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Specified
value (G)
Fig.4-12-3 EE composite burst level
4.12.1.4 EE R/G/B level
Signal
(A)
• Internal colour bar
Mode
(B)
• EE
Equipment
(C)
• Oscilloscope
Measuring point (D1)
• L-1 connector pin15(R)
(D2)
• L-1 connector pin11(G)
(D3)
• L-1 connector pin7(B)
EVR mode
(F1)
• Jig code "43-95"
EVR address
(F2)
• "ADJUST05 : **"
(F3)
• Jig code "43-25"
(F4)
• Jig code "43-18" or "43-19" (Channel +/-)
(F5)
• Jig code "43-3C"
Specified value (G) • 0.70 ± 0.02 Vp-p (terminated)
Adjustment tool (H)
• Jig RCU [PTU94023B]
(1) Observe the R OUT waveform at the measuring point (D1).
(2) Set the VCR to the EVR mode by transmitting the code (F1)
from the Jig RCU.
(3) Set the EVR address to (F2) by transmitting the code (F3)
from the Jig RCU.
(4) Transmit the code (F4) from the Jig RCU to adjust so that
the R level of the R OUT waveform becomes the specified
value (G).
(5) Release the EVR mode of the VCR by transmitting the
code (F5) from the Jig RCU again. (When the EVR mode
is released, the adjusted data is memorized.)
(6) Observe the G OUT waveform at the measuring point (D2).
(7) Repeat steps (2) to (5) above.
(8) Observe the B OUT waveform at the measuring point (D3).
(9) Repeat steps (2) to (5) above.
Fig.4-12-4 EE R/G/B level
4.12.1.5 EE COMPONENT PB/CB level
Signal
(A)
• Internal colour bar
Mode
(B)
• EE
Equipment
(C)
• Oscilloscope
Measuring point (D)
• COMPONENT PB/CB terminal
EVR mode
(F1)
• Jig code "43-95"
EVR address
(F2)
• "ADJUST06 : **"
(F3)
• Jig code "43-26"
(F4)
• Jig code "43-18" or "43-19" (Channel +/-)
(F5)
• Jig code "
Specified value (G) • 0.70 ± 0.02 Vp-p (terminated)
Adjustment tool (H)
• Jig RCU [PTU94023B]
(1) Observe the CB OUT waveform at the measuring point (D).
(2) Set the VCR to the EVR mode by transmitting the code (F1)
from the Jig RCU.
(3) Set the EVR address to (F2) by transmitting the code (F3)
from the Jig RCU.
(4) Transmit the code (F4) from the Jig RCU to adjust so that
the CB level of the CB OUT waveform becomes the speci-
fied value (G).
(5) Release the EVR mode of the VCR by transmitting the
code (F5) from the Jig RCU again. (When the EVR mode
is released, the adjusted data is memorized.)
Fig.4-12-5 EE component PB/CB level
4.12.2 Syscon circuit
Notes:
• When perform this adjustment, remove the Mechanism
assembly.
4.12.2.1 Timer clock
Signal
(A)
• No signal
Mode
(B)
• EE
Equipment
(C)
• Frequency counter
Measuring point (D1)
• IC3001 pin 61
(D2)
• IC3001 pin 17
(D3)
• C3026 + and -
Adjustment part (F)
• C3025 (TIMER CLOCK)
Specified value (G)
• 1024.008 ± 0.001 Hz
(976.5549 ± 0.0010 usec)
(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).
3C"
43-
PB/CB level
(No.YD091)1-37
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