Pioneer AVH-P7800DVD [215/280] Pcl output

Pioneer AVH-P7800DVD [215/280] Pcl output
AVH-P7800DVD/UC
215
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6.6 SYSTEM MICROCOMPUTER TEST PROGRAM
DC-DC converter adjustment
Test condition
1. DC-DC converter output : -9 V(-8.9 V) Load resistance : 220 (1 W or more)
2. DDCCTL : Low(0 V) , SYSPW : HIGH(5 V)
DC-DC converter input power supply voltage : 14.4 V ± 0.2 V
Measuring point
1. Output voltage output , output noise level
DC-DC converter output : Test point(TP9021) and GND
2. Frequency
Frequency : Test point(TP9022) and GND
No.
ITEMS SPECIFICATIONS NOTE APPLICATION
80 mA
Frequency
DDCCTL : LOW
Frequency
DDCCTL : HIGH
No filter
-8.9 ± 0.4 V
370 ± 5 kHz
425 ± 10 kHz
-30 dBs or less
Output voltage
Frequency
Frequency
Output noise level
1
2
3
4
- PCL output
In the normal operation mode (with the detachable panel installed, the ACC switched ON, the standby mode
cancelled), shift the TESTIN (IC102 Pin 83) terminal to H.
The clock signal is output from the CLKOUT(IC102 Pin 86).
The clock signal should be 18.874368 MHz ± 754 Hz.
If the clock signal is out of the range, the X'tal (X101) should be replaced with new one.

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