Hitachi CL32W30TAN Wartungshandbuch Seite 51

TEST POINTS ON MPEG PCB
Test Point Net Name
Sheet 1 AV Section
TP100 AV_D7
TP101 AV_D6
TP102 AV_D5
TP103 AV_D4
TP104 AV_D3
TP105 AV_D2
TP106 AV_D1
TP107 AV_D0
TP108 AV_DEMUX-AV_0
TP109 AV_DEMUX-AV_1
TP1010 AV_DEMUX-AV_2
TP1011 AV_DEMUX-AV_3
TP1012 AV_DEMUX-AV_4
TP1013 AV_DEMUX-AV_5
TP1014 AV_DEMUX-AV_6
TP1015 AV_DEMUX-AV_7
TP116 /AV_DEMUX-AV_ERR
TP117 AV_DEMUX-V_AVALID
TP118 AV_DEMUX-V_VVALID
TP119 /AV_DEMUX-AV_VREQ
TP120 /AV_DEMUX-AV_AREQ
TP182 TOS
TP181 MOT / NOT INTEL
TP121 CLK_27_8
TP122 /AV_RESET
TP123 /INT_AV
TP124 /DSACK0
TP125 R/NW
TP126 /DS
TP127 /AS
TP128 /CS_AV
TP129 /VSYNC_AV
TP130 /HSYNC_AV
TP131 OSD
TP132 YC7_AV
TP133 YC6_AV
TP134 YC5_AV
TP135 YC4_AV
TP136 YC3_AV
TP137 YC2_AV
TP138 YC1_AV
TP139 YC0_AV
TP140 PLL_ACLK
TP141 A_CLK
TP142 BCLK
TP143 LRCLK
TP144 ASDATA
TP179 SCAN_TE
TP183 ZTEST
TP145 AV_D15
TP146 AV_D14
TP147 AV_D13
TP148 AV_D12
TP149 AV_D11
TP150 AV_D10
TP151 AV_D9
TP152 AV_D8
TP180 SCLK
TP173 SCLK_B
TP153 AV_A9
Function
SDRAMdata 7
SDRAMdata 6
SDRAMdata 5
SDRAMdata 4
SDRAMdata 3
SDRAMdata 2
SDRAMdata 1
SDRAMdata 0
Multiplexed video and audio (Demux to AV) b0
Multiplexed video and audio (Demux to AV) b1
Multiplexed video and audio (Demux to AV) b2
Multiplexed video and audio (Demux to AV) b3
Multiplexed video and audio (Demux to AV) b4
Multiplexed video and audio (Demux to AV) b5
Multiplexed video and audio (Demux to AV) b6
Multiplexed video and audio (Demux to AV) b7
Data error indication
Audio sample valid
Video sample valid
Request for video samples
Request for audio samples
Test function
Busmode - Motorola (high) / Intel (low)
27MHz clock input to AV chip
AV chip reset (active low)
Interrupt to CPU from AV chip(active low)
Bus transfer timing control line
Read (high) / write (low)
Data strobe (active low)
Address strobe (active low)
AV chip select (active low)
Vertical sync into AV chip (active low)
Horizontal sync into AV chip (active low)
On screen display present indicator (active high)
Video output 7 to encoder IC
Video output 6 to encoder IC
Video output 5 to encoder IC
Video output 4 to encoder IC
Video output 3 to encoder IC
Video output 2 to encoder IC
Video output 1 to encoder IC
Video output 0 to encoder IC
PCM audio oversampling clock input from PLL IC
PCM audio oversampling clock output
PCM sample bitrate audio clock
PCM left/right audio sample ID signal
PCM audio data
Test input
Test input
SDRAM data 15
SDRAM data 14
SDRAM data 13
SDRAM data 12
SDRAM data 11
SDARM data 10
SDARM data 9
SDRAM data 8
SDRAM 81MHz clock direct from AV chip
SDRAM 81MHz clock after link resistor
SDRAM address 9
50