1. TEST METHOD USING THE DEBUG BOARD
There are two test methods when there is an issue with the main board.
When it is not properly booted and the composite video is not displayed, you can check the status of the board
using the Debug Board for debugging prepared in the Debug port of the main board.
The Debug Board is composed as follows.
- 7-Segment that indicates the board status
- The connector interfacing the Debug port
- Boot ROM for testing: Not used.
How to use the Debug Board
The Debug Board is connected to the J802 of the main board.
Error code indicated on the Debug Board
1-8
TEST S/W
Eth
G-
MO
K4
K4
K4
K4
ern
RT
L81
Si
CX2
2
8
A
FS4
54
Au
Au
Co
P
Au
Au
Vi
Au
Vi
S
S
830
Cele
S6
S6
S6
S6
J802
Summary of Contents for LRM-519
Page 30: ...3 16 WAVEFORMS 1 SYSTEM PART 1 ...
Page 31: ...3 17 2 SYSTEM PART 2 ...
Page 32: ...3 18 3 VIDEO PART 1 ...
Page 33: ...3 19 4 VIDEO PART 2 ...
Page 34: ...3 20 5 VIDEO PART 3 ...
Page 35: ...3 21 6 VIDEO PART 4 ...
Page 36: ...3 22 AI_DATA AI_CLK AI_LRCLK 7 AUDIO PART 1 ...
Page 37: ...3 23 AUD_LINK_BCLK AUD_LINK_SDIN AUD_LINK_SYNC AUD_LINK_RST 8 AUDIO PART 2 ...
Page 38: ...SPDIF 3 24 AUDIO_L 9 AUDIO PART 3 ...
Page 39: ...3 25 TXD TXD RXIN RXIN 25MHZ 10 ETHERNET PART ...
Page 40: ...3 26 FLD_RXD FLD_CLK CLK_LPC_33MHZ 11 SUPER IO FRONT INTERFACE PART ...
Page 43: ...3 29 3 POWER BLOCK DIAGRAM ...
Page 45: ...3 31 5 BLOCK DIAGRAM ...
Page 46: ......
Page 48: ...3 34 3 35 2 POWER CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 49: ...3 36 3 37 3 CPU CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 50: ...3 38 3 39 4 GMCH CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 51: ...3 40 3 41 5 ICH4 CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 52: ...3 42 3 43 6 CLOCK LPC CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 53: ...3 44 3 45 7 MEMORY IDE CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 54: ...8 LAN USB MODEM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T 3 46 3 47 ...
Page 57: ...3 52 3 53 11 TUNER EXTERNAL AV INPUT CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 59: ...3 56 3 57 13 MISCELLANEDUS CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 60: ...3 58 3 59 14 EXTERNAL I F CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 61: ...3 60 3 61 PRINTED CIRCUIT DIAGRAMS 1 MAIN PRINTED CIRCUIT DIAGRAMS TOP VIEW ...
Page 62: ...3 62 3 63 2 MAIN PRINTED CIRCUIT DIAGRAMS BOTTOM VIEW ...
Page 64: ...3 66 3 67 5 POWER PRINTED CIRCUIT DIAGRAM ...
Page 84: ...4 20 9 LASER TURN ON SIGNAL F LIC502 PIN 52 LDEN DVD LCN201 PIN17 VRDC LCN201PIN 34 ...
Page 99: ...4 35 2 Disc Specification 3 Disc Materials 1 DVD ROM Single Layer Dual Layer ...
Page 119: ...4 55 4 56 CIRCUIT DIAGRAMS 1 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 120: ...4 57 4 58 2 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 121: ...4 59 4 60 3 µ COM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 123: ...4 63 4 64 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...