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2. D-PCB Assy
2-1. Operation check
• Set QV-5000SX in "PLAY" mode.
• Connect C, L, PW, KA, KB, JK, BL PCB.
• Connect PACT (CP510) to GND for short time (1, 2 seconds).
Then the unit will be operation mode.
Supply electricity to each power source of D PCB.
VCC3-1; 3.3 ± 0.08V
EVCC; 3.3 ± 0.08V
AC adaptor can be used. But if the unit does not operate correctly use the values listed above.
1. Clock frequency check
Make sure SYSCLKP terminal is at f0 = 54MHz ± 60ppm.
2. DT program check
Program used: dt777E
Check the items listed below.
(1) Make sure serial communication connection is OK.
(2) Check ROM version.
(3) Make sure DRAM is OK.
(4) Make sure flash memory is OK.
(5) Check the voltages detected. (HIGH will be displayed)
(vcc1-3 voltage high; 6.0 ± 0.1 V, middle; 4.5 ± 0.1 V, low; 4.0 ± 0.1 V)
(6) Check that each mode is OK.
• REC/PLAY mode
• VIDEO jack used/not used
• AC adaptor jack used/not used
(7) Make sure each key works correctly.
(8) Make sure each LED lights.
• LED for self timer
• Operation display LED
(9) Make sure TFT LCD display goes on an off correctly.
(10) Make sure SUB LCD lights.
(11) Turn power OFF.
3. Make sure RGB and VIDEO are outputted.
For VIDEO, check each of NTSC type and PAL type.
Note:
Make sure video signal level are as shown below.
ROM version (~98022502) : 0.810 V ± 0.160 (100 % white)
ROM version (98022601~) : 0.665 V ± 0.150 ( 75 % white)
VCC5-1; 5.0 ± 0.1V
VCC1-3; 6.0 ± 0.08V
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