29F-PE550 / 29F-PD570
CHECKING FUNCTION OPERATION (2) (VIDEO & AUDIO) CONTINUED
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE
WAVEFORM OR REMARKS
9
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
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.
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.
SOUND OUTPUT CHECKING
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE
WAVEFORM OR REMARKS
1
Front speaker output
(1) Receive the E-10ch (PAL colour bar).
checking
(2) Set the volume to maximum and set the other sound setting as follow.
Setting item
AV Mode
Equalizer
Surround
AVL
Loudness
(3) Connect the voltmeter to the right speaker terminal and make sure the reading is 7.5 1.0 Vrms
ON
Movie
Maximum
OFF
EPS
3-30
10
HEADPHONE
OUTPUT CHECKING
(1) Receive PAL COLOUR BAR with sound 400Hz, 100% modulation ( 50kHz Dev)
(2) Maximum volume, and check the headphone output with 400kHz sound
and no sound out from speaker.
Ref : OUTPUT level of HEADPHONE is as following
Apx. 500mVp-p
+
_
+
_
