HCD-S500/S800
6. AV DecoderCheck Items List
(6-2) 1930 RAM2) Version
Data write ? read, and accord check(2-2) Revision
Error 13: AVD RAM read data discord(2-3) ROM Check Sum
The program code data stored in ROM (IC107 or IC108)(2-4) Model Type
are copied to all areas ooERAM (IC504, IC505) connected(2-5) Region
to the AVD (IC503) through the bus, then they are read and
checked if they accord. Further, the same test is conducted3) Peripheral
once again with the data where all bits are in(3-2)verted betweenEEPROM Check
1 and 0. If discord is detected, faulty address, written data,
and read data are displayed following the err4) Servor code 13,o
and the test is suspended.(4-2) Servo DSP Check
(4-3) DSP Driver Test
(6-3) 1930 SP
ROM ? AVD RAM ? Video OUT5) Supply
Error: Not detected.(5-2) ARP Register Check
The data including sub picture streams in R(5-3)OM (IC107 orARP to RAM Data Bus
IC108) are transferred to the RAM (IC504, IC505) in (5-4) ARP to RAM AVDAddress Bus
(IC503), and output as video signals from the (5-5)AVD (IC503).ARP RAM Check
They are output from all video terminals (Composite, Y/C).
6) AV Decoder
7. Video(6-2) 1930 RAM
(6-3) 1930 SP
(7-2) Color Bar
AVD color bar command write ? Video OUT7)Video
Error: Not detected.(7-2) Color Bar
The command is transferred to the AVD, and the color bar(7-3) Composit Out
signals are output from video terminals.(7-4) Y/C Out
They are output from all video terminals (Composite, Y/C).(7-6) Component Out
(7-3) Composit Out8) Audio
(8-2) ARP ? 1930
(7-4) Y/C Out(8-3) Test Tone
(7-6) Component Out9) DSD Decoder
(9-2) 2752 ID Check
8. Audio(9-3) 2752 RAM Check
(8-2) ARP ? 1930Error Codes List
Error 14: ARP ? 1930 video NG00: Error not detected
15 ?: 1930 audio NG ARP 01: RAM write/read data discord
02: Gate array NG
(8-3) Test Tone03: EEPROM NG
All channels08: ARP register read data discord
2ch Left09: ARP ?? RAM data bus error
2ch Right10: ARP ?? RAM address bus error
Front Left11: ARP RAM read data discord
Front Right12: Servo DSP NG
Rear Left13: 1930 SDRAM NG
Rear Right14: ARP ? 1930 video NG
Center15: ARP ? 1930 audio NG
Sub Woofer16: 1910 UCODE download NG
17: System call error (function not supported)
9. DSD Decoder18: System call error (parameter error)
19: System call error (illegal ID number)
(9-2) 2752 ID Chack20: System call error (time out)
90: Error occurred
(9-3) 2752 RAM Check91: User verification NG
92: Diagnosis cancelled
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