(No.YD051)1-21
(1) Record the signal (A2) in the mode (B1), and play back
the recorded signal.
(2) Set the VCR to the manual tracking mode.
(3) Set the VCR to the FWD slow (+1/6x) mode.
(4) Transmit the code (F) from the Jig RCU to adjust so that the
noise bar becomes the specified value (G) on the TV
monitor in the slow mode.
(5) Set the VCR to the Stop mode.
(6) Confirm that the noise bar is (G) on the TV monitor in the
slow mode.
(7) Repeat steps (1) to (6) in the mode (B2).
Note:
•
For FWD slow (+1/6x) playback, transmit the code “43-
08” from the Jig RCU to enter the slow playback mode.
4.3.2 Syscon circuit (EL, ER, EX, EY, EZ MODELS)
Notes:
•
When perform this adjustment, remove the Mechanism
assembly.
4.3.2.1
Timer clock
(1) Connect the frequency counter to the measuring point
(D1).
(2) Connect the short wire between the short point (D2) and
Vcc (5V).
(3) Short the leads of capacitor (D3) once in order to reset
the microprocessor of the Syscon.
(4) Disconnect the short wire between the short point (D2)
and Vcc then connect it again.
(5) Adjust the Adjustment part (F) so that the output frequency
becomes the specified value (G).
Signal
(A1) • No signal
Mode
(B)
• EE
Equipment
(C)
• Frequency counter
Measuring point (D1)
(D2)
(D3)
• IC3001 pin 61
• IC3001 pin 24
• C3026 + and -
Adjustment part (F)
• C3025 (TIMER CLOCK)
Specified value (G)
• 1024.008 ± 0.001 Hz
(976.5549 ± 0.0010 usec)
