Sony KV-28WF1A Service Manual
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Sony KV-28WF1A Service Manual

Sony KV-28WF1A Service Manual

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SERVICE MANUAL

MODEL
COMMANDER
KV-28WF1A
KV-28WF1B
KV-28WF1D
KV-28WF1E
MICROFILM
DEST.
CHASSIS NO.
RM-839
Italian
SCC-K05Q-A
RM-839
French SCC-K01S-A
RM-839
AEP
SCC-K07T-A
RM-839
Spanish SCC-K06S-A
MODEL
KV-28WF1K
KV-28WF1R
KV-28WF1U
TRINITRON COLOR TV
— 1 —
KV-28WF1
BE-3D
CHASSIS
COMMANDER
DEST.
RM-839
OIRT
RM-839
OIRT
RM-839
UK
R
CHASSIS NO.
SCC-K20H-A
SCC-K20G-A
SCC-K04N-A
R

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Summary of Contents for Sony KV-28WF1A

  • Page 1: Service Manual

    KV-28WF1 SERVICE MANUAL BE-3D CHASSIS MODEL MODEL COMMANDER DEST. COMMANDER DEST. CHASSIS NO. CHASSIS NO. KV-28WF1A RM-839 Italian SCC-K05Q-A KV-28WF1K RM-839 OIRT SCC-K20H-A RM-839 French SCC-K01S-A RM-839 OIRT SCC-K20G-A KV-28WF1B KV-28WF1R RM-839 SCC-K04N-A KV-28WF1D RM-839 SCC-K07T-A KV-28WF1U KV-28WF1E RM-839 Spanish SCC-K06S-A...
  • Page 2 USEFUL INFO. USEFUL INFO. USEFUL INFO. USEFUL INFO. Error reader. The BE-3D chassis supports the use of the Error Reader. This jig, is available under part number S-188-900-10 (price code S). The displayed code shows the actual error of the TV set. Refer to the service manual or the table below for an explanation of those codes.
  • Page 3 Horizontal interference in picture during first half hour. IC606 is defective. Therefor unstable +9V (pin 3 of IC606). Replace 9V regulator IC606. Ref. Description Location Part no. IC606 LM2940T-90 D-board PSU 8-759-267-25 Visible arcing interference on screen when appliance does function. Intermittently switches off when switched Replace line output transformer T803.
  • Page 4 Does not got into standby mode completely; picture disappears but line continues to run. (1) Check Q602, Q603 and Q604 in standby switching circuit. Check reservoir capacitor C615. (2) [Above components replaced; HT not at 135V]. Replace error detector chip IC602 (SE135N). Pulses in and out of standby.

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