JVC HR-S2110T Service Manual page 12

3.5.4 Separation - 1 [HR-S2110T, S7800U/U(C)]
Signal (A) • RF signal
(Audio: L-ch 300 Hz 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 : 23 (Press remote controller "2"
and "3" 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 300 Hz 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.)
3.5.5 Separation - 2 [HR-S2110T, S7800U/U(C)]
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
3.5.6 SAP VCO [HR-S2110T, S7800U/U(C)]
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).
3.5.7 Main DET [HR-S6700KR]
Signal (A) • RF signal (sound carrier: S1)
Mode (B) • Tuner
• EE
Equipment (C) • Audio level meter
Measuring point (D) • IC1501 pin 26
Adjustment part (F) • T1502 (MAIN DET)
Specified value (G) • Minimum distortion
Adjustment tool (H) • LPF (30 kHz), HPF (400 Hz)
(1) Set the sound carrier of the RF signal generator to S1.
(2) Connect the adjustment tool (H) to the measuring point
(D). Then connect the equipment (C) to the adjustment
tool (H).
(3) Adjust the Adjustment part (F) so that the distortion level
of the measuring point (D) becomes the specified value
(G).