ELECTRICAL ADJUSTMENTS
Method (2)
1.Set the multi-sound signal generator L-ch=1KHz, R-ch
=Non input and receive the RF.
2.Connect the oscilloscope to the pin 7 of CP601.
3.Activate the adjustment mode display of Fig. 1-1 and
press the channel button (26) on the remote control to
select OSEP 1�.
4.Press the VOL. UP/DOWN button on the remote control to
"A"adjust it until the R-ch output becomes minimum.
5.Set the multi-sound signal generator L-ch=Non input,
Fig. 2-2
R-ch=1KHz and receive the RF.
6.Connect the oscilloscope to the pin 6 of CP601.
7.Activate the adjustment mode display of Fig. 1-1 and
press the channel button (27) on the remote control to
select OSEP 2�.
8.Press the VOL. UP/DOWN button on the remote control to
adjust it until the L-ch output becomes minimum.
2-16: FM LEVEL
1.Receive the monoscope pattern (70~80dB).
2.Connect the AC voltmeter to pin 14 of IC901.
3.Activate the adjustment mode display of Fig. 1-1 and
White 100%Red 110%press the channel button (24) on the remote control to
Fig. 2-3select OFM LEVEL�.
4.Press the VOL. UP/DOWN button on the remote control
2-14: SUB CONTRASTuntil the AC voltmeter is 75 ? 5mV.
1. Activate the adjustment mode display of Fig. 1-1 and
2-17: LEVEL
press the channel button (17) on the remote control to
select "CONT.MAX".1.Receive the monoscope pattern (70~80dB).
2. Press the VOL. UP/DOWN button on the remote control2.Connect the AC voltmeter to pin 6 of CP601.
until the contrast step No. becomes "65".3.Activate the adjustment mode display of Fig. 1-1 and
3. Receive a broadcast and check if the picture is normal.press the channel button (25) on the remote control to
4. Press the TV/VIDEO button on the remote to set to theselect OLEVEL�.
AV mode. Then perform the above adjustment 1~3.4.Press the VOL. UP/DOWN button on the remote control
until the AC voltmeter is 100 ? 1mV.
2-15: SEPARATION 1, 2
2-18: Confirmation of Fixed Value (step No.)
Please do the method (1) or method (2) adjustment.
Please check if the fixed values of the each adjustment
Method (1)
items are set correctly referring below.
1. Set the multi-sound signal generator for each different L-NO.FUNCTIONRF
ch and R-ch frequency (Ex. L-ch=2KHz, R-ch=400Hz) and04H VCO04
receive the RF.14BRIGHT MAX170
2. Connect the oscilloscope to the pin 6 of CP601 and pin 715BRIGHT MIN90
of CP601.16CONT CENT40
3. Activate the adjustment mode display of Fig. 1-1 and18CONT MIN30
press the channel button (26) on the remote control to20COLOR MAX65
select OSEP 1�.21COLOR MIN01
4. Press the VOL. UP/DOWN button on the remote control to23SHARPNESS35
adjust it until the audio output wave becomes a fine sine28TEST MONO00
wave.29TEST STEREO00
5. Press the CH UP button once the set to OSEP 2� mode.
Then perform the above adjustment 4. |
ACEC
TOSHIBA
