Panasonic CQ-JS7230TA Service Manual ▷ View online
5 BLOCK DIAGRAM
5.1. Main/Display/Tape Block
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CQ-JS7230TA
5.2. CD Changer Block
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CQ-JS7230TA
6 ALIGNMENT INSTRUCTIONS
6.1. CD DISC CENTERING ALIGHNMENT
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This adjustment is for assuring that compact discs will be placed in the center of the turntable.
<Adjustment Condition / Jig>
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Power Supply Voltage : 13.2V
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Test Disc : TCD-792A
<Adjustment Procedures>
1. Attach the adjusting screw to the upper chassis (See Figure 1.).
2. Insert the test CD (TCD-792A) into the disc No.1 position and play it.
3. After checking whether the disc is centered on the turntable, turn the adjusting screw unit it is in the center.
<Check Items>
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Check that the disc is correctly centered.
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Check that the disc is securely clamped.
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Check that no abnormal noise is produced when clamping the disc.
[Directions of Turning the Adjusting Screw]
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CD stops before its proper position : Turn the screw counterclockwise.
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CD overruns : Turn the screw clockwise.
4. After the adjustment, lock the screw.
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CQ-JS7230TA
6.2.1. Alignment Conditions
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Power Supply Voltage : DC13.2V
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Output Impedance : 4
Ω
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Output Power : 0.5W
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Balance, Fader Control : Center
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Bass, Treble Control : Center
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Dolby NR: OFF
6.2. Cassette Deck Adjustment
Note :
Do not align the FM/AM package block. When the package block is necessary, it will be supplied already aligned at the
factory.
factory.
6.2.2. Dolby NR Alignment
Step
Alignment Item
Test Tape
VTVM Connection
Adjust
Remarks
(1)
DOLBY NR Rch
RFKZ0038
TP201
VR201
Adjust for 388mV ±1.0dB
(2)
DOLBY NR Lch
RFKZ0038
TP301
VR301
Adjust for 388mV ±1.0dB
6.2.3. Alignment Points
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CQ-JS7230TA
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