Differences

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--- x68000:x68000_xvi_compact_audio_troubleshooting_and_repair [2012/02/27 20:55] – eidis
+++ x68000:x68000_xvi_compact_audio_troubleshooting_and_repair [2012/02/27 21:08] – eidis
@@ Line 1: / Line 1: @@
 ===== X68000 XVI Compact audio troubleshooting and repair =====
-The following information is kind contribution by our forum members **Lydux**, **BlueBMW** and **RobIvy64**. Thank you guys for another GameSX exclusive article !
+The following information is kind contribution by our forum members **Lydux**, **BlueBMW** and **RobIvy64**. Thank you guys for another GameSX exclusive article ! You can use this information to troubleshoot audio problems on other X68000 models, just be warned that part descriptions on PCB will differ.
 For this repair the following tools will come in handy:
@@ Line 11: / Line 11: @@
   *If the sound is coming out distorted or at a very low volume, the first thing you can try is replacing all capacitors.
   *If that does not help, you could have a bad amplifier on Op-Amps (MC3403) or the dual channel DAC (YM3012). It could also be a power regulation problem on amplifier part. You can check this with a voltmeter on op-amp (pin 4 and 11). They should be +12v and -12v. If there is a PSU failure on -12v rail, it will cause distortions.
-  *Please note that the acid from leaked capacitors can eat up traces above and below the solder mask and traces which look fine can be corroded and broken below it. Please test all suspected traces for continuity.
+  *Please note that acid from leaked capacitors can eat up traces above and below the solder mask and traces which look fine can be corroded and broken below it. Please test all suspected traces for continuity.
 |{{:x68000:x68000_xvi_compact_audio_troubleshooting_and_repair_1.jpg?240}}{{:x68000:x68000_xvi_compact_audio_troubleshooting_and_repair_2.jpg?200}}|
@@ Line 48: / Line 48: @@
 For further troubleshooting please use the following schematics which have been kindly contributed by **Lydux** and updated by **BlueBMW**. Please note that component names which are not in red could have different part numbers.
-{{:x68000:x68000_compact_audio_pre-amplification_schematics_1.jpg?800}}
+{{:x68000:x68000_compact_audio_pre-amplification_schematics_1.jpg}}
-{{:x68000:x68000_compact_audio_pre-amplification_schematics_2.jpg?800}}
+{{:x68000:x68000_compact_audio_pre-amplification_schematics_2.jpg}}
 Keep the scene alive !