Block Diagram - Power Supply Section - Sony D-E880 Service Manual

5-3. BLOCK DIAGRAM – POWER SUPPLY Section –
PD
(Page 9) A
LD
(Page 9) B
VG
C
(Page 9)
SYNC
(Page 10) D
SDTO
(Page 10) F
SCK
(Page 10) G
RSTB
(Page 11) H
VCC2_ON 8
SLPOUT 13
XPOWLT 46
WAKE UP
SWITCH
Q409, 413,
Q416
RIPPLE
VCC 2V FILTER
Q406
D416
LASER VOLTAGE
LIMITER
Q412
SYSTEM CONTROLLER
IC801 (3/3)
VCPU 2V
VCC_SWITCHING 6
XAPC_OFF
48
AGCCON 4
CHGMNT1 15
DCINMNT
20
EX_BATT
40
BATMNT 17
B+
D-RAM
SWITCH
(IC602)
2V Q602
RST
E
(Page 10) DVDD
Q603
05
– 13 –
POWER CONTROL
IC401 (1/2)
PA PC
3
SYNC
11
DATA
14
CHARGING BATTERY
CLOCK
VOLTAGE DETECTOR
13
CHG SW CIRCUIT
CHGMNT
VLG2O RF4
LINEAR
67
INM4
CONSTANT CURRENT,
INM2 RS CONSTANT VOLTAGE
8
CHARGING BATTERY
CHARGE CIRCUIT
RF2 V IN
SAWTOOTH
7
WAVEFORM
RF21 OCCURRENCE
CIRCUIT
RF2
LATCHC INM2
15
SWITCHING
APCREF
POWER
WAKEUP PAPC
12 CIRCUIT 2
RSTB MODE2
48
DTC2D
VLG2O
DTC1D
VCP
47
SWITCHING
INP1
UP SIDE
POWER
VC PRE-DRIVER VLG1O
CIRCUIT 1
VCP
RF21 MODE1 LENEAR
2
REGULATOR
INP1
55
VLG1O
59 WAKEUP
MODE2 LATCHC
SYSTEM
50
DATA CONTROL,
VC
46 INPUT/OUTPUT VG
CLOCK VG
POWER L4
CIRCUIT
LOW
MODE1
49 VOLTAGE
APCREF CLOCK
DETECTOR
4
CHGMNT
56
D404
B+
VCC 2V
SWITCH
Q401, 405
DTC2D
51
D411
DTC1D
52
BATM1
LOW BATTERY
SWITCHING
DETECTOR
BATM2 Q414
IC404
57
3V,
SPINDLE MOTOR
DRIVER (IC402) 3V,
HEADPHONE
AMP (IC351) 3V
VG
9
D402
L4
6
CHARGE
D406
BATM1
58
CHARGE ON
RF4
44 SWITCH
Q403, 404
INM4
43
DC IN
D401
DC IN
45
CHARGE
RS
42 CONTROL
Q402, 407
CHGSW
41
V IN
63
EXTERNAL BATTERY
SWITCH
Q408
D410
– 14 –
• Waveforms
1 IC401 qd CLOCK, IC402 9 CLK
IC601 wg CLOK, IC801 q; SCK 6 IC601 o; BCK
2 V/DIV, 2 µs/DIV
2.1 Vp-p
VCC 3V
1.9 µ s
2 IC601 e; R4M 7 IC601 of XTAO
500 mV/DIV, 200 ns/DIV
2.1 Vp-p
RECHARGEABLE
BATTERY
NC-WMAA
2PCS. 2.4V
OR
DRY BATTERY
236 ns
SIZE "AA"
(IEC DESIGNATION LR6)
3 IC601 rd MDP (CD PLAY) 8 IC801 ul XIN, IC802 q; MCLK
2PCS. 3V
1 V/DIV, 2 µs/DIV
2.1 Vp-p
J401 (1/2)
EXT BATT
J401 (2/2)
DC IN 4.5V
– +
3.8 µ s
4 IC601 ua RFAC (CD PLAY)
100 mV/DIV, 500 ns/DIV
350-650 mVp-p
5 IC601 ih LRCK
1 V/DIV, 20 µs/DIV
2.1 Vp-p
22.6 µ s
D-E880/EJ815
1 V/DIV, 200 ns/DIV
2.1 Vp-p
472 ns
500 mV/DIV, 50 ns/DIV
2.1 Vp-p
59 ns
500 mV/DIV, 200 ns/DIV
2.1 Vp-p
236 ns
– 15 –