DOWNLOAD Harman Kardon AVR 255 (serv.man3) Service Manual ↓ Size: 1.98 MB | Pages: 59 in PDF or view online for FREE

Model
AVR 255 (serv.man3)
Pages
59
Size
1.98 MB
Type
PDF
Document
EMC - CB Certificate
Brand
Device
Audio
File
avr-255-sm3.pdf
Date

Harman Kardon AVR 255 (serv.man3) EMC - CB Certificate ▷ View online

 
 
Page 37 of 43 -
 
 
 
 
 
 Report 
No. 
98389 
 
 
11.2 
TABLE: summary of fault condition tests 
         
         
 
Voltage (V) 0,9 or 1,1 times rated voltage  ......... :
253V or 198V  
— 
         
 
Ambient temperature (
o
C)  ................................... :
23 - 26
 o
— 
Monitored point: 
Under fault conditions specified below 
dT (K) 
Limit dT (K)
*), D114 (A to C), S-c;  
Normal operated. Input current stabilised at 2,38A.  
R104 opened. No hazard (Tested time: 10 min). 
N/A N/A 
*), D117 (A to C), S-c;  
Output signal off immediately. Input current stabilised at 0,68A.  
R104 and R105 opened. No hazard (Tested time: 30 min). 
N/A N/A 
*), D104 (A to C), S-c;  
Normal operated. Input current stabilised at 2,34A.  
R106 opened. No hazard (Tested time: 10 min). 
N/A N/A 
*), D105 (A to C), S-c;  
Normal operated. Input current stabilised at 2,33A.  
R107 opened. No hazard (Tested time: 10 min). 
N/A N/A 
*), D122 (A to C), S-c;  
Normal operated. Input current stabilised at 2,34A.  
F110 opened. No hazard (Tested time: 10 min). 
N/A N/A 
*), D123 (A to C), S-c;  
Normal operated. Input current stabilised at 2,34A.  
F111 opened. No hazard (Tested time: 10 min). 
N/A N/A 
*), C129, S-c;  
Normal operated. Input current stabilised at 2,30A.  
F110 and F111 opened. No hazard (Tested time: 30 min). 
N/A N/A 
*), C941, S-c;  
Output signal off immediately. Input current stabilised at 0,64A.  
R106 and R107 opened. No hazard (Tested time: 30 min). 
N/A N/A 
*), C929, S-c;  
Output signal off immediately. Input current stabilised at 0,65A.  
R104 and R105 opened. No hazard (Tested time: 30 min). 
N/A N/A 
*), C930, S-c;  
Output signal off immediately. Input current stabilised at 0,65A.  
R104 and R105 opened. No hazard (Tested time: 30 min). 
N/A N/A 
*), C117, S-c;  
Normal operated. Input current stabilised at 2,32A.  
No component damaged. No hazard (Tested time: 20 min). 
N/A N/A 
*), C122 (AC to +), S-c;  
Unit shut down after 9 min. Input current stabilised at 0,004A. 
R101 opened. No hazard (Tested time: 10 min). 
N/A N/A 
*) Tested voltage 253V               **) Tested voltage 198V 
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection, O-I = Over Loaded 
 
 
Page 38 of 43 -
 
 
 
 
 
 Report 
No. 
98389 
 
 
Monitored point: 
Under fault conditions specified below - continued 
dT (K) 
Limit dT (K)
*), D991 (AC to +), S-c;  
F901 opened immediately. Input current stabilised at 0,004A. 
No hazard (Tested time: 10 min). 
N/A N/A 
*), D992 (AC to +), S-c;  
F901 opened immediately. Input current stabilised at 0,004A. 
No hazard (Tested time: 10 min). 
N/A N/A 
**), C902, S-c;  
Unit shut down immediately. Input current stabilised at 0,003A. 
No component damaged. No hazard (Tested time: 10 min). 
N/A N/A 
*), C915, S-c;  
F901 opened immediately. Input current stabilised at 0,003A. 
D991 damaged. No hazard (Tested time: 10 min). 
N/A N/A 
*), C809, S-c;  
SB-R channel output signal voltage dropped at 3,39A. 
Input current stabilised at 2,17A. R823 damaged.  
No hazard (Tested time: 30 min). 
N/A N/A 
**), C810, S-c;  
SB-R channel output signal off immediately. Input current stabilised at 1,96A.
R824 damaged. No hazard (Tested time: 30 min). 
N/A N/A 
*), Q805 (E to C), S-c;  
Unit shut down immediately. Input current stabilised at 0,004A. 
Q805, Q807, Q857, R811 and R819 damaged.  
No hazard. (Tested time: 10 min). 
N/A N/A 
*), Q805 (B to C), S-c;  
Unit shut down immediately. Input current stabilised at 0,004A. 
No component damaged. No hazard. (Tested time: 10 min). 
N/A N/A 
*), Q807 (B to C), S-c;  
Unit shut down immediately. Input current stabilised at 0,004A. 
No component damaged. No hazard. (Tested time: 10 min). 
N/A N/A 
*), Q807 (E to C), S-c;  
Unit shut down immediately. Input current stabilised at 0,004A. 
Q805, Q807 and R811 damaged. No hazard. (Tested time: 10 min). 
N/A N/A 
*), D901 (A to C), S-c;  
Normal operated. Input current stabilised at 2,38A.  
Sub transformer primary winding temperature stabilised. 
Dielectric strength test O.K. No hazard (Tested time: 1 hr). 
Sub transf. 
64,8 
Sub transf.
150 
*), C906, S-c;  
Unit shut down immediately. Input current stabilised at 0,014A. 
Sub transformer primary winding temperature stabilised. 
Dielectric strength test O.K. No hazard (Tested time: 1 hr). 
Sub transf. 
78,4 
Sub transf.
150 
*)  Tested voltage 253V               **)  Tested voltage 198V
 
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection, O-I = Over Loaded
 
 
 
Page 39 of 43 -
 
 
 
 
 
 Report 
No. 
98389 
 
 
Monitored point: 
Under fault conditions specified below - continued 
dT (K) 
Limit dT (K)
*), D962 (A to C), S-c;  
Normal operated. Input current stabilised at 2,39A.  
Sub transformer primary winding temperature stabilised. 
Dielectric strength test O.K. No hazard (Tested time: 1 hr 30 min). 
Sub transf. 
79,9 
Sub transf.
150 
*), Speaker output (Center- ch.), S-c;  
Unit shut down immediately. Input current stabilised at 0,004A.  
No component damaged. No hazard. (Tested time: 10 min). 
N/A N/A 
*), Ventilation opening (Blocked);  
Unit shut down after 22 min. 
Measured highest temperature for components;  
1) Main transformer primary winding 
2) Main transformer core 
3) Sub transformer primary winding 
4) Sub transformer core 
5) PWB near D992 
Input current stabilised at 0,004A. No component damaged. 
Dielectric strength test O.K. No hazard. (Tested time: 22 min) 
 
 
 
1) 83,0 
2) 64,1 
3) 55,4 
4) 53,3 
5) 90,8 
 
 
 
1) 150 
2) 150 
3) 150 
4) 150 
5) 110 
*), Fan stalled 
(Center of main heat-sink);  
Unit shut down after 15 min. Input current stabilised at 0,004A.  
No component damaged. Dielectric strength test O.K.  
No hazard. (Tested time: 15 min) 
N/A N/A 
*), Fan stalled 
(Left side of main 
heat-sink
);  
Normal operated. 
Measured temperature for components; 
1) Main transformer primary winding 
2) Main transformer core 
3) Sub transformer primary winding 
4) Sub transformer core 
5) PWB near D992 
Input current stabilised at 2,38A. No component damaged. 
Dielectric strength test O.K. No hazard. (Tested time: 4 hr 50 min) 
 
 
1) 99,1 
2) 72,5 
3) 49,7 
4) 47,8 
5) 85,2 
 
 
1) 150 
2) 150 
3) 150 
4) 150 
5) 110 
*), Pmax. Operating (Maximum non-clipped output signal);  
1st.  
Winding of main transformer heated up to 154,9K and thermal fuse opened 
after 31 min. Input current stabilised at 0,004A.  Dielectric strength test O.K. 
No hazard. (Tested time: 25 min)  
 
2nd.  
Winding of main transformer heated up to 154,8K and thermal fuse opened 
after 10 min. Input current stabilised at 0,004A. Dielectric strength test O.K. 
No hazard. (Tested time: 34 min) 
 
3rd.  
Winding of main transformer heated up to 152,8K and thermal fuse opened 
after 10 min. Input current stabilised at 0,004A. Dielectric strength test O.K. 
No hazard. (Tested time: 20 min) 
 
 
Main transf. 
See #) below  
 
 
 
Main transf. 
See #) below 
 
 
 
Main transf. 
See #) below 
 
 
Main transf.
150 
 
 
 
Main transf.
150 
 
 
 
Main transf.
150 
*) Tested voltage 253V               
 
**)  Tested voltage 198V 
#) The temperature rise of the main transformer was measured to > 150K of allowable limit, but 
transformer passed the testes described in sub clause 11.2.5 (tests repeated three times). 
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection, O-I = Over Loaded
 
 
 
Page 40 of 43 -
 
 
 
 
 
 Report 
No. 
98389 
 
 
14 
TABLE: list of critical components and materials 
Component 
Manufacturer/ 
trademark 
Type/model 
Value / rating 
Standard 
Approval/ 
Reference *) 
Main 
transformer 
 
Bobbin Mtl. 
Thermal fuse 
Seoul Electronics 
& Telecom Co Ltd. 
 
Wintech Polymer 
Therm-O-Disc
KLT5W032ZE 
CLT5W032ZE 
 
CN9030 
E4A51167C 
Class B 
 
 
PET, V-0, 155
°C
 
10A/250V, 167
°C
IEC60065 
clause 14.3 
 
UL94 
IEC60691 
1.) 
 
 
UL, E213445 
VDE 
Sub 
transformer 
(T902) 
 
Bobbin Mtl. 
Bobbin Cap. Mtl. 
Seoul Electronics 
 
 
LG Chemical Ltd. 
LG Chemical Ltd.
 
CLT5I009ZE/ 
KLT5I009ZE 
 
GP-2306G 
GP-1006F 
Class E 
  
 
V-0, 140°C, PBT
V-0, 130°C, PBT
IEC60065 
clause 14.3 
 
UL94 
UL94
 
1.) 
 
 
UL, E67171
 
UL, E67171
 
Mains fuse 
(F901) 
alt. 
alt. 
Orisel  
Littelfuse 
SUN Elect. 
Walter Elect. 
50T 
218 
06.3
 
5T 
TSD 
T6.3A L 250V 
IEC60127 
VDE 
VDE 
VDE 
VDE 
Outlet fuse 
(F902) 
alt. 
alt. 
Littelfuse B.V. 
Bel Fuse. 
Save Fusetech. 
Wickmann
-
Werke.
 
0663 
MRT 
SR-5 
TR5 382 
T2.5A L 250V 
IEC60127 
VDE 
VDE 
VDE 
VDE 
Sec. fuse 
(F110, F111) 
Littelfuse B.V. 
Bel Fuse. 
Save Fusetech. 
Wickmann
-
Werke.
 
0663 
MRT 
SR-5 
TR5 382 
T2.5A L 250V 
IEC60127 
VDE 
VDE 
VDE 
VDE 
Relay across 
the cap. (C904) 
alt. 
alt. 
alt. 
Du San 
Netron Tech. 
Sam Wha Cap. 
Murata Mfg. 
Jyh Chung  
NU 
AA 
SC 
KH 
JY 
0.0047uF/250V,
X1. 
IEC60384-14, 
2
nd
 ed. 
FIMKO 
FIMKO 
FIMKO 
FIMKO 
FIMKO 
Mains relay 
(RY94) alt. 
Omron Corp. 
Daiichi Elect. 
G5PA-1 
DLS1U 
3A/100A 250V 
5A/100A 250V 
IEC 61058-1 
IEC 61058-1 
SEMKO 
SEMKO 
Mains switch 
Jackson Elect. 
JS-606 
6A 250V 
IEC60065
 
IEC61058-1
 
FIMKO 
DC B/less Fan 
(two provided)   
Colorful Industrial  CF-12825HS 
12V, max. 0.22A,
31.4CFM
 
IEC60950 TUV 
Socket-outlet 
(OL91) 
Dae Ryung Elect. 
Dongbo Industri. 
A3-02-D006 
A302D006 
2.5A/250V ~ 
2.5A/250V ~ 
IEC60884-1 
IEC60884-1 
NEMKO  
NEMKO 
PCB Various 
Various 
Min. V-1, 130
°C UL 796 
UL 
*) Marks listed under “Marks of conformity granted” indicates that Nemko has verified certifications respectively
1.) Tested as part of the Apparatus according to IEC 60065, 7.Edition 
Page of 59
Display

Click on the first or last page to see other AVR 255 (serv.man3) service manuals if exist.