Technics SU-X955 Service Manual

Function
al for the control of the TUNER LED.
ate te the LED lights up.
al for the control of the PHONO LED.
es the LED lights up.
al for the control of the DAT LED.
ee the LED lights up.
al for muting the VTR recording.
al for the control of the MUTING LED.
gg dete the LEO lights up.
>E RECEPTION
(PU) terminais are “pulled up”.
7
Function
nection terminal (+5 V).
2 adjustment of the VCO oscillation frequency, but it is not used in this unit
denser terminal for the VCO circuitry.
nection terminal of the system.
inal for the crystal vibrator (16.9344 MHz).
nal for the crystal vibrator.
LL circuitry is activated when the DIN terminal receives an input signal.
wise, the crystal vibrator is activated.
/stal vibrator is activated, regardless of the DIN terminal input.
@ 16.9344-MHz frequency when the crystal vibrator functions. When the PLL
he frequency varies according to the speed of input data of the DIN terminal
Hz when it is 44.2 kHz).
ee ee ae |
terminal is divided into a third of that of terminal @A when the crystal vibrator
LL circuitry is activated, the frequency varies according to the speed of input data
= about 16.9344 when it is 44.2 kHz).
nal for checking the internal circuitry.
nal for checking the internal circuitry.
e-clock signal from the DO terminal.
Ichronization signal.
nection terminal of the system (+0 V).
an the left channel is output from the DO terminal.
n the right channel is output from the DO terminal.
data is emphasized.
lata iS not emphasized.
checking data output to the DO terminal.
the signal for the right channel.
the signal for the left channel.
al, H=Erroris found during parity check L=No errors
—
-signai of the sub code output.
ib code.
ode data.
-26-
e@1C806 (YM3404B) Digital filter
Pin
No. Mark vo Function
Eats! 2 Hr} LiReh Begitener signal
2 xo O | Clock output ~
3 x1 ( Clock input
4 VDD2 1 Power supply (connected to + 5V)
5 BCI | | Bit clock input (input data) ~
6 SDSY 4 R/L signal ,
7 SDI t Data input
8 vDD1 | Power supply (connected to + 5V)
9 DLO oO 1DAC(ST ="L”): L/Rch data output terminal
2DAC(ST =H"): Lch data output terminal
10 RDO O | Rch data output (not connected)
W WwCcO © | Output data word clock
12 BCO O | Bit clock output (output data)
13 vss i : GND terminal
14 ST | | 1DAC/2DAC selector terminal
15 FEN | System clock selector terminal
[ 16 SHR °
IDAC{(SP =”L”): Rch deglitch signat
4
m@ RESISTORS AND CAPACITORS
Notes : * Important safety notice :
Components identified by A\ mark have special characteristics important for safety. When replacing any of these components use only
manufacturer’s specified parts.
* Bracketed indications in Ref. No. columns specify the area. (Refer to the first page for area.)
Parts without these indications can be used for all areas.
Resistor Type Wattage
Numbering System For Resistors
Exampie:
ERD 25 F J 102
Type Wattage Shape Tolerance Value
(1/4W) (KO)
ERX 2 AN J 471
Type Wattage Shape Tolerance Value
(2W) (470)
Numbering System For Capacitors
Example:
ECKD 1H 402 Zz F
Type Voltage Value Tolerance Unique
(50V) (0.001 pF)
ECEA 50 M 330
Type Voltage Characteristics Value
(50V) (33,1F)
@ Capacity values are in microfarads (UF) unless specified
otherwise, P=Pico-farads (pF) F=Farads (F).
@ Resistance values are in ohms (Q), unless specified
otherwise, 1K = 1,0000, 1M= 1,000kQ
EROSZTJATI
ERDS2T J471
ERDS2T J224
ERDS2T J224
ERDS2T J331
ERDS2T J331
ERDS2T J473
ERDS2T J563
ERDS2T J473
ERDS2T J563
ERDS2T J331
ERDS2T J331
ERDS2T J680
ERDS2T J680
ERDS2T J184
ERDS2T J184
ERDS2T J123
ERDS2TJ123
ERDS2T J104
ERDS2T J104
ERDS2TJ102
ERDS2T J102
ERDS2T J822
ERDS2T J822
ERDS2TJ102
ERDS2TJ102
ERDS2TJ102
ERDS2TJ102
ERDS2TJ471
ERDS2T J471
ERDS2T J182
ERDS2T J182
ERDS2T J472
ERDS2T J472
: Carbon
: Metal Oxide
: Fuse Type Metal
: Metal Film
: Carbon (chip)
: Metal Film (chip)
: Solid
: Incombustible
Box-Shaped
: Wire-Wound
: Chip Resistor
: Chip Resistor
: Electrolytic
; Ceramic
: Ceramic Capacitor
: Polyester
: Potypropylene
: Ceramic
: Non Polar Electrolytic
: Ceramic (Chip Type)
: Ceramic (Chip Type)
: Semiconductor
: Liquid electrolyte
ERDS2TJ102
ERDS2TJ102
ERDS2T J&21
ERDS2T J&21
ERDS2TJ102
ERDS2TJ102
ERDS2T J3a2
ERDS2T J3a2
ERDS2T J332
ERDS2T J332
ERDS2TJ122
ERDS2T J223
ERDS2T J223
ERDS2T J223
ERDS2T J152
ERDS2TJ162
ERDS2FJ102
ERDS2TJ108
ERDS2TJ108
ERDS2TJ103
ERDS2T J224
ERDS2T J224
ERDS2T 104
ERDS2T J104
ERDS2T J331
ERDS2T J331
ERDS2T J224
ERDS2T J224
ERDS2T J223
ERDS2T J223
ERDS2T J223
ERDS2T J223
ERDS2T J332
ERDS2T J332
ERDS2T J223
ERDS2T J383
ERDS2T J223
ERDS2T J393
ERDS2T J223
ERDS2T J223
ERDS2T 223
ERDS2T J822
double layer capacitor
RRNSRERGQRNNRRSSBBSSSS
rs
-27-
16.3V
1 16V
: 50V
: 50V
: 500V
+ 100V
: 400V AC
1 125V AC
(UL)
12: V2W
25: 1/4W
18: 1/8W
$1: 1/2W
50: 1/2W
3A: 3W
8G : 1/8W
TA: 10V
1E : 26V
WW : 35V
05 : SOV
2A: 100V
J: 63V
ERDS2T J562
ERDS2TJ123
ERDS2T J224
ERDS2T J332
ERDS2T J332
ERDS2T J32
ERDS2T J382
ERDS2T J392
ERDS2TJ104
ERDS2T J104
ERDS2T Ji22
ERDS2T J105
ERDS2T J334
ERDS2T J103
ERDS2T J103
ERDS2TJ103
ERDS2TJ103
ERDS2T J122
ERDS2T J122
ERDS2T J392
ERDS2T J382
ERDS2T J103
ERDS2T J103
ERDS2T J273
ERDS2T J273
ERDS2T J103
ERDS2TJ103
ERDS2T J122
ERDS2T J223
ERDS2T J223
ERDS2T J563
ERDS2T J563
ERDS2T J333
ERDS2T J333
ERDS2TJ821
ERDS2T J821
ERDS2T J391
ERDS2TJ391
ERDS2T J273
EROS2T J273
ERDS2T J153
ERDS2T J153
K; £10%
mM: £20%
5%
ȣ2%
> £1%
: £0.25pF
: to.SpF

Technics SU-X955 Specifications

General

Brand	Technics
Model	SU-X955
Category	Amplifier
Language	English