Cd Test Mode - Aiwa XP-R210 AHA Service Manual

CD TEST MODE

Q204
1
A MAIN C.B
PHONES/LINE OUT
3 (another side)
6
B LID C.B
IC901
2
TP1(VT)
GND
TP2(RF)
TP3
TEST LAND
(VC)
(TEO)
IC301
(FEO)
IC401
GND
LCD901
FM-ANT
BPF801
IFT803
L801
ANT801(BAR ANTENNA)
TC801
The servo circuit of this model is designed to be adjustment-free and the adjustment value and disc distinction (CA-DA. CD-R and CD-RW etc.) is
adjusted by within the IC. Therefore the adjustment is performed by each TOC reading. The adjustment conditions within the IC of each servo can be
monitored in this test mode.
1. How to start the Test Mode
Starting method of the test mode differ depending upon the type of disc being used. This is because the adjustment values of each servo also
differ depending upon the type of disc.
When using the CD-DA or CD-R
1) Short-circuit the test land and the OPEN/CLOSE SW land.
2) Insert the AC plug and install the CD-DA or CD-R disc.
3) Press the PLAY and STOP buttons in this sequence and read the TOC.
4) Press the DISPLAY/ENTER button and confirm that all LCD light up.
When using the CD-RW
1) Short-circuit the test land and the OPEN/CLOSE SW land.
2) Insert the AC plug and install the CD-RW disc.
3) Press the PLAY, STOP and DSL buttons in this sequence and read the TOC. The LCD display should display CD-r at this point.
4
4) Press the DISPLAY/ENTER button and confirm that all LCD light up.
Note 1) If the TOC cannot be read, press the DISPLAY/ENTER button once "Err" has appeared on the LCD, causing all the LCDs to become lit
up. The following steps 2 and 3 can be confirmed even if the TOC cannot be read.
Note 2) By repeatedly pressing the DISPLAY/ENTER button, all LCD will light up and the TOC display will be repeated.
Note 3) By repeatedly pressing the DSL button, the "CD-d" and "CD-r" displays will be repeated.
When the LCD displays "CD-d," ' CD-DA, CD-R is selected.
When the LCD displays "CD-r," ' CD-RW is selected.
Note 4) The test mode is cancelled by disconnecting the AC plug and removing the soldering of short land.
2. DISC distinction (confirmation of FE waveform)
This mode is possible to perform a confirmation of the disc distinction.
3
Confirmation method
3
1) Press the DSL button and select "CD-d" or "CD-r" (Refer to Note 3).
2) Install the disc.
3) Press the MODE button.
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S101
OPEN/CLOSE SW LAND
1
A MAIN C.B
TC208
CN501
PHONES/LINE OUT
CN601
VR701
3
6