Apple Powercd Service Manual

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Service Source

PowerCD

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Service Source
Specifications
PowerCD
Specifications Characteristics - 1

Characteristics

Access Time

Transfer Rate

SCSI T ransfer Rate

Buffer

Rotational Speed

Average: .55 sec. (typical) Maximum (first to last block): 1 sec. (typical)
Cooked data/user bytes: 153.6 K/sec. Raw data: 175.2 K/sec.
Approximately 2.1 MB/sec. (burst)
256K
Approximately 230–530 rpm
Specifications Characteristics - 2

Interfaces

Playback Medium

One 8-pin mini DIN A/V connector; one 50-pin SCSI connector;
one audio line out; one headphone jack; one RC5 infrared remote control receiver; one wall adapter 8.8 VDC input
12-cm optical disc (CD-DA discs, red tracks of CD-V discs, CD-
ROM discs, photo CD discs)
Specifications Audio Playback - 3

Audio Playback

Playing Time

Frequency Response

Analog Output

S/N Ratio

Dynamic Range

1 hr.
20–20,000 Hz
2 Vrms +/- 2 dB
≥95 dB
≥80 dB
Specifications Audio Playback - 4

Channel Separation

Harmonic Distortion

≥90 dB
≤70 dB
Specifications Video Playback - 5

Video Playback

Playing Time

Video Out (Cinch Bus)

Y/C (S-Video) Out

Video S/N Ratio

Video Bandwidth

1 hr.
1 Vpp (75-ohms load)
1 Vpp ±10% (75-ohms load) 286 mVpp ±10% (75-ohms load)
>50 dB
>7.5 MHz (NTSC) >7.5 MHz (PAL)
Specifications Environmental - 6

Environmental

Operating Temperature

Relative Humidity

Storage Temperature

50–95°F (10–35°C)
5–90% noncondensing
-40 to 158°F (-40 to 70°C)
Specifications Electrical - 7

Electrical

Line V oltage

Frequency

Power Consumption

100–240 VAC
220–230 V, 50 Hz Europe 100 V, 50/60 Hz Japan 240 V, 50 Hz UK 120 V, 60 Hz US
15 W
Specifications Physical - 8

Physical

Dimensions

Weight

Height: 6.18 in. (15.46 cm) Width: 8.8 in. (22 cm) Depth: 1.84 in. (4.6 cm)
2.6 lb. (1.2 kg)
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Service Source

Troubleshooting

PowerCD
Troubleshooting General/ - 1

General

The Symptom Charts included in this chapter will help you diagnose specific symptoms related to your product. Because cures are listed on the charts in the order of most likely solution, try the first cure first. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next cure. (Note: If you have replaced a module, reinstall the original module before you proceed to the next cure.)
If you are not sure what the problem is, or if the Symptom Charts do not resolve the problem, refer to the Flowchart for the product family.
For additional assistance, contact Apple Technical Support.
Troubleshooting Symptom Charts/ - 2

Symptom Charts

Check the following items BEFORE you use the Symptom
Note:
Charts:
Preliminary checks 1 CD is inserted properly in PowerCD.
2 Disc is proper type (for example, audio as opposed to photo). 3 All connector pins are intact and straight. 4 All cable connections are connected correctly and are secure
(for example, power, video, SCSI). 5 Power is on for all devices. 6 All connected equipment is set properly.
Caution:
the adjustment.
Do not touch the laser motor assembly. You can disturb
Troubleshooting Symptom Charts/ - 3
Amber digital display is not on
No sound, or volume control doesnÕt operate properly
No video 1 Double-check connections are properly connected and tight.
1 Listen for motor sound. If you can hear motor, display bulb
is probably burned out. Return drive to Apple. If you cannot
hear motor, go to next step. 2 Check power adapter. If power adapter functions properly,
verify that batteries are correct type, charged, and inserted
in PowerCD correctly. 3 Connect drive to new base. If drive functions, return base to
Apple. If drive doesnÕt function, return drive and test
original base with new drive.
1 If PowerCD is connected to computer, check computerÕs
control panel for volume setting. 2 Using headphones, adjust volume control on PowerCD. 3 Run on-board diagnostic. (See userÕs manual.) If drive fails
any test, return it to Apple.
2 If PowerCD is connected to computer, check that PowerCD
Troubleshooting Symptom Charts/ - 4
software is installed correctly on computer. 3 Run on-board diagnostic. (See userÕs manual.) If drive fails
any test, return it to Apple.
Audio/Video doesnÕt respond to remote control
No photo CD image appears on computer screen
1 Replace batteries in remote control. 2 If PowerCD is connected to computer, check that PowerCD
software is installed correctly on computer. 3 Use controls on PowerCD. If controls do not work, return
drive to Apple. Test remote using new drive. If remote
doesnÕt work with new drive, replace remote control.
1 Check that PowerCD software is installed correctly on
computer. 2 Double-check items listed on card at beginning of this
section. 3 Connect drive to new base. If drive functions, return base to
Apple. If drive doesnÕt function, return drive and test
original base with new drive.
Troubleshooting Symptom Charts/ - 5
Message on computer screen says to insert photo CD, but PowerCD has disc loaded
1 Double-check items listed on card at beginning of this
section. 2 PowerCD may have lost power. Check batteries, power
adapter, and base. 3 Run on-board diagnostic. (See userÕs manual.) If PowerCD
fails any test, return it to Apple.
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