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Hard to find service manual describing the PLL circuit of the AKAI AP-306.
Thanks to have it available.
;
Gut, sehr gut! It helps me much! I couldn't find this schema nowhere. Good quality
DESCRIPTION OF SCHEMATIC DIAGRAM
VOLTAGE MEASUREMENT CONDITION:
SCHEMATIC DIAGRAM
1. When the exclusive-use AC adapter is used, the colour bar signal of colour bar generator for service is input to get the normal screen. When the audio is minimized, the voltage value is measured with the 20 k�/V tester.
WAVEFORM MEASUREMENT CONDITION:
Model
LC-45GD4U
CONTENTS
Page
1. When the exclusive-use AC adapter is used, the colour density, lightness and colour hue are set to the center position, and the signal of colour bar generator for service is observed to get waveform.
INDICATION OF RESISTOR & CAPACITOR:
RESISTOR 1. The unit of resistance ��� is omitted. (K=k�=1000 �, M=M�). 2. All resistors are ± 5%, unless otherwise noted. (J= ± 5%, F= ± 1%, D= ± 0.5%) 3. All resistors are Carbon type, unless otherwise noted. C : Solid W : Cement S : Oxide Film T : Special N : Metal Coating CAPACITOR 1. All capacitors are mF, unless otherwise noted. (P=pF=mmF). 2. All capacitors are Ceramic type, unless otherwise noted. (ML) : Mylar (TA) : Tantalum (PF) : Polypro Film (ST) : Styrol
DESCRIPTION OF SCHEMATIC DIAGRAM �������������������� D2 AV Unit ��������������������������������� D3 � D12 SUB AV Unit �������������������������������D13 � D14 PC CARD Unit ������������������������������D15 � D22 DC/DC CONVERTER-1 Unit ������������������������D23 � D26 DC/DC CONVERTER-2 Unit ������������������������D27 � D28 DVI Unit ���������������������������������D29 � D32 KEY Unit ����������������������������������� D33 R/C LED Unit ��������������������������������� D34 LINEFILTER Unit �����������������������������D35 � D36 DIGITAL Unit �������������������������������D37 � D78 MAIN Unit ������������������������������� D79 � D106 TCON TOP Unit ��������������������������� D107 � D124 TCON BOTTOM Unit ������������������������� D125 � D132 POWER Unit ����������������������������� D133 � D134 INVERTER-1 Unit �������������������������� D135 � D136 INVERTER-2 Unit �������������������������� D137 � D138 INVERTER-3 Unit �������������������������� D139 � D140 INVERTER-4 Unit �������������������������� D141 � D142 EXT SP TERMINAL Unit ���������������������������� D143
CAUTION:
This circuit diagram is original one, therefore there may be a slight difference from yours.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH �å� ( )ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.
D1
D2
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