Test Mode - Kenwood KRC-19A/G Service Manual

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MICROCOMPUTER'S TERMINAL DESCRIPTION
3 7 63 1515 0
¶ Terminal Description IC1 : MI-COM. (X14-)
Pin No. Pin Name
62 B.U. DET
63 S METER
64 PANEL
65 GND
66 GND
67 HOLD
68 VDD
69 GND
70 GND
71,72
73 VDD
74 GND
75 GND
76 VSS
77,78
79 GND
80 XOUT
TE
L 13942296513
1. How to enter the test mode
• Reset the unit while holding the "FM" key and preset "6" key.
• All indication segments go ON at the beginning of the test mode.
2. How to release the test mode
• Simply reset the unit.
• (NOTE) The test mode is not canceled by ACC OFF, power OFF, momentary power down or the panel off.
3. Audio adjustment
• Set the volume level to -10dB (which is shown as "30" on the display).
• Loudness OFF.
• The BASS / TREBLE and BALANCE / FADER controls can be set to the full boost / full cut and full right / full left and full
front / full rear respectively by pressing the "Track Up" / "Track Down" keys.
• Sound coordination doesn't appear for the feed.
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5
I/O Description
I Momentary power down detection input
I S-meter input from the F/E
I Panel detaching detection input
I
I
I MI-COM. HOLD input
- VDD connection terminal
I
I
O
- VDD connection terminal
I
I
- Ground connection terminal
O
- TEST terminal 1
O Main clock reson ator connection terminal

TEST MODE

x ao u163
y
i
KRC-19A/G,289
2 9
8
Hi : When momentary power down detected
or B.U. OFF, Lo : B.U. ON
Lo : Panel not detached
Connected to GND lines.
Connected to GND lines.
Lo : Hold
Connected to B.U. 5V lines.
Connected to GND lines.
Connected to GND lines.
N.C.(Not used)
Connected to B.U. 5V lines.
Connected to GND lines.
Connected to GND lines.
Connected to GND lines.
N.C.(Not used)
Connected to GND lines.
Q Q
3 6 7 1 3 1 5
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.
9 4 2 8
Processing Operation
0 5 8 2 9 9 4 2 8
m
9 9
9 9