Block Diagram -Tape Section - Sony WX-4500X Service Manual

WX-4500X
6-4. BLOCK DIAGRAM — TAPE SECTION —
TAPE EQ/DOLBY/METAL/AMS
IC400
HP901
PLAYBACK HEAD
L 37
FWD
R
R-CH
EQ
39
L
REV
R R-CH
R-CH
4 2
RV400
DOLBY LEVEL
(L-CH)
C-MOTOR
M904
M
DRIVE BATT
(CAPSTAN/REEL)
Q653,654
TAPE +8.5V
+8.5V REG BATT
Q650,651
MECHA ON
6
CD ON
CD
SECTION
+5V REG
(Page 26)
CD8V CD5V
Q450,451
• Signal path
: TAPE
• R-ch is omitted due to same as L-ch.
MAIN SYSTEM CONTROL
FWD/REV
19 112 F/R
MTL/NORMAL
18 113 MTL
NR ON
16 2
DOL ON
1
L OUT
DOLBY
7 TAPE L
NR
TUNER
(Page 27)
SECTION
MUTE/TAPE
17 118
TAPE MUTE
AUTO
AMS OUT
MUSIC
14 117 AMS IN
SENSOR
AMS/PLAY 20 111
AMS ON
S700
BU5V
(FREQUENCY SELECT)
FM 200k
AM 10k
95 DST SEL1
FM 50k
AM 9k
25 POS0
26 POS1
TAPE
MECHANISM
27 POS2
BLOCK
28 POS3
29 REEL1
LM+
LOADING
7 4 30 LM EJ
M905
M
LM– MOTOR DRIVE
(LOADING) 9 3 31 LM LOD
IC650
37 CM ON
REMOTE CONTROL
24 SIRCS
RECEIVER
PH960
32 TP ON
76 KEY ACK
KEY ACK SW
35 AD ON
Q905
72 RC IN1
J900
(REMOTE IN)
49 RC IN0
KEY
46
KEY IN0
EN960
66
RE IN0
64 RE IN1
BU5V
RAM
2 1 84
RESET RAM RST
IC702
RESET
2 1 90 RST
BU5V
IC701
SW960
86 HTMX
(RESET)
RXD
12
5
RESET
TUNER
SECTION
(Page 27)
7 (Page 26)
CD SECTION
IC700(2/2)
UNI SI 20
UNI SO 21
BUS ON 7
22
UNI CLK
BU CHK 77
SYS RST 83
IC901
2
RESET
DP BOOT 16
SA LAT 61
DIM ON
98
AUDIO 10V ON/OFF SW
ILL ON 99
AUDIO 10V ON/OFF SW
W UP 75
D/D CONV
FSW SFT 82 ON/OFF SW
Q800
FREQ OSC
F SW IN
65 ON/OFF SW
Q801
FL ON/OFF
FL ON 62 SW
IC801,Q803
28 28
BUS CONTROL
IC750
8
DATA
6
9
BUS ON/OFF
BUS ON
12
1 SW
CONT
Q750
CLK
11
4
OVER VOLTAGE
BATT
10 3 CHECK
CHECK
Q751
RESET
13 2
DISPLAY SYSTEM CONTROL
IC900
1 81 RES LINK OFF 50
SA CLK 1 SA CLK
4
57 BOOT SA DATA 112 SA AUDIO
(Page 27)
ILL ON
27 SA LAT 52
34 BU IN
ILLUM
XTAL
82 NMI 85
ON/OFF SW
BU5V
Q901
X901
38 BUS ON
18.432MHz
51 FL ON EXTAL 86
97 UNI SO FL LAT 75
98 FL BK 74
UNI SI
UNI CK
101 FL SCK 64
FL SI FL SO
62 60
D903,905
908,911
DIMMER
WAKE-UP
SW
Q907
Q807
D902,904,906
POWER
CONTROL
ILLUM BATT
Q805,806
Q908
BACK-UP
BATT
+5V REG
Q804
POWER CONTROL
IC800
+10V REG
BATT
16 RT OUT1 46
Q808
20 CTL1 OUT2 44
CTL2
21
CD+8V REG
22 BATT
CTL3 CD8V
Q809
OUT3 40
33
DTC4
AMP
OUT4 39 IC803,Q810
Q812-814
28 DTC3
FL ON/OFF
BATT SW
Q810
CN750
(BUS CONTROL IN)
8
6 3
5 2
4 1
7
BATT
TUNER
SECTION
FL700
11 VDD
9 LAT
10 BK
8 CLK
7 SI
12 VH
F2 F2 F1 F1
16 17 1 2
BU5V
AUDIO 10V
T800