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Page 29 of 41 

Report No.: ACSCBAV13005 

 
  

 

 

 

 

 

Clause 

Requirement + Test 

Result - Remark 

Verdict

 

TRF No. IEC60065K 

 

Voltage (V) 0,9 or 1,1 times rated voltage ..............:

See below 

— 

 Frequency 

(Hz) ........................................................:

50 

— 

 Ambient 

temperature 

(

o

C) .......................................:

25, if not specify 

— 

 
No. 

Component  Fault  test 

voltage 
(Vac) 

test 
time 

fuse 

fuse current  
measured (A)

Result 

For Subwoofer (SABRE SB35SUB) 

Measured on Power supply board. 

1 BD503 

pin 1 - 2 

S/C 264  1s 

F501  0 

F501 opened, CD (BD503), 
NB, NH. 

2 CE501 S/C 

264 1s  F501 0 

F501 opened, CD (BD503), 
NB, NH. 

3 D544  S/C 

264 10mins F501 0.157 

Unit normal working, NB, NH.

4 U541 

pin V - F 

S/C 264  10mins F501  0.157 

Unit normal working, NB, NH.

5 U541 

pin V - C 

S/C 264  10mins F501  0.027 

Unit shutdown, recoverable, 
NCD, NB, NH. 

6 U541 

pin V - D 

S/C 264  10mins F501  0.026 

Unit shutdown, CD (U541), 
TRSR with two more times, 
NB, NH. 

7 U541 

pin S - D 

S/C 264  1s  F501  0 

F501 opened, CD (BD503), 
NB, NH. 

8 U542 

pin 1 

O/C 264  10mins F501  0.026

↔0.283 Unit shutdown and cycled, 

recoverable, NCD, NB, NH. 

9 U542 

pin 4 

O/C 264  10mins F501  0.026

↔0.283 Unit shutdown and cycled, 

recoverable, NCD, NB, NH. 

10 U542 

pin 1 - 2 

S/C 264  10mins F501  0.111 

Unit normal working, NB, NH.

11 U542 

pin 3 - 4 

S/C 264  10mins F501  0.026

↔0.283 Unit shutdown and cycled, 

recoverable, NCD, NB, NH. 

12 U544 

pin 1 

O/C 264  10mins F501  0.138 

Unit shutdown, recoverable, 
NCD, NB, NH. 

13 U544 

pin 4 

O/C 264  10mins F501  0.138 

Unit shutdown, recoverable, 
NCD, NB, NH. 

14 U544 

pin 1 - 2 

S/C 264  10mins F501  0.117 

Unit shutdown, recoverable, 
NCD, NB, NH. 

15 U544 

pin 3 - 4 

S/C 264  10mins F501  0.138 

Unit shutdown, recoverable, 
NCD, NB, NH. 

16 D543 

S/C 264  10mins F501  0.026

↔0.060 Unit shutdown and cycled, 

recoverable, NCD, NB, NH. 

Page 30 of 41 

Report No.: ACSCBAV13005 

 
  

 

 

 

 

 

Clause 

Requirement + Test 

Result - Remark 

Verdict

 

TRF No. IEC60065K 

No. 

Component  Fault  test 

voltage 
(Vac) 

test 
time 

fuse 

fuse current  
measured (A)

Result 

17 CE543  S/C 264 10mins F501 0.026

↔0.074 Unit shutdown and cycled, 

recoverable, NCD, NB, NH. 

18 R541 

S/C 264  10mins F501  0.026 

Unit shutdown, recoverable, 
NCD, NB, NH. 

Measured on main board 

19 U701 

pin 2-39 

S/C 264  10mins F501  0.047 

Unit shutdown, recoverable, 
NCD, NB, NH. 

20 Speaker S/C 264 2hours 

50mins

F501 

0.050 

Unit shutdown, recoverable, 
NCD, NB, NH. 

21 Max. 

non-

clipped 
output 
power 

- 264 5hours 

51mins

F501 

0.962 

Similar normal operated. 
NCD, NB, NH. 
LIF502 coil: 35.4K 
U541 body: 60.4K 
T541 coil: 56.9K 
PWB near T541: 50.2K 
Heatsink HS1: 72.8K 
Enclosure plastic, outside 
(near power board): 16.9K  

22 C85 

S/C 26

.

4Vdc 10mins -- 

0.034 

Unit shutdown, CD (U722), 
TRSR with two more times, 
NH. 

23 U715 

Pin 29 - 32 

S/C 26

.

4Vdc 10mins -- 

0.637 

Unit power reduced, 
recoverable, NCD, NH. 

24 U715 

Pin 32 - 27 

S/C 26

.

4Vdc 10mins -- 

0.637 

Unit power reduced, 
recoverable, NCD, NH. 

25 U715 

Pin 29 - 27 

S/C 26

.

4Vdc 10mins -- 

0.650 

Unit power reduced, 
recoverable, NCD, NH. 

26 Low 

frequency 
speaker 

S/C 26

.

4Vdc 2hours

47mins

-- 

0.630 

Unit power reduced, 
recoverable, NCD, NH  
PWB near U715: 48.3K 
Front enclosure outside near 
PWB: 24.4K 

27 High 

frequency 
speaker 

S/C 26

.

4Vdc 2hours

58mins

-- 

0.640

↔0.707 Unit power reduced, 

recoverable, NCD, NH  
PWB near U715: 50.0K 
Front enclosure outside near 
PWB: 27.4K 

Page 31 of 41 

Report No.: ACSCBAV13005 

 
  

 

 

 

 

 

Clause 

Requirement + Test 

Result - Remark 

Verdict

 

TRF No. IEC60065K 

No. 

Component  Fault  test 

voltage 
(Vac) 

test 
time 

fuse 

fuse current  
measured (A)

Result 

28 Max. 

non-

clipped 
output 
power 

- 26

.

4Vdc 4hours

13mins

-- 

Max. 3.5 

Unit power increased to max. 
92.4W, recoverable, NCD, 
NH. 
PWB near U715: 83.1K 
Front enclosure outside near 
PWB: 30.1K 

 

Winding temperature rise measurements 

 

 

Ambient temperature t1 (

o

C) .................................. : - 

— 

 

Ambient temperature t2 (

o

C) .................................. : - 

— 

 

Rated supply voltage: 100-240V 

Pollution degree.. : 2 

Material Group.... :  IIIb 

2 N force on internal parts applied: 

Pass 

- 

30 N force on outside of conductive enclosure applied: 

Pass 

- 

 
Location 

Working Voltage

Clearance (mm) 

Creepage (mm)

CTI 

 

V peak

V rms

Min 

Actual 

Min 

Actual

< 175

For Subwoofer (SABRE SB35SUB) 
Circuits conductively connected to the mains (use Tables 8, 9 and 11): see note below. 

Opposite pattern traces before fuse 
F501 on PCB, as basic 

<420 <250  2.0  3.6  2.5  3.6  <175

Pri. fuse F501, pattern traces on 
PCB, as basic 

<420 <250  2.0  3.1  2.5  3.1  <175

Pri. pattern traces to secondary 
pattern traces (near screw trace), as 
reinforced 

<420 <250  4.0  7.3  5.0  7.3  <175

Pri. pattern traces to secondary 
pattern traces (near CY502), as 
reinforced 

<420 <250  4.0  7.2  5.0  7.2  <175

Pri. pattern traces to secondary 
pattern traces (near CY504), as 
reinforced 

<420 <250  4.0  7.3  5.0  7.3  <175

Pri. pattern traces to secondary 
pattern traces (near CY505), as 
reinforced 

<420 <250  4.0  7.4  5.0  7.4  <175

Switching transformer T541, core considered as floating. 

Pri. Coil to Core, 

as basic

475 

max. 

<250 

(223)

 

2.1 3.5 2.5 3.5 

<175

Sec. Coil to Core, 

as supplementary

475 

max. 

<250 

(223)

 

2.1 3.5 2.5 3.5 

<175

Page 32 of 41 

Report No.: ACSCBAV13005 

 
  

 

 

 

 

 

Clause 

Requirement + Test 

Result - Remark 

Verdict

 

TRF No. IEC60065K 

Pri. pin to Sec. pin via core,

as reinforced

475 

max. 

<250 

(223)

 

4.2 7.0 5.0 7.0 

<175

Sec. pin of CY504 to core,

as reinforced

475 

max. 

<250 

(223)

 

4.2 4.5 5.0 >4.5 

<175

Sec. pin of CY505 to core,

as reinforced

475 

max. 

<250 

(223)

 

4.2 5.0 5.0 >5.0 

<175

Notes: 
1. Secondary circuits of Class II apparatus which have connector terminals that could be earthed (e.g. antenna signal input), are 
subjected to the requirements for circuits conductively connected to the mains in Tables 8 and 9. 
2. Floating secondary circuits of Class I apparatus which have connector terminals that could be earthed (e.g. antenna signal input), 
are subjected to the requirements for circuits conductively connected to the mains in Tables 8 and 9 unless the floating secondary 
circuit is separated from the primary circuits by an earthed metal screen (e.g. in the power transformer), or the floating secondary 
circuit is connected to earth via a component such as a capacitor. 
3. For insufficient clearances and creepage distances from secondary to secondary circuits and from secondary circuits to earth, see 
Cl. 4.3.1, 4.3.2 and 11.2. 
4. If the minimum creepage distance in Table 11 is less than the minimum required clearance in Tables 8, 9 or 10 as required, then 
the value for clearance is used as the minimum creepage distance . 
"Min" = minimum required. 
"Actual = Actual dimensions measured.