Sony MZ-R5ST - Schematic Diagram -MD Power Supply, Switch Section

MZ-R5ST
6-15. SCHEMATIC DIAGRAM —MD POWER SUPPLY, SWITCH SECTION –
MAIN BOARD
(1/3)
CN803
(Page 54)
9
1
2
3
4
5
6
7
8
CN902 FPC
S908MODE
S907VOL-
S906VOL+
S905STOP
S904REW
S903PLAY
S902FF
S901DISPLAYDISPLAY
PLAY
REW
STOP
VOL+
VOL-
MODE
FF
GND
MODE
DISPLAY
SWITCH
Q901
DTC144EUA
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
CN805
20P/TO
RV801
4.7k
D801
RB400D
Q804
2SB1302-T
Q803
2SD1623T
Q805
2SC4081
5 6 7
4 3 2
81
IC808
Si6925DQ
5 6 7
4 3 2
81
IC806
MB3800
L512
68 u H
L802
33u H
L804
10u H
L805 10u H
D810
1SS355
C809
10
6.3V
C842
10
6.3V
C843
10
6.3V
C840
220
10V
R901 1.5k
R879 0
R812
2.2k
R88022k
R810
3.3k
R811
1k
R875
22
R801
2.2
R814
33k
0.50%
R815
4.7k
0.50%
R808
470
R809 3.3k
TP836
GND
TP835
LI-
TP834 LI+
TP8507
TP8514
TP8515
TP8516
TP8517
TP8521
TP890
S-GND1
TP802
TP801
TP806
LI+
TP807
LI-
TP8520
TP8519
TP8518
TP8513
TP8509
TP8511
TP8501
TP8503
TP8505
C801
4.7
F
C837
0.1
F
C860
0.022 B
C807
1500p
B
C832
0.01 B
C810
4.7
F
C841
1B
C805
100p CH
C802
0.1B
C803 0.01
B
C804 1000p
B
L512-2
L512-1
KEY1-LINE
KEY1
S802
END.S
S803
T.MARK
S801
PAUSE
R844
6.8k
0.50%
R845
10k
0.50%
TP838
TP839
TP837
TRACK MARK
END.SEARCH
LIP+
LIP+
AM3_MNT
LIP_ON
AM3_ON
ND2 NS2 NS2 NG2NG1
NS1 NS1 ND1
UEREG
UEREG
UGND
UGND
2.8V
2.8V
AGND
AGND
2.8VA
2.8VA
XPCONT
DD
2.8V
SWITCH
SWITCH
POWER
IC806
REGULATOR
CONTROL
IC808
+B SWITSH
(CHASSIS)
RECHARGEABLE
BATTERY
(LITIUM ION)
LIP-8 3.7V
RECHARGEABLE
BATTERY
(NI-MH)
BP-DM20
OR
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS 3V
POWER BOARD
SW BOARD
SW UNIT
G
MAIN BOARD (2/3)
CN801
(Page 54)
F
16
0
0
0.5
0.3
4.5
8.7
4.5 4.5 4.5
4.5 0
0
2.8
0 0
0.2
0.5
2.1
3.8
2.8
4.5
4.5 0.3
0
12
A
B
C
D
E
F
G
H
34567891011
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
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
specified.
• C : panel designation.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 4.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : REC
( ) : PB
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Refer to page 75 for IC Block Diagrams.
— 73 —
— 74 —