Kenwood DM-3090 Service Manual page 10

DM-3090
IC1201 VHiLR37648/-1:ENDEC/ATRAC (LR37648)
Terminal Name
Pin No.
1* EFMMON
2 AVCC
3 EFMI
4 AGND
5 AIN
6 EIN
7 TCG
8 BIN
9 FIN
10* VBAT
11 WBI
12 VDD1
13 DGND
14,15 TEST0,TEST1
16 TEST2
17 X176KO
18 FODRF
19 FODRR
20 TRDRF
21 LATCH
22 CLOCK
23 DATA
24 DVCC
25 FOUT
26 EOUT
27 BOUT
28 AOUT
29 TCGO
30* WBO
31 22KI
32 22KO
33 ADLPFO
34 NC
35 ADIPO
36 ADIPI
37 ADAGC
38 ADAGI
39 RF2-1
40 EFMO
41 WFMI
42 AVCC
43 AGND
44 EFMAGC
45 EFMAGI
46 ATTR
47* GOUT
48* POUT
49* PLCK
50 EFM0
51* X700KO
52* EXPORT0
53* EXPORT1
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
10
CIRCUIT DESCRIPTION
Input/Output
Output EFM monitor output
— Analog power
Input EFM signal input from RF amp.
— Analog GND
Input Focus error signal A
Input Tracking error signal E
Input Track cross signal
Input Focus error signal B
Input Tracking error signal F
Input Power voltage detection signal for constant voltage servo
Input ADIP wobble signal
— Digital power
— Digital GND
Input Input for test. Connection to GND in case of normal use
Input Input for test. Endecode/servo mode and ATRAC mode selection
Output Clock output. f=176.4 kHz (4fs)
Output Focus servo forward output. PWM
Output Focus servo reverse output. PWM
Output Tracking servo forward output. PWM
Output Tracking servo reverse output. PWM
Output Slide servo forward output. PWM
Output Slide servo reverse output. PWM
Output Spindle servo forward output or spindle servo output. PWM
Output Spindle servo reverse output or spindle rotation (forward/reverse)selection
Output Address output to external D-RAM. ADR3
Output Address output to external D-RAM. ADR2
Output Address output to external D-RAM. ADR1
Output Address output to external D-RAM. ADR0 (LSB)
Output Address output to external D-RAM. ADR10 (MSB)
— Power supply for DRAM interface
Output Address output to external D-RAM. ADR4
Output Address output to external D-RAM. ADR5
Output Address output to external D-RAM. ADR6
Output Address output to external D-RAM. ADR7
Output Address output to external D-RAM. ADR8
Output Data output enable signal output to external D-RAM
— Digital GND
Output Column address strobe signal output to external D-RAM
In/Output Data input/output from and to external D-RAM. D2
In/Output Data input/output from and to external D-RAM. D3 (MSB)
Output Data input/output from and to external D-RAM. ADR9
Output Low address strobe signal output to external D-RAM
Output Data write enable signal output to external D-RAM
In/Output Data input/output from and to external D-RAM. D1
In/Output Data input/output from and to external D-RAM. D0 (LSB)
Output Track cross signal
Output ADIP CRC error flag monitor output
Output EFM PLL clock output in playback mode
Output EFM signal output in record mode. C1F (C1 error flag) monitor output in playback mode
Output Clock output. f = 705.6 kHz. Clock output is not performed when RSTX = 0.
Output Microcomputer extension output port 0
Output Microcomputer extension output port 1
Function