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SCHEMATIC DIAGRAM - 12
: +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE

POWER CIRCUIT

IC501
OUT 1 2 OUT 1 1 OUT 2 2 OUT 2 1 AC DET +VCC 1 +VCC 2 2 IN GND -VCC 1 POWER HIC -VCC 2 1 -VCCM 10 -IN 2 1 -IN 2 2 -IN 1 1 -IN 1 2 12

RSN315H42-P
18 17 +VD -VD

16

15

14

13

11

OUT GND

IC501

9

8

7

6

5

4

3

Q512-Q513 C501 0.01

B1AAGC000006
DC DETECT SWITCH
1 2

+ + JK951 HIGH CHANNEL SPEAKER

C245 0.047

C445 0.047

SPKR_L_GND SPKR_R_GND

3 4

R250 68K C242 820P C243 15P

R501 10K

R256 10

C244 0.047 C444 0.047 150K 100K 220K 56K

R255 10 R455 10

R456 10

2 3 4

HOUT_GND

JK952 R451 R251 R252 R452

C240 820P C440 820P

C241 15P R449 68K

3.3K

3.3K

1 2 3 4

FAN DC_DET

3.3K

3.3K

C441 15P

C503 1000P

C502 6.3V220

R506 100K

R445

R245

R447

R247

MUTE_H +15V HI_L HI_R A_GND

Q513 Q512
Q501 R504 47K R505 47K 10V VOLTAGE REGULATOR Q502 VOLTAGE SUPPLY SWITCH Q505 CURRENT CONTROL SWITCH 1 VCC+ VCCR503 12K 2 3 4 AC GND R509 330 R508 330 R507 330 5 6 ACIN SUB B SUB+B GND 7 8 9 H950/ W950

TO MAIN CIRCUIT (CN300) ON SCHEMATIC DIAGRAM-6

5 6 7 8 9 10 11

KTC2026 KTA1046

LO_L LO_R 15K 15K 15K 15K

Q514
D513 B0AACK000004 R502 22K

R446

R246

12 T GND
CN500

KTA1267GRTA

R448

R248

Q514

B1AAGC000006
HEADPHONE MUTING SWITCH

C530 0.18

Q501
R511 560 C507 16V10 R510 2.7K R512 2.7K D501 C520 50V2200 C540 50V2200

2 D GND 3 4 uP GND

TO MAIN CIRCUIT (CN301) ON SCHEMATIC DIAGRAM-6

5 6 7 8 9 10 11 12

CD8V

5V VOLTAGE REGUALTOR 15V VOLTAGE REGULATOR Q504 Q506 KTA1046 CURRENT STABILISER KRA110MTA SWITCH CURRENT LIMITING SWITCH (SHORT CIRCUIT PROTECTION) Q507 10V VOLTAGE REGUALTOR R524 2.2

B1AAKD000009

KTC2026

Q505
C506 0.01 R513 3.3K C505 16V100 R516 15

Q502
D501 B0BA9R600002 D502 B0BA01500003 D504 B0AACK000004

R515 27

KTC3199GRTA

R533 400 C_GND

1

P GND

Q508

D502

Q503

C508 16V10

C504 0.01 R514 3.3K

LED 9V MOT10V +9V -9V SW 5V D508 B0BA5R600016 C514 0.01 R531 2.2K R532 150

D503 MTZJ15CTA

Q508
C513 25V10

R525 2.2

C510 25V100

R523 470

D505 1T3T

Q504
D504 C511 0.01

R528 10K

R526 2.2

CN501

R527 2.2

Q503

C509 0.01

R522 3.3K

R521 2.7

R520 2.7

R519 2.7

R518 2.7

R517 2.7

E500

Q506
R530 1.2K

D508

D507 1T3T

D506 1T3T R529 330

Q507
C512 25V33 D509 B0BA9R600002

+

C443 15P R249 68K

+

C442 820P

-

R450 68K

SPKR_R_GND

LOW CHANNEL SPEAKER

SPKR_L_GND

1

TO TRANSFORMER CIRCUIT (CN950)ON SCHEMATIC DIAGRAM-13/14