II- 8
2.3 MAIN
PCB
Fig. 2.3-1 shows the block diagram of the main PCB. The main PCB consists of the following
components.
(1) CPU (Including ROM and RAM)
(2) EEPROM (4Kbit)
(3) Power supply ON/OFF circuit, Feed button ON/OFF circuit, Cut button ON/OFF circuit, LED
ON/OFF circuit
(4) Head power supply ON/OFF circuit
(5) Full cutter motor driver circuit and Media feed motor driver circuit
(6) Media type detect sensor circuit, Media position detect sensor circuit and Cover open sensor
circuit
(7) Head temperature detect circuit
(8) Cutter home position detect sensor circuit
(9) Reset circuit
(10) USB interface circuit
Fig. 2.3-1 Block Diagram of Main PCB
Содержание QL 570 - P-Touch B/W Direct Thermal Printer
Страница 1: ...P touch SERVICE MANUAL MODEL QL 570 ...
Страница 29: ...III 4 Grease to be used Silicon grease G501 rice grain sized Platen gear Double gear C ...
Страница 84: ...IV 6 4 5 TROUBLESHOOTING FLOWS 1 Printing is performed with specific dots omitted ...
Страница 85: ...IV 7 2 The tape is not detected correctly ...
Страница 86: ...IV 8 3 LED does not turn on ...
Страница 87: ...IV 9 4 No printing is performed 5 The interface malfunction ...
Страница 88: ...IV 10 6 The tape is not cut ...
Страница 89: ...IV 11 7 The tape is not fed correctly ...
Страница 104: ... 7 If the check result is OK click the 2 Quit sensors check button If NG click the Sensors test NG button Fig 17 15 ...
Страница 122: ...Sep 2007 SM PT002 3 ...