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LED ON/OFF PERIOD
Function
POWER AMP PROTECTION
POWER SUPPLY PROTECTION 2Hz (250ms on, 250ms off)
THERMAL PROTECTION
iPod OVER CURRENT
Thermal Sensor Port
Port
96
TH_D2 (for iPod)
97
DET_S (Surround)
Thermal Sensor Port
Port
22
TH_DET
TUNER AREA & MODEL
MODEL
Model
DIST (port # 95)
KRF-V9300D
3.5V
KRF-V8300D
1.75V
KRF-V7300D
TUNER AREA
Model
Japan Model
Other Area
DISPLAY REFLESH FUNCTION
Timing
Setting of Driver reset, Digit, Duty, Segment and
Turn Power-on
Dimmer by the internal program.
Transaction of display data and setting data by
In Power-on
main routine program.
CIRCUIT DESCRIPTION
Description
1Hz (500ms on, 500ms off)
4Hz (125ms on, 125ms off)
0.5Hz (1000ms on, 1000ms off)
Detection (V)
1.4V
1.4V
Detection
High
HEX
0xFF
0x80
0V
0x00
TUNER_TYPE (port # 98)
VDD
0V
Description
KRF-V7300D/V8300D/V9300D
FAN CONTROL
POWER
SPEAKER
Port # (41)
OFF
HIGH
-
LOW
K
POWER
Speaker relay
FAN_CONT
POWER ON
TAP SWITCHING
Mode
STEREO
Out of STEREO
SELECTOR: DVD/6CH & INPUT MODE: ANALOG
TEST TONE
LIMITER CONTROL
Detection port is pin # 97 (DET_S).
Control signal output from pin # 20 of extension IC
(NJU3718A) will come Low level.
Limiter works if port (#97) has over 1.5V and more 5 sec-
onds continuously.
In STEREO and SPEAKER-OFF modes, limiter does not
work.
In Surround mode, limiter does not work on Front channel,
included Center channel.
Mode
STEREO
SPEAKER OFF
SURROUND
6CH INPUT
SPEAKER
SPEAKER
relay-on
relay-on
relay off
(STEREO)
(SURROUND)
-
Over 0.232V *
Over 0.207V *
Under 0.232V * Under 0.207V *
K
* Voltage detection port is #94 (FAN_LEVEL)
This is "FAN CONTROL"
Port # (26) *
* This port is extension IC NJU3718A.
Limiter detection
No
No
Yes
Yes
HIGH
LOW
HIGH
HIGH
19
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