Brother International PT-9600 Service Manual - Page 30

RS-232C/USB interface circuit RS-232C : PT-9600 only - battery

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Page 30 highlights

2.2.2 Main PCB [ 1 ] Block Diagram Fig. 2.2-2 shows a block diagram of the Main PCB. The main PCB consists of the following. (1) CPU (2) ROM (Mask ROM : 16 Mb) (3) Flash ROM : 16 Mb (PT-9600 only) (4) SRAM : 256 Kb (5) DRAM : 16 Mb (6) EEPROM : 4 Kb (7) Step motor (tape feed) drive circuit (8) Step motor (tape control) drive circuit (9) DC motor (carriage) drive circuit (10) Thermal head drive circuit (11) Oscillator circuit (12) Supply voltage detect circuit (13) Environmental temperature detect circuit (14) Head temperature detect circuit (15) AC adapter detect circuit (16) Storage battery voltage detect circuit (PT-9600 only) (17) AV sensor circuit (excluding PT-3600 Europe model) (18) AV cassette sensor circuit (excluding PT-3600 Europe model) (19) LCD driver (20) Power supply circuit (21) Key/solder point detect circuit (22) RS-232C/USB interface circuit (RS-232C : PT-9600 only) (23) RTC drive circuit (PT-9600 only) (24) Jog dial circuit (EU only) (25) Cassette sensor circuit (5 elements) (26) Tape end sensor circuit (27) Cover open circuit (28) Cutter sensor circuit (29) VH, VCC ON/OFF circuit (30) Charge ON/OFF circuit (PT-9600 only) (31) Reset circuit II-14

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II-14
2.2.2
Main PCB
[ 1 ]
Block Diagram
Fig. 2.2-2 shows a block diagram of the Main PCB.
The main PCB consists of the following.
(1)
CPU
(2)
ROM (Mask ROM : 16 Mb)
(3)
Flash ROM : 16 Mb (PT-9600 only)
(4)
SRAM : 256 Kb
(5)
DRAM : 16 Mb
(6)
EEPROM : 4 Kb
(7)
Step motor (tape feed) drive circuit
(8)
Step motor (tape control) drive circuit
(9)
DC motor (carriage) drive circuit
(10) Thermal head drive circuit
(11) Oscillator circuit
(12) Supply voltage detect circuit
(13) Environmental temperature detect circuit
(14) Head temperature detect circuit
(15) AC adapter detect circuit
(16) Storage battery voltage detect circuit (PT-9600 only)
(17) AV sensor circuit (excluding PT-3600 Europe model)
(18) AV cassette sensor circuit (excluding PT-3600 Europe model)
(19) LCD driver
(20) Power supply circuit
(21) Key/solder point detect circuit
(22) RS-232C/USB interface circuit (RS-232C : PT-9600 only)
(23) RTC drive circuit (PT-9600 only)
(24) Jog dial circuit (EU only)
(25) Cassette sensor circuit (5 elements)
(26) Tape end sensor circuit
(27) Cover open circuit
(28) Cutter sensor circuit
(29) VH, VCC ON/OFF circuit
(30) Charge ON/OFF circuit (PT-9600 only)
(31) Reset circuit