Panasonic NV-FJ623EG, Service Manual

Page: 18 / 76

3.3.5 AI FUNCTION ADJUSTMENT (AUTOMATIC)
3.3.6 VIDEO FREQUENCY RESPONSE ADJUSTMENT
PROCEDURES FIP DISPLAY
Press the FF and EJECT Keys
simultaneously for 3 seconds.
Press the FF and EJECT Keys
simultaneously twice.
Press the EJECT key for 3 seconds.
Press the CH UP key in 3 times.
Insert the blank cassette tape.
(The adjustment is automatically started.)
When the sequence of the automatical adjustment has been terminated successfully, the VCR goes to STOP mode.
Release the Service mode by pressing the EJECT and FF keys simultaneously in 6 times until the FIP becomes normal indication.
Fig. E4
PROCEDURES FIP DISPLAY
Input the Video sweep signal.
(See Fig.E1)
Press the FF and EJECT Keys
simultaneously for 3 seconds.
Press the FF and EJECT Keys
simultaneously twice.
Press the EJECT key for 3 seconds.
Press the CH UP and/or CH DOWN key until "11" is displayed on FIP.
Insert the Self-recorded tape and playback it. (SP/LP/EP mode)
Connect the Oscilloscope to:
*CH1....Video Out (TW3002).
*CH2....V.FREQ.(TW6002)
Press the "4" key on the remote controller.
(Confirm that TW6002 becomes high(5V)).
Adjust the Frequency response by pressing the "2"(increase) and/or "8"(decrease) key on the Remote Controller. (See Fig.E2)
Store the Adjusted value by pressing the "5" key on the Remote Controller.
Release the Service mode by pressing the EJECT and FF keys simultaneously in 6 times until the FIP becomes normal indication.
Fig. E5