Epson ELPDC21 Not turning on, led blinking: Difference between revisions

Epson ELPDC21 Not turning on, led blinking
Device	Epson ELPDC21
Affects part(s)	Connectors
Needs equipment	Screwdrivers
Difficulty	◉◉◌◌ Medium
Type	Teardown

VisualWikitext

Latest revision as of 15:59, 14 January 2024

Problem description

When the main board of the document camera cannot talk to the camera head, it will not finish its startup sequence.

Symptoms

Detail all measurable or observable symptoms in this section.

After pressing the power button the power led correctly starts flashing, but
The flashing never stops, and the document camera doesn't start functioning

Solution

Diagnostic/Repair Steps

The most likely reason this can happen is that one of the connectors gets disconnected, either on the main board, or in the camera head. The connector in the camera head is more likely to become disconnected, however as a first step it's recommended to check the connector at the main board, because it's easier to disassemble the base of the camera.

Diagnostics and repair involves disassembling the device, and re-seating the connector.

Disassemble the base of the device
Check and re-seat the connector on Figure 1
If the device still doesn't turn on, then:
Re-assemble the base
Disassemble the camera head (this is more difficult)
Check and re-seat the connector on Figure 2
If the device still doesn't turn on, then it may have a more complicated fault

@@ Line 6: / Line 6: @@
 |Difficulty=2. Medium
 }}
-{{stub}}
 ==Problem description==
-Provide a concise description of the issue here. Be  as specific as possible to help readers quickly determine whether or not this is the exact problem they are facing.
+When the main board of the document camera cannot talk to the camera head, it will not finish its startup sequence.
-[[File:Placeholder image.jpg|thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it!]]
 ==Symptoms==
 Detail all measurable or observable symptoms in this section.
-*Symptom 1 (Figure 1)
+*After pressing the power button the power led correctly starts flashing, but
-*Symptom 2
+*The flashing never stops, and the document camera doesn't start functioning
 ==Solution==
-If the issue has a single, specific solution, provide it in this section and delete the sub-headers below. Otherwise, if there are multiple potential causes for the problem, outline the process of identifying the root cause and offer corresponding solutions below.
+===Diagnostic/Repair Steps===
+[[File:Epson_elpdc21_document_camera_reseat_this_connector_first.jpg|thumb|Figure 1 - The first connector to check]]
-===Diagnostic Steps===
+[[File:Epson_elpdc21_document_camera_reseat_this_connector.jpg|thumb|Figure 2 - The second connector to check]]
+The most likely reason this can happen is that one of the connectors gets disconnected, either on the main board, or in the camera head. The connector in the camera head is more likely to become disconnected, however as a first step it's recommended to check the connector at the main board, because it's easier to disassemble the base of the camera.
+Diagnostics and repair involves disassembling the device, and re-seating the connector.
-===Repair Steps===
+# Disassemble the base of the device
+# Check and re-seat the connector on Figure 1
+# If the device still doesn't turn on, then:
+# Re-assemble the base
+# Disassemble the camera head (this is more difficult)
+# Check and re-seat the connector on Figure 2
+# If the device still doesn't turn on, then it may have a more complicated fault