Table Of Contents - Hitachi CPX1403MS Service Manual

SERVICE
MANUAL
1. Precautions
--------------------------------- 3
1-1. Safety Precautions --------------------- 3
1-2. Servicing Precautions ----------------- 5
1-3. Precautions for Electrostatically
Sensitive Devices(ESDs) ---------------- 6
2. Specifications
------------------------------ 7
3. Description of Controls
4. Alignment and Adjustments
4-1. Preadjustment -------------------------- 10
4-2. Factory/Service Mode ---------------- 10
4-3. Other Adjustments --------------------- 12
5. Using Devices and Description
5-1. Main Signal Processor(VDP3130Y) -- 17
5-2. Vertical Output(LA78040) ------------ 20
5-3. Video Output Amplifier
(TDA6108JF) ------------------------------- 21
5-4. Audio Output Amplifier(TDA7052A) --- 22
5-5. Power(STR-F6654) -------------------- 23
5-6. Audio Select switch(CD4066BE) --- 24
6. Technical Study(SMPS Operation)
6-1. VIN terminal(pin 4)
CONTENTS
----------------- 9
---------- 10
7. Trouble Shooting
------ 17
8. Block Diagram
9. PCB Layout
10. Parts List
11. Circuit Diagram
-- 25
2
: Start-up circuit ---------------------------- 25
6-2. OCP/F.B. terminal(pin 1)
: Oscillator and constant voltage
control circuit -------------------------------- 27
6-3. OCP/F.B. terminal(pin 1)
OCP circuit ---------------------------------- 29
6-4. Drive circuit ------------------------------ 30
6-5. Latch circuit ------------------------------ 30
6-6. Thermal shutdown circuit ------------ 31
6-7. Overvoltage protection circuit ------- 31
------------------------- 32
7-1. No Power -------------------------------- 32
7-2. No Raster -------------------------------- 33
7-3. No Sound -------------------------------- 34
----------------------------- 35
-------------------------------- 36
----------------------------------- 38