Dell 1503FP User manual
TFT-LCD MONITOR
1503FP
Manual
SERVICE
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
1503FP 9-1
9 Schematic Diagrams
9-1 Scaler Part Schematic Diagram
+3.3V_P PVDD_3.3
AVDD_2.5
+3.3V_A
DVDD_3.3
DVDD_3.3
+3.3V_D
DVDD_3.3
DVDD_2.5
AVDD_3.3
AVDD_3.3
DVDD_3.3 AVDD_2.5
AVDD_3.3
DVDD_3.3
PVDD_3.3
+2.5V_D
+2.5V_A
DVDD_2.5
MENU_KEY
AUTO_KEY
SEL_KEY
MINUS_KEY
PLUS_KEY
DOWN_KEY
UP_KEY
DCLK
DAR(7:0)
DAG(7:0)
DAB(7:0)
FSADDR(13:0)
FSADDR(13:0)
DEN
DVS
DHS
DBG(7:0)
DBB(7:0)
HFS
*IRQ
*IRQIN
*RESET
DDDC_SCL
DDDC_SDA
Rx2+
Rx2-
Rx1+
Rx1-
Rx0+
Rx0-
RxC+
RxC-
DBR(7:0)
BLU+
GRN+
RED+
A_H*V_SYNC
A_V_SYNC
HCLK
12
13
14
15
12 R301, R302
13 R303, R304
14 R305, R306
15 R307, R308
9 Schematic Diagrams
9-2 1503FP
9-2 MCU Part Schematic Diagram
+5V
+5V_M
+5V_M
+5V_M
+5V_M
+5V_M
+5V_M
A(15)
*RESET
D(7:0)
HCLK
RESET
A(15)
A(16)
BANK
A(16)
A(15:8)
*PSEN
ALE
HFS
*IRQ
BANK
HDATA(3:0)
RESET
RXD
TXD
PWR_SW
SDA
SCL
CHK_DSUB
CHK_DVI
9 Schematic Diagrams
1503FP 9-3
9-3 LCD Output Part Schematic Diagram
LVDS_3.3
PANEL_3.3
PANEL_3.3
LVDS_EN
DEN
DCLK
DAB(7:0)
DVS
DHS
DAR(7:0)
DAG(7:0)
4
32
1
5
6
7
8
9
8IC401 #45, 46
7IC401 #41, 42
6IC401 #39, 40
5IC401 #37, 38
4IC401 #27
9IC401 #47, 48
3IC401 #28
2IC401 #30
1IC401 #31
9 Schematic Diagrams
9-4 1503FP
9-4 Video Input Part Schematic Diagram
Power Function
Menu Function
+5V
+5V
+5V
+5V
+5V
BRIGHT
Rx1+
A_H*V_SYNC
CHK_DSUB
DDDC_SCL
DDDC_SDA
LED_GRN
A_V_SYNC
PWR_SW
AUTO_KEY
SEL_KEY
LVDS_EN
PANEL_EN
D_LED
A_LED
LED_RED
LED_GRN
BKLT_EN
Rx0-
A_LED
D_LED
DOWN_KEY
MENU_KEY
PLUS_KEY
UP_KEY
MINUS_KEY
LED_RED
GRN+
RED+
ADDC_DATA
ADDC_CLK
BLU+
CHK_DVI
Rx2+
Rx1-
Rx2-
RxC-
RxC+
Rx0+
11
10
10 IC510 #4
11 R211
9 Schematic Diagrams
1503FP 9-5
9-5 Power Part Schematic Diagram
+12V
LVDS_3.3
+3.3V
PANEL_3.3
+12V
+3.3V_A
+3.3V_D
+5V
+2.5V_A
+2.5V_D
+12V_INV +5V
+3.3V_P
+5V
+12V
PANEL_EN
LVDS_EN
9 Schematic Diagrams
9-6 1503FP
9-6 Function Part Schematic Diagram
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