Service manual CHASSIS 2112-Series EC7-A
24
Location COMPONENTS THAT ARE ANNULLED COMPONENTS THAT ARE ADDED
Part No. DESCRIPTION Part No. DESCRIPTION
R262 0790701106
R.M.G. SMD 0 Ω 1/10W.
0790251003
R.M.G. SMD 10 KΩ 5% 1/10W. 0805
R928 0790251003
R.M.G. SMD 10KΩ 5% 1/10W
0790749402
R.M.G. SMD 6,8 KΩ 5% 1/10W. 0805
R929 0790251003
R.M.G. SMD 10KΩ 5% 1/10W
0790749402
R.M.G. SMD 6,8 KΩ 5% 1/10W. 0805
R931 0790151500
Carbon Res. 10KΩ 5% 1/6W
0790149405
Carbon Resistor 6,8 KΩ 5% 1/6W.
SF1400 0090405101 SAW Filter L9360M
SF250 0090413600 Ceramic Filter MKT40.4MA110P
TU250 0850102617 Tuner UV1315/AI-2 0850103201 Tuner UV1315/S I-2
After making the modification it is necessary to enter the Service Menu, STANDARD sub-menu, in order to change
options SECAM BG and FRANCE to “ON”. See Service Menu.
To be able to make the semiautomatic or manual tuning in SECAM L system, it is necessary that the user selects "
System FRANCE " in the Tuning Menu before starting the search, since the detection of this system is not
automatic. If the automatic tuning search is made, the TV set will search all the broadcastings in two sweepings,
one of them with " System FRANCE ".
6.2 NTSC M (NTSC 3, 579545) adaptation.
In order to form a TV set so that it can receive signal NTSC M (NTSC3, 579545) it must make the following
modification:
PCB GENERAL
Loc. COMPONENTS THAT ARE ANNULLED COMPONENTS THAT ARE ADDED
Part No. DESCRIPTION Part No. DESCRIPTION
X401 0090122409 Quartz Crystal 3,579545 MHz.
C436 0230150229 Ceramic SMD 18 PF. 1% 50V.
After making the modification, it is necessary to enter the Service Menu, STANDARD sub-menu, to change option
NTSC M to “ON”. Now, TV set is prepared to receive NTSC M signals by means of euroconnector or frontal AV (not
by means of aerial).
6.3 Procedure of substitution of microprocessor IC100.
The run pilot production began with micros version OTP (One Time Programmable). These micros are different
from those of the mask. They are clearly identifiable, since version OTP incorporates a sticky label.
The basic difference between both types is: the OTP the level of RGB outputs is 0.2V higher than the rest of
versions.
6.3.1 TV sets without TXT: OTP replacement with a mask.
The microprocessor OTP has 56 pins, whereas the one of the mask has 42 pins. In the silk screen is indicated
clearly how 42 pins micro must be mounted.
In case of damaging a micro OTP (version without TXT) it should be replaced by another type mask. For that, it is
necessary to make the following changes:
GENERAL PCB
Loc. COMPONENTS THAT ARE ANNULLED COMPONENTS THAT ARE ADDED
Part No. DESCRIPTION Part No. DESCRIPTION
C100 0230600504 Cer. SMD 100 nF. 10% 25V.
C107 0230600603 Cer. SMD 100nF.+80-20% 25V
C117 0790701106
R.M.G. SMD 0 Ω 1/10W.
0230160327 Ceramic SMD 22 PF. 1% 50V. 0805
C118 0230440125 Ceramic SMD 4700 PF.10% 50V.0805
C119 0230440125 Cer. SMD 4700 PF.10% 50V.
C120 0230160327 Cer. SMD 22 PF. 1% 50V.
D103 0360606511 SMD Diode Zener BZT55C2V7 0790701106
R.M.G. SMD 0 Ω 1/10W. 0805
IC100 0360516405 I.Circuit ST92T195B7B1/EBL 0360516702 Integrated Circuit ST92185B1B1
R107 0790248009
R.M.G. SMD 5,6KΩ 5% 1/10W.
R123 0790248009
R.M.G. SMD 5,6 KΩ 5% 1/10W. 0805
To Next Page
Loading...
