Service manual

DXZ955MC
DXZ956MC
-6-
EXPLANATION OF IC
051-2056-00 TB2913HQ Quad Bridge Audio Amplifier
051-3351-90 BA033CC0FP-E2 Positive Voltage Regurator (3.3V)
051-6080-00 LZ9FD51A TFT LCD Controller
Terminal Description
pin 1 : D CLK : IN : The data clock pulse input.
pin 2 : TEST : O : For the test.
pin 3 : RED 0 : O : The red signal input.
pin 4 : RED 1 : O : The red signal input.
pin 5 : RED 2 : O : The red signal input.
pin 6 : RED 3 : O : The red signal input.
pin 7 : RED 4 : O : The red signal input.
pin 8: RE D 5 : O : Parallel Red data output.
pin 9: GND : - : Ground.
pin 10: VDD : - : Positive voltage supply.
pin 11: GREEN 0 : IN : The green signal input.
pin 12: GREEN 1 : IN : The green signal input.
pin 13: GREEN 2 : IN : The green signal input.
pin 14: GREEN 3 : IN : The green signal input.
pin 15: GREEN 4 : IN : The green signal input.
pin 16: GREEN 5 : IN : The green signal input.
pin 17: TEST : IN : For the test.
pin 18: BLUE 0 : IN : The blue signal input.
pin 19: BLUE 1 : IN : The blue signal input.
pin 20: BLUE 2 : IN : The blue signal input.
pin 21: BLUE 3 : IN : The blue signal input.
pin 22: BLUE 4 : IN : The blue signal input.
pin 23: BLUE 5 : IN : The blue signal input.
pin 24: TEST CK : IN : The clock pulse input for the test.
pin 25: H R V E : IN : The horizontal reversing setting terminal.
pin 26: ENAB : IN : The horizontal display beginning position
setting terminal.
pin 27: VDD : - : Positive voltage supply.
pin 28: GND : - : Ground.
pin 29 : TSTR : IN : The initial reset input.
pin 30: RE V 1 : O : The signal output terminal for the common
electrode signal making.
pin 31 : REV V 0 : O : The output terminal for the reference volt-
age making.
pin 32: GND : - : Ground.
pin 33: SPR : O : The start signal output terminal for the
source driver.
pin 34 : LBR : O : The output terminal of signal that controls
the horizontal reversing display.
pin 35: SPL : O : The starting signal output to the source
driver.
pin 37 : Clock Out : O : Clock Out.
pin 38: GND : - : Ground.
pin 39: O BLUE 5 : O : The blue signal output.
pin 40: O BLUE 4 : O : The blue signal output.
pin 41: O BLUE 3 : O : The blue signal output.
pin 42: O BLUE 2 : O : The blue signal output.
pin 43: O BLUE 1 : O : The blue signal output.
pin 44: O BLUE 0 : O : The blue signal output.
pin 45: VDD : - : Positive voltage supply.
pin 46: GND : - : Ground.
pin 47 : O GR EE N 5 : O : The green signal output.
pin 48 : O GR EE N 4 : O : The green signal output.
pin 49 : O GR EE N 3 : O : The green signal output.
pin 50 : O GR EE N 2 : O : The green signal output.
pin 51 : O GR EE N 1 : O : The green signal output.
pin 52 : O GR EE N 0 : O : The green signal output.
pin 53: GND : - : Ground.
pin 54 : O R E D 5 : O : The red signal output.
pin 55 : O R E D 4 : O : The red signal output.
pin 56 : O R E D 3 : O : The red signal output.
pin 57 : O R E D 2 : O : The red signal output.
pin 58 : O R E D 1 : O : The red signal output.
pin 59 : O R E D 0 : O : The red signal output.
pin 60: GND : - : Ground.
pin 61 : CLS : O : The clock pulse output for the gate driver.
pin 62: SPS : O : The starting pulse output for the gate driv-
er.
pin 63: VDD : - : Positive voltage supply.
pin 64: GND : - : Ground.
pin 65 : UBL : O : The output terminal of signal that controls
vertical reversing display for the gate driv-
er.
pin 66: V RV E : IN : The vertical reversing setting terminal.
pin 67: MODE : O : The output terminal to set the gate driver's
output mode.
pin 68: NU : - : Not in use.
pin 69: TEST : IN: For the test.
pin 70: REM : IN : The reset signal input terminal to make the
mode signal.
pin 71: HS : IN : The horizontal sync counter.
pin 72: VS :IN : The input terminal of the vertical synchro-
nizing signal.
Table 1. The horizontal scanning setting
H RVE input SPR output SPL output LBR output
( pin 25 ) ( pin 33 ) ( pin 35 ) ( pin 34 )
High voltage High-Z start pulse H
Low voltage start pulse High-Z L
Table 2. The vertical scanning setting
V RVE input UBL output
( pin 66 ) ( pin 65 )
High voltage H
Low voltage L
051-7107-90 TC4S81F-TE85L,F Single 2-inputs AND GATE
TAB
P-GND 2
-OUT 2
STNBY
+OUT 2
Vcc
-OUT 1
P-GND 1
+OUT 1
SVR
IN 1 IN 2
S-GND
IN 4 IN 3
AC GND
+OUT 3
P-GND 3
-OUT 3
Vcc
+OUT 4
MUTE
-OUT 4
P-GND 4
Diagnostics
1 2 3 4 5 6 7 8 9
10
11
12 13 14 15 16 17 18 19 20 21 22 23 24 25
-
+
-
+
-
+
-
+
H = Power ON L=MuteON
L = Clipping
3
2
1
OUTPUT
N.C.
VCC
GROUND
1
2
3
5
4
VDD
GND
pin 36: LP : O : The output terminal of the data transmis-
sion signal for the source driver.
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