Technics SL-HD505, Service Manual

Page: 28 / 35

Pin
No.
Mark I/O
Division
Function
51 AV
SS2
— GND (analog circuit) terminal
52 EFM O EFM signal output terminal(Not used,
open)
53 PCK O PLL extract clock output terminal
(fPCK=4.321 MHz: normal play)(Not
used, open)
54 VCOF2 — VCO loop filter 2 terminal(Connected
to GND)
55 SUBC O Sub-code serial data output
terminal(Not used, open)
56 SBCK I Sub-code serial data clock input
terminal (Connected to GND)
57 V
SS
— GND terminal
58 X1 IN I Crystal oscillator input
terminal(f=33.8688 MHz)
59 X2 OUT O Crystal oscillator output
terminal(f=33.8688 MHz)
60 V
DD
I Power supply (oscillation circuit)
terminal
61 BYTCK O Byte clock output terminal (Not used,
open)
62 /CLDCK O Sub-code frame clock signal output
terminal (fCLDCK=7.35 kHz: normal
play) (Not used, open)
63 FCLK O Crystal frame clock signal output
terminal
(fCLK=7.35 kHz, double
velocity 14.7 kHz) (Not used, open)
64 IPFLAG O Data error flag output terminal("H":
interpolation) (Not used, open)
65 FLAG O Flag output terminal (Not used, open)
66 CLVS O Spindle servo phase synchro signal
output terminal ("H": CLV, "L": Rough
servo) (Not used, open)
67 CRC O Sub-code CRC check output
terminal("H": ON, "L": NG) (Not used,
open)
68 DEMPH O De-emphasis ON signal output
terminal ("H": ON) (Not used, open)
69 RESY O Re-synchronizing signal of frame
sync.output terminal (Not used, open)
70 IOSEL I Power supply (digital circuit) terminal
71 /TEST I Test input terminal (Connected to
power supply)
72 AV
DD1
I Power supply (analog circuit) terminal
73 OUTL O L ch audio signal output terminal
74 AV
SS1
— GND terminal
75 OUTR O R ch audio signal output terminal
76 RSEL I RF signal polarity designation input
terminal (Connected to power supply)
77 IOVDD I Crystal oscillator frequency
designation input terminal(Connected
to power supply)
78 PSEL I Test input terminal(Usually:"H")
(Connected to GND)
79 MSEL I Output frequency switching terminal
of
SMAC("H":SMCK=8.4672MHz,
"L":SMCK=4.2336MHz) (Connected
to GND)
80 SSEL I Output mode switching terminal of
SUBQ("H":Q-code
buffer using
mode) (Connected to power supply)
15.3. 15.3. 15.3. 15.3. IC703(AN8739SBE2):FOCU IC703(AN8739SBE2):FOCU IC703(AN8739SBE2):FOCU IC703(AN8739SBE2):FOCUS S S S
COIL/TRACKING COIL/TRACKING COIL/TRACKING COIL/TRACKING COIL/ COIL/ COIL/ COIL/
TRAVERSE TRAVERSE TRAVERSE TRAVERSE MOTOR/ MOTOR/ MOTOR/ MOTOR/ SPINDLE SPINDLE SPINDLE SPINDLE
MOTOR MOTOR MOTOR MOTOR DRIVE DRIVE DRIVE DRIVE
Pin
No.
Mark I/O
Division
Function
1 /RST — Reset output terminal (Not used, open)
Pin
No.
Mark I/O
Division
Function
2 NC — Not used
3 IN2 I Motor driver (2) input terminal
4 PC2 I PC2 (power cut) input terminal
5 NC — Not used
6 IN1 I Motor driver (1) input terminal
7 PVCC1 I Power supply (for driver) terminal
8 PGND1 — GND (for driver) terminal (1)
9 NC — Not used
10 D1- O Traverse motor driver (1) output
terminal (-)
11 D1+ O Traverse motor driver (1) output
terminal (+)
12 D2- O Spindle motor driver (2) output terminal
(-)
13 D2+ O Spindle motor driver (2) output terminal
(+)
14 D3- O Tracking coil signal output terminal (-)
15 D3+ O Tracking coil signal output terminal (+)
16 D4- O Focus coil signal output terminal (-)
17 D4+ O Focus coil signal output terminal (+)
18 NC — Not used
19 PGND2 — GND (for driver) terminal (2)
20 PVCC2 I Power supply (for driver) terminal (2)
21 VCC I Power supply terminal
22 VREF I Reference voltage input terminal
23 IN4 I Motor driver (4) input terminal
24 IN3 I Motor driver (3) input terminal
25 RSTIN I Reset input terminal (Connected to
GND)
26 NC — Not used, connected to GND
15.4. 15.4. 15.4. 15.4.
IC403(LC66358C4K97):SYS
IC403(LC66358C4K97):SYS IC403(LC66358C4K97):SYS
IC403(LC66358C4K97):SYS TE
TE TE
TE
M
M M
M CONTROL
CONTROL CONTROL
CONTROL
Pin
No.
Mark I/O
Division
Function
1 STR1 O Key switch 1 det. terminal
2 STR2 O Key switch 2 det. terminal
3 SVRST O Reset signal terminal of servo IC
(IC702)
4 SUBQ I Sub-code data input terminal
5 GATE O Select signal output terminal (Not used,
open)
6 NC — Not used, open
7 SQCK O Sub-code registor clock output terminal
8 BLKCK I Sub-code block signal input terminal
9 DQSY I Reading permission terminal of data
(Not used, connected to power supply)
10 LED
STOP
O LED drive signal terminal
11 LED
PLAY
O
12 HOLD I Not used, connected to power supply
13 /MLD O Command load signal terminal to IC702
14 MDATA O Command data signal terminal to IC702
15 TEST — Not used, connected to GND
16 V
SS
— GND terminal
17 OSC1 I Crystal oscillator connected terminal
(f=4.19MHz)
18 NC — Not used, open
19
20
OSC2 O Crystal oscillator connected terminal
(f=4.19MHz)
21 /RST I Reset signal input terminal
22 MCLK O Command clock output terminal to
IC702
28
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SL- SL-
SL-HD50
HD50 HD50
HD505
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5