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Marantz SR5004 Service Manual

Marantz SR5004
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17
Check1
EEP-ROM(INPUTPWB/IC89)Interface 異常検出
EEP-ROM(INPUTPWB/IC89) との通信で ACK が帰っ
てこない状態(通信エラー)が約2秒以上生じた場合 FL
Display に下記の様な表示がされます。
-FLDisplay への Error 表示
回路上の確認箇所
1. PowerON 時に IICClockLine(IC105/116pin-IC89
/6pin) 正常なのを確認する。
2. PowerON 時に IICDataLine(IC105/117pin-IC89
/5pin) 正常なのを確認する。
3. IC89/8pin VCC(+3.3V) が供給されていることを確
認する。
4. の1−3にはIC89の
良が考えられます。
Check2
+5VSupply 異常検出(5VDOWN)
電源 ON 時又は通常動作時に +5V 電源に異常が発生し、
CPU 137pin に入力される +5V の検出が出来なかった
(出来なくなった)場合。
PowerAmp 出力 DC 検出(PAMPFAIL)
電源 ON 時又は通常動作時に PowerAmp に異常が発生し、
CPU 121pin PowerAmp 出力の DC 検出がされた
場合。
PowerAmp の異常温度検出(PAMPFAIL)
通常動作時に PowerAmp の異常な温度上昇が発生し、
CPU 121pin で異常が検出がされた場合。
PowerAmp 200msec 未満の過電流検出
(PCURFAIL)
通常動作時に PowerAmp に異常が発生し、CPU
120pin PowerAmp の過電流が 200msec 未満で検出
された場合。
上記の様な異常検出がされた場合は、Software は自動的に製
品を STANDBY 状態にして、STANDBYLED を約
500msec 間隔で点滅させます。
復帰操作:
この SystemError User STANDBYON/OFF
作を行うことで通常動作に復帰しますが、上記の異常を
再検出することで製品は再び SystemError となりま
す。
回路上の確認箇所
1. 電源 ON 時に CN81(HDMIPWB)7,8pin +5V が供
給されていることを確認する
2. 電源 ON 時に CN85 10pin(PowerAmpFail) "H"
になっていることを確認する
(10pin が電源 ON してから2秒以上 "L" 状態が継続して
いる場合は POWERAMP 回路に異常が発生している )
5. SYSTEM ERROR
Check 1
Indication of abnormalities with the EEP-ROM
(HDMI PWB / IC89) Interface
This indicates a communication error wherein the ACK will
not return for 2 seconds or more while the system is in com-
munication with the EEP-ROM (INPUT PWB / IC89).
- Message on FL display.
Points to be checked
1. The IIC Clock Line (IC105/116 pin . IC89/6 pin) is normal
when the power is ON.
2. The IIC Data Line (IC105/117 pin . IC89 / 5 pin) is normal
when the power is ON
3. The IC89/8 pin is supplied with VCC +3.3V.
4. If none of the above is negative, the IC89 may be having
a defect.
Check 2
+5V supply Error Detection (_5V DOWN)
When the power is turned on or while the unit is in normal
operation, an abnormality occurs with the +5V power
supply, and the +5V power into the CPU 137 pin cannot be
detected.
Detection of DC on Power Amp Output
(_P AMP FAIL)
When the power is turned on or while the unit is in normal
operation, an abnormality occurs with the Power Amp, and
DC is detected on the CPU 121 pin.
Detection of abnormal heat of Power Amp
(_P AMP FAIL)
The Power Amp is overheated while in normal
operation,with an abnormality detected on the CPU 121
pin.
Detection of Overcurrent below 200msec on
Power Amp (_P CUR FAIL)
When the product is in normal operation, an abnormality
occurs with the POWER AMP, and an overcurrent of less
than 200msec is detected on the CPU 120 pin.
When errors like the above abnormalities are detected, the
software automatically puts the product into STANDBY
mode, with the STANDBY LED flickering approximately
every 500msec.
NOTE : The product can recover from the SYSTEM ER-
ROR when the user turns on and then off the
STANDBY. However, once any of the above errors
is redetected, the product goes into STANDBY
again.
Points to be checked
1. The CN81 (HDMI PWB) 7 & 8 pins are supplied with +5V
when the power is ON
2. The CN85 10pin (Power Amp Fail) is outputting the "H"
signal; (If the 10 pin continues to be in the "L" state for 2
seconds or more after the power is turned ON, the Power
Amp circuit is having a problem.)
CHECK E 2P I F

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Marantz SR5004 Specifications

General IconGeneral
Channels7.1
HDMI Outputs1
Video UpscalingYes, up to 1080p
Response Bandwidth10 Hz - 100 kHz
Signal-To-Noise Ratio100 dB
THD0.08%
Input Impedance47 kOhm
Input Sensitivity200 mV
HDMI SwitchingYes
3D TechnologyYes
Frequency Response10 Hz - 100 kHz
USB PortNo
Dolby TechnologiesDolby Digital Plus, Dolby TrueHD
DTS TechnologiesDTS-HD Master Audio, DTS Neo:6
Amplifier Output Details90 watts per channel (8 ohms, 20 Hz - 20 kHz, 0.08% THD)
Tuning RangeAM/FM
Video UpconversionYes

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