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electronic:lcd:f4528 [2018/12/09 01:14] – tonyelectronic:lcd:f4528 [2026/09/26 08:10] (current) – tony
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 {{ :electronic:lcd:pc093040a.jpg?200|F-4528}} {{ :electronic:lcd:pc093040a.jpg?200|F-4528}}
-^<html><p style="text-align:center">LCD Description</p></html>||+^  LCD Description  ||
 ^Model|**F-4528**| ^Model|**F-4528**|
 ^Manufacturer|| ^Manufacturer||
-^Recovered from|Digitor F-4528 phone ((appears to be the same as Audioline TEL38 clip))|+^Recovered from|[[:electronic:equipment:phone:f4528|Digitor F-4528 phone]]  ((appears to be the same as Audioline TEL38 clip))|
 ^Board IDs|EPBD25FR REV2| ^Board IDs|EPBD25FR REV2|
 ^LCD type|positive| ^LCD type|positive|
Line 17: Line 17:
 ^Pin spacing|"| ^Pin spacing|"|
  
-^ ^^^Arduino test rig ((reminder for my personal testing, not useful for anyone else!))||+CON1 
 +^  Connector pin-out  ^^^  Arduino test rig  ||
 ^Pin#^IC pin^Label^Pin^colour| ^Pin#^IC pin^Label^Pin^colour|
-^1| +^1| | |lo|-| 
-^2| +^2|lcd| |lo|-| 
-^3| +^3|lcd| |hi|-| 
-^4| +^4| | | |885ohm| 
-^5| +^5| | |lo|-| 
-^6| +^6| |GND|lo|0ohm| 
-^7| +^7|lcd|Vcc?|hi|-| 
-^8| +^8| |1.7mS wave| |360ohm| 
-^9| +^9| |1.7mS wave| |370ohm| 
-^10| +^10|lcd| |hi|-| 
-^11| +^11|lcd| |hi|-| 
-^12| +^12|lcd|reset?|hi|-|
-^13| +
-^14| +
-^15| +
-^16| +
-^17| +
-^18| +
-^19| +
-^20| +
-\\ +
-\\+
  
-Appears to have LCD controller and perhaps a separate microcontoller underneath the LCD on the top of the board.  I don't think there is a easy way to access the LCD logic by external controllers. +CON2 
----- +^  Connector pin-out  ^^^  Arduino test rig  || 
-===== Examples : =====+^Pin#^IC pin^Label^Pin^colour| 
 +^1| |Vcc|hi|1.3k| 
 +^2|lcd| |hi|515ohm| 
 +^3| |sclk 1.4kHz|lo|100ohm| 
 +^4| |sda|hi|100ohm| 
 +^5|lcd| |lo|540ohm| 
 +^6| | |lo|310ohm| 
 +^7| | |hi|-| 
 +^8|lcd| |lo|847ohm| 
 +^9| | |lo|-| 
 +^10| | |hi|490ohm| 
 +^11| | |lo|-|
  
-{{:electronic:lcd:pc093040a.jpg?800|F-4528}}+Has an LCD controller underneath the LCD on the top of the board.  I'm not sure whether this includes other logic too, the LCD board is connector to the keyswitches, so it must be used for at least that function too.  There may not be a way to access the LCD logic by external controllers.
  
-{{:electronic:lcd:pc083037a.jpg?800|F-4528}}+\\ 
 +===== Datasheets ===== 
 +  * {{:electronic:datasheet:promax-johnton:pj31002.pdf|Promax-Johnton PJ31002}} Tone ringer for telephone set. 
 +  * {{:electronic:datasheet:unisonic:mc34018.pdf|Unisonic MC34018}} Voice switched speaker phone circuit.
  
-{{:electronic:lcd:pc083028a.jpg?400|F-4528}} +\\ 
- +---- 
-{{:electronic:lcd:pc093048a.jpg?400|F-4528}} +===== Examples =====
- +
-{{:electronic:lcd:pc093049a.jpg?400|F-4528}}+
  
-{{:electronic:lcd:pc093053a.jpg?400|F-4528}}+{{:electronic:lcd:pc093040a.jpg?800|F-4528 front}}
  
-{{:electronic:lcd:pc093055a.jpg?400|F-4528}}+{{:electronic:lcd:pc083037a.jpg?800|F-4528 back}}
  
-{{:electronic:lcd:pc093058a.jpg?400|F-4528}}+{{:electronic:lcd:pc093049a.jpg?300|F-4528 character set}}\\ 
 +{{:electronic:lcd:pc093053a.jpg?300|F-4528 character set}}\\ 
 +{{:electronic:lcd:pc093055a.jpg?300|F-4528 character set}}\\ 
 +{{:electronic:lcd:pc093058a.jpg?300|F-4528 character set}}\\ 
 +{{:electronic:lcd:pc093061a.jpg?300|F-4528 character set}}\\
  
-{{:electronic:lcd:pc093061a.jpg?400|F-4528}}+{{:electronic:lcd:pc093048a.jpg?400|F-4528 examples}}
  
 +{{:electronic:lcd:pc083028a.jpg?400|F-4528 examples}}

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electronic/lcd/f4528.1544318042.txt.gz · Last modified: 2018/12/09 01:14 by tony
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