Kenwood DDX 8027 Service Manual

Page 2

DDX8017/8027/8027Y
DDX8037/8047/8067

NOTES ON ASSEMBLING THE MECHANISM

1. Fasten Screw A so that the interval (a) will be about 5.2mm
and the interval (b) will be about 2.6mm (The interval (a)
can be measured using a pair of vernier calipers or similar
tools.)

2. Turn B so that Position (0) will come at about the center of
interval (d).

3. Then, play the test disc and fine tune A or B so that the jitter
value would be minimized.

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DDX8017/8027/8027Y

DDX8037/8047/8067
MICROCOMPUTERS TERMINAL DESCRIPTION

Pin No. Pin Name Module (physical) l/O Application Processing Operation Description
74 OPENicLOSEsOPENicLOSE PANEL | OPEN7CLOSE key (1 DIN) L: ON

74 OPENiCLOSE/EJECT PANEL | Tilt mechanism OPEN/CLOSE and eject (2DIN) L: ON

75 SRC PANEL | Source key L: ON

76 EJECT PANEL | Eject key (1 DIN) L: ON 2D|N Hl-fixed input
77 MINLPON PANEL 0 MINI liquid crystal Power supply control H: ON, L: OFF

78 DSI PANEL O DSI control (1 DIN)

79 lLLiDET Power supply I ILLUMI detection H: Normal, L: Detect
80 PAKiDET Power supply | Parking detection H: Normal, L: Detect
81 REViDET Power supply | Reverse detection H: Normal, L: Detect
82~84 NC 0

85 SHilNl SH-3 O (GRAPHIC)

86 SHisTBY SH-3 | (GRAPHIC)

87 SHisREQ SH-3 | Request from SH-3 p-com (GRAPHIC)

88 SHiMREQ SH-3 0 Request to SH-3 p-com (GRAPHIC)

89 SHiCON SH-3 O (GRAPHIC)

90 SHiRST SH-3 o SH-a u-com resetting (GRAPHIC)

91 TOUCH SH-S | (GRAPHIC)

92 TOUCHiEN SH-3 O (GRAPHIC)

93 NAVLL VIDEO 0 L: NAVI, H: OTHER
94~97 TYPEO~TYPE3 EXTRA | Destination setting Refer to destination setting
98 SUBLEDioFF Other X35 0 2D|N disc LED control (2DIN)

99 TMOTOFLM 1D|N7MECHA 0 Monitor mechanism tilt control (1 DIN)

99 TlLTiUP 2D|N7MECHA O Tilt mechanism control (2DIN)

100 TMOTORiP 1D|N7MECHA 0 Monitor mechanism tilt control (1 DIN)

100 TILTiDOWN 2D|N7MECHA O Tilt mechanism tilt control (2DIN)

101 SMOTORiM 1D|N7MECHA 0 Monitor mechanism slide control (1 DIN)

102 SMOTORiP 1D|N7MECHA 0 Monitor mechanism slide control (1 DIN)

103 BVSS

104 BVDD

105 SW7A 1D|N7MECHA | Monitor mechanism detection(1 DIN) 2D|N is OUT

106 SW7B 1D|N7MECHA | (1 DIN) 2D|N is OUT

107 SW70 1D|N7MECHA | Monitor mechanism detection 2D|N is OUT

108 SW7D 1D|N7MECHA | Monitor mechanism detection 2D|N is OUT

109 ENABLE INVERTER O Backlight ON/OFF control H: ON

1 10 FLMD1 pCOM |

111 Y0 Touch panel 0 Touch panel control (OSD)

112 X1 Touch panel 0 Touch panel control (OSD)

113 X0 Touch panel 0 Touch panel control (OSD)

114~117 HPOS1~HPOS4 LCD 0 Display position control

118~120 MODE1~MODE3 LCD 0 Aspect setting

121 MIRROR LCD 0 Rear monitor mirror control

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Page 41

ADJUSTMENT

DDX8017/8027/8027Y

DDX8037/8047/8067

Test Mode Adjustment Value
Adjustment Item Adjustment Method Condition
Display (Temporary)
Gamma 1 CH : 11 Monitor waveform of 59 pin TP:VG of CN905 with an 3.0Vi0.05V Input signal
Adjustment oscilloscope and adjust the oscillation width of fonNard : None
rotation-side pedestal and forward rotation-side Step 9. Input signal
Gamma 2 CH : 12 Monitor TP: VG waveform of 59 pin of CN905 with an 3.3Vi0.05V : 1O STEP (NTSC)
Adjustment oscilloscope and adjust the oscillation width of forward 1Vpp V/S ratio
rotation-side pedestal and forward rotation-side Step 10. :7:3 (7552 terminated)
Ft Sub-Brightness CH :8 Monitor waveform of 58 pin TP:VFt and 59 pin TP:VG ot 0.1V:0.05V X34 AVIN input
Adjustment CN905 with an oscilloscope and adjust so that the pedestal Oscilloscope range
of Step 1 of the forward rotation side of TP:VR will be :500mV/DIV
0.1Vpp higher than the pedestal of Step 1 of the tomard AC
rotation side of TP: VG.
B Sub-Brightness CH :9 Monitor waveform of 60 pin TP: VB and 59 pin TP: VG ot OVi0.05V
Adjustment CN905 with an oscilloscope and adjust so that the pedestal
to Step 1 of the forward rotation side of TP:VB will be the
same as the pedestal to Step 1 of the lonNard rotation
side otTP: VG.
Ft Sub-Contrast CH : 14 Monitor waveform of 58 pin TP:VFt and 59 pin TP:VG ot 0.1V:0.05V
Adjustment CN905 with an oscilloscope and adjust so that the pedestal
to Step 9 of the forward rotation side of TP: VFt will be
0.1Vpp higher than the pedestal to Step 9 of the torward
rotation side of TP: VG.
B Sub-Contrast CH : 15 Monitor waveform of 60 pin TP:VB and 59 pin TP: VG of 0Vi0.05V
Adjustment CN905 with an oscilloscope and adjust so that the pedestal
to Step 9 of the forward rotation side of TP: VB will be the
same as the pedestal to Step 9 of the forward rotation
side of TP: VG.
V-COM Amplitude CH : 1 Monitor waveform of 39 pin TP:VCOM ol CN905 with an 2.15Vppi0.05V

Adjustment

oscilloscope and adjust the oscillation width ot the VCOM

rectangular wave.

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