Kenwood KDC 4027 Service Manual

Page 8

KDC-2027SA/SAY/SG/SGY, 3027A/AY/G/GY
KDC-SOSA/AY/G/GY, 4027/V/VY/Y, F327A/G

0 CD MECHANISM CONTROL |C :789166YGB-A513 (X32 : IC1)

MICROCOMPUTERS TERMINAL DESCRIPTION

Pin No. Name [/0 Description Processing Operation
1 ~63 NC | NC GND
Less than 54h : NORMAL,
7 ZMUTEiL | 0 bit MUTE detect (Lch)
More than 54h : ZMUTE detect
Less than 54h : NORMAL,
8 ZMUTEiR | 0 bit MUTE detect (Rch)
More than 54h : ZMUTE detect
9 AVss - DGND
1O /MUTE7L O Lcn Audio mute control L: MUTE ON, H : MUTE OFF
11 /MUTE7R O Rch Audio mute control L : MUTE ON, H : MUTE OFF
12 /MSTOP I Interruption for stand-by L :STOP, H : Release for STOP mode
13 INTQ I Interruption for DSP IC H : Interruption
14 /FOGUP I Interruption for focus gain up L : Fo GAIN UP, H :NOFIMAL
15 PON 0 Power ON/OFF control H : ON, L : OFF
16 /SCK O (for DSP) serial data clock output
17 Vdd1 - BU5V
18 SO 0 (for DSP) serial data output
19 SI I (for DSP) serial data input
20 /CLK I/O (for system control) I2C clock
21 DATA I/O (for system control) I2C data
22 Vpp - (FLASH saving terminal)
23 XT2 - NC OPEN
24 XT1 | NC GND
25 /MFIESET | Reset detect L : FIESET, H :NORMAL
26 X2 - System clock 4.19MHZ
27 X1 I System clock 4.19MHZ
28 VssD - DGND
29 VddO BU5V
3O LOE&LIM78W I Loading end & limit SW detect L: Inside detect, H : Outside
31 DRViMUTE 0 Driver muting L : MUTE ON, H : MUTE OFF
32,33 NC 0 NC OPEN
34 /SEFICH 0 Condition 01 serch state L : Search, H : NORMAL
35 /STB 0 Data strobe signal output
36 A0 0 Command & parameter signal output
37 Vss1 - DGND
38 /DSP7RESET O DSP reset control L : FIESET, H :NORMAL
39~41 NC 0 NC OPEN
42 /PON 0 Power ON/OFF control L : ON, H : OFF
43 Avdd - BUSV
44 Avref - BU5V