Sony TA-MR2ES Service Manual ▷ View online
5
5
TA-MR2ES
TA-MR2ES
SECTION 3
DIAGRAMS
POWER SWITCH board
STOPPER board
LED board
VR board
JUMPER board
TACT SWITCH board
ID board
AMP board
INLET board
• Circuit Boards Location
For Schematic Diagrams.
Note:
• All capacitors are in
Note:
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
• %
: indicates tolerance.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
No mark: POWER ON
No mark: POWER ON
*
: Imposible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
For Printed Wiring Boards.
Note:
•
Note:
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
B
These are omitted.
C
E
Q
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
6
6
TA-MR2ES
TA-MR2ES
3-1. BLOCK DIAGRAM – AUDIO SECTION –
• Signal Path
: AUDIO
• R-CH is omitted due to same as L-CH.
3
2
1
IC300
BUFFER
IC301
BUFFER
3
2
1
R-CH
J300
L
R-CH
R
AUDIO IN
L
R
AUDIO OUT
3
2
1
IC305
AUDIO SENSE
VRIN
8
OUT 23
TRIM
TRIM
LA
T
CLK
24
20
DATA
8
16
13
17
25
IC303
ELECTRIC VOLUME
IN2
8
+VOUT2 12
NF2
–VOUT2
8
11
9
IC601
POWER AMP
Q653
BOOSTER
Q651,652
LIMMITER
CONTROL
IC405
BUFFER
IC400(1/2)
SYSTEM CONTROLER
VDD
VSS
14
13
12
11
10
9
8
1
2
3
4
NC
NC
5
NC
6
7
Q300,350
DET
VOL CLK
51
VOL STB
31
VOL DA
T
52
SPK RELA
Y
44
PROTECTOR
25
AUDIO SENSE
+5V
8
15
IC304
OP AMP
5
6
7
Q654
BOOSTER
Q655,656
CURRENT
DETECTOR
Q607,608,609
PROTECTOR
RY202
Q201
RELAY
DRIVE
R-CH
+12V
L-CH
TM650
SPEAKER
TM600
7
7
TA-MR2ES
TA-MR2ES
– MAIN/POWER SECTION –
IC204
+3.3V REG
IC200
+12V REG
IC201
+5V REG
S400
LEARNING
3.3V
IC404
I/O CONTROL
VCC
IC400(2/2)
SYSTEM CONTROLLOR
ID0
IR ID
ID1
ID2
ID3
IR
IR LEARNING
50
ID1
54
ID2
57
ID3
55
ID4
59
A/DO
X0
Y1
X1
X-X
Y-
Y
3
A/DI
4
AUDIO MODE
34
12V MODE
35
IR MODE
33
IRSIG OUT
13
53
12
5
CARRIER FREQUENCY
4
58
2
1
3
6
11
10
9
8
AUTO POWER SELECTOE
12V TRIGGER
IR IN
AUDIO SENSING
+12V
S404-406
LED2 37
Q408
LED DRIVE
D406
IN USE
LED1 38
Q409
LED DRIVE
D405
IN USE
LED0 39
SDA
Q415
LED DRIVE
D404
ON
5
6
IC401
8bit
EEPROM
46
POWER RELAY 43
SCL 47
X0
X400
12.5MHz
22
X1 23
RESET 19
STOP 16
T900
POWER TRANSFORMER
D210-213
RECT
+3.3V
+12V
D202-204,
D209
RECT
RECT
F900
D214-D217
IC203
+15V REG
+15V
IC202
-15V REG
-15V
AC
IN
6
5
8
3
1
3
RY201
+6V
D218
D207
D208
RY200
1
3
D201
+32V
–32V
Q200
RELAY DRIVE
Q202
RELAY DRIVE
Q204,205
CONTROL
+5V
Q206
REG
Q404,405
Q411-413
Q411-413
RESET
IR SIGIN
14
12V TRIG IN
41
12V TRIG OUT
42
VOL A/D L
5
VOL A/D R
6
TACT
SWITCH
S402,403,407
TACT
SWITCH
IC403
SELECTOR
J401
J400
J402
J403
1
+3.3V
L ATTENUATOR R
+3.3V
RV350
RV300
+12V
IC402
IR SIG IN
Q401
SWITCH
Q402,403
SWITCH
12VTRIGGER
IN
OUT
Q406
CONTROL
1
13
12
10
11
Y
X
14
15
IR REMOTE
IN
OUT
Q400,407,410
SWITCH
D400
8
8
TA-MR2ES
TA-MR2ES
3-2. PRINTED WIRING BOARD – POWER SWITCH/INLET SECTION –
•
See page 5 for Circuit Boards Location.
•
:Uses unleaded solder.
S1
CN902
T900
POWER TRANSFORMER
C901
CN903
CN900
FH900
FH905
CN901
1
1
3
3
F900
1
1
2
2
AMP
BOARD
CN202
(Page 10)
A
AMP
BOARD
CN200
(Page 10)
B
AC
IN
IN
POWER
1
2
A
B
C
D
E
F
3
4
5
6
7
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