Service manual

24
LC-20VM2
LC-121M2E
LC-150M2E
Terminal No. Symbol I/O Voltage Function block Function
49 GND O 3V
50 VDD O 3V
51 HDCK O 3V LCD TIMING Not used IOL=3.0mA
52 OCK O 3V LCD TIMING SOURCE driver clock IOL=3.0mA
53 GND
54 OOB7 O 3V RGB gradation process BLUE signal output (MSB)
55 OOB6 O 3V RGB gradation process
56 OOB5 O 3V RGB gradation process
57 OOB4 O 3V RGB gradation process
58 OOB3 O 3V RGB gradation process
59 OOB2 O RGB gradation process BLUE signal output (LSB)
60 GND
61 REF_CKI I 3V Reference clock input
62 VGA_PDP O 5V Phase comparison waveform for PC
63 VGA_CLK I 5V Clock for PC
64 VGA_HS O 5V Horizontal synch signal for PC_PLL
65 GND
66 SPLS TO 3V LCD TIMING Sampling start signal (Note 1)
67 SPRS TO 3V LCD TIMING Sampling start signal (Note 1)
68 LBR O 3V LCD TIMING Horizontal scan direction switching signal
(Note 1)
69 HGO O 3V LCD TIMING SOURCE driver timing signal
70 POWER O 5V LCD TIMING Power signal
71 I 5V Common
72 GND
73 U/D O 5V An up-down inversion signal
74 TM1 O 3V
75 TM2 O 3V LCD TIMING Gate U/D
76 VDD 3V
77 GND
78 R7 I 3V RGB gradation process RED input (LSB)
79 R6 I 3V RGB gradation process
80 R5 I 3V RGB gradation process
81 R4 I 3V RGB gradation process
82 R3 I 3V RGB gradation process
83 R2 I 3V RGB gradation process
84 R1 I 3V RGB gradation process
85 R0 I 3V RGB gradation process RED signal input (MSB)
86 GND I 3V
87 G7 I 3V RGB gradation process GREEN signal input (LSB)
88 G6 I 3V RGB gradation process
89 G5 I 3V RGB gradation process
90 G4 I 3V RGB gradation process
91 G3 I 3V RGB gradation process
92 G2 I 3V RGB gradation process
93 G1 I 3V RGB gradation process
94 G0 I 3V RGB gradation process GREEN signal input (MSB)
95 TM3 O
96 TM4 O
97 GND
98 TST8 I 3V Test signal(Internal PD)