B) PCB Assy
Drive PCB Assy
Power Supply PCB Assy
In/Out PCB Assy
VR PCB Assy
Phone Jack PCB Assy
LED PCB Assy
R/P PCB Assy
Monitor PCB Assy
OPE SW PCB Assy
Meter PCB Assy
P. Supply PCB Assy
PWR SW PCB Assy
Speed SW PCB Assy
Sensor PCB Assy
Block Diagram
Level Diagram
IC Internal Circuit
Schematic Diagram
Wiring Diagram
Schematic Diagram - In/Out Pcb/Input AMPL PCB/LED PCB/MIC Jack Pcb/Buss PCB Assys
Schematic Diagram - Joint Pcb/Control Pcb/Control Pcb/Operation Switch Pcb/Remote Pcb/Punch In/Out PCB Assy
Schematic Diagram - Rec/Play PCB Assy
Schematic Diagram - Power Switch Pcb/Power Supply PCB Assys
Schematic Diagram - LED Pcb/Phone Jack Pcb/In-Out Pcb/Meter Pcb/Monitor PCB Assys
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Table of Contents
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Specifications and Service Data
3
Maintenance
4
Pinch Roller Pressure
5
Schematic Diagram - In/Out Pcb/Input Ampl Pcb/Led Pcb/MIC Jack Pcb/Buss Pcb Assys
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Owner's Manual
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