KRF-X9995D/X9995D-S/VR-5700/5900
7
CIRCUIT DESCRIPTION
5.Test Mode
5-1 Setting Method of the Test Mode
•Turn on the power supply while pressing the "INPUT SELECTOR DOWN" key, to make a set in test mode.
5-2 Canceling the Test Mode
•The system is initialized and the test mode is cancelled if unplug the AC power cord from an AC power wall outlet.
5-3 Contents of the Test Mode
✽
The following operation is available when the FL is all lighting up mode only.
Key
Operation
Display
SOUND
Set up the RF frequency to428MHz.
RF BAND
LISTEN MODE
Set up the RF frequency to422MHz.
RF BAND
THX
Indicated the tuner destination in the FL.
EX. TYPE E1
MEMORY
Changed the dimmer off/1/2 cyclically.
ALL FL Light ON
6. Main Microcomputer: uPD784217A518 (X13, IC3)
6-1 Main Microcomputer Periphery block diagram
X13,IC6
X11(IC2/21)
LCD Remote Cont.
Selector IC
Transmitter IC
Protection
NJU7312AM
uPD17215GF
X11(IC3/22/24)
Selector IC
X13,IC5
NJU7313AM
Serial
Parallel
Fan
X07,K6
X11,IC23
TC74HC164AF
PWR Relay
Selector IC
X07,K1~k4
NJU7311AM
SP. Relay
X11,IC6
Vol. IC
97~99
1,2
94,95
88
TC9459N
78~82
Mute Circuit
X11,IC8
X08,IC43
Vol. IC
Sub u-Com
TC9459N
73,74
uPD784224K507
X11,IC10
Vol. IC
TC9459N
65,66
UART
X11,IC12
X13, IC3
X25,ED1
Vol. IC
X25,J201
FL
Main Microcomputer
36
X25,IC1
uPD784217A518
3~7
FL Driver
uPD780204
Power/Input
48,60
Down Key
X25
Panel Key
53
54
Destination
SW
25~80
58,59
Panel
KRF-X9995D
X05-510X, IC2
25,26,30
REM2
Door
VR-5900 only
PLL for Remote
93
8,10
50
Control
LV2105V
Except KRF-X9995D and
Rotary
Video
X13(IC502,504,505)
KRF-X7775D
Encoder
Selector IC
(IC603,604,701~703)
X25,S19
X25,IC401
Relay Cont.
RF/IR IN
IR Receiver
SWITCH
IR SEL.
Except KRF-X7775D (M/X/V TYPE) and
KRF-X9995D/
KRF-X9995D (M/X TYPE)
VR-5900 only
SL16
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