Kenwood KVT-719DVD Service Manual page 15

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
29 CIR_STB
30 CIR_MREQ
31 CIR_SREQ
32 CIR_CON
33 EVSS
34 EVDD
35 SDA
36 SCL
37 SIPA_CLK1/SIPA_CLK1
37 SIPA_CLK1/NC
38 SIPA_DATA1/PLL_EN
38 SIPA_DATA1/SIPA_DATA1
39 PGOOD
40 NC
40 STATUS1/SYNC_DET
40 STATUS1/NC
41 DISC_DET/DISC_DET
41 DISC_DET/NC
42 DVD_RESET/DVD_RESET
42 DVD_RESET/MON_SYS_ON
43 DVD_SDA/DVD_SDA
43 DVD_SDA/MON_S_DATA
44 DVD_SCL/DVD_SCL
44 DVD_SCL/MON_M_DATA
45 INV_PWM/INV_PWM
45 INV_PWM/MON_RESET
46 POWER_START
47 POWER_PWM
48 PON
49 PWM/REMO_PWM
49 PWM/PWM
50 HSY (HD)
51 MCNT/PLL_MDATA
51 MCNT/MCNT
51 MCNT/MCNT
52 INV_SW/PLL_CLK
I/O Application
I Standby of media processor
O Request to media processor
I Request from media processor
O Permission to operate media processor
I/O Communication data with E2P
O Communication clock with E2P
O Serial/parallel IC communication clock (KVT/DDX)
O (KOS)
O Enable PLL_IC (KOS)
O Serial/parallel IC communication data (KVT/DDX)
I DC-DC_IC error detection
Cope with the special only when the mechanism
O
endurance jig (KVT)
I Detection of composite signal in the monitor output (KOS)
O
I Detection of disc (KVT/DDX)
O (KOS)
O DVD mechanism resetting (KVT/DDX)
O Monitor µ-com ON/OFF control (KOS)
I/O Communication data with DVD mechanism (KVT/DDX)
O Communication data with monitor µ-com (KOS)
O Communication clock with DVD mechanism (KVT/DDX)
I Communication with monitor µ-com (KOS)
O Inverter frequency control (KVT/DDX)
O Reset of monitor µ-com (KOS)
O DC-DC_IC soft start
O Oscillation frequency control of DC-DC_IC
O Power ON/OFF control
Convert the touch on the screen into the remote
O
controller code (KOS)
O LCD brightness control (KVT/DDX)
I H-SYNC input
O Data output to PLL_IC (KOS/X88FCT special)
O P-MECHA power supply voltage switching (KVT)
O T-MECHA power supply voltage switching (DDX)
O Communication clock with PLL_IC (KOS/X88FCT special)
KVT-719DVD/729DVD
/729DVDY/739DVD
Truth Value
Processing Operation Description
Table
L: Detected (Disc is found)
PWM output
L: Start, H: Stop
PWM output
H: ON, L: OFF
PWM output
PWM output
Count H
H: 7.5V, L: 5V (KVT)
H: 8V, L: 5V (DDX)
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