Sharp 34N-WF5H, Service Manual

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34N-WF5H
6 Main Y signal level
adjustment
(R/C, JWS address
473) 1. Connect the oscilloscope probe between TP1801
and GND.
2. In the twin-picture mode, receive the NTSC stand-
ard half color bar signal for the left-side screen (Main
Screen).
3. Using the VOLUME UP/DOWN keys in the JWS
address 473, adjust the waveform amplitude of the
main luminance signal at TP1801 to 0.7±0.05 Vp-p.
Note: The amplitude must be measured from the
black level to the white peak.
0.8Vp-p
7 Main-screen tint
adjustment
(R/C, JWS address
162) Signal: Good local channel
Adjusting point:
Remote Control
(JWS address 162)
Specification:
Normal flesh tones
1. Set the AV mode to "STD-1".
2. In the twin-picture mode, receive the good local
channel for the left-side screen (Main screen).
3. Enter the JWS address 162. Using the VOLUME
UP/DOWN keys, visually adjust the tint to the best.
4. Switch the channels. Make sure the tint is opti-
mum on other channels.
No. AdjustingPoint Adjusting Conditions Adjusting Procedure
5 3D Y/C separation
level adjustment
(R7000: Y/C3D
Unit) 1. Receive the NTSC standard half color bar signal.
2. Connect the oscilloscope probe between pin (8)
of SC3203 and GND.
3. Adjust R7000 so that the waveform amplitude of
the luminance signal at pin (8) of SC3203 should
be 0.8±0.05 Vp-p.
Note: The amplitude must be measured from the
black level to the white peak.
8 Main-screen color
adjustment
(R/C, JWS address
164) Signal: Good local channel
Adjusting point:
Remote Control
(JWS address 164)
Specification:
Normal color level
1. Take the same steps 1. and 2. for the tint adjust-
ment.
2. Enter the JWS address 164. Using the VOLUME
UP/DOWN keys, visually adjust the color to the
best.
3. Switch the channels. Make sure the color is opti-
mum on other channels.
Signal: NTSC standard half
color bar signal
Adjusting point:
(R7000: Y/C 3D Unit)
Specification:
0.8 ±0.05 Vp-p
Signal: NTSC standard half
color bar signal
Adjusting point:
Remote Control
(JWS address 473)
Specification:
0.7 ±0.05 Vp-p