LG 901B, Service Manual, Page: 2 / 31

1. PICTURE TUBE
Size : 19 inch (Flat Slot Mask)
DefIection Angle : 90°
Neck Diameter : 29.1 mm
Phosphor : P22
Slot Pitch : 0.26 mm
Face Treatment : Anti-Glare
2. SIGNAL
2-1. Horizontal & Vertical Sync
1) Input Voltage Level : Low=
≤
0.8V, High=
≥
2.1V
2) Sync Polarity : Positive or Negative
2-2. Video Input Signal
1) Voltage Level : 0 ~ 0.7 Vp-p
a) Color 0, 0 : 0 Vp-p
b) Color 7, 0 : 0.467 Vp-p
c) Color 15, 0 : 0.7 Vp-p
2) Input Impedance : 75
Ω
3) Video Color : R, G, B Analog
4) Signal Format : Refer to the Timing Chart
2-3. Signal Connector
15 Pin D-Sub Connector
2-4. Scanning Frequency
Horizontal : 30 ~ 98 kHz
Vertical : 50 ~ 160 Hz
3. POWER SUPPLY
3-1. Power Range
AC 100~240V, 50/60HZ, 2.5A Max
AC 200~240V, 50Hz, 1.5A Max.(PFC version)
3-2. Power Consumption
4. DISPLAY AREA
4-1. Active Video Area :
• Max Image Size - 365.8 x 274.3mm (12.91" x 9.61")
• Preset Image Size - 350 x 262 mm (12.20" x 9.06")
4-2. Display Color : Full Colors
4-3. Display Resolution : 1600 Dots x 1200Lines
4-4. Video Bandwidth
: 203MHz
5. ENVIRONMENT
5-1. Operating Temperature: 0°C ~ 40°C (32°F ~ 103°F)
(Ambient)
5-2. Relative Humidity : 8% ~ 80%
(Non-condensing)
5-3. Altitude : 10,000 ft
6. DIMENSIONS (with TILT/SWIVEL)
Width : 448 mm (17.64")
Depth : 470 mm (18.50")
Height : 454 mm (17.87")
7. WEIGHT (with TILT/SWIVEL)
Net Weight : 19.0 kg (41.89 lbs)
Gross Weight : 22.5 kg (49.61 lbs)
CONTENTS
SPECIFICATIONS
- 2 -
SPECIFICATIONS ................................................... 2
SAFETY PRECAUTIONS ........................................ 3
TIMING CHART ....................................................... 4
OPERATING INSTRUCTIONS ................................ 5
CONTROL LOCATIONS ......................................... 6
WIRING DIAGRAM ................................................. 7
DISASSEMBLY ....................................................... 8
BLOCK DIAGRAM ................................................... 9 DESCRIPTION OF BLOCK DIAGRAM................... 10
ADJUSTMENT ...................................................... 12
TROUBLESHOOTING GUIDE .............................. 14
EXPLODED VIEW.................................................. 21
REPLACEMENT PARTS LIST .............................. 23
PIN CONFIGURATION .......................................... 29
SCHEMATIC DIAGRAM ......................................... 30
PRINTED CIRCUIT BOARD................................... 32
MODE
MAX
NORMAL (ON)
STAND-BY
SUSPEND
OFF
H/V SYNC
ON/ON
OFF/ON
ON/OFF
OFF/OFF
POWER CONSUMPTION
less than 110W
less than 83W
less than 8W
less than 8W
less than 3W
LED COLOR
GREEN
GREEN
AMBER
AMBER