Clarion VRX815, Руководство по обслуживанию

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VRX815
VRX815P
- 6 -
■
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 VR551 so that the voltage of TP553 is 5.3
±
0.03V.
2. Adjust VR502 so that the voltage of TP331 is 1.6
±
0.05V.
LCD PWB section
Power supply voltage confirmation
1. Make sure the voltage has become the following value
at each test point.
TP08 : 5.3
±
0.5V
TP09 : 7.5
±
0.5V
TP10 : 13.0
±
0.5V
TP07 :
−
16.0
±
0.5V
PLL adjustment
1. TP17 connect to GND. Confirm that the TP16 voltage is
2.65
±
0.1V.
2. Adjust VR707 so that the frequency of TP18 is 15.734kHz
±
50Hz.
Screen position adjustment
1. Adjust VR708 so that the pulse width of TP18 is 4.6
±
0.1
μ
sec.
Voltage confirmation of J702 connector
VGH(pin32) : 13.0
±
0.5V
VCC(pin24) : -11.0
±
0.5V
VGL(pin18) : -7.9
±
0.5V
VSH(pin1,pin3) : 5.3
±
0.5V
VIDEO signal adjustment
(step1
〜
7:NTSC, step8: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 TP01 is 2.0
±
0.1V.
2.
γ
0 voltage confirmation
Make sure the voltage of TP05 is 1.95
±
0.1V.
3.
γ
2 voltage confirmation
Make sure the voltage of TP06 is 2.15
±
0.1V.
4. RGB-AMP/CONT-G adjustment
Adjust VR705(RBG AMP) so that VBB voltage of TP12
is 4.0
±
0.05V.
Adjust VR701(CONT) so that VBW voltage of TP12 is
3.8
±
0.05V.
5. BRT-R Adjustment
Adjust VR703(BRT-R) so that VBB voltage of TP13 is
4.0
±
0.05V.
6. BRT-B Adjustment
Adjust VR704(BRT-B) so that VBB voltage of TP11 is
4.0
±
0.05V.
7. COM-AMP adjustment
Adjust VR702(COM-AMP) so that the amplitude of TP14
is 8.0
±
0.1Vp-p.
8. Burst cleaning adjustment
Input a color bar signal.(PAL)
Adjust L702 so that the wave form of TP11 is in focus.
VCOM DC bias adjustment
1. Adjust VR706(VCOM DC) to obtain the optimum con-
trast.
Voltage/frequency confirmation of inverter section
TP91 : 5.0
±
0.5V
TP92 : 53
±
5kHz
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EXPLANATION OF IC
052-6053-10 MR27V1602E-T2TPZ010 16M bit P2 ROM
1.Terminal Description
pin 1: NU : - : Not in use.
pin 2: A 18 : IN : The address input.
pin 3: A 17 : IN : The address input.
pin 4: A 7 : IN : The address input.
pin 5: A 6 : IN : The address input.
pin 6: A 5 : IN : The address input.
pin 7: A 4 : IN : The address input.
pin 8: A 3 : IN : The address input.
pin 9: A 2 : IN : The address input.
pin 10: A 1 : IN : The address input.
pin 11: A 0 : IN : The address input.
pin 12: CE_ : IN : Chip enable signal input.
pin 13: VSS : - : Negative supply voltage.
pin 14: OE_ : IN : Output enable signal input.
pin 15: D 0 : O : The data output terminal.
pin 16: D 8 : O : The data output terminal.
pin 17: D 1 : O : The data output terminal.
pin 18: D 9 : O : The data output terminal.
pin 19: D 2 : O : The data output terminal.
pin 20: D 10 : O : The data output terminal.
pin 21: D 3 : O : The data output terminal.
pin 22: D 11 : O : The data output terminal.
pin 23: VCC : - : Positive supply voltage.
pin 24: D 4 : O : The data output terminal.
pin 25: D 12 : O : The data output terminal.
pin 26: D 5 : O : The data output terminal.
pin 27: D 13 : O : The data output terminal.
pin 28: D 6 : O : The data output terminal.
pin 29: D 14 : O : The data output terminal.
pin 30: D 7 : O : The data output terminal.
pin 31: D 15 / A -1 :I/O: The data output / The address input.
pin 32: VSS : - : Negative supply voltage.
pin 33: BYTE_ : IN : The data length selection(8bit_/16bit).
pin 34: A 16 : IN : The address input.
pin 35: A 15 : IN : The address input.
pin 36: A 14 : IN : The address input.
pin 37: A 13 : IN : The address input.
pin 38: A 12 : IN : The address input.
pin 39: A 11 : IN : The address input.
pin 40: A 10 : IN : The address input.
pin 41: A 9 : IN : The address input.
pin 42: A 8 : IN : The address input.
pin 43: A 19 : IN : The address input.
pin 44: NU : - : Not in use.
052-6054-10 M30620MCA-F19GP System Controller
1.Terminal Description
pin 1: NU : - : Not in use.
pin 2: NU : - : Not in use.
pin 3: NU : - : Not in use.
pin 4: AMP REM : O : AMP Remote output.
pin 5: RDS CLK : IN : Clock pulse input from RDS decoder.
pin 6: BYTE : IN : Connect to the ground.
pin 7: CN VSS : IN : Inputting "L" at single mode operation.
pin 8: XC IN : IN : Sub system clock.
pin 9: XC OUT : O : Sub system clock.
pin 10: RESET_ : IN : Reset signal input.