A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate. LW15E23CB/LW17E24CB...
Use only an anti-static solder removal device. Some brushing clothes together, or lifting your foot from solder removal devices not classified as “anti-static” a carpeted floor can generate enough static can generate electrical charges sufficient to damage electricity to damage an ESD. ESDs. LW15E23CB/LW17E24CB...
GND-Green GND-Blue GND-Blue GND-Blue No Connection No Connection Not Used GND-Sync./Self Test GND-Sync./Self Test GND-Sync./Self Test DDC Data DDC Data DDC Data Horizontal sync. H/V-Sync. Not Used Vertical sync. Not Used Not Used DDC Clock DDC Clock DDC Clock LW15E23CB/LW17E24CB...
B : Horizontal sync width O : Frame time total P : Vertical sync width C : Back porch D : Active time Q : Back porch R : Active time E : Front porch S : Front porch LW15E23CB/LW17E24CB...
CONFIDENTIAL 3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LW15E23CB/LW17E24CB monitor. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1 Disassembly Cautions:1. Disconnect the monitor from the power source before disassembly.
Page 10
CONFIDENTIAL 3 Disassembly and Reassembly 4. Lift up the rear cover until it opens completely. 3-2 Reassembly Reassembly procedures are in the reverse order of dissasembly procedures. LW15E23CB/LW17E24CB...
6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts. 7. To protect aganist shock hazard, use an isolation transformer. LW15E23CB/LW17E24CB...
Page 12
3. PC Auto Color : Used to adjust PC image color. 4. Reset : Used after all adjustments. 5. Other functions shown are not service related. 4-2-3 Adjustment Sequence for ROM change only EEPROM Clear TV auto color PC auto color RESET (For ROM change only) LW15E23CB/LW17E24CB...
Does proper DC 14V appear at Check IC11. Pin 1 of IC11? Does proper DC 3.3 V appear at Check IC14. Pin 3 of IC14? Does proper DC 2.5 V appear at Check IC109 and IC17. Pin 4 of IC109 and IC17? Check IC23. LW15E23CB/LW17E24CB...
Page 14
X21? Does the clock pulse appear at output of <RA35~RA39, RA310>15” Check related circuit of IC32. <RA35~RA39, RA310, RA313~318>17”? Does the clock pulse appear at Replace <R611~R620>15” output of <R611~R620>15” <R611~R620, R61~R69, R610>17”. <R611~R620, R61~R69, R610>17”? Replace LCD Panel. LW15E23CB/LW17E24CB...
Page 15
Check IC401 (VSP9407) RA33, RA34, RA311, RA312? and related circuit. Does signal appear at <RA35~RA39, RA310>15” Check IC32 and related circuit . <RA35~RA39, RA310, RA313~RA318>17” of related IC32? Check IC61, 62 and <R611, 612, ~R620>15” <R611, 612, ~R620, R61~R69, R610>17”. LW15E23CB/LW17E24CB...
Page 16
CN26(VCR connector). (VCR sound) of IC53 (MSP3421G)? Does the signal appear at Pin 27, Check IC32 and related circuit. 28 of IC53 (MSP3421G)? Does the signal appear Check IC55 (Audio amp) and related circuit. at L53~L56? Replace the speaker. LW15E23CB/LW17E24CB...
Page 17
CONFIDENTIAL 6 Exploded View and Parts List 6-1-1 LW15E23CB LW15E23CB/LW17E24CB...
CONFIDENTIAL 9 Wiring Diagram CN61 CN62 KEY0 KEY1 KEY2 CN21 KEY3 KEY4 KEY5 KEY6 SPK OUT R + CN53 SPK OUT -R- CN13 SPK OUT L + CN52 SPK OUT L- AUDIO R IN LED_GRN AUDIO L IN LED_RED CN22 VCR CVB S IRRCVR CN26...