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14

MC_OUT
D301 BAS16 D302 BAS16 D303 BAS16 D304 BAS16 R330 47k

CCS_ON GND_D
R337

7

HA7Z I/P and Volume Control c Cyrus Electronics Ltd 13-Aug-2001

S:\STUART\SERV1386.SCH

PL101 CON302 TO PHONO GND POST

PLUGIN_PHONO
LINEOP_R +CCS_L

11 1

10 9 8 15 7 16 6 5 4 14 -15V +15V GND_REG VDD

T=0.1s, uproT=1mS R353
1M

IC301 74HC4094

16

LINEIP_R

12

VDD

VDD
IC302 ULN2004A

R324 100R

15
R363 1k

VDD

IN_L

PH_L -CCS_L +15V

EN STR CLK

Q0 Q1 Q2 Q3 Q4 Q5

4 5 6 7

1 2 3 4

IN_1 OUT_1 IN_2 OUT_2 IN_3 OUT_3 IN_4 OUT_4 IN_5 OUT_5 IN_6 OUT_6 IN_7 OUT_7 GND VDD

16 15 14 13 12 11 10 9

RL1 RL2 RL3 RL4 RL5 RL6 RL7 VDD GND_D GND_D VDD
C347 100nF

SEL_CE
RL301

1 2 3

VDD
C348 100nF

2
SK303A

GND_A

GND_PSU -15V

RL1

DATA CLK

DATA

14 5 13 6 12 7 11 8

R325

2R2

GND_IP 3
IN_R

+CCS_R PH_R -CCS_R

R326 SK301A CD_R

2R2

13

LINEIP_L

LINEOP_L

RL302

C351 100nF

C335 1nF

Q

GND 8

9

Q

Q6 Q7

RL2 GND_D GND_D +5V GND_D IN 2 VOL_L
R367 390R D306 BAS16 R355 100k

GND_D

CD_L SK301B TU_R

VOL_R
R366 RL303 390R

D305 BAS16

D307 BAS16

+5V IN 1

RL3

R354 100k

TU_L SK302A VI_R RL304

-5V

D308 BAS16

-5V3 2

IC304A OPA2604

1 -15V

C339 100uF 6V3 SMD

R347 560R

GND_IP
IC303

GND_IP
LM1972

PRE_L LIS_L

IN 2 20 19 18 17 16 15 14 13 12 11
R336 2k

R343 10k

VI_L SK302B AU_R

RL4

GND_IP

1 2 3 4 5 6

GND 1 OUT 1 GND AC IN 1 GND AC VSS 2 CLOCK SHIFT

IN 2 GND 2 VSS 1 OUT 2 VDD 2 GND AC Q DATA

GND_IP -5V
R339 11k C349 10pF

R351 3k3

R345 100k

C341 100pF

IN 1
AU_L SK303B SP_R RL305

GND AC GND AC

GND_IP GND_IP

+5V

GND_IP +15V
C345 47uF 63V IC304B OPA2604

RL5

-5V

7 8 9 10

-15V
C346 47uF 63V

GND DIG VDD 1

SP_L SK304A TPIN_R RL306 TPIN_L SK304B TPOP_R

HA7Z I/P and Volume Control

GND_IP

GND_IP

RL6

+5V
C343 47uF 63V

-5V
C344 47uF 63V

5 6
R344

+15V 7

C340 100uF

R348 560R

PRE_R LIS_R

10k R352

GND_IP
TPOP_L SK305A RL307 R360 10k

GND_D
C350 10pF 3k3

6V3 SMD R346 100k

RL7 VOL_R

R361 10k R362 10k C336 1nF

R364

100R

DATA VOL_CE CLK
R340 11k

C342 100pF

R322 100R

R323 100R

PRE_R
C331 100pF C332 100pF C314 100pF C313 100pF C312 100pF C311 100pF C310 100pF C309 100pF C308 100pF C307 100pF C306 100pF C305 100pF C304 100pF C303 100pF C302 100pF C301 100pF R321 100k R320 100k R319 100k R318 100k R317 100k R316 100k R315 100k R314 100k R313 100k R312 100k R311 100k R310 100k R349 100k R350 100k

C329 100uF 6V3 C330 100uF 6V3

GND_IP GND_IP MUTE5V

PRE_L
SK305B

VOL_L
CON301 CONLIF15

VDD IC305A
74HC14

GND_IP GND_D CCS_ON PRE_L
R365 100k R332 100k

R328 1k R329 1k C333 1nF R327 1k C334 1nF C352 1nF

MC_IN 10
10k

IC305E

GND_IP 11 12 VDD

IC305F

2

VIN 13
R357 100k

1 MC_IN GND_D

GND_D 3 SEL_CE VOL_CE DATA CLK

T301 BC856B

74HC14 IC305D

74HC14

FUSE MAINS

PRE_R
T303 BC818-25

4 MC_OUT
74HC14 IC305B T302 BC818-25

R356 100k

R333 2k

R334 2k R335 100k

GND_IP GND_IP

VDD

VDD

VDD

AMPIN PSXO GND_D

R331 1k

8

9
R359 5 74HC14 100k

IC305C

GND_D 6

OVER_C

GND_IP

GND_IP

GND_D

R358 100k

74HC14

PSX_MOD

-5V