51
VCT 3834 PIN ASSIGN
39
RSW1
OUT
LV
Range Switch for Measuring ADC.Open Drain Pulldown Outputs.The switch is off while the
Cutoff and the whitedrive are measured.
40
RSW2
OUT
LV
Range Switch for Measuring ADC.Open Drain Pulldown Outputs.The switch is off while the
Cutoff is measured.
41
SVM OUT
OUT
VSUPAB
SVM OUT PORT. The current sink as RGB DAC and the output current is the 50% of max at
Zero signal.Ñ> Not used.
42
Rout
OUT
VSUPAB
Analog Red Output
43
Gout
OUT
VSUPAB
Analog Green Output
44
Bout
OUT
VSUPAB
Analog Blue Output
45
VSUPAB/5V
SUPPLY
X
Supply Voltage, Analog Back -End
46
GNDAB
SUPPLY
X
Ground, Analog Back -End
47
VRD
IN
X
DAC Reference Decoupling. This pin is decoupled by external capacitor.Connect 100nF by
parallel 4.7uF.The DAC output current is decided by this voltage. Namely,ItÕs able to shut a Beam
current off by Pulldown TR.
48
XREF
IN
X
DAC Current Reference.External resistance 10§Ú.Connect to near the GND Pin to the utmost.
49
AIN3
IN
GNDs
Analog Audio Signal Input.AC-Coupling.If the register is set up by 0,this pin is usable by Normal
input port Ñ> Not used
50
AIN2
IN
GNDs
Analog Audio Signal Input.AC-Coupling.If the register is set up by 0,this pin is usable by Normal
input port. Ñ> Not used
51
AIN1
IN
GNDs
Analog Audio Signal Input.AC-Coupling.If the register is set up by 0,this pin is usable by Normal
input port. This pin is used by Audio out port in here. Fix an Audio output.
52
AOUT2
OUT
LV
Analog Audio Signal Output. AC-Coupling.The resistance(680§Ù) has to be connected to near
this pin to the utmost.If the register is set up by 0,this pin is usable by Normal input port. Ñ> Not
used
53
AOUT1
OUT
LV
Analog Audio Signal Output. AC-Coupling.The resistance(680§Ù) has to be connected to near
this pin to the utmost.If the register is set up by 0,this pin is usable by Normal input port. This pin
is used by Audio out port in here. Fix an Audio output.
54
ST-BY 3.3V
SUPPLY
X
Stand By 3.3V Vcc
55
GNDS
SUPPLY
X
Ground Stand By
56
XTAL1
IN
X
Crystal input. 20.25MHz crystal is connected.
57
XTAL2
OUT
X
Crystal input. 20.25MHz crystal is connected.
58
RESQ
I/O
X
Reset Input/Output. Active L
59
SCL
I/O ( O )
X
IIC Bus Clock in EEPROM
60
SDA
I/O ( O )
X
IIC Bus Data in EEPROM
61
VCR SCL
I/O ( O )
LV
IIC2 Bus Clock in VCR.
62
VCR SDA
I/O ( O )
LV
IIC2 Bus Data in VCR
63
DATA IN
I/O ( I )
LV
Reveive a DATA from VCR Ñ> Not used
64
VCR CS
I/O ( I )
LV
VCR ENABLE PORT. Ñ> Not used
PinNo.
Pin Name
Type
Connect(if not used)
Descriptions
Summary of Contents for DQ-K2121N-P
Page 22: ...21 CIRCUIT OPERATION X RAY PROTECTION CIRCUIT DQ K2121N P...
Page 23: ...22 CIRCUIT INFORMATION 1 CONNECTION DIAGRAM DQ K2121N D P...
Page 24: ...23 CIRCUIT INFORMATION 2 POWER SCHEMATIC DIAGRAM DQ K2121N D P...
Page 25: ...24 CIRCUIT INFORMATION 3 RECODER A V SCHEMATIC DIAGRAM DQ K2121N D P...
Page 26: ...25 CIRCUIT INFORMATION 4 SERVO SYSCON SCHEMATIC DIAGRAM DQ K2121N D P...
Page 27: ...26 CIRCUIT INFORMATION 5 FBT CRT SCHEMATIC DIAGRAM DQ K2121N D P...
Page 28: ...27 CIRCUIT INFORMATION 6 LOGIC SCHEMATIC DIAGRAM DQ K2121N D P...
Page 29: ...28 CIRCUIT INFORMATION 7 JACK AUDIO SW SCHEMATIC DIAGRAM DQ K2121N D P...
Page 30: ...29 CIRCUIT INFORMATION 8 MULTIPLEXER SCHEMATIC DIAGRAM DQ K2121N D P...
Page 31: ...30 CIRCUIT INFORMATION 9 MONITOR A V SCHEMATIC DIAGRAM DQ K2121N D P...
Page 55: ...54 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW...
Page 56: ...55 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW...
Page 57: ...56 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW...
Page 58: ...57 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW...
Page 59: ...58 DISASSEMBLY...
Page 78: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp...
