Teac 3290I, Service Manual

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TCL-Thomson Electronics R&D Center (Shen
’
Zhen Lab)
Page 3 of 12
TCL-Thomson Electronics
These drawings and specifications are the property of TCL-Thomson Electronics and shall not be reproduced or copied or
used as the basis for the manufacture or sale of apparatus or devices without permission.
1.GENERAL
1.1 Common Information
1.1.1 Use isolating transformer with low internal resistance.
1.1.2 Mains voltage is 90-260 V AC, unless otherwise stated.
1.1.3 All voltages and waveforms mentioned are with respect to Ground. Do not use heat-sink
as Ground.
1.2 How to enter factory Mode (Service menu, service mode)
1.2.1 Certain alignment procedures need to enter Factory Mode (Service Menu). There
are two ways to access factory mode:
One is :
A. Press and hold the VOLUME DOWN key tightly on the unit until minimum level
B. Don’t release the VOLUME DOWN key on the unit
C. Then press the CAPS key in 3 times on the RC
The other is:
Press “Service “ Key on the factory RC. (Please noted the “D-mode” key is the invalid
shortcut key if “bit-0” of “mode 1” is at “1”.)
1.2.2 All system data in Factory Mode of “Key 8 & Key 9” are not adjustable when servicing,
otherwise, the set will work abnormally.
1.2.3 It is suggested to disable the Service key before the set leave the factory.
Navigation:
- Press “ Vol +” "Vol- " key to select option;
- Press “ P- ” “ P+ ” key to adjust or select option.
- Press “0-9” “Notebook” “Favorite” “Sleep” on the RC as the shortcut key
to access factory menu.; All change in factory data will be saved in EEPROM
automatically
- Press “GUIDE” key on factory RC to cut off the I2C control from the CPU to
other ICs. This is only valid during automatic adjustment of white balance.
1.3 A few special modes:
1.3.1 Aging Mode is used before set alignment. It would operate in factory mode;
1.3.2 Vertical Stop mode is used to confirm the screen voltage. Press “Mute” key in
factory mode and repress “ mute” key to exit.
1.3.3 White balance alignment mode
1.3.4 Factory Mode (Initialization)
In factory mode, press RECALL button to initialize the FACTORY-OUT status.
Volume: 30 , PG password: 0000 , Favorite channel: ch1/ch2/ch3 ,
channel lock: disable, Picture mode: normal ,
Color temp: normal , calendar :01-08-2004