Matching Check With Other Instruments; Video: 1 Input Terminal Matching Check; Video:2 Input Terminal Matching Check; Video:3 Input Terminal Matching Check - Hitachi 36UX59B Service Manual

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IX. MATCHING CHECK WITH OTHER INSTRUMENTS
1. VIDEO:1 INPUT TERMINAL MATCHING CHECK
Adiustment Preoaration
(1)
(2)
(3)
Input the video signal to VIDEO 1 IN terminal. The
video signal level should be within 120.2 Vp-p (75
ohm termination) with 100% white
signal at this time.
Input the audio signal to the AUDIO 1 IN
terminal. The audio signal should be 500mt20m
Vrms at this time. (Connect VCR or TV tuner.)
Connect an audio AMP to the AUDIO OUT
terminals. (Or connect AUDIO IN terminals of a
standard monitor instead.)
Adjustment Procedure
(1) Check that the set receives signal then select the
Input mode by pressing the INPUT (FUNCTION) but-
ton of front panel of the set or remote control.
(2) When external input is performed, the video and
audio should not be abnormal.
The 100% white signal that RF input receives
should be as bright as the video signal lVp-p (75
ohm termination).
As for the sound, when the 100% modulation that
RF input receives is 25KHZ, DIV., the sound level
should be as much as external audio signal (500
Vrms) level.
(3) Refer to the next item (IV, 2-2).
2. VIDEO 2 INPUTTERMINAL MATCHING CHECK
Adjustment Preoaration
(1) Same as 1 (1).
Adiustment Procedure
(1) Check that the set receives signal at INPUT 2 mode.
3. VIDEO:3 INPUT TERMINAL MATCHING CHECK
(36/32UX596 MODELS)
Adjustment Preparation
(1) Same as1 (1)
Adiustment Procedure
(1) Check that the set receives signal at INPUT 3
mode.
4. SIN:1 INPUT TERMINAL MATCHING CHECK
Adiustment Preparation
(1) Connect the video/chroma signal to SIN:1
terminal.
j MSLXU
(2)
Connect the sound signal to AUDIO:1 input
terminals.
Adjustment Procedure
(1) Check that the set receives S-Video signal at
INPUT 1 mode.
5. SIN:2 INPUTTERMINAL MATCHING CHECK
(36/32UX59B AND 36/32FX49B MODELS)
Adjustment Preparation
(1) Connect the video/chroma signal to SIN:2
terminal.
(2) Connect the sound signal to AUDIO:2 input
terminals.
Adjustment Procedure
(1) Check that the set receives S-Video signal at
INPUT 2 mode.
6. COMPONENT INPUT CHECK
(36/32UX59B MODELS)
Adiustment Preparation
(1) Connect the component signal to component
terminals.
(2) Connect the sound signal to AUDIO:2 input
terminals.
Adiustment Procedure
(1) Check that the set receives component signal at
INPUT 2 mode.
(2) Check that Recall OSD shows "Y-CRCR"
7. AUDIO OUT LEVEL CHECK
Adjustment Preparation
(1) Input the same audio signal at item l(2) to
AUDIO IN terminal (L). At this time, connect
nothing to R terminal.
(2) Input the same audio signal as item l(2) to
AUDIO:1 IN terminal (R). At this time, connect
nothing to L terminal.
(3)
Check that the normal sound is output from both
sides of the speakers when signal in item (1) is
input.
(4) Check that the normal sound is output from only
the right (R) speaker when signal in item (2) is
input.
Adjustment Procedure
(1) Check that the audio output of AUDIO AMP con-
nected to AUDIO HiFi OUT terminal changes
according to the "VOLUME" of the set.
(2) Confirm that the output level of item (1) should
be 1 Vrms (2.8 Vp-p)+20%. (Above level is
equivalent to VOL. MAX. 100% modulated signal
input.)
X. SAFETY CHECK
1. POLARITY CHECK
This check is performed according to UL stan-
dard requirement. There should be electricity
between AC Power Cord and Chassis Earth.
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