JVC HM-HDS1U, Service Manual

Page: 47 / 47

3-7
Signal (A)
•
RF signal
(Audio: L-ch 5 kHz 14% modulated)
Mode (B)
•
Tuner
•
EE
Equipment (C)
•
Audio level meter
Measuring point (D)
•
IC1501 pin 26
EVR mode (F1)
•
Jig RCU : Code “57”
EVR address (F2)
•
A : 24 (Press remote controller “2”
and “4” keys.)
Specified value (G)
•
Minimum level
Adjustment tool (H)
•
Jig RCU [PTU94023B]
•
Digit-key remote controller
(1) Set an audio signal mode of the RF signal generator to
alternate L-ch 5 kHz 14% modulated.
(2) Connect the equipment (C) to the measuring point (D).
(3) Set the VCR to the EVR mode by transmitting the code
(F1) from the Jig RCU.
(4) Set the EVR address to (F2) by pressing the button of
the digit-key remote controller.
(5) Adjust with the channel buttons (+,–) on the VCR (or on
the remote controller) so that the level of the measuring
point(D) becomes the specified value (G).
(6) Release the EVR mode of the VCR by transmitting the
code (F1) from the Jig RCU again. (When the EVR mode
is released, the adjusted data is memorized.)
3.6.5 Separation - 2
(5) Adjust with the channel buttons (+,–) on the VCR (or on
the remote controller) so that the level of the measuring
point (D) becomes the specified value (G).
(6) Release the EVR mode of the VCR by transmitting the
code (F1) from the Jig RCU again. (When the EVR mode
is released, the adjusted data is memorized.)
Signal (A)
•
No. signal
Mode (B)
•
Tuner
•
EE
Equipment (C)
•
Frequency counter
Measuring point (D1)
•
IC1501 pin 26
Short point (D2)
•
C1505 (–) terminal
EVR mode (F1)
•
Jig RCU : Code “57”
EVR address (F2)
•
A : 25 (Press remote controller “2”
and “5” keys.)
Specified value (G)
•
78.67 ± 0.5 kHz
Adjustment tool (H)
•
Jig RCU [PTU94023B]
•
Digit-key remote controller
(1) Connect the short wire between the short point (D2) and
the GND (Ground).
(2) Connect the equipment (C) to the measuring point (D1).
(3) Set the VCR to the EVR mode by transmitting the code
(F1) from the Jig RCU.
(4) Set the EVR address to (F2) by pressing the button of
the digit-key remote controller.
(5) Adjust with the channel buttons (+,–) on the VCR (or on
the remote controller) so that the frequency of the meas-
uring point (D1) becomes the specified value (G).
(6) Release the EVR mode of the VCR by transmitting the
code (F1) from the Jig RCU again. (When the EVR mode
is released, the adjusted data is memorized.)
(7) Disconnect the short wire between the short point (D2)
and the GND (Ground).
3.6.6 SAP VCO