Technics SL-P999 Service Manual

SL-P999
Mi TERMINAL FUNCTION OF IC’s
e 1C101 (AN8373S): Servo amp. e 1C102 (AN8374S): Servo processor
AMP1 RF signal input (X30 amp.) Tracking error signal output Phase difference input (A)
PDAD Photo detector current input (A2) Focus error signa! output Phase difference input (B}
i
Focus
gain
up
signal
input
P
:
Photo detector current input (A1) (Not used, connected to GND) Tracking offset adjustment
F
Tracking
gain
up
signal
input
PDBD
Photo
detector
current
input
(A4)
(Not
used,
connected
to
GND)
;
Focus/tracking gain down signal Tracking gaitvaivetmens
Photo detector current input (A3) input (Not used, connected to GND)
Non-inverting laser power input Position detecting amp. output Tracking error signal output
4 Fi Tracking error gain detecting filter
: (Not used, open)
7A8)
Division
1/0
Division
1/0
Division
VO
Division
Power supply (+5 V input)
Track crossing speed control output
output (Not used, open)
Selector output (track crossing
state)
Focus lock signal output
Track kick signal output
Laser power control output
Focus/tracking gain up output
(Not used, open)
Control! input (FOON: Focus
servo ON signal)
Control input (TRON: Tracking
servo ON signal)
Control input (KICKF: Kick
direction (forward) command)
nN NO
= >
Vv i] 1]
LS.
N N
=f
vu
[e)
>
23
n
LSB PCNT
N a
nn
v
°
TEOFS
N
£
nn
Qo fo)
a
4
R
4 m
N on
Ww] w N =| 90 NY Oo
Q)
Oo
TGC
TEG 26 FLOCK
PTO 27 KICK
“|
E OUT
LS)
28
PTI
28
LDON
4
E BPF
29 VDET
nN o
v0
o Oo
FE
Qo
RF detection signal output
Dropout detection pulse output
2
1 FOOFS
PD balance adjustment
w
POT
E
OUT
ie)
CNT1
Focus error signal output
Triangular wave oscillator
capacitor input
Reference voltage input
RF signal input
Data slice filter capacitor input
BDO
CNT2
i?) -
7
=
Tracking balance adjustment
Focus offset adjustment
Current/voltage conversion
output (A)
REDET
32
CNT3
< REF
Ww
nN
33 CNT4
Control input (KICKR: Kick
direction (reverse) command)
Traverse forward command signal
>
=)
mn
C.
SBDO
CDSL
34
TRVF
BE
Bl Oo
n 0 ie}
Fe, ail, 1 Dropout detecting capacitor input
fe)
peti
eonwession
35
ARF
|
oo
|
RF
signal
output
FPC
Frequency
difference
signal
input
35
TRVR
Traverse
backward
command
signal
FE
ie)
Focus
gain
adjustment
output
36
c.
AGC
ee
AGC
detecting
capacitor
input
GND
36
RFDET
RF
detection
signal
input
w N
a Oo °
Cc. PLL Dropout detection input
Power supply (+5 V input)
Traverse position detecting
resistor/capacitor inputs
Tracking drive control output
Tracking error signal input
vcc
PLL loop filter constant
Frequency pull-in clock signal
(88.2 KHz) input
Sliced and digitized RF signal
output
Clock output extracted from SRF
EFM signal output synchronous
with PCK
I Focus error signal input
TPI I
Hw ~
Power supply (+5 V input)
Laser power control input
RF signal input
RF signal output
Reference voltage output
Ground terminal
vcc
fee]
VSS
w
foe)
LDON
=
~
Tracking error signal input
= = = -_
CLK 39 TVPO
Ww wo
Tracking error filter capacitor RF IN
input
AMPO SRF TVPI
41 VREF BROUT
Focus error filter capacitor input
-
iS)
nN
=
N
vu
Q
A
e 1C103 (AN8377): BTL drive
Oo 1/0
Division Division
PVCC Driver power supply (+8.7V input) TD— Wee output of tracking
, Non-inverting output of
External transistor base
driving output
=f
ao
Inverting output of focus driver
FD-—
MON
Voltage
output
FDt+
Non-inverting
output
of
focus driver
TVDI | Traverse error signal input | error signal input 3 | tvo- | ia CUIDUL Of Eaverse
traverse driver
TDI Tracking error signal input 5 RESET | Reset signal output | signal output
VREF
_= = a
NR
vu
ie)
PC input (connect to GND)
Reference voltage input
==
19)
==
—
29
—

Technics SL-P999 Specifications

General

Brand	Technics
Model	SL-P999
Category	CD Player
Language	English