Sony XR-C7350X, Руководство по обслуживанию

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XR-C7350X
13 13
7-1. BLOCK DIAGRAMS – TUNER/TAPE/MAIN SECTION –
SECTION 7
DIAGRAMS
09
TAPEEQUALIZER METAL, AMS, DOLBY
IC301
37
39
R-CH
PBF
IN2
FWD
L-CH
HP901
(PLAYBACK)
FWD
R-CH
REV
L-CH
REV
R-CH
PBR
IN2
R-CH
R-CH R-CH
R-CH
R-CH
R-CH R-CH
RV101
DOLBY
R-CH
EQ AMP 2
31
40
4
MUTE
DOLBY
NR AMP
PB
OUT2
TAPE
IN2
AMS
DET
+
NROUT
MTLON
DOLON
19
DRSW
18
TAPESW
17 16
54 56
20
INSW
TAPE ATT
DOLBY
AMSON
AMSIN
MSSW
7
LINE
OUT2
14
MS
OUT
SE1L
MPX
AM DET
SE2L
SDA SCL EXT-AT
13
1
11
12
4
VOLUME
CONTROL
CIRCUIT
LOUDNESS
CONTROL
CIRCUIT
DIGITAL CONTROL
CIRCUIT
IIC BUS
LOUDNESS
CONTROL
CIRCUIT
INPUT
SELECTOR
R-CH
AM IF
INPUT SELECT,
ELECTRICAL VOLUME
STEREO DECODER
IC331
J331 (1/2)
BUS
AUDIO IN
SOFT
MUTE
TONE
CONTROL
CIRCUIT
FADER
FADER 29
18 20 21
OUT LR
30
OUT LF
L
R
DATA
CLOCK
MASTER MICRO COMPUTER
IC501 (2/3)
46
VOL ATT
47
I2C CKO
45
I2C SIO
BEEP
J331 (2/2)
AUDIO OUT
(REAR)
L
R
AUDIO OUT
(FRONT)
L
R
15
TEST
49 AMP ATT
40 TELATT
50
ATT
MUTE DRIVE
Q621
MUTING
CONTROL SWITCH
Q622
AMP ON
BATT B+
D622
D621
FRONT L (+)
1
AUX
12
14
5
3
FL+
FL–
21
23
FR+
FR–
FL-IN
FR-IN
11
9
7
RL+
RL–
RL-IN
15
22
17
19
RR+
RR–
RR-IN
4
CN781 (1/2)
(POWER CONNECTOR)
POWER AMP
IC751
FRONT L (–)
9
FRONT R (+)
4
FRONT R (–)
12
REAR L (+)
2
REAR L (–)
10
REAR R (+)
3
REAR R (–)
11
13
MUTING
Q171
MUTING
Q271
MUTING
Q181
STNBY MUTE
MUTING
Q281
R-CH
R-CH
CAPSTAN/REEL
MOTOR DRIVE
Q354
CMON
BATT B+
M
M901
CAPSTAN/REEL
MOTOR
TAPE REGULATOR
DRIVE
Q352
LMEJ TAPON LMLOD
VCC
+B (8.5V) BATT B+
IN2
IN1
OUT2
OUT1
LOADING MOTOR DRIVE
IC351
M
7
9
MOTOR
DRIVE
4
3
1
TAPE REGULATOR
Q351
LOADING/TAPE
OPERATION
MOTOR
TESTIN
39
TAPE OPERATION
SWITCH
BUFFER
TAKE-UP
REEL
SENSOR
SUPPLY
REEL
SENSOR
REEL SENSOR BOARD
REEL
85 – 88
POS0 – POS3
TAPE
DETECT
EJECT/FF/REW/
REV/FWD MODE DETECT
TEL
• SIGNAL PATH
: AM (MW/SW)
: FM
: TAPE PLAYBACK
: BUS AUDIO IN
53
91 90 89 92
52 57 55
48
84
MECHANISM BLOCK
MOTOR DRIVE
SWITCH
Q353
16
35
1
4
2 FM-ANT
AM-ANT
14
S-METER
17
SDA-FEP SCL
7
3 77
SW SHIFT
18
SCL-FEP
TU ATT
SW SHIFT VSM
2
E2P SIO
74 75
E2P CKO
10
8
13
MPX
AM DET
12
MASTER MICRO COMPUTER
IC501 (1/3)
FM/AM TUNER
TU1
MUTING
Q11
MUTING CONTROL
SWITCH
Q31
MUTING
Q21
FM AGC SDA
FM AGC
J1
(FM/AM ANTENNA)
11
BU+B TU5V TU8V
EEP VDD
10
VDD
5
VCC
19 AM IF
51
D31
RV102
DOLBY
29 27
7
2
12
13
IC811
BOOST AMP
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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