Schematic Diagram – Base Main Board (1/3) - Sony SPP-S2730 Service Manual

SPP-S2730
6-6. SCHEMATIC DIAGRAM – BASE MAIN Board (1/3) – •
ANT102
(SUB ANTENNA)
LND1
LND5
(CHASSIS)
A1
A2
A3
A4
(Page 31)
See page 27 for Waveform.
R301 0
SDA R302 0 TP301
CS R303 0 TP336
SCL R304 0 TP302
TP304 R305 1k
R306 1k
LCD R308 470
C301 0.1
R309 100k TP303
PUSH
ROW1
ROW2
R312
R311
10k
100k ROW3
ROW4
R310
0
S301
(HOOK ON/OFF)
OFF
ON
TP306 (GND)
TP307
RF271
(RF UNIT)
TP271
ANTB TP272
ANTA TP273
C282
3p ANT101
(MAIN ANTENNA)
MAIN
ANTENNA
C283
0.1
TP274
L272
0
TP277
TP275
C277 C278
3p 0.1
30
• See page 27 for Note on Schematic Diagram.
TP203
R333 R335 R334
10k 4.7k 4.7M
R346 22k
R336
1k
C318 0.1
C315
1
X301
R347
6MHz
100k
R332 0
R331 0
R330 0
R344 680
R329 0
R328 0
R327 680
SYSTEM CONTROLLER
IC301
SB875064W-5W61
R325 10k
R324 10k
C314 0.1
DB13
R323 0 DB14
R322 0
C319
1000p
C304 C306
100 10V 0.001
TP280 R276 1k DC2
TP281 R277 0 DC3
TP279
R281
0
TP282 R278 0 DC1
TP283 R279 0 DC5
TP284 R280 0 DC6
TP285 DC7
C280 0.01
C279
0.01
TP286 R282 0 SCLK
TP287 R283 0 FSYNC
R284 0 DL0
R285 470 DL1
TP288 R286 0 DC4
TP278
TP338
Q303
2SC4081T10
6Q
C320
RESET
0.22
R307
470k
(Page 32)
30
TP310
TP311
CHG R357 0 TP312
CS R358 0 TP313
R345
SDA R359 0 TP314
680
ANS2
SCL R360 0 TP315
DC5
TP316
DC6
R361 0 TP317
DC7
RESET R362 0 TP318
VMWI1
LCD TP319
ANTA
ANS2 TP320
ANTB
VMWI1 TP321
JOGB R364 0 TP322
JOGA R365 0 TP323
TP309 PUSH R366 0 TP324
R321
100k
IC303
CAT24WC32JI-1.8
-TE13
EEPROM
D301
R314
1SS133T
4.7k
-77
R313
10k
COL5 TP325
ROW6 TP326
ROW1 TP327
RESET SIGNAL ROW2 TP328
GENERATOR
ROW3 TP329
ROW4 TP330
ROW5 TP331
COL4 TP332
COL3 TP333
O
I COL2 TP334
S302
G
COL1 TP335
RESET
IC302
S-80827ANU
P-EDQ-T2
C302
C303
1
1
CN301
15P
(Page 35)
CN302
11P
(Page 35)