Sharp 9Q-FG1A - Page 18

29Q-FG1A/1F/1N/1S/1U
3 – 15
CHECKING FUNCTION OPERATION (2) (VIDEO & AUDIO) CONTINUED
NO ADJUSTMENT POINT ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR REMARKS
9 SUB VOL (1) Receive PAL color bar signal. Signal content : 400 Hz 100% Mod. (Note *)
Note *
(BUS ADJUSTMENT) Make sure the sound setting is :-
(2) Normalize TV using remote control. Set Volume Max.
*MOVIEMODE
(3) Select
SUB-VOL (61)
in Adjustment mode. Then demute sound using remote control
* SURROUND : ONI
*TREBLE:+6
(4) Connect multimeter probe to Right Speaker terminal.
*BASS:+4
* BALANCE : 0
(5) Adjust the SUB-VOL data to make indication in the range
8.3~9.0 Vrms
*LOUDNESS:ON
Note : If the reading initially already in the stated range, no adjustment is needed.
10 SOUND SYSTEM (1) Receive "PAL-D/K" signal, press the "SOUND SYSTEM"
to select B/G, I. Check the sound output is not working properly.
Select D/K and check the sound output to make sure it is working properly.
(2) Receive "PAL-I" signal, press the "SOUND SYSTEM"
to select B/G, D/K. Check the sound output is not working properly.
Select I and check the sound output to make sure it is working properly.
(3) Receive "PAL-B/G" signal, press the "SOUND SYSTEM"
to select I, D/K. Check the sound output is not working properly.
Select B/G and check the sound output to make sure it is working properly.
11 HEADPHONE (1) Receive PAL COLOR BAR with sound 400 Hz ,100% modulation (± 50kHz Dev)
OUTPUT CHECKING
(FOR MODEL WITH (2) Maximum volume , and check the headphone output with 400kHz sound
HEADPHONE FEATURE) and no sound out from speaker .
Ref : OUTPUT level of HEADPHONE is as following
Apx. 500mVp-p
12 NOISE MUTE (1) Receive "PAL COLOUR BAR" signal.
CHECKING
(2) Turn up the volume control to maximum, make sure the sound is
heard from the speakers. Then put the unit in no signal state.
(3) Check the sound mute is effective.
(4) Finally turn sound level of CTV to minimum.
13 M.P.IN 1) Turn up the volume control to maximum, make sure the sound is heard from speakers
CHECKING
(FORMODELWITH 2)PluginstereocableinM.P.Interminal.
M.P.IN FEATURE)
3) '
M.P.IN
' OSD will appear at bottom right corner TV screen, RF channel sound will be switched to
M.P.In sound.
4) Check the sound is normal.
PROTECTOR OPERATION CHECK
NO ADJUSTMENT POINT ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR REMARKS
1 H.V Protector (1) Receive E-5ch (Monoscop pattern).
Ref : Apx.13.3V.
(2) Connect the bias box to the cathode side (R607) of D604.
(3) Set the voltage of the bias box at 10V, and verify that the protector does not operate.
(4) Set the voltage of the bias box at 18V, and verify that the protector operate.