Panasonic SA-PM30MD Service Manual page 29

Pin Mark I/O
No.
80 SPMWE O SPM take in test signal output
terminal
12.5. IC72 (MNV4400-T8T) : 4M DRAM
Pin Mark I/O
No.
1 DO1 I/O DRAM data 1 in/output terminal
2 DO2 I/O DRAM data 2 in/output terminal
3 WE I DRAM light enable input terminal
4 RAS I DRAM low address strobe input
terminal
5 A9 I DRAM address 9 input terminal
9 A0 I DRAM address 0 input terminal
10 A1 I DRAM address 1~3 input terminal
~12 ~A3
13 VCC I Power supply terminal
12.6. IC701 (AN8837SBE1) Servo Amplifier
Pin Mark I/O
No.
1 PDE I Tracking signal input terminal 1 (E ch)
2 PDF I Tracking signal input termianl 2 (F ch)
3 VCC I Power supply connection
4 PDA I Focus signal input termianl 1 (A ch)
5 PDB I Focus signal input terminal 2 (B ch)
6 LPD I Laser PD connection
7 LD O Laser power auto control output
8 RF O RF signal output
9 RFIN I RF signal input
10 CSBRT I Capacitor for detection connection
11 CEA I Capacitor
amplifier
12 BDO O BDO output ("H" : drop out)
13 LDON I LD APC input ("H" : ON, "L" : OFF)
14 GND — Ground connection
15 /RFDET O NRFDET output ("L" : detection)
12.7. IC702 (MN662790RSC) Servo Processor / Digital Signal Processor /
Digital Filter / D/A Converter
Pin Mark I/O
No.
1 BCLK O
2 LRCK O
3 SRDATA O
4 DVDD1 I
5 DVSS1 I
6 TX O
7 MCLK I
8 MDATA I
9 MLD I
10 SENSE I
11 /FLOCK O
12 /TLOCK O
Function
Function
Function
connection for HPF
Function
Bit Clock Output for Serial Data
L/P Clock Signal Output
Serial Data Output
Power Supply Input (for Digital
Circuit)
Ground (for Digital Circuit)
Digital Audio Interface Signal
Output
(Latches Data at first
Transistion)
Microprocessor Command
Clock Signal Input
Microprocessor Command Data
Signal Input
Microprocessor Command Load
Signal Input
Sense Signal Output (OFT,
FESL, MAGEND, NAJEND,
POSAD, SFG)
(Not Used, Open)
Focus Servo Feeding Signal
Output
("L": Feed)
Tracking Servo Feeding Signal
Output
("L":Feed)
Pin Mark I/O
No.
14 A4 I
~18 ~A8
22 OE I
23 CAS I
24 DO3 I/O
25 DO4 I/O
26 VSS —
Pin Mark I/O
No.
16 CROSS O
17 OFTR O
18 VDET O
19 ENV O
20 EMOFF I
21 TEBPF I
22 TEN I
23 TEOUT O
24 FEOUT O
25 FEN I
26 VREF O
27 TBAL I
28 FBAL I
Pin Mark I/O
No.
13 BLKCK
14 SQCK
15 SUBQ
16 DMUTE
17 STAT
18 /RST
19 SMCK
20 CSEL
21 TRV
22 TVD
23 PC
29
Function
DRAM address 4~8 input terminal
DRAM output enable input terminal
(Not used, connected to GND)
DRAM calam address strobe input
terminal
DRAM data 3 in/output terminal
DRAM data 4 in/output terminal
GND terminal
Function
CROSS output (Track cross signal
output
Off-track output ("L" : ON track, "H" :
OFF track)
VDET output ("H" : Vibration detected)
RF envelope detection
Not used, connected to power supply
Cscillation detect signal input
Tracking error signal input
Tracking error signal output
Focus error signal output
Focus error signal input
Reference voltage output
Tracking balance signal input
Focus balance signal input
Function
O Sub-Code Block Clocl Signal
Output
(fBLKCK = 75Hz during Normal
Playback)
I External Clock Signal Input for
Sub-Code Q Resistor)
O Sub-Code Q Code Output
I Muting Input ("H": Mute)
O Status Signal Output
(CRC, CUE, CLVS, TTSTVP,
FCLV, SQCK)
I Reset Signal Input
O 1/2 - Divided Clock Signal of
Crystal Oscillating at MSEL=
"H" (fSMCK=8.4672 MHz)
1/4 - Divided Clock Signal of
Crystal Oscillating at MSEL= "L"
(fSMCK=4.2336 MHz)
I Frequency Selection Terminal
H= 33.8688 MHz; L= 16.9344
MHz
O Traverse Forced Feed Output
O Traverse Drive Output
O Traverse (Spindle) Motor ON
Signal Output ("L":ON)
SA-PM30MD