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No!
Symbol
Function
No|
Symbol
Function
21
' } ground supply input
32
oscillator output
OSD red output
power-on reset input/output
OSD green output
34| SND1
horizontal coincidence input
24|
BLUE
| OSD blue output
RMOT | remote control input
25 | FBL
OSD fast blanking output
36; VTR
VTR time constant control output
26 | HSYNC | horizontal synchronization input
37
Sys
system output 1
27 | VSYNC | vertical synchronizatin input
38}
SysO.
| system output 0 . -
28 | DOSCOUT!
LC oscillator output for OSD
39 | SCL
l2C - bus clock signal input/output
29}
IDENT | LC oscillator input for OSD
40|
SDA
l2C - bus data signal input/output
30
"| test input; connected to ground
41 | STDBY | Standby/On control input/output
31 |
| oscillator input; 10 mz crystal
42
+5V supply voltage input
Notes:
1) These pins are read at "cold start", they define the configuration/options of the TV-system.
2) These pins can command a solenoid to switch-off AC-mains supply.
6.ALIGNMENT and ADJUSTMENT
- This Models has only one adjustment -
1.GENERAL INFORMATIONS
All the adjustments are thoroughly checked and corrected
when the receiver leaves the factory. Therefore the
receiver should operate normally and produce proper
colour and B/W picture upon installation. However the
minor service adjustments may be required depending on
the particular location in which the: receiver is operated.
This receiver is shipped completely in carboard carton.
Carefully draw out the carton and remove all the packing
materials. Puig the power cord into a convenient two pin
power outlet. Turn the receiver ON and adjust the fine
tuning for the best picture detail. Check and adjust all the
customer controls such as BRIGHTNESS,
CONTRAST
and COLOUR
Controls to obtain natural colour or B/W
picture.
2.AUTOMATIC DEGAUSSING
A degaussing coil is mounted around the picture tube so
that the external degaussing after moving the receiver is
nomaily unnecessary, providing the receiver-is properly
degaussed
upon installation. The degaussing
coil
operates for about 1 second after the power to the
receiver is switched ON. If the set is moved or faced in a
different direction, the power switch must switch off at
least 120 minutes in order that the automatic degaussing
circuit is operated properly. :
¢
lf the chassis or parts of the cabinet becomes
magnetized and cause poor colour purity, use an external
degaussing coil.
,
Slowly move the degaussing coil around the face-plate of
the picture tube, the sides and the rear of the receiver
and slowly withdraw the coil to the distance of about 2m
before disconnecting
it from the AC source. If the colour
shading still persists, perform the COLOUR
PURITY
ADJUSTMENT
and CONVERGENCE
ADJUSTMENTS
procedures, as mentioned later.
3.HIGH VOLTAGE CHECK
CAUTION : There is no HIGH VOLTAGE
ADJUSTMENT on this chassis. But B+
power must be adjusted in +125V
under
the full colour bar pattern and
nomal picture control level. -
1)Connect an accurate high voltage meter to the
second
anode of the picture tube.
2)Turn on the receiver. Set the BRIGHTNESS and
CONTRAST control to minimun(Zero beam).
3)The high voltage should be measured less.
4)Rotate the BRIGHNESS and CONTRAST control to
the both extremes to be sure. The high voltage does
not exceed the limit under any conditions.
4. HORIZONTAL PHASE ADJUSTMENT
If you want to move the center of picture, adjust
HORIZONTAL phase control(VR401)
46-
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