Dolby
®
Model CP650 Installation Manual
Maintenance and Troubleshooting
9-7
9.3.2
Exploded View and Board Locations
Cat. No. 773
Dolby Digital Decoder
Cat. No. 790
Dolby Digital Surround EX
Decoder / Digital Aux. Input Card
Cat. No. 778
Dolby Digital Surround EX
Decoder / Digital I/OCard
Bypass
Mains Voltage
Selector Switch
(110/220 VAC)
Front Panel
Mounting Screw
Front Sub-Panel
Mounting Screws (7)
Front Sub-Panel
Cat. No. 792
Bypass Power Regulator
Bypass Power Supply
Fuse Holder 5 X 20 MM
110 VAC: T 200 mA L
220 VAC: T 100 mA L
Power / Bypass
Button
Cat. No. 774A
System Controller
Cat. No. 772A
Analog I/Oand Bypass
Cat. No. 776
Power Supply
Assembly
- or -
Cat. No. 791
Digital Crossover Card
(for use with Cat. No. 790 only)
FB425C04.CDR
Figure 9–10
Model CP650 Exploded View
Caution:
Many components used on the circuit boards are sensitive to electrostatic damage.
It is essential to wear an earthing strap while handling or changing CP650 circuit boards.
To gain access to the CP650 circuit boards:
1. Remove the AC mains power cable.
2. Open the setup control-panel access door.
3. Remove the front-panel mounting screw located in the upper right-hand corner of
the setup control panel and carefully pull the front-panel toward you to remove it.
4. Remove the seven front subpanel mounting screws, and carefully pull the
subpanel toward you to remove it.
5. Unplug the two ribbon cables connected to the internal circuit boards.
The power supply assembly can be removed by loosening the two finger screws on
the front edge of the assembly and the two rear-panel screws above and below the AC
mains connector. From the front of the unit, carefully remove the connector at the
backplane along with the two front connectors, then slide the assembly out.
