Kenwood KDCMP 738 U Service Manual

Page 7

KDC-MP738U/W754I U
/W7541 UY/X792/X8009U
MICROCOMPUTERS TERMINAL DESCRIPTION

Pin No. Pin Name l/O Application VIII'IIaIIIIe Processing / Operation / Description
35 NC (D5V7DIS) 0 Not used Output L fixed
Panel LED H: ON, Hi-Z: OFF
36 PONJLL I/O FL filament power supply Turned OFF when the display is black out.
FL bias power supply control Turned OFF when panel is dismounted/opened.
37 NC 0 Not used Output L fixed

H: ON, Hi-Z: OFF
Power supply for panel u-com _ _
38 PONiPANEL I/O _ _ _ Turn OFF when panel is dismounted/opened or
Required for panel authentication .
when power is off.

39 ROMCORiDET I ROM correction writing-in request H: Can re-write ROM (ROM correction)(l20 is open)

EPM input terminal for re-writing ROM. ROM is

39 EPM I re-writable when the input is L at the boot up.

40 CDiMOTOR 0 CD motor control terminal (2) Refer to the truth value table

41 CD,LOE,LIM,SW I CD detection terminal (Chucking detection) H: Loading completed, L: No disc is found:

42 CD,LOS,SW I CD loading detection terminal L: Ejection completed:

43 CD,D|SC12,SW I CD disc detection terminal (12cm) L: 12cm disc

44 PAN,SC,OON 0 Panel operation control terminal , H: In normal condition, L: Stop the panel.
CE when the system u-com is re-written

45 CDiLOEJ I/O CD motor control terminal (i) Refer to the truth value table

46 S,SOC,REQ I SOC ~> System u-com communication request

47 SOC,STOP O SOC stop terminal H: Normal, L: Stop SOC:

48 SOC,RST O SOC reset terminal H: Normal, L: Reset

49 SisYSiREQ 0 System u-com ~> SOC communication request

50 SOC,MUTE l SOC mute request L: MUTE request, H: In normal condition

51 PON7D5V I/O 5V power supply control terminal for FL filament, H: ON, Hi-Z: OFF
panel, and USB:

52 PON l/O Power supply control terminal H: ON, Hi-Z: OFF

53 OEMiDISPiDATA I/O External display DATA External display

53 NC 0 Not used (Model without OEMiDISP) Output L fixed

54 OEMiDISPicLK I/O External display CLK External display

54 NC 0 Not used (Model without OEMiDISP) Output L fixed

55 OEM,DISP#CE l/O External display control request External display

55 NC 0 Not used (Model without OEMiDISP) Output L fixed

56 PiCON I/O PCON control terminal POWER ON: H' POWER OFF: HIZ

STBY source: Hi-Z

TUNER source: H, POWER OFF: L

57 ANT,CON O ANTCON control terminal STBY source: L

58 NC 0 Not used Output L fixed

59 ILLUMLDET I Dimmer illumi detection L: ON, H: OFF

60 V002

61 MUTE70 o ic-2 FRONT MUTE control L: Mme ON Independent semp °f_t_'me
constant 10ms, H: In normal condition

62 V88

63 MUTE71 O IC-2 REAR MUTE control L: Mute ON, Independent setup of time

constant 10ms, H: In normal condition

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KDC-M P738U/W754l U
/W754l UY/X792/X8009U

TEST MODE

0 Dual Zone

0 If the [AUTO] or [Tl] keys is pressed briefly while in a
source other than STANDBY, 2ZONE is switched be-
tween ON / OFF

0 Backup current measurement
|f reset while in Acc OFF (Back Up ON) condition, MUTE
terminal goes off 2 seconds later, rather than 15 seconds.
(During this time, the CD mechanism does not function.)

0 OPEL communication (OPEL/OEM display sup-
porting model)
OPEL communication Iine while in the test mode outputs
the following. (Communication line output condition is
switched every 500msec.)

O G sensor display (G-Analyzer supporting model)
Press [ATTJ key briefly in the STANDBY source to change
to the G-TEXT display that shows the vertical G and hori-
zontal G conditions.

0 Special displays while all lights are on
When all lights are on with STANDBY source, if the fol»
lowing keys are pressed, the following messages are dis-
played.

[FM] Key pressed briefly: ROM correction version is displayed
key (Display) SYS,ROM,R1234

(Display) PAN7R0M7R1234

(Display) BOLiROM7R1234

When E2PROM is not installed: ROMiERR,

When not written in: ROMiR - - - -

When data not matching: ROM7R****

[nyI Key pressed briefly: AUDIO data initialization
key (Display) AUDilNIT

[I44] Key pressed briefly: Forced Power OFF data displayed.
key Press and hold: To clear the forced power OFF infor-
mation. (Press and hold for 2 seconds while the forced
power OFF data is displayed.)
(Display) POFFg - - - (No Forced Power OFF)
SEC (Forced Power OFF because of
missing Security Code)
PNL (Forced Power OFF because of
system p-com and panel commu-
nication error)

[AUD] Key pressed briefly: iPod authentication lC installation
key status display
(Display) iPod, OK, (Installation status OK)
NG (Installation status NG)
[FNC] Key pressed briefly: Multi-function display
key Press and hold: Version & Sen/ice information display
mode ON
Refer to the Table 1.
[1]~[6] Key pressed briefly: Version & Service information display
Key mode ON
Refer to the Table 1.
[HI] Key pressed briefly: CD information display mode ON
key Refer to the Table 2.

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