Schematic Diagram - Main Board (2/2) - Sony CMT-A70 Service Manual

6-9. SCHEMATIC DIAGRAM – MAIN Board (2/2) –
CNF303
8P
END SW
MGND
TRGM+
M+10V
TAPE MECHANISM
DECK BLOCK PACK
F REC
R REC
PLAY SW
CNP304
2P
KEY2
DGND
CNF305
(Page 33)
25P
BLIT
D0
D2
D4
D6
A0
WR
RES
CS
D7
D5
D3
D1
STBY LED
+3.3V(SUB)
(Page 33)
VDD
DGND
DGND
JOG-A
JOG-B
M_VOL-B
M_VOL-A
KEY0
KEY1
RMC
CN306
6P
TRAY OPEN
TRAY CLOSE
GND
6V
CLOSE S/W
(Page 33)
OPEN S/W
CNF307
29P
PGND
CD7V
RF PWM
FE PWM
TE PWM
RW/ROM
FOK
GFS
XRST
SCOR
DATA
CLK
XLAT
XSOE
LDON
SENS
(Page 25)
NRST
XWAKE
RDEN
SDCLK
SDOUT
SDIN
SDXLAT
DGND
AGND
L-CH
R-CH
3.3V_UCOM
3.3V_CD
CMT-A50/A70
• See page 40 for Waveforms. • See page 40 for IC Block Diagrams. • See page 45 for IC Pin Function Description.
(2/2)
R319
Q314,315
47k
R320 TRIGGER PLUNGER
1k
DRIVE
Q314
KTA1271Y-AT
74
Q315 D332
KRC402-RTK 1SS355TE
73
D307 C324
1SS133T-77 4700p
R322
47k
72 75
70
Q317
KRC402-RTK
71
Q317,318
69
R323
MOTOR B+ SWITCH
1k
Q318
KTA1271Y-AT
52
40
86
93
95
* R343
97
0 (AEP,UK,IT,EE,RU)
99
470 (US,CND,AUS)
90 2.2k (KR)
91
47
89
* R342
R343
88
0 (AEP,UK,IT,EE,RU) *
100 1k (US,CND)
2.2k (AUS)
98
R342
4.7k (KR)
*
96
94
R379
4.7k
43
44
26
25
L304
38
1µH
39
16
15
14
L303
1µH
17
5
7
6
4
C353 100p 1
C325 R346
0.1 47k
C352 100p 2
C351 100p 3
C350 100p 47
C349 100p 19
C348 10p 20
C347 10p 21
C346 100p 8
C345 100p 9
C344 100p 18
C343 10p 12
C342 100p 13
C341 100p 52
Q102
2SC3624T1L1718
C340 100p 60
MUTING
C339 100p 59
C338 100p 58
C337 100p 10
C336 100p
FB302
C132 R127 R136 Q202
22 50V 470 470 2SC3624T1L1718
MUTING
C295
R227 R236
220 C232
470 470
10V 22 50V
C234
C335 R228 R128
470
0.1 47k 47k
10V
D325 1N4002B
R350 47k
R349 47k
R353 R351 R446 R448
10k 47k 100 100
R454 100
C370
0.1
R464 R453
100 100
C392 R452
0.1 100
R372
100k
Q330
KRC102S
INVERTER
C326
0.1
C390 C391
R371 0.1 0.1
47k
MD1
MD0
R370 R447
PSTBY
47k 100
CD_SCOR
RELAY
R445 100
P-CON
R345 44 R444 100
47k JOG-B
43 R443 100
JOG-A
R344 47k
VSS
SEL
40 R440 100 SYSTEM CONTROLLER
KEY-2
39 R439 100
MB90474PF-G
KEY-1
-202-BNDE1
38 R438 100
KEY-0
R339 R340
AVSS
4.7k 4.7k
C386
C327
R341 100 AVRH
0.1
4.7k 16V
AVCC
R434 100
AU_A-SDA
R433 100
AU_A-SCL
R432 100
A-MUTE
CD-MUTE
R431
100
R334
47k
R348 47k
R347 47k
R338
47k
R374 47k
R336 47k R335 47k R332 47k
R380
Q323
KRA102S
Q323,324
MUTING
Q326
CONTROL KTA1273Y-AT
R129
10k
SWITCH
Q324 Q320
KRC102S KRC102S-RTK
R229
CD ON/OFF
10k
CONTROL
29 29
(Page 28)
D304 1SS133T-77
C334
C331
0.22F
10
5.5V
50V
R352
RESET SIGNAL
Q325 10
IC304
DTC114YUA GENERATOR
BD4726GTR
-T106 C330
0.1
R478 C328 C329 R354
100 22p 22p 1k
R356
4.7k
X301
R377
32.768KHz
1M
C333
1000
Q333,335
6.3V C381 Q335
0.01 SHIFT CLOCK 2SC4081Q
C332
0.1
C396 C395 C379
10p 10p 47p
Q333
2SC4081Q
VSS
X302
C380
X0 4.19MHz
47p
X1 R357
R483 0 100k
VCC
CD_EEP CS
R486 100 86
BLIT
PROTECT
R488 100 88
R487
LCD-CS
100
R489 100 89
C393
LCD-RES
0.1
R490 100 90
LCD-AO
R491 1k 91 C401 47p
LCD-WR
IC309
ISS2
R493 1k 93 C403 220p
LCD_AD0
R494 1k 94 C404 220p
LCD_AD1
R495 1k 95 C405 220p
LCD_AD2
R496 1k 96 C406 220p
LCD_AD3
R497 1k 97 C407 220p
LCD_AD4
R498 1k 98 C408 220p
LCD_AD5
R499 1k 99 C409 220p
LCD_AD6
R400 1k 100 C410 220p
LCD_AD7
R375
C359 R365 100k
0.022 22k
R361 R362 R363
2.2k 47k 100k
R364
47k
Q322
2SC4081Q
10
CURRENT
MONITOR
D317
1N4002B
R331 47k
D313
1N4002B
R359 R376
47k 47k 100k
Q331 +3.3V REGULATOR
2SB798
Q319
+3.3V
KTA1273Y-AT
REGULATOR IC311
B+ R381 B+ R360
S-816A33AMC
1k 1k
SWITCH
D315
1SS355TE
C355
R391
100
10k
10V
CMT-A50/A70
Ver. 1.2
D311
1N4002B
R355
220
R386 1k
C382
0.01
R387
10k
L301
10µH
CN308
20P
R358
100k
C298 R373
0.1 220k
(Page 31)
R392 4.7k
J302
3P
OPTICAL
DIGITAL
OUT(CD)
CN310
3P
OPTICAL OUT
DGND
+3.3V
(Page 25)
C398 C299
0.1 0.1