1.2.1. Caution for fuse replacement
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 Parts 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 parts
should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design
without permission of manufacturer.
Table 1
Ref. No. Part No. Part Name & Description Remarks
12 REXX0640-J BLACK WIRE (AC TO SMPS) [M]
13 REXX0641-J RED WIRE (AC TO SMPS) [M]
23 RGRX0067KA1A REAR PANEL [M] P
23 RGRX0067K-B1 REAR PANEL [M] PC
66 RKMX0141-K TOP CABINET [M]
84 J0KD00000126 FERRITE CORE [M]
PCB3 REPX0622A SMPS P.C.B [M] (RTL)
PCB4 REPX0622A AC INLET P.C.B [M] (RTL)
DZ5701 ERZV10V511CS ZNR [M]
T2900 G4D1A0000117 SWITCHING TRANSFORMER [M]
T5701 ETS42BM18GAD SWITCHING TRANSFORMER [M]
T5751 ETS19AB256AG SWITCHING TRANSFORMER [M]
PC5701 B3PBA0000402 PHOTO COUPLER [M]
PC5702 B3PBA0000402 PHOTO COUPLER [M]
PC5720 B3PBA0000402 PHOTO COUPLER [M]
PC5799 B3PBA0000402 PHOTO COUPLER [M]
F1 K5D802APA008 FUSE [M]
FP2901 K5G401A00008 FUSE PROTECTOR [M]
TH5701 D4CAA5R10001 THERMISTOR [M]
TH5860 D4CC11040013 THERMISTOR [M]
P5701 K2AB2B000010 AC INLET [M]
A2 K2CB2CB00021 AC CORD [M]
C5700 F1BAF1020020 1000pF [M]
C5701 F0CAF334A087 0.33uF [M]
C5703 F0CAF224A085 0.22uF [M]
C5704 F1BAF1020020 1000pF [M]
6
SA-PT660P / SA-PT660PC
To Next Page
Loading...
