Daewoo DTH-14Q1FS Service Manual page 13

PIN NAME/(ABBREV)
14 Vdd
15 KEY SCAN OUT 1
& CLOCK
(R23)
16 KEY SCAN OUT 2
& DATA
(R22)
17 ENABLE
(R20/PCL)
18 AFC
(R21/AFC IN)
19 OSC in
20 OSC out
21 /H-Sync
(HD)
22 /V-Sync
(VD)
23 R(R60/OSD R)
24 G(R61/OSD G)
25 B(OSD B)
26 OSD Ys
27 50/60 IN
(R13)
28 /C.IDENT IN
(R12)
29 OCP IN
(R11)
30 SCREEN OUT
(R10)
31 VIDEO MUTE OUT
FUNCTION
+5V
· KEY MATRIX COLUMN 1
· TUNER CLOCK & EEPROM CLOCK
· KEY MATRIX COLUMN 2
· TUNER DATA & EEPROM DATA
· TUNER ENABLE
· AFC voltage from MAIN IC(LA7688) : DC 0 ~Vdd
CENTER : 2.5V
· OSD CLOCK
· SYNC. signal for OSD H. position.
· 0~5V PULSE/Active LOW INPUT
· SYNC. signal for OSD V. position.
· 0~5V PULSE/Active LOW INPUT
· Active "HIGH" OUTPUT
· Dot pattern OF OSD
· 3-SYSTEM SWITCHING
· 50Hz: LOW(PAL-N) , 60Hz: HIGH (PAL-M, NTSC-M)
· 3-SYSTEM SWITCHING
· "LOW" (INPUT) signal detected with NO-COLOR.
· OVER CURRENT PROTECTION INPUT: active HIGH
· TV POWER turns OFF when HIGH signal detected for
10ms.
· The u-COM observe this pin immediately after
POWER ON.
· HIGH signal OUTPUT indicating SCREEN adjustment.
· Goes HIGH when REMOCON KEY;9DH detected.
· Toggled when 9DH detected.
· Active LOW, Normal : HIGH
11
REMARK
CMOS
PUSH PULL
A/D CONV
4BIT
CMOS
CMOS
CMOS
CMOS
CMOS