Clarion VRX928RVD, Руководство по обслуживанию

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- 7 - VRX928RVD
ADJUSTMENTS
Main unit section
DC-DC converter output voltage / PLL output voltage adjust-
ment
Condition:
Function : VISUAL mode
Tuner amp unit : Input NTSC color bar video signal
1. Adjust VR150 so that the voltage of TP152 is
5.35V(+0.02V/-0.02V).
2. Adjust VR101 so that the voltage of TP105 is 1.8V(+0.3V/
-0.3V).
LCD PWB section
Power supply voltage confirmation
1. Make sure the voltage has become the following value
at each test point.
TP708 : 5.3V(+0.5V/-0.5V)
TP709 : 7.5V(+0.5V/-0.5V)
TP710 : 13.0V(+0.5V/-0.5V)
TP707 : -16.0V(+0.5V/-0.5V)
PLL adjustment
1. TP717 connect to GND. Confirm that the TP716 voltage
is 2.65V(+0.1V/-0.1V).
2. Adjust VR707 so that the frequency of TP718 is
15.50Hz/-50Hz).
Screen position adjustment
1. Adjust VR708 so that the pulse width of TP718 is 4.6u
sec(+0.1u sec./-0.1u sec.).
Voltage confirmation of J702 connector
VGH(pin32) : 13.0V(+0.5V/-0.5V)
VCC(pin24) : -11.0V(+0.5V/-0.5V)
VGL(pin18) : -8.4V(+0.5V/-0.5V)
VSH(pin1,pin3) : 5.3V(+0.5V/-0.5V)
VIDEO signal adjustment
(step 1 to 7 :NTSC, step 8 :PAL)
Input the visual signal(10step wave,monochrome,APL=50%,
1.0Vp-p)to the VIDEO input.
1. BRIGHT voltage confirmation
Make sure the voltage of TP701 is 2.00V(+0.1V/-0.1V).
2. GAMMA 0 voltage confirmation
Make sure the voltage of TP705 is 1.95V(+0.1V/-0.1V).
3. GAMMA 2 voltage confirmation
Make sure the voltage of TP706 is 2.15V(+0.1V/-0.1V).
4. RGB-AMP/CONT-G adjustment
Adjust VR705(RGB AMP) so that VBB voltage of TP712
is 4.0V(+0.05V/-0.05V).
Adjust VR701(CONT) so that VBW voltage of TP712 is
3.8V(+0.05V/-0.05V).
5. BRT-R Adjustment
Adjust VR703(BRT-R) so that VBB voltage of TP713 is
4.0V(+0.05V/-0.05V).
6. BRT-B Adjustment
Adjust VR704(BRT-B) so that VBB voltage of TP711 is
4.0V(+0.05V/-0.05V).
7. COM-AMP adjustment
Adjust VR702(COM-AMP) so that the amplitude of TP714
is 8.0V(+0.1V/-0.1V p-p).
8. Burst cleaning adjustment
Input a color bar signal.(PAL)
Adjust L702 so that the wave form of TP711 is in focus.
VCOM DC bias adjustment
1. Adjust VR706(VCOM DC) to obtain the optimum
contrast(CINEMA MODE).
Voltage/frequency confirmation of inverter section
TP901 : 5.0V(+0.5V/-0.5V)
TP902 : 53kHz(+5kHz/-5kHz)
Tuner amp unit section
S-meter adjustment
1. Input the 98.1MHz/30dBu(400Hz 90% + pilot 10%
MOD)signal.
2. To make a test mode,Press the preset button 6 more
than 1 second while holding the MUTE button.
3. Adjust VR501 so that the reading of the display is 24dB+1/
-1dB(LCD display "24****++").
EXPLANATION OF IC
051-6441-00 ES4408 DVD Processor
1.Terminal Description
pin 1: VCC : - : Positive supply voltage.
pin 2: LA 4 : O : Device address output.
pin 3: LA 5 : O : Device address output.
pin 4: LA 6 : O : Device address output.
pin 5: LA 7 : O : Device address output.
pin 6: LA 8 : O : Device address output.
pin 7: LA 9 : O : Device address output.
pin 8: VSS : - : Negative supply voltage.
pin 9: VCC : - : Positive supply voltage.
pin 10: LA 10 : O : Device address output.
pin 11: LA 11 : O : Device address output.
pin 12: LA 12 : O : Device address output.
pin 13: LA 13 : O : Device address output.
pin 14: LA 14 : O : Device address output.
pin 15: LA 15 : O : Device address output.
pin 16: LA 16 : O : Device address output.
pin 17: VSS : - : Negative supply voltage.
pin 18: VCC : - : Positive supply voltage.
pin 19: LA 17 : O : Device address output.
pin 20: LA 18 : O : Device address output.
pin 21: LA 19 : O : Device address output.
pin 22: LA 20 : O : Device address output.
pin 23: LA 21 : O : Device address output.
pin 24: RESET : IN : Reset signal input.
pin 25: TDM DX/RSEL :I/O: TDM transmit data output. ROM select
input.
pin 26: VSS : - : Negative supply voltage.
pin 27: VCC : - : Positive supply voltage.
pin 28: TDM DR : IN : TDM receive data input.
pin 29: TDM CLK : IN : TDM clock pulse input.
pin 30: TDM FS : IN : TDM frame cynch.
pin 31: TDM TSC : O : TDM output enable.
pin 32: TWS/SEL PLL1 :I/O: Audio transmit frame synchronous pulse
output. Select PLL input.
pin 33: TSD0/SEL PLL0 :I/O: Audio transmit serial data output. Select
PLL input.
pin 34: VSS : - : Negative supply voltage.
pin 35: VCC : - : Positive supply voltage.
pin 36: TSD1/SEL PLL1 :I/O: Audio transmit serial data output. Select
PLL input.
pin 37: TSD 2 : O : Audio transmit serial data output.
pin 38: TSD 3 : O : Audio transmit serial data output.
pin 39: M CLK : O : The clock puse output to the CD IC.
pin 40: TB CK :I/O: Audio transmit bit clock.
pin 41: SPDIF DOBM : O : S/PDIF format output.
pin 42: NU : - : Not in use.