3-95
2. Test & debug flow
TEST
Check the POWER PART
No
Yes
No
Yes
No
No
No
Yes
Yes
Check the POWER PART
Check the regulators or diode(D601).
Check the cable connection.
(PDV02)
1. Check 27MHz system clock.
2. Check systemreset circuit.
3. Check FLASH R/Wenable signal PRD,
RWR.
4. Check RS232 SIGNALS.
5. Check FLASH Memory related circui t.
Check the
AC Vol tage
Power PCBA (110V
or 220V)
Switch on the Power PCBA
Is
the DC Vol tage
outputs OK?
(5V, 3.3V, 8V, 12V)
Is 3.3V and 2.5V DC
outputs normal on main
PCBA?
Update
FLASH(IC5A1)
successfully?
Replace FLASH( IC5A1)
A
Communication between
VCR & DVD is normally?
Connect to PC RS232 Cable and
update the FLASH memory code.
Make sure the main
PCBA don't
Содержание ABV341 Series
Страница 2: ......
Страница 36: ...3 34 3 35 2 TU IF CIRCUIT DIAGRAM PB REC...
Страница 39: ...3 40 3 41 5 JACK CIRCUIT DIAGRAM...
Страница 41: ...3 44 3 45 7 TIMER CIRCUIT DIAGRAM XBV343...
Страница 42: ...3 46 3 47 8 TIMER CIRCUIT DIAGRAM XBV342...
Страница 45: ...3 52 3 53 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...
Страница 65: ...02 12 04 R17149A ZENITH DAP202K 3 80 3 81 6 JACK CIRCUIT DIAGRAM...
Страница 70: ...LOCATION GUIDE 3 90 3 91 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW...
Страница 71: ...LOCATION GUIDE 3 92 3 93 2 MAIN P C BOARD BOTTOM VIEW...
Страница 92: ...3 114 2 Audio related Signal ASDAT3 IC501 PIN 157 ABCK IC501 PIN 148 ALRCK IC501 PIN 149 ASDATA3 FIG 14 2...
Страница 98: ...3 121 3 122 2 RF DSP SERVO CIRCUIT DIAGRAM CD DVD LD will not on COMBI SCART MTK 03 3 25 SR17445A...
Страница 99: ...3 123 3 124 3 AUDIO CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17447A...
Страница 100: ...3 125 3 126 4 AV JACK CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17446A...
Страница 103: ...3 131 3 132 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...
Страница 110: ...EXPLODED VIEW 1 Deck Mechanism Exploded View 5 1 CONTENTS SECTION 5 MECHANISM OF DVD PART MTK MODEL...
Страница 134: ...4 22 GEAR F R GEAR AY P2 P3 F R Lever Tension Base Boss CAM...