Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment CYRUS Cyrus 3 cyrus 3 Cyrus-3control amp
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download Cyrus-3control amp documenatation <<
Text preview - extract from the document
HA7Z Micro controller diagram.
S:\STUART\SERV1586.SCH
CON501
*VDD *VDD CONLIF15
VR501 7805 *VDD *VIN
R563 1k
*VIN I/P O/P *CCS_ON R549 1k
R562 R561 *MC_IN
C502
R550 1k
G
C503
C509
C511
C510
C512
C513
10k 10k *FUSE R556 1k
C501 R551 1k *MC_OUT
100nF *MAINS R557 1k
*VDD
100nF
100nF
100nF
100nF
100nF
100nF
100nF
RE501 R552 1k *SEL_CE
1 *OVER_C R558 1k
ROT_A *VOL_CE
20
IC503 R553 1k
74HC373 2 *AMPIN R559 1k
R554 1k *DATA
2 3 3 *PSXO R560 1k
VCC
Q0 D0 ROT_B R555 1k *CLK
5 4 ROTARY_ENC
*PSX_MOD
Q1 D1
C521
C520
C519
C515
C514
C516
C526
C504
C518
C517
C522
C523
C524
C525
*VDD *VDD 6 Q2 D2 7
IC505
16
74HC4094 9 Q3 D3 8
1nF
*VDD
1nF
1nF
1nF
1nF
1nF
1nF
100nF
1nF
1nF
1nF
1nF
1nF
1nF
12 Q4 D4 13 IR501
D501 R524 330R 4
VDD
Vol Q0 EN 15 /RESET VDD 1 IC504C
15 Q5 D5 14 9
Vol D502 R525 330R 5 1 R564 1k 2 8
Q1 STR DIS_CE 16 17 OUT IR 10
D503 R526 330R 6 2 Q6 D6 3
Vol Q2 DATA *DATA GND
19 Q7 D7 18 74HC00 *VDD
Vol D504 R527 330R 7 3
Q3 CLK *CLK REMOTE_EYE
Vol D505 R528 330R 14 R548
Q4 R507 R506
OE 1 4k7 4k7 10R
Vol D506 R529 330R 13 SW501
Q5 11 R518
GND
D507 R530 330R 12 9 LE S/BY
Vol Q6 Q 43k
GND
D508 R531 330R 11 X501 8.00MHz C508
Vol Q7 Q 100n
Use guard tracks. *MAINS
R508 10M
10
*PSXO SW502
R523
*PSX_MOD
8
20k MUTE
C506 C505
52
51
50
49
48
47
7
6
5
4
3
2
1
22pF 22pF
*VDD *VDD
SW503
16
IC506 R521
VRH
E
EXTAL
MODA
PE7
PE3
PE6
PE2
VRL
STRA/AS
VSS
R/W
MODB
28
74HC4094 IC502 BAL
27C256 8 46 10k
D509 R532 330R 4 XTAL PE5 *FUSE
VDD
Vol Q0 EN 15
VCC
10 A0 D0 11 9 PC0 PE1 45
Vol D510 R533 330R 5 1 SW504
Q1 STR 9 12 10 44 R517
D511 R534 330R 6 2 A1 D1 PC1 PE4 *OVER_C PH
Vol Q2 DATA 43k
8 A2 D2 13 11 PC2 PE0 43
Vol D512 R535 330R 7 3
Q3 CLK 7 15 12 42
D513 R536 330R 14 A3 D3 PC3 PB0 SW505
Vol Q4 R522
6 A4 D4 16 13 PC4 PB1 41
Vol D514 R537 330R 13 IC501 CD
Q5 5 17 14 40 20k
D515 R538 330R 12 9 A5 D5 PC5 PB2
Mute MC68HC11A8
HA7Z Micro controller diagram.
Q6 Q 4 18 15 39
GND
D516 R539 330R 11 A6 D6 PC6 68HC11
PB3 SW506
PH Q7 Q 3 19 16 38 R520
A7 D7 PC7 MICRO PROCESSOR
PB4 TU
25 17 37 10k
A8 /RESET RESET PB5
8
24 A9 *VDD R504 4k7 18 XIRQ PB6 36
SW507
*VDD 21 19 35 R519
A10 *VDD *VDD *VDD IRQ PB7 VI
16
IC507 23 R505 4k7 20 34 91k
74HC4094 A11 PD0 PA0
2
VDD
A12 R503 R502 R501
PD1
PD2
PD3
PD4
PD5
PA7
PA6
PA5
PA4
PA3
PA2
PA1
D517 R540 330R 4
VDD
CD Q0 EN 15 10k 10k 10k SW508
26 R516
D518 R541 330R 5 1 A13
c Cyrus Electronics Ltd
TU Q1 STR 43k AU
27 A14 IR
R542 330R 6
21
22
23
24
25
26
27
28
29
30
31
32
33
VI D519 2 C507
Q2 DATA *CCS_ON ROT_A
D520 R543 330R 7 3 *VDD 1 VPP 100n
PROT_OUT *VDD ROT_B SW509
AU Q3 CLK IC504D *AMPIN *CLK R515
12 *VDD *DATA
SP D521 R544 330R 14 11 20 R514 T502 T501 SP
Q4 13 CE 1k8 BC846B BC846B DIS_CE 20k
14
D522 R545 330R 13 22 IC504B
4 *VOL_CE
GND
Tape Q5 OE *SEL_CE
◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo