Kenwood DDX 6039 HU Service Manual

Page 9

O SYSTEM MICROCOMPUTER: 703266YGJ504A (X34: |C304)

DDX6019/6029/6029Y/6039

MICROCOMPUTERS TERMINAL DESCRIPTION

Pin No. Pin Name IIO Application Jame Procssing Operation Dscription
1 AVREFO
2 AVSS
3 VMUTE3 O MUTE to free-run timing controller H:When FULL OSD, L:When EXCEPT
4 VMUTE2 0 Switching chroma input SYNC H: When FULL OSD, L: EXCEPT
5 AVREF1
6 PWM O DIMiPWM output timing count Duty100%: Brightness MAX, 150Hz
7 HSY l Backlight (BRIGHT) brightness adjustment Normally: PMW CLK for control
Chroma adjustment mode: RGB timing detection

8 FLMDO
9 VDD
1O REGC
1 1 V88
12 X1
13 X2
14 RESET
15 XT1
16 XT2
17 OSDiRST 0 Reset to OSD-IC L: RESET
18 VSY l PWM output trigger
19 SRO | Source KEY detection L: SOURCE pressed
20 DRST 0 NC L fixed
21 OSD7CS 0 Chip select to OSD-IC
22~24 NC 0 NC LOW is fixed at L
25 DVSisYsiDATA 0 Data output to DVS-7600
26 DVSiBEiDATA I Data input from DVS-7600
27 DVSiBEicLK l Clock input from DVS-7600
28,29 NC 0 NC L fixed
30 REMO l Remote control data input
31 NC 0 NC L fixed
32 NC 0 NC L fixed
33 EVSS
34 EVDD

SisDA/ ROM correction E2PROM communication Please refer to the truth value table for slave
35 SiROMicoRR 0 data input/output @ address
35 SisDA/EZPisDA O Chroma IC adjustment E2PROM control E2PROM communication

SisCL/ ROM correction E2PROM communication Please refer to the truth value table for slave
36 SiROMiCORR O clock output @ address
36 SiscL/E2P78CL O Chroma IC adjustment E2PROM control E2PROM communication
37 REGiF- O SWReg external sync Pulse output. Reversed phase of REG7F+
38 REG7F+ O SWReg external sync Pulse output
39 NC 0 NC L fixed
40 CRMiCS O Chroma IC control (RBSPOOQO)

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DDX6019/6029/6029Y/6039

ADJUSTMENT

5. After R-output adjustment, press Adjustment Item switch
key and switch the adjustment item to Phase.
Monitor B-output and vary the Phase values and adjust so
that oscillation width for horizontal scanning period would
be unified, using the UP/DOWN key of the remote control-
ler. (Refer to Fig 2 and Fig. 3.)
In Fig. 2, B-output oscillation widths are not unified.
In Fig. 3, however, the oscillation width of each horizontal
scanning period of B-output are unified.
6. After adjustment, press Final Selection key.
When the Final Selection key is pressed, OSD in upper
left corner of the screen will change its color to green.
7. Then, press End key. When Write OK is displayed, the
adjustment is complete.
Press End key again to exit from Chroma Func Adjustment.

0 y Adjustment
By operating the touch panel key, adjusted automatically.

Ad'ustment method
From the Test Mode Main screen, press Chroma Auto 1.

Test Mode Main
[ Information 3 ( Source 1
[ Service J ( Set Up J
[ Touch ) [ Audio ]
[ Hpcsr ] ( Chroma Auto I )
[ MECHA ADJ ) [ Chroma Func ]

Mmation after ad'ustment

- Auto Set OK is displayed.

- In the lower rows 8 steps, the tone changes, from the left to
the right, gradually from dark to light.

Auto Set OK

Return

O Flicker Adjustment
While checking the waveform with an oscilloscope. adjust with
the volume resistance.

WWW)
Video Source: VIDEO
Video: Luster white 30%~50%
BRIGHT: MAX
MODEL: ZOOM

Ad'ustment procedure

1) Display luster white 30%~50% is displayed.

2) Place a flicker adjustment jig to the monitor and observe
the waveform with an oscilloscope.

3) Turn VRtOO and adjust to make the amplitude of the wave-
form to minimum.

AVPAV

Oscilloscope range: 20mV, 0.5mS
(setting at the time of 04 commercial production)

29

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DDX6019/6029/6029Y/6039

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R3311 07K

CAUTION : For continued safety, replace safety
critical components only with manufacturers recom-
mended parts (refer to parts list).

A Indicates safety critical components. To reduce
the risk of electric shock, leakage-current or resis-
tance measurements shall be carried out (exposed
parts are acceptably insulated from the supply cir-
cuit) before the appliance is returned to the cus-
tomer.

Bua 3w

- DC voltages are as measured with a high imped-
ance voltmeter. Values may vary slightly due to

variations between individual instruments or/and

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DDX6019/6029/5029Y/6039 (2/4)

X34-439x-xx A/2 (4/4) 53