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Page 26 of 58 

Report No.: 1009950 

Clause 

Requirement + Test 

Result - Remark 

Verdict 

 

 
TRF No. IEC60065J 

Transmitter JBLSUBTX1 

P 

 

Power consumption in the OFF/Stand-by mode of the 
functional switch (W)………..….:…………....: 

No stand-by mode 

P 

Cond. 

Un (V) 

Hz 

In (mA) 

Pn (W) 

V out 

Pout (W) 

Operating Condition 

1 264 50  24  2.4 

- 

- 

2 18 dc 90 1.62  - 

- 

- 

1. Supplied from AC-adapter (mfr/type, see table 14) 
2. Supplied from dc-power supply 

 

Loudspeaker impedance (Ω) ..................................: 

- 

— 

 

Several loudspeaker systems 

- 

— 

 

Marking of loudspeaker terminals 

— 

— 

 

Temperature Rise dT of Part 

dT (K) 

Limit max dT (K) 

Test Condition No. 

No 1 

No ___ 

No ___ 

 

Top of enclosure, plastic 

13 

- 

- 

60 (50) 

Bottom of enclosure, plastic 

11 

- 

- 

40 (30) 

PCB 17 

- 

- 

85 

(75) 

Winding temperature rise measurements 

Ambient temperature t1 (

o

C) ..............................

Ambient temperature t2 (

o

C) ..............................

- 

- 

— —  — 

— 

Temperature rise dT of winding: 
dT = (R

2 

– R

1

) x (234.5 + t1) – (t2 – t1) 

             R

1

 

R

1

 (Ω) 

R

2

 (Ω) 

dT (K) 

Limit 

maxK) 

Insulation class 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 27 of 58 

Report No.: 1009950 

Clause 

Requirement + Test 

Result - Remark 

Verdict 

 

 
TRF No. IEC60065J 

Mains fuse holder 

<85 

<85 

>150 

 

 

 

 

 

 

 

 

Between mains poles (primary fuse disconnected)  

>10 

Min 2 

Between parts separated by basic or supplementary insulation  

>10 

Min 2 

Between parts separated by double or reinforced insulation  

>10 

Min 4 

Mains poles (primary fuse disconnected)  

2120 pk 

No 

Between parts separated by basic or supplementary insulation 

2120 pk 

No 

Between parts separated by double or reinforced insulation 

4240 pk 

No 

 

Page 28 of 58 

Report No.: 1009950 

Clause 

Requirement + Test 

Result - Remark 

Verdict 

 

 
TRF No. IEC60065J 

 

Voltage (V) 0,9 or 1,1 times rated voltage .............: 220-230 

— 

 

Ambient temperature (

o

C) .......................................: 25 

— 

 

No 

Component 

Fault 

Temp Rise/ 
Component 

Other results 
(include description and test duration) 

1 

-- 

Pout = 100% 

Transformer steel 

washer:63K 

PCB: 54K  

enclosure: 53K 

Rear metal enclosure: 

40K 

Un = 253V, In = 1.1A, Pn = 200W. After 
52min the unit began switching ON/OFF 
due to temp regulation on amplifier. After 
2h mains fuse F1 opened due to short 
circuit in speaker coil. (Tested with 
transformer 

TD-230-0300A+C)

  

No remarks 

2 

C19 

sc 

-- 

Un = 198V. F1 opened immediately.          
No high temperature, no remarks. 

3 

Q11 d-g 

sc 

-- 

Un = 198V. F1 opened immediately. 
Q10, Q10B, Q11 damaged. No high 
temperature, no remarks. 

4 

R6 

d 

-- 

Un = 253V, Pn=111-172W. The unit 
turned to standby mode after 1 min 50 
sec. No high temperature, no remarks. 

5 

Q5B c-b 

sc 

-- 

Un = 253V, Pn= 60W. Uout decreased to 
6.5V. The negative part of the output signal 
disappeared. Test was interrupted after 
5min. No high temperature, no remarks.

 

6a C134 

sc 

-- 

Un = 253V. R241 opened after 2s.              
No high temperatures, no remarks. 

6b C134 

sc 

-- 

Un = 198V, Pn=9W. R241 heated. R241 
lifted vertical from PCB. PCB=150K 
(<210K), (PCB rated V0)  
R241 opened after 16min. No high 
temperatures, no remarks. 

7 C166 

sc 

-- 

Un = 253V, In = 127mA, Pn = 15W 
Test time: 15min No high temperatures, 
no remarks. 

8 C168 

sc 

-- 

Un = 198V 
F1 opened immediately. No remarks. 

9 C170 

sc 

-- 

Un = 198V. R255 and R256 opened 
immediately. No remarks. 

10 Capacitor, 

(600pF) in RC 

snubber  

sc 

-- 

Un = 198/253V. Resistor, (18Ω) in RC 
snubber opened immediately. No remarks.

11 D124 

~to+ 

sc 

-- 

Un = 198V. Normal operation. Test time 
15 min. No high temperatures, no 
remarks. 

12 C503 

on wireless 

board 

sc 

-- 

198V. Resistor R505 (10ohm) opened 
immediately. No remarks. 

 

Page 29 of 58 

Report No.: 1009950 

Clause 

Requirement + Test 

Result - Remark 

Verdict 

 

 
TRF No. IEC60065J 

13 U501 

 

pin 1-8 

on wireless 

board 

sc 

-- 

198V. Resistor R505 (10ohm) opened 
immediately. No remarks 

Transmitter JBLSUBTX1 supplied from external dc-power supply (Iin limited to 20A) 

14 

C07 

sc 

- 

Uin=18V  Iin=0.18A Test time 5min. 
No high temperatures. No remarks 

15 

C04 

sc 

- 

Uin=18V  Iin=0.2A Test time 5min. 
No high temperatures. No remarks 

16 

C03 

sc 

- 

Uin=18V  Iin=1.2A Test time 5min. 
After 3s interruption in Q01, which was 
damaged. 
No high temperatures. No remarks 

17 

Q01 c-e 

sc 

- 

Uin=18V  Iin=0.09A Test time 5min. 
No high temperatures. No remarks 

18 

C02 

sc 

- 

Uin=18V  Iin=15.5A Test time 5min. 
After 7s interruption in D01. 
No high temperatures. No remarks 

Standby PCB 

19 

C10 

sc 

TR1 winding / 67K 

Un=253V, Pn = 5.5W, In = 0.065A    Relay 
switched OFF. No remarks   

20 

D2 

d - 

Un=253V, Pn = 0.3W                         
Protection mode immediately. No remarks

21 

D2 

sc - 

Un=253V, Pn = 45W                         
Normal function. No remarks 

22 

D6 

d - 

Un=253V, Pn = 47W                         
Normal function. No remarks 

23 

IC1           

(5-8) 

sc - 

Un=198V, Pn = 0W,                           
Mains Fuse on Standby PCB opened 
immediately; Optocoupler OP1 intact.  
No Remarks