7.25
RELAY 5 adjustment potentiometer
In case of tacho lamp failure relay 5 is controlled by a time delay
circuit adjusted by the potentiometer alongside the relay. Remove the
small 5 pin connector at the top of the TACHO LOGIC, code 7 card, and
place the machine in WIND. Using a stop watch measure the interval
between the moment the STOP button is pressed and the moment relay 5
is activated. Adjust the potentiometer to a minimum of 5 sec.
REMOTE CONTROL UNIT
7.26
SEARCH LOGIC ADJUSTMENT diagram 8926
Switch on the machine and the REMOTE CONTROL UNIT and allow at least 5
minutes warm-up time. Load a reel of tape and wind it forward approx 1
minute (display reading). Then reset the TIMER to 00.00. Continue
winding a minute or so; stop the machine at an odd number and set the
preselected thumb-switch to the same figure as that which appears on
the TIMER display.
a) Connect an oscilloscope to pin 7 on IC 30 and adjust the DC OFFSET
potentiometer so that the trace on the oscilloscope screen tends to
oscillate, at a rate of approx 100 Hz, between 0 V and +24 V. Set
the thumb-switch to one more digit than the tape timer display and
check that the voltage is fixed at +24 V; Set the thumb-switch to
two digits less than the tape timer display and check that the
voltage is fixed at 0 V.
b) Connect an oscilloscope to pin 8 on IC 33. Set the preselected
thumb-switch to 2 minutes more than the TAPE TIMER display and
press the START BUTTON. Adjust Pl so that the pulse width shown on
the oscilloscope screen is 3 ms, as illustrated below.
c) Connect the oscilloscope to pin 8 on IC 32. Set the preselected
thumb-switch to 2 minutes less than TAPE TIMER display and press
the WIND button, setting a slow rewind speed. Adjust P2 so that the
pulse width shown on the oscilloscope is 3 ms, as illustrated
above.
1977-05-01 TR532 7.26
Summary of Contents for TR532 Series
Page 6: ...2 2 DIMENSIONS Remote control type RCU Remote control type TPC 1977 05 01 TR532 1977 05 02 2 2...
Page 7: ...Remote Control type ATC 1984 05 17 TR532 2 2...
Page 16: ...Rear view connector numbers shown without cables 1977 05 01 TR532...
Page 20: ...Drawing No 5 02 Tape path 1977 05 01 TR532...
Page 43: ...1978 07 01 TR532 6A 6cont...
Page 49: ...REEL PLATFORM HEIGHT ADJUSTMENT DRAWING 7 01 1977 05 01 TR532...
Page 52: ...1977 05 01 TR532...
Page 53: ...BRAKE BAND 1978 08 01 TR532...
Page 55: ...1980 01 10 TR 532 7 8 1 cont...
Page 59: ...1980 01 10 TR 532 7 8 1 cont...
Page 61: ...LEFT TENSION ARM ASSEMBLY 1977 05 01 TR532...
Page 62: ...1978 08 01 TR532...
Page 64: ...1977 05 01 TR532...
Page 68: ......
Page 72: ...HEAD BLOCK 1977 05 01 TR532...
Page 79: ...AM 77 RECORD PLAYBACK AMPLIFIER 1977 05 01 TR532 7...
Page 80: ...7 1 1 Audio amplifier block diagram 1977 05 01 TR532...
Page 81: ...CAPSTAN MOTOR 1977 05 01 TR532...
Page 82: ...1977 05 01 TR532...
Page 92: ...1979 10 01 TR532...
Page 93: ...1977 05 01 TR532...
Page 94: ...1977 05 01 TR532...
Page 95: ...Drawing 8 01 1977 05 01 TR532...
Page 96: ...Drawing 8 02 1977 05 01 TR532...
Page 101: ...Drawing 10 01 1977 05 01 TR532...
Page 104: ...1977 07 08 TR53 TR532 10 3 cont...
Page 105: ...1977 07 08 TR53 TR532 10 3 cont...
Page 117: ...1978 05 01 TR532 11 5...
Page 118: ...1978 05 01 TR532 11 5...
Page 119: ...1978 05 01 TR532 11 5...
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