Sony DVP-K330 Service Manual page 53

AU-214 (AUDIO/VIDEO BUFFER) PRINTED WIRING BOARD
– Ref. No.: AU-214 board; 2,000 series –
1 2 3
1 28
AU-214 BOARD
CN301 B-2 Q301 B-6
CN303 B-3 Q302 A-11
CN402 C-9 Q303 A-11
CN403 B-4 Q321 B-3
Q322 B-3
D301 A-11 Q341 A-1
D302 A-11 Q433 B-11
D303 C-11 Q435 A-9
D304 A-5 Q436 B-9
D305 A-5 Q437 B-6
D306 A-5 Q438 C-10
D307 A-4 Q439 A-7
D308 A-11 Q440 B-7
D431 C-11 Q441 A-10
D434 C-11 Q442 C-10
D435 B-10 Q443 B-10
D436 B-10 Q444 C-11
Q445 C-11
IC301 C-11 Q446 C-11
IC302 A-11 Q447 B-11
IC303 B-5 Q448 B-11
IC321 B-2
IC431 B-7
IC432 B-9
IC505 A-1
IC506 B-10
A
K K
K K
K K
A A
1 7 1
15
Power Block
HS-030SH (EXCEPT Taiwan)
HS-030SU (Taiwan)
(SWITCHING REGULATOR)
TK-51
VR-71
(RF/SERVO)
(MIC/ECHO LEVEL)
FR-153
AU-214
(IR/POWER SWITCH)
(AUDIO)
MC-121
(MIC IN/MIC AMP)
MS-29 (Taiwan)
MS-46 (EXCEPT Taiwan)
MB-82
(LOADING)
(SIGNAL PROCESS/SERVO)
FL-103
(FUNCTION SWITCH)
4-41
There are few cases that the part isn't mounted in this model is printed on this diagram.
• Waveforms
1 IC321 2 3 IC321 7
1.1 Vp-p (H)
2 IC321 4 4 IC321 !º
1.2 Vp-p (H)
5 IC321 !£
860 mVp-p (H) 2.4 Vp-p (H)
6 IC321 !∞
1.8 Vp-p (H) 2.0 Vp-p (H)
AUDIO/VIDEO BUFFER
AU-214
4-42