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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