Service manual

DV-L70U
9-26
Pin No. I/O Terminal name Operation function Remarks
31 I ST/MT Input for destination setting L: Japan
32 – GND GND
33 – NC Not used. (Pull-up)
34 O MONO Not used.
35 I AFT AFT voltage inputFrom LCD decoder IC From TV tuner
36 O PDET Battery monitor AD input
37 I AGC AGC voltage input From TV tuner
38 I VOL Not used.
39 I POW IN Power button input
40 I IREM Remote control input From remote control light receiving unit
41 – NC
42 O MODW Panel selection output (1) To LCD control IC
43
44 MODN Panel selection output (2)
45 O VSW Not used.
46 O MIRST DVD microcomputer reset output To DVD system computer interface IC
47 O DVD P DVD circuit power control To DVD power switch circuit
48 I LCD SW Liquid crystal panel open/close interrupt From liquid crystal open/close detection switch
49 O LCD H Backlight ON/OFF control From E
2
PROMTo liquid crystal inverter unit
50 – NC
51 – NC
52 O LED1 LED control (green) To LED lighting circuit
53 O AV-S TD/DVD video/audio selection output To video SW IC/audio SW IC
54 O LED2 LED control (red) To LED lighting circuit
55 O AV-P TD/DVD video/audio selection output To video SW IC/audio SW IC
56 O DEF Defeat output
57 O EPCS E
2
PROM chip select To E
2
PROM
58 O DACS DAC chip select To adjustment DAC IC
59 O FLOF Not used.
60 O IN H External input control To video SW IC/audio SW IC
61 I PSW Not used.
62 O SMUTE Audio mute output To audio output circuit
63
64 – NC
65 O PMUTE Video mute output To LCD decoder circuit
66 I ACL ACL input From 2VREG/reset generation IC
67 – CLI System clock input Oscillator
68 – CLO System clock output Oscillator
69 T1 Test input1 GND
70 T2 Test input2 GND
71 – GND Reference potential GND
72 – GND Reference potential GND
73 – VDD Power supply 4.5~5.5V
74 – OSCI Sign clock input To OSD oscillation coil
75 – OSCO Sign clock output To OSD oscillation coil
76 B Blue sign output To LCD decoder IC
77 G Green sign output To LCD decoder IC
78 R Red sign output To LCD decoder IC
79 FMCS Not used.
80 – NC.