JVC RM-STHA10EC, Service Manual

Page: 21 / 116

TH-A10R/TH-A10
1-21
(1) Auto adjustment method
(2) Confirmation of DVD RF level
(3) Confirmation of CD jitter level and RF level
If microprocessor (IC401, IC402, IC714, IC716) or DVD Prek-up is replaced, initialize
the DVD player in the following matter:
1. Initialize the DVD player in the following matter:
1) Make sure that no disc is on the tray.
2) Insert the power pulag to the outret while pressing "PLAY" and "OPEN/CLOSE" button at the
same time.
FL Display indicate ; Region cord.
3) Press Enter button. And EEPROM initialize start.
4) When indicate "96kHz EEPROM" on the display , initialize finished.
Note : During the EEPROM initialization the keys may not be operated.
Press the "POWER" key to initiate the STAND-BY mode and the test mode will then
be cancelled.
Adjustment and confirmation matter
1.The oscilloscope is connected between "1"(RFOP) of
CN104 and "2"(GND).
2.Reproduction of the test disc (VT-501)
made by JVC.
3.It is confirmed that RF LEVEL is 350mVp-p 150mVp-p.
4.When there is disorder in the waveform road cuts etc,
test disk is exchanged and measured.
1. The CD jitter meter is connected between "11"(GND)
of CN104 and "12"(FLTOUT).
The RF level is observed at the same time.
2.The first test disk(CTS-1000) made of JVC is reproduced.
3.It is confirmed that RF LEVEL is 360 100mVp-p.
5. When there is disorder in the waveform road cuts
etc, test disk is exchanged and measured.
FRONT SIDE
P12
and
GND
P1
and
GND
Main Adjustment
DVD SERVO CONTROL PWB