Hardware Overview
Theory of Operation
1 - 12
0070-10-0591-01
Trio™ Service Manual
Audio Process Circuit
Generates audio signals to drive the speaker.
Watchdog
• Upon power-up, supply Reset signal to CPU
• Provide functions of Watchdog Timer Output and voltage detection.
1.2.7
TR60-C Recorder
FIGURE 1-9
Block Diagram of TR60-C drive board
1.2.7.1
Detailed Description
Thermal Head
The thermal head, the core component in the TR60-C recorder, is the PTMBL1300A thermal
head, manufactured by the ALPS company.
Key test points
NO.
NAME LOCATION
FUNCTION
1.
5V/5B
J5 pin 1
Power input, range: 4.0~5.5V
2.
GND
J5 pin 2
Power supply and signal ground
3.
RST
J5 pin 3
CPU reset signal. At low level(<0.8V (during
normal operation)
4.
Crystal oscillator
X1 pin 1,X1 pin 2
CPU crystal oscillator. Sine wave signal
1.5~3.5V (during normal operation)
Thermal Head
CPU
cpld 9536
Status Detection
Motor
driver
Signal & 5 V
DC/DC
12 V > 8 V
Содержание Trio
Страница 1: ...Service Manual 0070 01 0591 02_revB_Trio srv color indd 1 3 10 10 5 36 48 PM ...
Страница 2: ...Service Manual ...
Страница 7: ...Introduction Warning iv 0070 10 0591 01 Trio Service Manual This page intentionally left blank ...
Страница 55: ...Introduction Repair Information 4 2 0070 10 0591 01 Trio Service Monitor This page intentionally left blank ...
Страница 58: ...Trio Service Manual 0070 10 0591 01 4 5 Repair Information Introduction FIGURE 4 3 CPU PCB Connector Reference ...
Страница 61: ...Introduction Repair Information 4 8 0070 10 0591 01 Trio Service Manual This page intentionally left blank ...
Страница 81: ...0070 10 0591 01 Revision G July 17 2010 ...