Differences

This shows you the differences between two versions of the page.

--- projects:yamaha_amp [2026/09/07 20:07] – ↷ Page name changed from projects:yamaha_r840 to projects:yamaha_amp admin
+++ projects:yamaha_amp [2026/09/07 20:17] (current) – [Yamaha MCR-840] admin
@@ Line 6: / Line 6: @@
 ====== Yamaha Audio Amp/Receiver ======
+===== Disclaimer =====
+I am not responsible for any damages or injuries. Think before you do. \\
+Warning: The device uses mains voltage of course. So be cautious, e.g. when repairing standby-circuit! \\
 ===== Yamaha MCR-840 =====
 Yamaha R840 is part of Micro Component System MCR-840 and comes with either CD-Player (MCR640), DVD-Player (MCR840) or BluRay-Player (MCR940). The players are connected via RCA but need a proprietary "System Connector" cable. The remote control is different for MCR640. \\
 The system comes with Yamaha NS-BP300 speakers in black or white which sound good. \\
 It has a coax Subwoofer-out. You can add Bluetooth capability via iPod-30pin dock or RCA. \\
-Unlock RCA-input of player with "hacking" [[projects:yamaha_r840#the_round_one|System Connector]] or [[projects:yamaha_r840#ipod-30pin_dock|iPod 30pin dock]] and use remote controls over UART. \\
+Unlock RCA-input of player with "hacking" [[projects:yamaha_amp#the_round_one|System Connector]] or [[projects:yamaha_amp#ipod-30pin_dock|iPod 30pin dock]] and use remote controls over UART. \\
-Unfortunately, it lacks Yamaha loudness control, which you might add with [[projects:yamaha_r840#yamaha_loudness|loudness circuit]]. \\
+Unfortunately, it lacks Yamaha loudness control, which you might add with [[projects:yamaha_amp#yamaha_loudness|loudness circuit]]. \\
 {{:projects:yamaha:yamaha_mcr-840_micro_component_system.jpg?nolink&200|}}
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 The buttons and their layout of remote control for DVD and BD versions differ slightly. \\
 ==== Disc Player manual eject ====
-The players only turn on with system connector plugged into R840 amp (see [[projects:yamaha_r840#the_round_one|below how to simulate system connector]]). \\
+The players only turn on with system connector plugged into R840 amp (see [[projects:yamaha_amp#the_round_one|below how to simulate system connector]]). \\
 To eject disc from player without power, the manual says to slide a flat head screwdriver in the slot at the bottom. \\
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 Other Yamaha receivers also instead use D-Sub connector for RS232. \\
-Jump to [[projects:yamaha_r840#other_interconnections|RS232 sample projects]] \\
+Jump to [[projects:yamaha_amp#other_interconnections|RS232 sample projects]] \\
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 tldr;
    * Disconnect speakers and all inputs.
-   * Try DIAG / Self Diagnosis Function: hold FM/AM + 8, press MASTER, and continue holding the two buttons for at least 3 seconds. DIAG startup * **WARNING: disables most protection circuits and can cause further damages if genuine amplifier fault!**
+   * Try DIAG / Self Diagnosis Function: hold FM/AM + 8, press MASTER, and continue holding the two buttons for at least 3 seconds. **WARNING: DIAG startup disables most protection circuits and can cause further damages if genuine amplifier fault!**
    * If absolutely nothing lights/clicks, DIAG itself probably cannot run because the standby supply/CPU isn't being powered correctly.
    * Unplug the receiver and inspect/test film capacitor C254.