Sony XM-S400D Service Manual page 8

XM-S400D
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen
(SIDE B) from the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.
• MAIN board is multi-layer printed board. However, the
patterns of intermediate layers have not been included in
diagrams.
• Indication of transistor.
C
Q
These are omitted.
B E
Note 1: Only part of electrical parts that mounted on the
board of this unit can be replaced for repair.
Refer to "6. ELECTRICAL PARTS LIST" about
electrical parts for service.
Since electrical parts that are not described in the
electrical parts list cannot be replaced for repair, re-
place the complete mounted board when these elec-
trical parts are defective.
Note 2: When the complete MAIN board is replaced, be sure
to apply the grease (OIL COMPOUND (KS609)) so
as to cover the IC301 on the MAIN board.
• Waveforms
– MAIN Board –
IC503 5 (CT) IC503 9 (E1), q; (E2)
1 2
3 Vp-p 38.4 s
19.2 s
1 V/DIV, 10 s/DIV 5 V/DIV, 20 s/DIV
XM-S400D
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• C : Panel designation.
• A : B+ Line.
• Power voltages is dc 14.4V and fed with regulated dc
power supply from AMP REM and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: AUDIO
F
Note 1: Only part of electrical parts that mounted on the
board of this unit can be replaced for repair.
Refer to "6. ELECTRICAL PARTS LIST" about
electrical parts for service.
Since electrical parts that are not described in the
electrical parts list cannot be replaced for repair, re-
place the complete mounted board when these elec-
trical parts are defective.
Note 2: When the complete MAIN board is replaced, be sure
to apply the grease (OIL COMPOUND (KS609)) so
as to cover the IC301 on the MAIN board.
3 Q513, 514 (Drain)
14 Vp-p
34.8 Vp-p
19 s
10 V/DIV, 10 s/DIV
• IC Block Diagrams
– MAIN Board –
IC301 TAS5414CTPHDRQ1
64 63 62 61 60 59 58 57 56 55 54 53
OSC
I2C AND
CLOCK
FAULT 1
OVER TEMPERATURE
MUTE 2 WARNING/SHUTDOWN
FAULT
GND 3
AND
CP
STANDBY 4 TIMING OVER/UNDER
AVDD
LOGIC
VOLTAGE
D_BYP 5
CLIP_OTW 6 PVDD
LOAD
GND 7
DUMP
GND 8
GND 9
VREF AND IREF
SUPPLIES
REXT 10 AND AVDD (6.5V)
A_BYP 11 REFERENCES DVDD (3.3V)
CHANNEL
UTILITIES
LOAD
GND 12
DIAGNOSTICS
IN1_P 13 SIGNAL
AND
GND 14 PATH
FAULT
IN2_P 15
MONITORS
GND 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
IC502 S-1142D33I-E6T1U
VOUT 1
OVERCURRENT
PROTECTOR
THERMAL
SHUTDOWN
+ ON/OFF
– CONTROL
VSS 2
REFERENCE
VOLTAGE
ON/OFF 3
8 8
52 51 50 49
48 OUT1_M
47 OUT1_P
46 GND
45 OUT2_M
44 OUT2_P
43 GND
42 CPC_TOP
CHARGE
41 CP
PUMP
40 CPC_BOT
39 GND
38 GND
37 OUT3_M
36 OUT3_P
35 GND
34 OUT4_M
33 OUT4_P
IC503 TL594CDTB-R2
ERROR
AMPLIFIER 1
6 VIN
1IN+
1 +
1IN– 2 –
0.7mA
3
FEEDBACK
5 VSS
PWM
COMPALATOR
4 NC
DTC 4
CTC
COMPALATOR
CT 5
OSCILLATOR
6
RT
GND 7
C1 8
ERROR
AMPLIFIER 2
+ 16 2IN+
– 15 2IN–
REFERENCE
14 REF
REGURATOR
UNDER
VOLTAGE
PULSE-STEERING
LOCKOUT
FLIP-FLOP
CONTROL
C1 1D
OUTPUT CTRL
13
12 VCC
11 C2
10 E2
9 E1