Add message illustrations from service manuals

_source/_posts/2026-07-25-yamaha-receiver-recap.md

@@ -43,7 +43,12 @@ which indicates that the normal range at that point is between 1.31 V and 2.01 V
 
 ## Service manual oddity
 
-In the documentation of messages displayed when starting the self-diagnostic function, the HTR-3064 service manual lists a number of possible protection faults at previous shutdown, with associated messages displayed on the device shown as illustrations:
+In the documentation of messages displayed when starting the self-diagnostic function, the HTR-3064 service manual lists a number of possible protection faults at previous shutdown, with associated messages displayed on the device shown as illustrations.
+
+{% figure caption:"HTR-3064 service manual: protection messages PS_PRT and PRV_PRT" %}
+![HTR-3064 PS_PRT](assets/Yamaha-HTR-3064/htr-3064-PS_PRT.png)
+![HTR-3064 PRV_PRT](assets/Yamaha-HTR-3064/htr-3064-PRV_PRT.png)
+{% endfigure %}
 
 | Paragraph | Fault | Message from illustration |
 |---|---|---|
@@ -67,7 +72,13 @@ Examination of the circuit diagrams confirm that the PS_PRT pin indeed averages
 
 Interestingly, no ADC pin of the CPU is labeled as PRV_PRT.
 
-The service manual for the HTR-3067 has very similar text, but shows the PS_PRT illustration for the "abnormal voltage in power supply" condition, which contributes to confirming the logic here.
+The service manual for the HTR-3067 has very similar text, but shows the PS_PRT illustration for the "abnormal voltage in power supply" condition, which contributes to confirming the logic here:
+
+{% figure caption:"HTR-3067 service manual: protection messages I_PROTECT and PS_PRT" %}
+![HTR-3067 I_PROTECT](assets/Yamaha-HTR-3064/htr-3067-I_PROTECT.png)
+![HTR-3067 PS_PRT](assets/Yamaha-HTR-3064/htr-3067-PS_PRT.png)
+{% endfigure %}
+
 
 # Investigation