Brother PR655 Service Manual page 216

Test mode
After replacing the main PCB, you must set the picker motor over-pulses (Test mode #05) and adjust the frame sensor
(Test mode #08).
2) Press the number on the screen, and select the test mode.
MAIN BOARD TEST MODE SELECTION SCREEN
[01]. Motor test: Main shaft motor test
[02]. XY test: X/Y motor test
[03]. Trim test: Trim (thread cut) motor test
[04]. Wiper/Jump test: Wiper and jump bracket motor test
[05]. Picker test: Picker motor test
[06]. Threader test: Thread motor test
[07]. Sensor test: Sensor test
[08]. A/D test: A/D conversion value test
[09]. Case test: Needle bar case motor test
[10]. Needle position: Needle position adjustment
[11]. Needle spacing: Needle and rotary hook timing adjustment and needle
space adjustment
[12]. Needle threader: Needle threader adjustment
PANEL BOARD TEST MODE SELECTION SCREEN
[21]. Serial numbers: Serial numbers display
[22]. SW check: Switch checking
[23]. LED check: Sewing light, Speaker and S/S LED checking
[24]. LCD check: LCD checking
[25]. Eeprom: (Not used)
[26]. USB HOST: USB HOST checking
[27]. Clearing: Flash memory area/Service counter clearing
[28]. Clearing ALL: (Not used)
[29]. Eeprom USB write: EEPROM/USB media writing (Not used)
[30]. Eeprom USB SETUP: (Not used)
[31]. Touch panel check: Touch panel adjustment checking
[32]. Default check: Parameter default checking
[33]. Teaching view: (Not used)
[34]. Thread name view: (Not used)
[35]. Error display: (Not used)
[36]. Error list: Error list display
[37]. Process check: (Not used)
[38]. Png Icon Check: (Not used)
[39]. LED Pointer Check: LED pointer checking
[40]. Ex Unit Check: (Not used)
Selecting test mode
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