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TFT-LCD MONITOR
1503FP
SERVICE Manual
TFT-LCD MONITOR CONTENTS
1. Precautions
2. Product Specifications
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Parts List
6. Electrical Parts List
7. Block Diagram
8. Wiring Diagram
9. Schematic Diagrams
9 Schematic Diagrams
9-1 Scaler Part Schematic Diagram
MINUS_KEY
DOWN_KEY
MENU_KEY
AUTO_KEY
PLUS_KEY
SEL_KEY
UP_KEY
AVDD_3.3 AVDD_2.5 DVDD_2.5 DVDD_3.3
12 R301, R302
DVDD_3.3
DBR(7:0)
12
13 Rx2+
Rx2-
Rx1+ DBG(7:0)
Rx1-
14 Rx0+
Rx0- 13 R303, R304
RxC+
RxC-
15 AVDD_3.3
DBB(7:0)
DCLK
DHS
BLU+ DVS
DEN
GRN+ DAR(7:0)
RED+
A_H*V_SYNC
A_V_SYNC
14 R305, R306
DAG(7:0)
PVDD_3.3
DAB(7:0)
15 R307, R308
DDDC_SCL
DDDC_SDA
HCLK
HFS
DVDD_3.3
DVDD_3.3
*IRQ
*IRQIN FSADDR(13:0)
*RESET
FSADDR(13:0)
DVDD_2.5
+2.5V_D
+3.3V_D DVDD_3.3 +2.5V_A AVDD_2.5
+3.3V_A AVDD_3.3 +3.3V_P PVDD_3.3
1503FP 9-1
9 Schematic Diagrams
9-2 MCU Part Schematic Diagram
+5V_M
*IRQ
HFS
HCLK
HDATA(3:0)
D(7:0)
A(16)
RESET
RXD
TXD ALE
*PSEN
PWR_SW
SDA
SCL A(15:8)
CHK_DSUB
CHK_DVI
*RESET
RESET
+5V_M
+5V_M
A(15)
A(16)
BANK
+5V_M
A(15)
BANK
+5V_M
+5V +5V_M
9-2 1503FP
9 Schematic Diagrams
9-3 LCD Output Part Schematic Diagram
LVDS_3.3 8 IC401 #45, 46 1 IC401 #31
9 IC401 #47, 48 2 IC401 #30
9 PANEL_3.3
8
DAR(7:0)
7
6
DAG(7:0)
3 IC401 #28
5
DAB(7:0)
1
4 4 IC401 #27
3
DHS 2
DVS
DEN
DCLK
LVDS_EN
PANEL_3.3 5 IC401 #37, 38
6 IC401 #39, 40
7 IC401 #41, 42
1503FP 9-3
9 Schematic Diagrams
9-4 Video Input Part Schematic Diagram
10 IC510 #4
RED+
GRN+
BLU+
A_H*V_SYNC
A_V_SYNC
Rx2+
Rx2-
Rx1+
Rx1-
11 R211
Rx0+
Rx0-
11 RxC+
RxC-
+5V
ADDC_DATA CHK_DVI
ADDC_CLK
+5V
DDDC_SCL
DDDC_SDA
CHK_DSUB 10
+5V
BRIGHT
LVDS_EN
PANEL_EN
D_LED
A_LED
LED_RED
LED_GRN
BKLT_EN
+5V
Power Function
+5V
SEL_KEY
AUTO_KEY Menu Function
PWR_SW
DOWN_KEY
A_LED MENU_KEY
PLUS_KEY
D_LED
MINUS_KEY
LED_RED UP_KEY
LED_GRN
9-4 1503FP
9 Schematic Diagrams
9-5 Power Part Schematic Diagram
+12V_INV +12V
+5V +12V
+12V
+5V +3.3V_P
+5V
+2.5V_A
+3.3V_D
+2.5V_D +3.3V_A
+3.3V
LVDS_3.3 PANEL_3.3
LVDS_EN
PANEL_EN
1503FP 9-5
9 Schematic Diagrams
9-6 Function Part Schematic Diagram
9-6 1503FP
Samsung Electronics Co., Ltd. November 2000
Printed in Korea
P/N :BN68-00175B-01