JVC HR-S10EG Service Manual page 136

2.2.2 IF adjustment-2
1. Connect the RF generator output to the IF input of the
TUNER/IF board.
2. Set the generator frequency for 32.4 MHz and connect
oscilloscope to the SAW device input.
3. Adjust T6 to obtain minimum output.
4. Set the RF generator frequency for 34.47 MHz (EG) or
35.07 MHz (EK), AM 60%,
5. Tune T1 for maximum voltage at 1C1 pin 29.
2.2.3 Color level adjustment
1. Receive a color bar pattern signal via the antenna input.
2, Set the AFC switch ON.
3. Connect oscilloscope to CN1 pin 9 and observe the video
output.
4. Adjust R33 obtain a magenta color level of 0.93 Vp-p
(EG) or 0.80 Vp-p (EK) with respect to a total video
level of 1.8 Vp-p.
5. Confirm a video to sync ratio of 7 : 3.
2.2.4 Audio level adjustment
1. Receive the audio test signal via the antenna input.
2. Connect audio level meter to pin 1 of CN3.
3, Adjust R19 to obtain an audio level of —18 dBs (EG) or
—14 dBs (EK).
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