1.2. Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C501, C502, C503, C910, C911, C915 and C923 through a 10
Ω
, 1W
resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
·
Current consumption at AC 230V, 50 Hz in NO SIGNAL mode (volume min) should be ~150 mA.
1.3. Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
·
No sound is heard when the power is turned on.
·
Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
"shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
1.4. Safety Part Information
Safety Parts List:
There are special components used in this equipment which are important for safety.These parts are marked by
in the
Schematic Diagrams & Replacement Parts List. It is essential that these critical partsshould be replaced with manufacturer’s
specified parts to prevent shock, fire or other hazards. Do not modify the original designwithout permission of manufacturer.
Table 1
Reference No.
Part No.
Part Name & Description
Remarks
A2
K2CQ2CA00002
AC CORD
[M]
F1
K5D631BLA012
FUSE
[M]
JK600
K2AA2B000015
JK AC INLET
[M]
T600
G4CYAYY00137
SUB TRANSFORMER
[M]
T601
G4CYAYY00139
TRANSFORMER
[M]
L600
G0B371HA0005
LINE FILTER
[M]
Z600
ERZV10V511CS
ZENER
[M]
RL600
K6B1AEA00015
POWER RELAY
[M]
FP352
K5G502A00039
FUSE PROTECTOR
[M]
FP601
K5G502A00039
FUSE PROTECTOR
[M]
FP950
K5G102AA0002
FUSE PROTECTOR
[M]
5
SA-PM45E / SA-PM45EG / SA-PM45EE
Summary of Contents for SA-PM45E
Page 11: ...7 Operation Procedures 7 1 Main Unit Key Buttons Operation 11 SA PM45E SA PM45EG SA PM45EE ...
Page 12: ...7 2 Remote Control Key Buttons Operation 7 3 Disc Information 12 SA PM45E SA PM45EG SA PM45EE ...
Page 23: ...9 3 Main Parts Location Diagram 23 SA PM45E SA PM45EG SA PM45EE ...
Page 33: ...33 SA PM45E SA PM45EG SA PM45EE ...
Page 37: ...37 SA PM45E SA PM45EG SA PM45EE ...
Page 40: ...10 2 Check and Repair of Panel Headphone Music Port P C B 40 SA PM45E SA PM45EG SA PM45EE ...
Page 41: ...10 3 Check and Repair of Transformer P C B 41 SA PM45E SA PM45EG SA PM45EE ...
Page 42: ...10 4 Check and Repair of Main P C B 42 SA PM45E SA PM45EG SA PM45EE ...
Page 44: ...10 6 Check and Repair of USB P C B Side A 44 SA PM45E SA PM45EG SA PM45EE ...
Page 45: ...10 7 Check and Repair of USB P C B Side B 45 SA PM45E SA PM45EG SA PM45EE ...
Page 47: ...Fig 7 47 SA PM45E SA PM45EG SA PM45EE ...
Page 56: ...56 SA PM45E SA PM45EG SA PM45EE ...
Page 58: ...SA PM45E SA PM45EG SA PM45EE 58 ...
Page 64: ...64 SA PM45E SA PM45EG SA PM45EE ...
Page 74: ...SA PM45E SA PM45EG SA PM45EE 74 ...
Page 83: ...21 Exploded Views 21 1 Cabinet Parts Location SA PM45E SA PM45EG SA PM45EE 83 ...
Page 85: ...21 3 Packaging SA PM45E SA PM45EG SA PM45EE 85 ...