Schematic Diagram -Md Power Supply, Switch Section - Sony MZ-R5ST Service Manual

6-15. SCHEMATIC DIAGRAM —MD POWER SUPPLY, SWITCH SECTION –
1 2
A
B
C
CN805
20P/TO
TP8501
1
XPCONT
TP8503
2
2.8VA
3
2.8VA
TP8505
4
AGND
5
AGND
6
2.8V
D
7
2.8V
F
TP8509
8
UGND
9
MAIN BOARD (2/3)
UGND
TP8511
CN801 10
UEREG
(Page 54)
11
UEREG
TP8513
12
LIP+
13
LIP+
14
L512-1
15
AM3_MNT
16
AM3_ON
17
E LIP_ON
18
KEY1
19
KEY1-LINE
20
L512-2
F
G DISPLAY
FF
G
PLAY
MAIN BOARD REW
(1/3)
STOP
CN803
VOL+
(Page 54)
VOL-
MODE
GND
H
16
• Refer to page 75 for IC Block Diagrams.
3 4
POWER BOARD
L805 10u H Q804
C805
2SB1302-T
L804 10u H 100p CH
3.8
2.8
C841
R875
1 B
R814 4.5
22
33k
0.50%
C832
0.01 B
R811
C843 C842
R812
10 10
2.2k
6.3V 6.3V
C810
C809
4.7
RV801
10
F
4.7k
6.3V
DD
2.8V
R815
2.1
4.7k
0.50%
Q805
2SC4081
SWITCH
TP8507
TP8514
TP8515
L512
68 u H
TP8516
TP8517
TP8521
R879 0
TP8518
TP8519
TP8520
SW UNIT
CN902 FPC
1 S901DISPLAY DISPLAY
2
S902FF
3
S903PLAY
4
S904REW
5
S905STOP
6 S906VOL+
7 S907VOL-
8
S908MODE MODE
9
— 73 —
5 6 7
POWER
L802
R801 33u H
2.2
IC806
REGULATOR
R810
CONTROL
1k 3.3k
C801
Q803
4.7
4.5
2SD1623T
C807 F
1500p SWITCH
C860
B
0.022 B
0
0.2 0.3
0
0.5
IC806
MB3800
0.5 0
4.5 0.3
R808
470
C802
0.1B
TP837
S801
PAUSE
R844
S802
6.8k
END.S
0.50%
R845
10k S803
0.50% T.MARK
TP838
TP839
8 9
4.5 4.5 4.5
8.7
IC808
+B SWITSH
C840
220
10V
4.5 0 0 0
D801
RB400D
DTC144EUA
SWITCH
2.8
END.SEARCH
TRACK MARK
SW BOARD
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
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
(
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
— 74 —
MZ-R5ST
10 11
TP834 LI+
RECHARGEABLE
TP806
LI+
BATTERY
(LITIUM ION)
LIP-8 3.7V
TP807
LI-
TP835
LI-
TP802
RECHARGEABLE
BATTERY
(NI-MH)
BP-DM20
OR
TP801
DRY BATTERY
Q901
C837
SIZE "AA"
0.1
(IEC DESIGNATION R6)
0
F
2PCS 3V
TP836
GND
TP890
S-GND1
(CHASSIS)
1
/ W or less unless otherwise
4
) : PB