Acer B193R Layout, CN603, add C617 C618, CN604 add R616, BTL modeLow, SE modeHigh, add FB602

+5V_Audio	FB602	+5V
add FB602	1	2

R608
0R05 1/8W
CN602	1
	2	Lin	R606	10K 1/10W 5%	C606	0.47uF/16V
	3
	5
	4	Rin	R607	10K 1/10W 5%	C607	0.47uF/16V
PHONEJACK

Layout	CN603	C610 100pF	R609 8.2KOHM+-5% 1/10W C611 100pF	R610 8.2KOHM+-5% 1/10W
CN604 ㎝

+5V_Audio

BEAD

FB601

C603

C604

1

2

+

C602

0.

0.

BEAD

CN601 change to

100uF/25V

47uF/16V

47uF/16V

U601

V type

IC with Heat-sink(90G6258-2)

add C617 C618

3

9

6

EUA6021AIIT1

PVDD

PVDD

VDD

CN601

8

12

LOUT+

4

LIN+

LOUT+

C617

0.47uF/16V

7

10

LOUT-

3

LIN-

LOUT-

ROUT+

2

ROUT-

1

4

RIN+

ROUT+

20

C618

0.47uF/16V

5

2

CONN

RIN-

ROUT-

+5V_Audio

BYPASS

16

1uF/25V

BTL mode:Low

14

15

C608

+5V_Audio

SHUTDOWN# FADE#

1/4W

SE/BTL#

19

SE mode:High

Mute mode:Low

EAR-LOUT

EAR-ROUT SEL-BTL

1

2

3

4

change R609 R610 R611 R612

CN604 add R616

	MUTE
	change R601 R613
NC/CONN

	R612	10K OHM	18	VOLUME			NC	13	0.1uF	C609
R611 NC				PGND	PGND	AGND				+5V_Audio
							56G 616 40				10K 1/10W 5%
		Q601			11	17
	PMBS3904	0.1uF C612		1					10K 1/10W 5%	R602
R616	1K 1/10W 5%								R605
							+5V_Audio				SEL-BTL

CN603	1
	7
	6
	2
	3
	4
PHONEJACK	5

SEL-BTL

0.1uF C601

330 OHM +-5% 1/10W

R613

EAR-LOUT

EAR-ROUT

R601

330 OHM +-5% 1/10W

C615	C616	R614
NC	NC
		1K 1/10W 5%

C613	100uF/25V		R603
+	LOUT+	R604
			1K 1/10W 5%
		100K OHM 1/10W
C614	100uF/25V
+	ROUT+		R617 1K 1/10W 5%
			Q602	VOL
		C605 PMBS3904
R615		1uF/25V		change R603 R604
1K 1/10W 5%

add Q602 R617

47