Factory Mode - Voltage Adjustments - EEPROM Data - Initialization - TCL 21 inch Flat CRT TV.
TDA7266 –
TMPA8873CPNG - 24C08 – TDA4864AJ – MSP3425G – TEA1506P (SMPS Control)
Chassis 40-M123SP- MAK1X-M123SP
Chassis 40-M123SP- MAK1X-M123SP
M123SP is NTSC-PAL system model developed
for TCL market specially. In trial run, burn the software to TMPA8873PSNG IC by
OTP method. After the trial run, make the mask, take
care in production. To solve the problems in
production, for the workers participate in alignment, be familiar with the
Alignment Procedure, and be master of the features.
There are 2 operation modes. User mode and factory mode. You can use the Remote control or buttons on the panel to operate in user mode, but only Remote control works in factory mode.
There are 2 operation modes. User mode and factory mode. You can use the Remote control or buttons on the panel to operate in user mode, but only Remote control works in factory mode.
FACTORY MODE or SERVICE MODE
> Press D-MODE button on RC.
> Press OK and CH+ CH- to select the
parameter you want to adjust.
> Press VOL+ VOL- to change the
parameters.
> To quit factory mode, press D-MODE
button (on the right of SURR button).
The factory data changed will be
memorized.
Aging mode - used before the aging before
alignment. The aging could start in factory mode.
Vertical stop mode - used to confirm the screen voltage.
Press INPUT button in factory mode to enter Vertical stop mode.
Then press INPUT button again to
exit.
White balance alignment mode—used for white balance auto
alignment.
Press BUS OFF button near the left
of MTS button to enter White balance alignment mode.
Factory mode - Press SOUND button in factory mode
to initialize the set.
The screen displays WAIT after the initialization;
the screen displays OK and exit the Factory mode automatically.
Then press D-MODE button again.
It will not enable you to enter
Factory mode if you want to enter again; you need operate as follows;
Turn down the volume to 0 press
Volume down button on the panel, press INFO button on the RC meantime.
X rays over voltage protecting circuit
test
TV enter working mode, apply more than 26V DC voltage between two ends of C431.
TV enter working mode, apply more than 26V DC voltage between two ends of C431.
The set should enter protecting
mode or check X rays protecting
circuit.
Initialization
> Under the factory mode press SOUND button.
> Under the factory mode press SOUND button.
> The screen displays WAIT.
> When the screen displays OK the initialization finished. You can enter the
next working procedure.
EEPROM DATA
Note: The items with * are adjustable.
Note: The items with * are adjustable.
The items with BLUE COLOR are work
in CRT parameter.
Other items are not. Do not adjust them.
Use TMPA8873*SANG(13-PA8873-PSP),D-Mode\ G2_FLAG04 posit 00
Use TMPA8873*SBNG(13-PA8873-PSPB),D-Mode\ G2_FLAG04 posit 40
Use TMPA8873*SBNG(13-PA8873-PSPB),D-Mode\ G2_FLAG04 posit 40
TMPA8873
The TMPA8873CPNG is an integrated circuit for a PAL/NTSC TV. A MCU
and a TV signal processor are integrated in a 64-pin shrink DIP package. The
MCU contains 8-bit CPU, ROM, RAM,
I/O ports, timer/counters, A/D converters, an on-screen display controller, remote control interfaces, IIC bus interfaces and the Closed Caption decoder. The TV signal processor contains PIF, SIF, Video, multi-standard chroma, Sync, RGB processors.
Mask ROM: TMPA8873CMNG (ROM size: 32k)
Mask ROM: TMPA8873CPNG (ROM size: 48k)
Mask ROM: TMPA8873CRNG (ROM size: 56k)
Mask ROM: TMPA8873CSNG (ROM size: 64k)
OTP ROM: TMPA8873PSNG (ROM size: 64k)
I/O ports, timer/counters, A/D converters, an on-screen display controller, remote control interfaces, IIC bus interfaces and the Closed Caption decoder. The TV signal processor contains PIF, SIF, Video, multi-standard chroma, Sync, RGB processors.
Mask ROM: TMPA8873CMNG (ROM size: 32k)
Mask ROM: TMPA8873CPNG (ROM size: 48k)
Mask ROM: TMPA8873CRNG (ROM size: 56k)
Mask ROM: TMPA8873CSNG (ROM size: 64k)
OTP ROM: TMPA8873PSNG (ROM size: 64k)
Adjustment
of B+ voltage.
> Receive Philips standard testing pattern to RF input.
> If the VR800 exists in the board, adjust it in STANDARD mode until voltage at following value
> Receive Philips standard testing pattern to RF input.
> If the VR800 exists in the board, adjust it in STANDARD mode until voltage at following value
Model > M123SP >> B+ (v) > 110±2.0
Model > 21E10 >> B+ (v) > 110±2.0
See the circuit diagram =► Full Schematic & PWB